CN114171912B

CN114171912B - UWB patch antenna, antenna structure, housing assembly and electronic device

Info

Publication number: CN114171912B
Application number: CN202210118908.7A
Authority: CN
Inventors: 王宇; 鲍立芬; 冯超; 曲增朝; 周大为
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-07-26
Anticipated expiration: 2042-02-08
Also published as: CN114171912A

Abstract

The application provides a UWB patch antenna, an antenna structure, a housing assembly and an electronic device. The UWB patch antenna comprises a radiator, a medium substrate and a floor which are sequentially stacked. A first through hole is formed in the middle of the radiator, and a second through hole which is opposite to the first through hole and has the same shape with the first through hole is formed in the floor. The shell assembly comprises a decoration part, and a plurality of avoiding holes are formed in the decoration part. Antenna structure includes that a plurality of sets up the UWB patch antenna on the decoration, and the position of each UWB patch antenna on the decoration sets up to: the position of the UWB patch antenna is staggered with the avoiding hole, or the first through hole and the second through hole which are arranged on the UWB patch antenna are opposite to the avoiding hole. The casing subassembly utilizes the decoration to realize UWB antenna module and other electronic components's integration coexistence, does benefit to electronic equipment's frivolous design, and UWB antenna module can promote the antenna performance when satisfying miniaturized design requirement, keep good radiation efficiency.

Description

UWB patch antenna, antenna structure, housing assembly, and electronic device

Technical Field

The application relates to the technical field of wireless communication, in particular to a UWB patch antenna, an antenna structure, a shell assembly and an electronic device.

Background

An Ultra Wide Band (UWB) technology is a new wireless carrier communication technology that is greatly different from the conventional communication technology. The data is transmitted by sending and receiving non-sine wave extremely narrow pulses with nanosecond level or below through the carrier wave in the traditional communication system, so that the occupied frequency spectrum range is wide and the bandwidth with GHz level is wide. In addition, the UWB technology has the advantages of low system complexity, low power spectral density of transmitted signals, insensitivity to channel fading, low interception capability, high positioning accuracy and the like, and is particularly suitable for high-speed wireless access in indoor and other dense multipath places.

In recent years, with the gradual maturity of UWB technology, mobile phone manufacturers have been directing their eyes to the battlefield. Through using UWB technique, the cell-phone can realize accurate indoor location, just as human eyes general perception spatial position, but directional arbitrary smart machine all direct control, angle measurement accuracy can reach 3, like high-accuracy version "indoor GPS".

However, as the smart electronic devices such as mobile phones are loaded with more and more functions, the space of the mobile phones becomes very limited, especially, the decorative parts (also referred to as deco in the industry) behind the flagship aircraft of mobile phone manufacturers become larger, more and more electronic components such as multimedia devices are added, and the NFC antenna is integrated, so that the UWB antenna is very difficult to arrange, and how to design a miniaturized UWB antenna which can maintain high radiation efficiency and can coexist with the layout architecture of other electronic components such as multimedia devices and NFC antennas becomes a difficult problem in designing the UWB antenna.

Disclosure of Invention

The application provides a UWB patch antenna, antenna structure, casing subassembly and electronic equipment, UWB patch antenna's structure has miniaturization, high-gain's advantage, can keep good radiation efficiency. The casing subassembly utilizes the metal decoration to come UWB antenna module and other electronic components integration together, can improve electronic equipment's space utilization, does benefit to electronic equipment's frivolous design.

First aspect, the application provides a UWB patch antenna, including radiator, medium base plate and the floor that stacks gradually the setting, wherein, first through-hole has been seted up at the middle part of radiator along its thickness direction, the floor along its thickness direction on seted up with first through-hole just to and the same second through-hole of shape.

According to the UWB patch antenna, the hole is formed in the radiating body, so that the size of the UWB patch antenna can be reduced, and the UWB patch antenna meets the requirement of miniaturization design; the radiation efficiency and gain of the UWB patch antenna can be improved by opening a hole in the middle of the radiator; through also set up in the middle part on its floor with through-hole on its irradiator just to and the same through-hole of shape, can further promote UWB patch antenna's radiant efficiency and gain, strengthen UWB patch antenna's radiation ability.

In one embodiment, the shape of the first through-hole includes a circle, a "+" shape, a diamond, a rectangle, or a polygon.

In one embodiment, the radiator, the dielectric substrate and the floor of the UWB patch antenna are sheet-like or laminated structures having the same shape.

In one embodiment, the radiator of the UWB patch antenna has a rectangular shape, and the radiator includes a first radiation side extending in a first direction and a second radiation side extending in a second direction. The UWB patch antenna further comprises a feed point, wherein the feed point is arranged at one of the open circuit top points of the radiator, and the feed point is used for polarization in a first direction and a second direction.

In one embodiment, of two radiation edges of the radiator adjacent to the feed point, a first radiation edge extending along the first direction is used for realizing 8GHz resonance together with the first through hole, and the side length of the first radiation edge is less than one half of the resonance wavelength of 8 GHz; and the second radiation edge extending along the second direction is used for realizing 6.5GHz resonance together with the first through hole, and the side length of the second radiation edge is less than one half of the resonance wavelength of 6.5 GHz.

In one embodiment, the first through hole is a circular through hole having a diameter of 4 mm. The side length of the first radiating edge extending along the first direction of the radiator is 9.4mm, and the side length of the second radiating edge extending along the second direction is 11.6 mm.

In one embodiment, the first through hole has a shape of "+", and the first through hole has a length of 4.4mm and a width of 1 mm. The side length of the first radiating edge extending along the first direction of the radiator is 9.4mm, and the side length of the second radiating edge extending along the second direction is 11.6 mm.

In a second aspect, the present application provides an antenna structure for use in an electronic device, the electronic device further includes a metal decoration, the decoration has a plurality of avoiding holes. The antenna structure further includes a plurality of UWB patch antennas as described above in the first aspect, and the plurality of UWB patch antennas are provided on the decoration. Wherein the position of each said UWB patch antenna on said trim piece is arranged to be: the position of UWB patch antenna with it staggers to dodge the hole, perhaps, first through-hole and the second through-hole of seting up on the UWB patch antenna are all just right dodge the hole to can effectively reduce and set up the space for UWB patch antenna and dodge the hole reservation on the decoration, and avoid UWB patch antenna to shelter from other electronic components, for example multimedia device or NFC antenna and influence other electronic components normally work.

According to the UWB patch antenna contained in the antenna structure, the radiator is perforated, so that the size of the UWB patch antenna can be reduced, the UWB patch antenna meets the requirement of miniaturization design, and the UWB patch antenna can be arranged on a decoration piece; the radiation efficiency and gain of the UWB patch antenna can be improved by opening the hole in the middle of the radiator; through also set up in the middle part on its floor with through-hole on its irradiator just to and the same through-hole of shape, can further promote UWB patch antenna's radiant efficiency and gain, strengthen UWB patch antenna's radiation ability.

In one embodiment, the decoration is a decoration of a multimedia device, the decoration covers the multimedia device, and the plurality of avoiding holes include a plurality of first avoiding holes corresponding to a plurality of multimedia devices.

In one embodiment, the first avoiding hole is used for exposing the multimedia device. The medium base plate of UWB patch antenna along its thickness direction seted up with first through-hole on the irradiator of UWB patch antenna just to just and the same third through-hole of shape, each UWB patch antenna is in the position setting on the decoration sets up to: the position of the UWB patch antenna is staggered with the first avoidance hole; or, a first through hole, a second through hole and a third through hole which are arranged on the UWB patch antenna are all right opposite to the first avoiding hole, and the opening area of the first avoiding hole can be completely exposed from the first through hole, the second through hole and the third through hole. So, both reducible setting space for UWB patch antenna and first dodge the hole and reserve on the decoration, still can avoid UWB patch antenna to shelter from multimedia device and influence multimedia device normal work.

In one embodiment, the antenna structure further comprises an NFC antenna comprising an NFC coil, wherein the trim piece is located between the NFC coil and the UWB patch antenna.

In an implementation mode, the orthographic projection of the NFC coil on the plane where the decorating part is located is at least partially located on the decorating part, and the orthographic projection of the NFC coil on the decorating part is staggered with the position of the first avoidance hole, so that the NFC coil is prevented from shielding the multimedia device, and the multimedia device can normally work. The hole is dodged still including being used for exposing to a plurality of second of NFC coil dodges the hole, so, both can utilize the decoration to shelter from the NFC coil, prevent that the NFC coil from exposing, in order to play the guard action to the NFC coil, and improve the aesthetic property of electronic equipment outward appearance, the radio frequency signal that the hole was transmitted NFC coil and was received and dispatched is dodged to the accessible second again, in order to ensure the transmission performance of NFC antenna, make the NFC antenna can with outside NFC equipment, for example pos machine, bus card etc. carry out normal near field communication.

Wherein, work as UWB patch antenna is in position on the decoration sets up to first through-hole and the second through-hole of seting up on the UWB patch antenna are all just right when the hole is dodged to the second, not only reducible setting space of reserving is dodged the hole for UWB patch antenna and second on the decoration, can also dodge the radio frequency signal that the hole and UWB patch antenna were last to set up and second through-hole transmitted NFC antenna receiving and dispatching through the second simultaneously to avoid or reduce the influence that the UWB patch antenna that covers the second and dodge the hole to the transmission performance of NFC antenna.

Because the operating frequency range of the UWB antenna module is mainly the CH5 frequency range (6.25 GHz-6.75 GHz) and the CH9 frequency range (7.75 GHz-8.25 GHz), and the operating frequency of the NFC antenna is 13.56MHz, the UWB patch antenna and the NFC coil are far apart from each other in terms of the operating frequency range, and the possibility of mutual influence is low, therefore, the UWB patch antenna is covered on the second avoidance hole, and although the UWB patch antenna and the NFC coil are overlapped, the problem of mutual interference between radio frequency signals transmitted by the UWB patch antenna and the NFC coil does not exist.

In one embodiment, the UWB patch antenna is disposed on an exterior surface of the trim piece. Therefore, the radio-frequency signals transmitted and received by the UWB patch antenna are not shielded by the decorating part, and the normal work of the UWB patch antenna can be ensured.

In one embodiment, a groove is formed in the outer surface of the decoration, and the UWB patch antenna is disposed in the groove, so that the increase in thickness of the housing assembly caused by the UWB patch antenna can be reduced, which is beneficial to the slim design of the electronic device.

In one embodiment, the thickness of the UWB patch antenna is less than the thickness of the trim piece, and the thickness of the UWB patch antenna is less than or equal to the depth of the recess. So, after installing UWB patch antenna to the decoration for the surface parallel and level of UWB patch antenna's surface and decoration or be less than the surface of decoration, thereby make UWB patch antenna not occupy the inner space of casing subassembly, also can not increase the thickness of casing subassembly, be favorable to electronic equipment's slim design.

In one embodiment, the antenna arrangement comprises at least three UWB patch antennas spaced apart on the trim element in a triangular configuration to form a UWB antenna array arrangement.

In a third aspect, the present application provides a housing assembly of an electronic device, comprising a rear cover, a metal decoration, and the antenna structure as described in the first aspect. The rear cover is provided with an installation through hole. The decoration is fixed in the installation through hole of back lid, a plurality of dodges the hole on the decoration. A plurality of UWB patch antenna that antenna structure includes set up in on the decoration, wherein, each UWB patch antenna is in position on the decoration sets up to: the position of UWB patch antenna with it staggers to dodge the hole, perhaps, first through-hole and the second through-hole of seting up on the UWB patch antenna are all just right dodge the hole to can effectively reduce and set up the space for UWB patch antenna and dodge the hole reservation on the decoration, and avoid UWB patch antenna to shelter from other electronic components, for example multimedia device or NFC antenna and influence other electronic components normally work.

The shell assembly provided by the application is used for decorating electronic components, such as multimedia devices, through the decorating parts, the appearance effect of electronic equipment can be improved, and the layout of the multimedia devices is facilitated; utilize the decoration to come UWB antenna module and other electronic components, for example multimedia device, NFC antenna etc. integration together, can the rational utilization space to can improve electronic equipment's space utilization. Moreover, under the framework, the thickness of the shell assembly cannot be increased by the superposition of the UWB antenna module, the original framework of a multimedia device and the like cannot be changed, and the antenna performance of the NFC antenna and the normal work of the multimedia device cannot be influenced, so that the UWB antenna module can be well integrated and coexisted with the multimedia device, the NFC antenna and the like in the existing framework, and the electronic equipment is favorably designed to be light and thin. And set up UWB antenna module on the decoration and can also promote the antenna performance, keep good radiation efficiency when satisfying miniaturized designing requirement to can realize better goniometry function.

In one embodiment, the decorative element is a decorative element of a multimedia device, the decorative element overlying the multimedia device.

In one embodiment, the housing assembly further comprises a transparent lens covering and fixed to an outer side of the decoration for protecting and dust-proof the multimedia device.

In a fourth aspect, the present application provides an electronic device comprising a multimedia device and a housing assembly as described in the third aspect above. The electronic equipment provided by the application has higher space utilization rate due to the fact that the electronic equipment comprises the shell assembly.

Drawings

In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a perspective view of an electronic device according to an embodiment of the present application.

Fig. 2 is an exploded view of the electronic device shown in fig. 1.

Fig. 3 is a functional block diagram of the electronic device shown in fig. 1.

Fig. 4 is a side exploded view of a portion of the housing assembly of the electronic device shown in fig. 2.

Fig. 5a is a schematic view of a relative position between the NFC antenna and the decoration shown in fig. 4, where the view is from inside to outside of the electronic device.

Fig. 5b is a schematic view of a first relative position of the NFC antenna, the UWB antenna module and the decorative element shown in fig. 4, wherein the viewing angle is a viewing angle in a direction from the outer side to the inner side of the electronic device.

Fig. 6a is a schematic top view of a UWB patch antenna according to a first embodiment of the present application.

Fig. 6b is a schematic side view of the UWB patch antenna shown in fig. 6 a.

Fig. 6c is a schematic diagram of an exploded structure of the UWB patch antenna shown in fig. 6 a.

Fig. 7a is a schematic view illustrating a second relative position of the NFC antenna, the UWB antenna module and the decorative element shown in fig. 4, wherein the viewing angle is from the outside to the inside of the electronic device.

Fig. 7b is a schematic view illustrating a perspective view of a third relative position of the NFC antenna, the UWB antenna module and the decoration shown in fig. 4, where the perspective view is from an outside to an inside of the electronic device.

Fig. 7c is a schematic view of a fourth relative position of the NFC antenna, the UWB antenna module and the decorative element shown in fig. 4, wherein the viewing angle is a viewing angle in a direction from the outer side to the inner side of the electronic device.

Fig. 7d is a schematic diagram of another side view of the UWB patch antenna shown in fig. 6 a.

Fig. 8 is a schematic diagram of a connection structure of the UWB antenna module shown in fig. 5 b.

Fig. 9a is a schematic top view of a UWB patch antenna according to a second embodiment of the present application.

Fig. 9b is a side view of the UWB patch antenna shown in fig. 9 a.

Fig. 10a is a schematic top view of a UWB patch antenna according to a third embodiment of the present application.

Fig. 10b is a schematic side view of the UWB patch antenna shown in fig. 10 a.

Fig. 11a is a schematic top view of a UWB patch antenna according to a fourth embodiment of the present application.

Fig. 11b is a schematic side view of the UWB patch antenna shown in fig. 11 a.

Fig. 12a is a simulation diagram of current distribution when the UWB patch antenna of the first embodiment shown in fig. 6a to 6c is operated at a frequency of 8 GHZ.

Fig. 12b is a simulation diagram of the current distribution when the UWB patch antenna of the second embodiment shown in fig. 9 a-9 b operates at a frequency of 8 GHZ.

Fig. 12c is a simulation diagram of current distribution when the UWB patch antenna of the third embodiment shown in fig. 10a to 10b operates at a frequency of 8 GHZ.

Fig. 12d is a simulation diagram of the current distribution when the UWB patch antenna of the fourth embodiment shown in fig. 11 a-11 b operates at a frequency of 8 GHZ.

Fig. 13a is a simulation diagram of current distribution when the UWB patch antenna of the first embodiment shown in fig. 6a to 6c is operated at a frequency of 6.5 GHZ.

Fig. 13b is a simulation diagram of current distribution when the UWB patch antenna of the second embodiment shown in fig. 9 a-9 b is operated at a frequency of 6.5 GHZ.

Fig. 13c is a simulation diagram of current distribution when the UWB patch antenna of the third embodiment shown in fig. 10 a-10 b is operated at a frequency of 6.5 GHZ.

Fig. 13d is a simulation diagram of current distribution when the UWB patch antenna of the fourth embodiment shown in fig. 11 a-11 b is operated at a frequency of 6.5 GHZ.

Fig. 14 is a simulation graph of radiation efficiency, system efficiency, and reflection coefficient of the UWB patch antenna shown in fig. 9a to 9b, 10a to 10b, and 11a to 11b, respectively.

Fig. 15a is a gain pattern for the first embodiment UWB patch antenna shown in fig. 6 a-6 c operating at a frequency of 8 GHZ.

Fig. 15b is a gain pattern for the second embodiment UWB patch antenna illustrated in fig. 9 a-9 b operating at a frequency of 8 GHZ.

Fig. 15c is a gain pattern for the third embodiment UWB patch antenna shown in fig. 10 a-10 b operating at a frequency of 8 GHZ.

Fig. 15d is a gain pattern for the fourth embodiment of the UWB patch antenna shown in fig. 11 a-11 b operating at a frequency of 8 GHZ.

Fig. 16a is a simulation graph of radiation efficiency, system efficiency, and reflection coefficient of the UWB patch antenna shown in fig. 6a to 6c and fig. 11a to 11b, respectively.

Fig. 16b is a simulation graph of the radiation efficiency, the system efficiency, and the reflection coefficient S11 of the UWB patch antenna shown in fig. 6a to 6c and fig. 9a to 9b, respectively.

Fig. 17a is a schematic diagram of a structure of a horizontal array based on the UWB patch antennas shown in fig. 6 a-6 c.

Fig. 17b is a schematic diagram of a structure of vertical array based on the UWB patch antennas shown in fig. 6 a-6 c.

Fig. 18a is a PDOA simulation plot of horizontal and vertical angulation of the antenna array shown in fig. 17a and 17b at CH5 frequency band.

Fig. 18b is a PDOA simulation graph of horizontal angle measurement and vertical angle measurement of the antenna array shown in fig. 17a and 17b at CH9 frequency band.

Fig. 19a is a simulation graph of S-parameters of a layout structure of the UWB antenna module on the decoration shown in fig. 5 b.

Fig. 19b is a graph illustrating simulation of the efficiency of an arrangement of the UWB antenna module of fig. 5b on a decorative member.

Fig. 20a is a gain pattern of the UWB antenna module of fig. 5b when it is configured on the decorative member and operated at a frequency of 6.5 GHZ.

Fig. 20b shows the gain pattern of the UWB antenna module of fig. 5b operating at a frequency of 8GHz in a decorative trim layout configuration.

Fig. 21a is a schematic diagram of antenna architecture for three experiments set up to analyze the effect of UWB patch antennas on the performance of NFC antennas.

Fig. 21b is a simulation diagram of the magnetic field radiation intensity of the NFC antenna in the antenna architecture of the three sets of experiments shown in fig. 21 a.

Fig. 21c is an experimental data table of the magnetic flux of the V-card communicating with the NFC antenna in the antenna architecture of the three sets of experiments shown in fig. 21 a.

Description of the main elements

Electronic device	100
		Display screen assembly	11
Display screen	111
		Cover plate	112
Shell assembly	12
		Rims	121
Back cover	122
		Mounting through hole	1221
Middle frame	123
		Circuit board assembly	13
Antenna structure	20
		NFC antenna	21
NFC coil	211
		The first part	211a
The second part	211b
		First connecting end	211c
Second connecting end	211d
		UWB antenna module	22
UWB patch antenna	221、221-1、221-2、221-3
		First through hole	2210a、2210a-2
Trough	2210a-1
		Second through hole	2210b
Third through hole	2210c
		Radiating body
	2211
		First radiating edge	A
Second radiating edge	B
		Dielectric substrate
	2212
		Floor board	2213
Feed point	2214
		Feed line	222
Connector with a locking member	223
		NFC radio frequency module	23
UWB radio frequency module	24
		Processor with a memory for storing a plurality of data	31
Memory device	32
		Power supply module	33
Multimedia device	34
		Other input-output devices	35
Decoration piece	41
		Outer surface	41a
Inner surfaceFlour
		41b
First avoidance hole			411
	First region	411a
Second sub avoiding hole			411b
	Second avoiding hole	412
Lens			42
	A first direction	OX
Second direction			OY

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The drawings are for illustrative purposes only and are presented for purposes of illustration only and should not be construed as limiting the present application. It should be apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The application provides a UWB patch antenna, including irradiator, medium base plate and the floor that stacks gradually the setting, wherein, first through-hole has been seted up at the middle part of irradiator on its thickness direction of edge, the floor along its thickness direction on seted up with first through-hole just to and the same second through-hole of shape. The UWB patch antenna can meet the requirement of miniaturization design by opening a hole on a radiator of the UWB patch antenna; the radiation efficiency and gain of the UWB patch antenna can be improved by opening a hole in the middle of the radiator; through also set up in the middle part on its floor with through-hole on its irradiator just to and the same through-hole of shape, can further promote UWB patch antenna's radiant efficiency and gain, strengthen UWB patch antenna's radiation ability.

The application still provides an antenna structure who contains foretell UWB patch antenna and has antenna structure's casing subassembly, casing subassembly utilizes metal decoration to come UWB antenna module and other electronic components, for example multimedia device, NFC antenna etc. integration together, can the rational utilization space to can improve electronic equipment's space utilization. Moreover, under the framework, the thickness of the shell assembly cannot be increased by the superposition of the UWB antenna module, the original frameworks of the multimedia device, the NFC antenna and the like cannot be changed, and the antenna performance of the NFC antenna and the normal work of the multimedia device cannot be influenced, so that the UWB antenna module can be well integrated and coexisted with the multimedia device, the NFC antenna and the like in the existing framework, and the light and thin design of electronic equipment is facilitated. And set up UWB antenna module on the decoration and can also promote the antenna performance, keep good radiation efficiency when satisfying miniaturized designing requirement to can realize better goniometry function.

The application further provides an electronic device, which comprises the shell assembly, so that the space utilization rate is high.

Fig. 1-2 exemplarily show a perspective structure diagram of an electronic device 100 provided in an embodiment of the present application. The electronic device 100 includes, but is not limited to, electronic products such as a mobile phone, a tablet computer, and a wearable device (e.g., a watch). In this embodiment, the electronic device 100 is taken as a mobile phone as an example, and the technical solution of the present application is introduced.

As shown in fig. 1-2, electronic device 100 includes a display screen assembly 11, a housing assembly 12, and a circuit board assembly 13. The display screen assembly 11 includes a display screen 111 and a light-transmissive cover plate 112 covering an outer surface of the display screen 111, wherein the display screen 111 is configured to display visual output such as graphics, text, icons, video, and the like to a user. The light-transmitting cover plate 112 is used for protecting and preventing dust on the display screen 111.

The housing assembly 12 is used to mount and protect the internal electronics of the electronic device 100. The housing assembly 12 includes a frame 121, a rear cover 122 and a middle frame 123, wherein the rear cover 122, the middle frame 123, the display screen 111 and the transparent cover plate 112 are sequentially stacked, and the frame 121 is disposed between the rear cover 122 and the transparent cover plate 112. The material of the rear cover 122 is non-metal material such as glass, plastic, etc. The bezel 121 may be partially or entirely formed of a metallic material or a non-metallic material (e.g., plastic).

For example, the frame 121 and the rear cover 122, and the frame 121 and the light-transmitting cover plate 112 may be fixedly connected by glue, a buckle, or the like. When the frame 121 and the rear cover 122 are both made of non-metal materials such as plastic, the frame 121 and the rear cover 122 can also be integrally formed, that is, the frame 121 and the rear cover 122 are an integral structure. The fixing connection manner between the frame 121 and the rear cover 122 and between the frame 121 and the transparent cover plate 112 are not limited in the present application.

The periphery of the middle frame 123 is fixedly connected to the frame 121, for example, the middle frame 123 may be fixed to the frame 121 by welding, or the middle frame 123 may be integrally formed with the frame 121, that is, the middle frame 123 and the frame 121 may be an integral structure. The present application does not limit the fixing connection manner between the middle frame 123 and the side frame 121. The middle frame 123 serves as a "skeleton" of the internal structure of the electronic device 100 for carrying and securing internal structural components of the electronic device 100.

The circuit board assembly 13 is accommodated in an accommodating chamber surrounded by the middle frame 123, the bezel 121, and the rear cover 122. The circuit board assembly 13 may be fixed to the middle frame 123 by a screw connection, a snap connection, or the like. The circuit board assembly 13 may be a flexible circuit board assembly or a rigid-flex circuit board assembly for arranging the electronic components included in the electronic device 100.

Fig. 3 schematically shows functional blocks of the electronic device 100. As shown in fig. 3, the electronic device 100 may include a processor 31, a memory 32, a power module 33, a multimedia device 34, and other input and output devices 35 in addition to the display 111.

The processor 31 is used as a logic operation and control center of the electronic device 100, and is mainly responsible for data acquisition, data conversion, data processing, logic operation, communication, and execution of driving output. The processor 31 may include a plurality of input/output ports, and the processor 31 may communicate and exchange information with other functional modules or external devices through the plurality of input/output ports, so as to implement functions such as driving and controlling the electronic device 100.

The memory 32 may be accessed by the processor 31 or a peripheral interface (not shown) or the like to enable storage or retrieval of data or the like. The memory 32 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other volatile solid state storage devices.

The power module 33 is used for supplying power to other functional modules of the electronic device 100 and performing power management, so that the other functional modules of the electronic device 100 can work normally. The power module 33 may include a battery assembly (not shown), a power management unit (not shown), and the like.

The multimedia device 34 includes, but is not limited to, a camera module, a flash, a laser device, an audio device, etc.

Other input/output devices 35 may include devices for implementing functions supported by electronic device 100 such as speakers, touch pads, function keys, I/O ports, etc., that enable interaction of electronic device 100 with a user.

In this embodiment, one or more of the processor 31, memory 32, power management unit, multimedia device 34, etc. may be provided on the circuit board assembly 13. In other embodiments, the processor 31, the memory 32, the power management unit, etc. may also be disposed on other circuit board components within the electronic device 100.

It is understood that fig. 1-3 only schematically illustrate some of the structural components included in the electronic device 100, the actual configuration and location of these structural components are not limited by fig. 1 and 2, and the electronic device 100 may actually have more or less structural components relative to the structural components illustrated in fig. 1-3, for example, the electronic device 100 further includes physical keys (not shown).

In order to realize a photographing function, an existing electronic device (e.g., a mobile phone or a tablet computer) is often provided with a camera module. With the increasing requirements of users on the photographing function, the configuration of the camera module is continuously upgraded. To improve the quality of the photographs, a camera module is often provided with a plurality of cameras, including but not limited to a main camera, a wide-angle camera, a telephoto camera, a depth-of-field camera, and the like. Simultaneously, in order to assist and shoot, the camera module still includes optics auxiliary device, for example flash light and laser device etc. wherein, the flash light is used for the light filling when being shot object light not enough, and laser device is used for measuring the straight-line distance of being shot object and electronic equipment to realize functions such as auto focus. However, the integration of multiple cameras, as well as flash lamps, laser devices, and the like, presents challenges to the layout of the external appearance of the electronic device. When an existing electronic device comprising a plurality of cameras is arranged, the components are generally arranged together, the plurality of cameras are usually circular, and a laser emitting hole and a laser receiving hole are required to be formed at a laser device. At present, a laser emitting hole and a laser receiving hole of a laser device are square holes, and the inside of the laser device can be directly seen, so that the appearance of the laser device is inconsistent with the appearance of a plurality of cameras, and the appearance presenting effect of the electronic device 100 is poor.

In order to enhance the appearance of the electronic device 100 and facilitate the layout of some internal electronic components, such as the multimedia device 34, please refer to fig. 1 and fig. 2 again, the housing assembly 12 further includes a metal decoration 41 for decorating the electronic components, and the decoration 41 is fixed on the rear cover 122 and covers the electronic components, that is, the decoration 41 is located on a side of the electronic components away from the circuit board assembly 13. In the present embodiment, the garnish 41 is provided protruding outside the rear cover 122. In other embodiments, the trim 41 may be flush with the outside of the rear cover 122.

In the present embodiment, the decoration 41 is used to decorate the multimedia device 34, so as to improve the appearance effect of the electronic apparatus 100 and facilitate the layout of the multimedia device 34. In other embodiments, the garnish 41 may also be used to decorate other electronic components. The decoration 41 has a sheet or plate structure, and the shape of the decoration 41 includes, but is not limited to, circular, oval, rectangular, and polygonal. In the present application, a circular garnish 41 is taken as an example, and the structure of the garnish 41 will be described.

The rear cover 122 is provided with an installation through hole 1221 for installing the garnish 41, and the installation through hole 1221 has the same shape as the garnish 41. The decoration 41 is fixed in the installation through hole 1221 of the rear cover 122 and protrudes from the outer surface of the rear cover 122, so that the thickness of the housing assembly 12 can be reduced, which is beneficial to the thin design of the electronic device 100.

The decoration 41 is provided with a plurality of avoiding holes corresponding to the internal electronic components so as to expose the internal electronic components, or transmit wireless communication signals or sound signals transmitted and received by the internal electronic components.

In the present embodiment, a plurality of first avoiding holes 411 are respectively formed on the decoration 41 corresponding to the plurality of multimedia devices 34, that is, the plurality of avoiding holes include a plurality of first avoiding holes 411. The plurality of multimedia devices 34 may include a first multimedia device, such as a camera, a flash, a laser device, etc., and accordingly, the first avoiding hole 411 includes a first sub-avoiding hole (not shown) for exposing the first multimedia device. The camera can receive light from the corresponding first sub-avoiding hole to realize the photographing function. The flash light can provide light to the outside through corresponding first son dodge the hole to realize the light filling function. The laser device can transmit and receive laser through the corresponding first sub-avoiding hole so as to realize the distance measuring function and further realize the functions of automatic focusing and the like. Optionally, the shape of each of the first sub-avoidance holes may be kept consistent to improve the consistency of the appearance, thereby improving the appearance effect and the user experience of the electronic device 100.

In this embodiment, at least a part of the structure of the first multimedia device may be located in the first sub-avoiding hole of the decoration 41, so as to reduce the overall space occupied by the first multimedia device and the decoration 41, thereby further reducing the thickness of the housing assembly 12, and facilitating the thin design of the electronic device 100.

In this embodiment, the plurality of multimedia devices 34 may further include a second multimedia device, for example, an audio device, and accordingly, the first avoidance hole 411 includes a second sub avoidance hole 411b (as shown in fig. 5 a) corresponding to the second multimedia device, and the second multimedia device may transceive a signal, for example, a sound signal, through the second sub avoidance hole 411 b.

In the present embodiment, the housing assembly 12 further includes a transparent lens 42, and the transparent lens 42 covers and is fixed on an outer side of the decoration 41, that is, the transparent lens 42 is located on a side of the decoration 41 away from the circuit board assembly 13. The transparent lens 42 is used for protection and dust prevention of the multimedia device 34. The transparent lens 42 is a sheet structure, and the shape of the transparent lens 42 is the same as that of the decoration 41. The material of the transparent lens 42 includes, but is not limited to, glass or plastic material.

In this embodiment, the electronic device 100 further has a wireless communication function, and accordingly, the electronic device 100 further includes an antenna structure provided on the housing assembly 12. Referring to fig. 2 and fig. 3, in the present embodiment, the antenna structure 20 at least includes an NFC antenna 21, a UWB antenna module 22, an NFC rf module 23, and a UWB rf module 24, where the NFC antenna 21 implements Near Field Communication functions such as Near Field card swiping, payment, door access swiping based on Near Field Communication (NFC) technology, and the operating frequency of the NFC antenna is 13.56 MHz. The UWB antenna module 22 is used to implement an accurate indoor positioning function, and its operating frequency band mainly includes a CH5 frequency band (6.25 GHz-6.75 GHz) and a CH9 frequency band (7.75 GHz-8.25 GHz).

Specifically, the NFC antenna 21 includes an NFC coil 211 disposed on the circuit board assembly 13, and the NFC coil 211 serves as a main body of the NFC antenna 21 for transmitting and receiving radio frequency signals, and is formed by winding a conductive wire (e.g., a copper wire) along a circular track in an XY plane to form a multi-turn annular conductive wire structure. The conductive wire may be a conductive cable coated with an insulating material, or may be a metal layer disposed on the circuit board, which is not limited herein. The number of turns of the NFC coil 211 may be adjusted according to the actual design.

The NFC antenna 21 further includes a first connection end 211c and a second connection end 211d, i.e., two feeding points, which are disposed at two ends of the NFC coil 211, and the first connection end 211c and the second connection end 211d are electrically connected to the NFC radio frequency module 23, so that the NFC coil 211 is electrically connected to the NFC radio frequency module 23, and the circuit connection of the NFC antenna 21 is implemented. In one embodiment, the NFC radio frequency module 23 may be disposed on the circuit board assembly 13. In another embodiment, the NFC radio frequency module 23 may also be disposed on other circuit board components in the electronic device 100.

Referring to fig. 2, 4 and 5a, in the present embodiment, the decoration 41 includes an outer surface 41a and an inner surface 41b opposite to each other, wherein the outer surface 41a is opposite to the transparent lens 42, and the inner surface 41b is opposite to the circuit board assembly 13. The decoration 41 further comprises a first area 411a corresponding to the first multimedia device, said first sub-relief hole opening in the first area 411 a.

In the present embodiment, the NFC coil 211 is opposed to the inner surface 41b of the garnish 41, and the garnish 41 also covers at least a partial structure of the NFC coil 211. Specifically, the orthographic projection of the NFC coil 211 on the plane where the decoration 41 is located is at least partially located on the decoration 41, and the orthographic projection of the NFC coil 211 on the decoration 41 is staggered from the position of the first avoidance hole 411 on the decoration 41, so as to prevent the NFC coil 211 from shielding the multimedia device 34, thereby ensuring that the multimedia device 34 can normally operate. Corresponding to NFC coil 211 on decoration 41a plurality of second dodge hole 412 that is used for exposing NFC coil 211 is still offered to orthographic projected's position, namely, a plurality of dodges hole 412 still includes a plurality of second dodge hole 412 to avoid decoration 41 to shelter from NFC coil 211 and influence NFC coil 211 receiving and dispatching radio frequency signal, thereby ensure that NFC antenna 21 can normally work.

More specifically, the NFC coil 211 comprises a first portion 211a and a second portion 211b, wherein the orthographic projection of the first portion 211a on the plane in which the trim piece 41 is located is outside the trim piece 41; the orthographic projection of the second portion 211b on the plane of the trim piece 41 is located on the trim piece 41 and outside the first region 411a and the second sub relief hole 411 b. That is, the first portion 211a surrounds the periphery of the deco 41, and the second portion 211b overlaps the deco 41. The shape of the NFC coil 211 is not particularly limited in the present application.

In the present embodiment, the second portion 211b of the NFC coil 211 is located between the circuit board assembly 13 and the decoration 41, i.e., the decoration 41 is located on the signal transceiving side of the second portion 211b of the NFC coil 211. A plurality of second avoiding holes 412 for exposing the second portion 211b of the NFC coil 211 are opened at the position of the decoration 41 corresponding to the orthographic projection of the second portion 211b of the NFC coil 211, so as to allow the NFC antenna 21 to radiate better. Because the orthographic projection of the NFC coil 211 is staggered with the position of the first avoidance hole 411, and the position of the second avoidance hole 412 is corresponding to the orthographic projection of the NFC coil 211, therefore, the position of the first avoidance hole 411 on the decoration 41 is also staggered with the position of the second avoidance hole 412 on the decoration 41. The number of the first avoidance holes 411 and the second avoidance holes 412 is not particularly limited in the present application. It can be understood that the higher the number of second avoidance holes 412, the better the performance of the NFC antenna 21.

It can be understood that, by disposing the second portion 211b of the NFC coil 211 between the circuit board assembly 13 and the decoration 41, and disposing the second avoiding hole 412 for exposing the NFC coil 211 on the decoration 41 corresponding to the second portion 211b of the NFC coil 211, the NFC coil 211 can be shielded by the decoration 41 to prevent the NFC coil 211 from being exposed, so as to protect the NFC coil 211 and improve the appearance of the electronic device 100, and the radio frequency signal received and transmitted by the second portion 211b of the NFC coil 211 can be transmitted through the second avoiding hole 412 to ensure the transmission performance of the NFC antenna 21, so that the NFC antenna 21 can perform normal near field communication with an external NFC device (not shown), such as a pos machine, a bus card, and the like.

In the present embodiment, the metal decoration 41 can ensure that the decoration 41 protruding from the rear cover 122 has sufficient structural strength and is not easily deformed, and the metal decoration 41 has good appearance performance, so that the appearance performance of the electronic device 100 can be improved and the user's requirements can be satisfied. The NFC antenna 21 adopts the structure of the NFC coil 211 provided in fig. 4-5 a of the present application, and the second avoiding hole 412 formed in the decoration 41 can prevent the decoration 41 made of a metal material from affecting the transmission performance of the NFC antenna 21, so as to ensure that the NFC antenna 21 can normally operate and improve the card reading success rate.

In an embodiment, the second avoiding hole 412 may be filled with an insulating material, such as plastic, sponge, rubber, silicone, and the like, so as to ensure that the NFC antenna 21 can normally operate, and at the same time, ensure the structural integrity or the aesthetic property of the decoration 41, thereby improving the aesthetic property of the appearance of the electronic device 100.

Referring to fig. 2, 4 and 5b, the UWB antenna module 22 includes a plurality of UWB patch antennas 221 disposed on the decoration 41. When the number of the UWB patch antennas 221 is one, the UWB antenna module 22 can implement unidirectional positioning (linear positioning); when the number of the UWB patch antennas 221 is two, the UWB antenna module 22 can realize bidirectional positioning (planar positioning); when the number of the UWB patch antennas 221 is three, the UWB antenna module 22 can realize positioning in three XYZ directions (spatial positioning).

In the present embodiment, the UWB antenna module 22 of the present application will be described by taking an example in which the UWB antenna module 22 includes three UWB patch antennas 221, that is, a first UWB patch antenna 221a, a second UWB patch antenna 221b, and a third UWB patch antenna 221 c.

Three UWB patch antennas 221 are spaced apart in a triangular shape on the trim 41 to form a UWB antenna array structure. Two of the UWB patch antennas 221, for example, the first UWB patch antenna 221a and the second UWB patch antenna 221b are vertically arrayed and used for vertical angle measurement, and two of the UWB patch antennas 221, for example, the first UWB patch antenna 221a and the third UWB patch antenna 221c are horizontally arrayed and used for horizontal angle measurement.

Currently, the conventional UWB positioning methods mainly include Time Of flight (tof), Time Of Arrival (TOA), Time Difference Of Arrival (TDOA), Angle Of Arrival (AOA), Phase Difference Of Arrival (PDOA), and other methods, wherein some positioning methods may be used alone, and some positioning methods need to be combined with other positioning methods for positioning. For example, an angle of arrival (AOA) of an electromagnetic wave signal transmitted by another electronic device (e.g., a watch) at the transmitting end can be obtained on the electronic device (e.g., a mobile phone) at the receiving end based on the phase difference of arrival (PDOA) detected by the UWB antenna module 22, so that the other electronic device at the transmitting end can be located by using the UWB antenna module 22. It should be noted that the principle of using the UWB antenna module 22 for positioning is prior art, and details of the specific technology refer to related descriptions of the prior art, which are not described herein again.

Fig. 6a to fig. 6c are schematic structural diagrams of the UWB patch antenna 221 according to the first embodiment of the present application, wherein fig. 6a is a schematic top-view structural diagram of the UWB patch antenna 221, fig. 6b is a schematic side-view structural diagram of the UWB patch antenna 221 shown in fig. 6a, and fig. 6c is a schematic exploded structural diagram of the UWB patch antenna 221 shown in fig. 6 a.

In the present embodiment, each UWB patch antenna 221 is a miniaturized dual band patch (patch) antenna for realizing indoor positioning. Each UWB patch antenna 221 includes a radiator 2211, a dielectric substrate 2212, and a floor 2213, which are sequentially stacked, where the radiator 2211 and the floor 2213 are made of a metal material, and the dielectric substrate 2212 is made of a Liquid Crystal Polymer (LCP) (Dk dielectric constant is 3, and Df loss factor is 0.004).

The planar size of the radiator 2211 is equal to or slightly smaller than that of the floor 2213, and the planar size of the dielectric substrate 2212 is equal to or slightly larger than that of the radiator 2211. In the present embodiment, the radiator 2211 is opened with the first through hole 2210a in the thickness direction thereof to reduce the size of the UWB patch antenna 221, so that the UWB patch antenna 221 satisfies the design requirement of miniaturization, and can be disposed on the garnish 41.

The radiator 2211, the dielectric substrate 2212 and the floor 2213 of the UWB patch antenna 221 are sheet-like or layered structures having the same shape including, but not limited to, a rectangle, a circle and a polygon. In the present embodiment, the radiator 2211 of the UWB patch antenna 221 has a rectangular shape, and the radiator 2211 includes a first radiating edge a extending in a first direction OX and a second radiating edge B extending in a second direction OY, wherein the first direction OX is perpendicular to the second direction OY. The UWB patch antenna 221 further includes a feed point 2214, the feed point 2214 is disposed at one of the open vertices of the radiator 2211, and the feed point 2214 is used for polarization in the first direction OX and the second direction OY. Among two adjacent radiating edges of the radiator 2211 and the feed point 2214, a first radiating edge a extending along the first direction OX is used for realizing 8GHz resonance together with the first through hole 2210a, and the side length of the first radiating edge a is less than one half of the resonance wavelength of 8 GHz; the second radiation side B extending in the second direction OY is used to realize a 6.5GHz resonance together with the first via 2210a, and the side length of the second radiation side B is less than one-half of the resonance wavelength of 6.5 GHz.

It can be understood that for the radiator of the un-apertured UWB patch antenna, in order to achieve a resonance of 8GHz, the side length of the corresponding radiating edge needs to be equal to one half of the resonance wavelength of 8 GHz; to achieve a resonance of 6.5GHz, the side length of the corresponding radiating edge needs to be equal to one half of the resonance wavelength of 6.5 GHz. In contrast, in the radiator 2211 of the present embodiment, since the radiator 2211 is opened with the first through hole 2210a, the side length of the first radiating edge a can be reduced to less than one half of the resonant wavelength of 8GHz, and 8GHz resonance can be realized together with the first through hole 2210 a; the side length of the second radiation side B can be reduced to less than one-half of the resonance wavelength of 6.5GHz, and can realize 6.5GHz resonance together with the first through hole 2210 a. That is, the radiator 2211 in the present embodiment can be reduced in size, and can be provided on the garnish 41 so that the UWB patch antenna 221 meets the design requirement for miniaturization.

The first through hole 2210a may be opened at an edge or a middle portion of the radiator 2211. In the present embodiment, the first through hole 2210a is opened at the middle of the radiator 2211. It should be noted that "middle" as used herein refers to a non-edge location, which may be a central location or an off-center location, so that the UWB patch antenna 221 is better adapted to the architecture of the trim piece 41. The shape of the first through hole 2210a includes, but is not limited to, "+" shaped, circular, diamond shaped, rectangular, and polygonal.

In one embodiment, as shown in FIGS. 6 a-6 c, the first through bore 2210a is a circular through bore having a diameter of 4 mm. The side length of the first radiating side a extending along the first direction OX of the radiator 2211 is 9.4mm, the side length of the second radiating side B extending along the second direction OY is 11.6mm, and the thickness of the dielectric substrate 2212 is 0.3 mm.

Referring to fig. 4 and 5b again, in one embodiment, the UWB patch antenna 221 is disposed on the outer surface 41a of the decoration 41, that is, the UWB patch antenna 221 is located between the decoration 41 and the transparent lens 42, so that the radio frequency signal transmitted and received by the UWB patch antenna 221 is not shielded by the decoration 41, thereby ensuring that the UWB patch antenna 221 normally operates.

In another embodiment, a groove (not shown) may be formed on the outer surface 41a of the decoration 41, and the UWB patch antenna 221 may be disposed in the groove, so that the increase in thickness of the housing assembly 12 caused by the UWB patch antenna 221 may be reduced, which is beneficial to the slim design of the electronic device 100. Further, the thickness of the UWB patch antenna 221 is smaller than that of the garnish 41, for example, the thickness of the garnish 41 is generally 0.6mm or more, and the thickness of the UWB patch antenna 221 is generally about 0.3 mm. The thickness of the UWB patch antenna 221 is less than or equal to the depth of the groove. In this way, after the UWB patch antenna 221 is mounted to the decorative member 41, the outer surface of the UWB patch antenna 221 is flush with the surface of the decorative member 41 or lower than the surface of the decorative member 41, so that the UWB patch antenna 221 does not occupy the inner space of the housing assembly 12, and the thickness of the housing assembly 12 is not increased, which is beneficial to the thin design of the electronic device 100.

In this embodiment, the position of the UWB patch antenna 221 on the decoration 41 may be offset from the avoidance holes, i.e., the first avoidance hole 411 and the second avoidance hole 412. For example, as shown in fig. 5b, the UWB patch antenna 221b is located on the decoration 41 at a position offset from both the first avoidance hole 411 and the second avoidance hole 412. Alternatively, as shown in fig. 7a, the positions of the

UWB patch antennas

221b and 221c on the decoration 41 are both staggered from the first escape hole 411 and the second escape hole 412.

In the present embodiment, the position of the UWB patch antenna 221 on the decoration 41 may be further set such that the first through hole 2210a and the second through hole 2210b formed on the UWB patch antenna 221 are opposite to the avoiding holes, i.e., the first avoiding hole 411 and the second avoiding hole 412.

Specifically, referring to fig. 6b and 6c, the floor 2213 of the UWB patch antenna 221 is provided with a second through hole 2210b opposite to the first through hole 2210a in the thickness direction thereof and having the same shape as the first through hole 2210 a. The second through hole 2210b may have a dimension larger than, equal to, or smaller than that of the first through hole 2210a, which is not limited in the present application. In the present application, the UWB patch antenna 221 will be described by taking as an example that the size of the second through hole 2210b is equal to the size of the first through hole 2210 a.

As shown in fig. 4 to 5b, the decoration 41 is located between the NFC coil 211 and the UWB patch antenna 221, the position of the UWB patch antenna 221 on the decoration 41 may be further set to be that the first through hole 2210a and the second through hole 2210b formed on the UWB patch antenna 221 are both facing at least a partial region of the second avoiding hole 412, so as to reduce the setting space reserved for the UWB patch antenna 221 and the second avoiding hole 412 on the decoration 41, and meanwhile, the radio frequency signal transmitted and received by the NFC antenna 21 may be transmitted through the second avoiding hole 412 and the first through hole 2210a and the second through hole 2210b formed on the UWB patch antenna 221, so as to prevent the NFC patch antenna 221 from shielding the second avoiding hole 412 and affecting the transmission and reception of the radio frequency signal by the NFC antenna 21, thereby ensuring that the NFC antenna 21 can normally operate. For example, as shown in fig. 5b, at least two second avoiding holes 412 are formed in the decoration 41, the first through hole 2210a and the second through hole 2210b formed in the UWB patch antenna 221a are respectively aligned to at least a partial area of one of the second avoiding holes 412, and the first through hole 2210a and the second through hole 2210b formed in the UWB patch antenna 221c are respectively aligned to at least a partial area of the other second avoiding hole 412. It should be noted that, since the operating frequency bands of the UWB antenna module 22 are mainly the CH5 frequency band (6.25 GHz-6.75 GHz) and the CH9 frequency band (7.75 GHz-8.25 GHz), and the operating frequency of the NFC antenna 21 is 13.56MHz, from the operating frequency band, the two are far apart, and the possibility of mutual influence is very small, therefore, covering the UWB patch antenna 221 on the second avoidance hole 412, although the UWB patch antenna 221 and the NFC coil 211 are overlapped, there is no problem of mutual interference between radio frequency signals transmitted by the two.

As shown in fig. 2 and 4, the decoration 41 is further located between the multimedia device 34 and the UWB patch antenna 221, and the position of the UWB patch antenna 221 on the decoration 41 may be further set such that the first through hole 2210a and the second through hole 2210b formed on the UWB patch antenna 221 are both directly opposite to the first avoidance hole 411, so as to reduce the setting space reserved for the UWB patch antenna 221 and the first avoidance hole 411 on the decoration 41, and avoid the influence of the UWB patch antenna 221 shielding the multimedia device 34 on the normal operation of the multimedia device 34. For example, as shown in fig. 7b, the first through hole 2210a and the second through hole 2210b formed in the UWB patch antenna 221c are both opposite to the second sub-avoidance hole 411b, which not only reduces the setting space reserved for the UWB patch antenna 221c and the second sub-avoidance hole 411b on the decoration 41, but also can transmit the sound signal received and transmitted by the audio device through the second sub-avoidance hole 411b and the first through hole 2210a and the second through hole 2210b formed in the UWB patch antenna 221c, so as to prevent the UWB patch antenna 221c from shielding the audio device and affecting the sounding or receiving of the audio device, thereby ensuring the audio effect of the audio device.

For example, as shown in fig. 5b, the second through hole 2210b may be formed in the floor 2213 of the

UWB patch antenna

221a and 221c, and the second through hole 2210b may or may not be formed in the floor 2213 of the UWB patch antenna 221 b.

Referring to fig. 7c and 7d, the dielectric substrate 2212 of the UWB patch antenna 221 is provided with a third through hole 2210c along the thickness direction thereof, which is opposite to the first through hole 2210a of the radiator 2211 of the UWB patch antenna 221 and has the same shape as the first through hole 2210 a. In this manner, the first through hole 2210a, the second through hole 2210b, and the third through hole 2210c communicate with each other in the UWB patch antenna 221. In the present embodiment, the position of the UWB patch antenna 221 on the decoration 41 may be further set such that the first through hole 2210a, the second through hole 2210b, and the third through hole 2210c formed in the UWB patch antenna 221 are all facing the first avoiding hole 411, and the opening area of the first avoiding hole 411 can be completely exposed from the first through hole 2210a, the second through hole 2210b, and the third through hole 2210 c. Therefore, the arrangement space reserved for the UWB patch antenna 221 and the first avoidance hole 411 on the decoration 41 can be reduced, and the situation that the UWB patch antenna 221 blocks the multimedia device 34 to influence the normal operation of the multimedia device 34 can be avoided. For example, as shown in fig. 7c, the first through hole 2210a, the second through hole 2210b, and the third through hole 2210c formed in the UWB patch antenna 221b are all opposite to the first sub-avoiding hole (not shown) formed in the first area 411a, so that the multimedia device 34 can be exposed from the first sub-avoiding hole, the first through hole 2210a, the second through hole 2210b, and the third through hole 2210c for normal operation, such as taking a picture.

It should be noted that fig. 5b and fig. 7a to fig. 7c are only used to illustrate different layout architectures of the UWB patch antennas 221 on the decoration 41, and those skilled in the art may also make other variations or modifications on the layout architecture of the UWB patch antennas 221, and all of them should be covered in the protection scope of the present application.

Referring to fig. 8, the UWB antenna module 22 further includes three power feed lines 222 and a connector 223, such as a board-to-board connector. The connector 223 may be disposed in a space between the decoration 41 and the circuit board assembly 13, and a wire hole (not shown) may be reserved on the decoration 41. The three feeder lines 222 correspond to the three UWB patch antennas 221 one by one, and one end of each feeder line 222 is electrically connected to the feed point 2214 of the corresponding UWB patch antenna 221, and the other end thereof may pass through a wiring hole reserved in the decoration 41 and be electrically connected to the connector 223. The connector 223 is electrically connected to another connector (not shown) on the circuit board assembly 13, such as a board-to-board connector, which is electrically connected to the UWB radio frequency module 24, thereby electrically connecting the three UWB patch antennas 221 to the UWB radio frequency module 24, and realizing circuit connection of the UWB patch antennas 221. In other embodiments, the other connector and the UWB radio frequency module 24 may also be disposed on other circuit board components within the electronic device 100.

As described above, the operating frequency bands of the UWB antenna module 22 provided in the embodiments of the present invention are the CH5 frequency band (6.25 GHz-6.75 GHz) and the CH9 frequency band (7.75 GHz-8.25 GHz), and the size of the radiator 2211 of the UWB patch antenna 221 may be 9.4mm × 11.6 mm.

The antenna performance of the UWB patch antenna 221 is analyzed below by comparing the UWB patch antenna of four different embodiments having different aperture/slot structures based on the same dual-frequency resonance frequency (6.5 GHz and 8 GHz) requirement and the same miniaturization design requirement (9.4 mm 11.6 mm), wherein the aperture positions and/or shapes of the UWB patch antenna are different in the four different embodiments.

As shown in fig. 6a to 6c, in the first embodiment, a first through hole 2210a is formed in the middle of the radiator 2211, and a second through hole 2210b, which is opposite to the first through hole 2210a and has the same shape as the first through hole 2210a, is formed in the floor 2213. Wherein, the first through hole 2210a is a circular through hole having a diameter of 4 mm.

Fig. 9a to 9b are schematic structural diagrams of a UWB patch antenna 221-1 according to a second embodiment of the present application. Fig. 9a is a schematic top view of the UWB patch antenna 221-1, and fig. 9b is a schematic side view of the UWB patch antenna 221-1 shown in fig. 9 a. The structure of the UWB patch antenna 221-1 provided by the second embodiment is similar to that of the UWB patch antenna 221 of the first embodiment shown in fig. 6a to 6c, except that: in the second embodiment, the radiator 2211 is grooved on its edges, for example, four rectangular grooves 2210a-1 are grooved in the middle of each edge of the radiator 2211, and no grooving/punching is performed on the floor 2213. Wherein each groove 2210a-1 penetrates through two opposite surfaces of the radiator 2211, and the length of each groove 2210a-1 is 2mm and the width is 1 mm.

Fig. 10a to 10b are schematic structural diagrams of a UWB patch antenna 221-2 according to a third embodiment of the present application. Fig. 10a is a schematic top view of the UWB patch antenna 221-2, and fig. 10b is a schematic side view of the UWB patch antenna 221-2 shown in fig. 10 a. The third embodiment provides a UWB patch antenna 221-2 having a structure similar to that of the UWB patch antenna 221 of the first embodiment shown in fig. 6a to 6c, except that: in the third embodiment, the first through hole 2210a-2 of the radiator 2211 has a "+" shape, and no opening is made in the floor 2213. Wherein, the first through hole 2210-2 has a length of 4.4mm and a width of 1 mm.

Fig. 11a to 11b are schematic structural diagrams of a UWB patch antenna 221-3 according to a fourth embodiment of the present application. Fig. 11a is a schematic top view of the UWB patch antenna 221-3, and fig. 11b is a schematic side view of the UWB patch antenna 221-3 shown in fig. 11 a. The structure of the UWB patch antenna 221-2 provided by the fourth embodiment is similar to that of the UWB patch antenna 221 of the first embodiment shown in fig. 6a to 6c, except that: in the fourth embodiment, no hole is formed in the floor 2213.

Since each UWB patch antenna 221, 221-1, 222-1, 223-1 is a patch antenna and the profile (i.e., thickness) is extremely small, the patch antenna is biased toward an ideal resonant cavity structure, wherein the ideal resonant cavity structure has the following characteristics: the edge current of the radiator is relatively uniform, and the middle current is also relatively uniform.

Fig. 12 a-12 d are graphs showing current distribution simulations of the UWB patch antennas 221, 221-1, 221-2 and 221-3 of the first to fourth embodiments when operating at a frequency of 8GHZ, respectively. Specifically, fig. 12a is a simulation diagram of current distribution when the UWB patch antenna 221 of the first embodiment shown in fig. 6a to 6c operates at a frequency of 8GHZ, fig. 12b is a simulation diagram of current distribution when the UWB patch antenna 221-1 of the second embodiment shown in fig. 9a to 9b operates at a frequency of 8GHZ, fig. 12c is a simulation diagram of current distribution when the UWB patch antenna 221-2 of the third embodiment shown in fig. 10a to 10b operates at a frequency of 8GHZ, and fig. 12d is a simulation diagram of current distribution when the UWB patch antenna 221-3 of the fourth embodiment shown in fig. 11a to 11b operates at a frequency of 8 GHZ.

As can be seen from the current simulation diagrams shown in fig. 12a to 12d, when the various UWB patch antennas generate 8GHz resonance in the first direction OX, the current distribution at the edges of the various UWB patch antennas is relatively uniform and the current distribution at the middle is also relatively uniform in the second direction OY. It can be seen that the same miniaturization can be achieved by opening a hole in the middle of the radiator 2211 and notching the edge of the radiator 2211.

Fig. 13 a-13 d are graphs showing current distribution simulations of the UWB patch antennas 221-1, 221-2, 221-3 of the first to fourth embodiments when operating at a frequency of 6.5GHZ, respectively. Specifically, fig. 13a is a simulation diagram of current distribution when the UWB patch antenna of the first embodiment shown in fig. 6a to 6c operates at a frequency of 6.5GHZ, fig. 13b is a simulation diagram of current distribution when the UWB patch antenna 221-1 of the second embodiment shown in fig. 9a to 9b operates at a frequency of 6.5GHZ, fig. 13c is a simulation diagram of current distribution when the UWB patch antenna 221-2 of the third embodiment shown in fig. 10a to 10b operates at a frequency of 6.5GHZ, and fig. 13d is a simulation diagram of current distribution when the UWB patch antenna 221-3 of the fourth embodiment shown in fig. 11a to 11b operates at a frequency of 6.5 GHZ.

As can be seen from the current simulation diagrams shown in fig. 13a to 13c, when the various UWB patch antennas generate 6.5GHz resonance in the second direction OY, the current distribution at the edges of the various UWB patch antennas is relatively uniform and the current distribution at the middle is also relatively uniform in the first direction OX. It can be seen that the current distribution of various UWB patch antennas operating at 6.5GHz has the same rule.

Please refer to fig. 14, which is a simulation graph of the radiation efficiency, the system efficiency and the reflection coefficient S11 of the UWB patch antenna 221-1 shown in fig. 9 a-9 b, the UWB patch antenna 221-2 shown in fig. 10 a-10 b and the UWB patch antenna 221-3 shown in fig. 11 a-11 b. In fig. 14, curves R1, R2, and R3 represent simulated curves of the radiation efficiencies of the UWB patch antennas 221-1, 221-2, and 221-3, respectively, and curves S11-1, S11-2, and S11-3 represent simulated curves of the reflection coefficients S11 of the UWB patch antennas 221-1, 221-2, and 221-3, respectively. Curves T1, T2, T3 in FIG. 14 represent simulated curves of system efficiency for UWB patch antennas 221-1, 221-2, 221-3, respectively.

As shown in fig. 9 a-9 b, 10 a-10 b, and 11 a-11 b, all three UWB patch antennas 221-1, 221-2, 221-3 are perforated/slotted only in the radiator, except that: the position and the shape of the slot of the UWB patch antenna 221-1 are different from those of the UWB patch antennas 221-2 and 221-3; the aperture shape of the UWB patch antenna 221-2 is the same as the aperture position of the UWB patch antenna 221-2221-3, but the aperture shape is different.

As can be seen from curves S11-1, S11-2 and S11-3 shown in FIG. 14, the three UWB patch antennas 221-1, 221-2 and 221-3 all realize dual-frequency performance, and the central frequency points (resonant frequencies) are basically near 6.5GHz and 8GHz, so that the basic requirements of dual-frequency resonance of the UWB patch antennas can be met.

Comparing the curves R1, R2, R3 in fig. 14, it can be seen that the radiation efficiency of the UWB patch antennas 221-2 and 221-3 having the central opening structure is improved by 0.5dB, relative to the radiation efficiency of the UWB patch antenna 221-1 having the edge slot structure.

The reason is that, as can be seen from the operation principle of the patch antenna, the edge of the radiator 2211 of the UWB patch antenna is open-circuited, the fringe electric field is strong, and the central electric field is weak. Thus, when the slot is formed on the edge of the radiator 2211, the electric field loss is large due to the strong electric field at the edge of the radiator 2211, and thus the radiation efficiency is reduced; when the opening is made in the middle of the radiator 2211, the electric field loss caused by the opening in the middle is relatively small because the electric field in the middle of the radiator 2211 is weak, so that the radiation efficiency of the UWB patch antennas 221-2 and 221-3 with the openings in the middle is improved by 0.5dB compared with the radiation efficiency of the UWB patch antenna 221-1 with the slot on the edge.

Further, as can be seen from comparison of the curves R2 and R3 in fig. 14, the shapes of the openings of the radiators 2211 of the UWB patch antennas 221-2 and 221-3 are different, but there is substantially no significant difference in the radiation efficiency of the UWB patch antennas 221-2 and 221-3.

Fig. 15 a-15 d are also shown for the gain patterns of the UWB patch antennas 221, 221-1, 221-2, 221-3 of the first to fourth embodiments when operating at a frequency of 8 GHZ. Specifically, fig. 15a is a gain pattern when the UWB patch antenna 221 of the first embodiment shown in fig. 6a to 6c operates at a frequency of 8GHZ, fig. 15b is a gain pattern when the UWB patch antenna 221-1 of the second embodiment shown in fig. 9a to 9b operates at a frequency of 8GHZ, fig. 15c is a gain pattern when the UWB patch antenna 221-2 of the third embodiment shown in fig. 10a to 10b operates at a frequency of 8GHZ, and fig. 15d is a gain pattern when the UWB patch antenna 221-3 of the fourth embodiment shown in fig. 11a to 11b operates at a frequency of 8 GHZ.

Comparing the gain pattern shapes shown in fig. 15 a-15 d, the gain pattern shapes of the four UWB patch antennas 221, 221-1, 221-2, 221-3 operating at a frequency of 8GHZ are similar and are relatively rounded.

In addition, as can be seen from fig. 15a, although the center of the floor of the UWB patch antenna 221 is also perforated, the pattern thereof remains rounded and no distortion occurs.

Comparing the radiation efficiency parameters (Rad. effective.), the system efficiency parameters (Tot. effective.), and the Gain parameters (Rizd. Gain) shown in FIGS. 15 a-15 d, the radiation efficiency parameters (Rad. effective.) of the UWB patch antennas 221, 221-1, 221-2, and 221-3 and the system efficiency parameters (Tot. effective.) all differ by about 0.5dB, which indicates that the reflection coefficients S11 of the various UWB patch antennas 221, 221-1, 221-2, and 221-3 are substantially the same. When the reflection coefficients S11 match, the gains may be compared.

Comparing the radiation efficiency parameter (rad. effective.), the system efficiency parameter (tot. effective.), and the Gain parameter (Rizd. Gain) shown in FIGS. 15 b-15 d, it can be seen that the UWB patch antennas 221-2 and 221-3 having the middle opening structure have stronger directivity, higher efficiency, and higher Gain by about 1dB, compared to the UWB patch antenna 221-1 having the edge slot structure.

Comparing the radiation efficiency parameter (rad. effective.), the system efficiency parameter (tot. effective.), and the Gain parameter (Rizd. Gain) shown in FIG. 15a and FIG. 15d, it can be seen that, compared to the UWB patch antenna 221-3 without opening a hole on the floor, the UWB patch antenna 221 also opens a hole on the middle portion of the floor, and the Gain is increased by about 1dB, that is, the Gain value of the antenna is further increased.

Fig. 16a is a graph showing simulation results of the radiation efficiency, system efficiency and reflection coefficient S11 of the UWB patch antenna 221 shown in fig. 6a to 6c and the UWB patch antenna 221-3 shown in fig. 11a to 11 b. In fig. 16a, curves R4 and R3 represent simulated curves of the radiation efficiency of the UWB patch antennas 221 and 221-3, respectively, curves S11-4 and S11-3 represent simulated curves of the reflection coefficient S11 of the UWB patch antennas 221 and 221-3, respectively, and curves T4 and T3 represent simulated curves of the system efficiency of the UWB patch antennas 221 and 221-3, respectively.

According to the above description, the structures of the UWB patch antennas 221 and 221-3 are different only in that the middle of the floor of the UWB patch antenna 221 is perforated, and the floor of the UWB patch antenna 221-3 is not perforated.

As can be seen from curves S11-4 and S11-3 shown in FIG. 16a, the UWB patch antennas 221 and 221-3 both realize dual-frequency performance, and the central frequency points (resonant frequencies) are substantially near 6.5GHz and 8GHz, which can meet the basic requirements of dual-frequency resonance of the UWB patch antennas.

As can be seen from the curves R4 and R3 in fig. 16a, the radiation efficiency of the UWB patch antenna 221 is improved by more than 0.5dB because the middle part of the floor is also perforated, compared to the radiation efficiency of the UWB patch antenna 221-3 without the floor being perforated, i.e., the radiation capability of the UWB patch antenna 221 is further enhanced after the floor is perforated.

The reason is that a hole is formed in the floor, so that the electromagnetic field excited by the radiator can be radiated to the outside through the hole in the floor, thereby improving the radiation efficiency and bandwidth of the UWB patch antenna 221 and enhancing the radiation capability of the UWB patch antenna 221. As can also be seen from the current simulation diagrams shown in fig. 12a and fig. 13a, there is also a partial radiation current at the central opening of the UWB patch antenna 221.

Fig. 16b is a graph showing simulation results of the radiation efficiency, system efficiency and reflection coefficient S11 of the UWB patch antenna 221 shown in fig. 6a to 6c and the UWB patch antenna 221-1 shown in fig. 9a to 9 b. In fig. 16b, curves R4 and R1 represent simulated curves of the radiation efficiency of the UWB patch antennas 221 and 221-1, respectively, curves S11-4 and S11-1 represent simulated curves of the reflection coefficient S11 of the UWB patch antennas 221 and 221-1, respectively, and curves T4 and T1 represent simulated curves of the system efficiency of the UWB patch antennas 221 and 221-1, respectively.

As can be seen from curves S11-4 and S11-1 shown in FIG. 16b, the UWB patch antennas 221 and 221-1 both realize dual-frequency performance, and the center frequency points (resonant frequencies) are basically near 6.5GHz and 8GHz, which can meet the basic requirements of dual-frequency resonance of the UWB patch antennas.

As can be seen from the curves R4 and R1 in fig. 16b, the radiation efficiency of the UWB patch antenna 221 is improved by more than 1dB because the middle portions of the radiator and the floor are opened, compared with the radiation efficiency of the UWB patch antenna 221-1 with the radiator having a grooved edge and the floor not grooved.

As can be seen from the above analysis, the UWB patch antenna 221 provided in the embodiment of the present application can satisfy the requirement for a compact design of the UWB patch antenna 221 by forming a hole in the radiator 2211; by forming the hole in the middle of the radiator 2211, the radiation efficiency and gain of the UWB patch antenna 221 can be improved; through opening the through hole that faces just and the same shape with the through hole on irradiator 2211 in the middle part of floor 2213 also, can further promote the radiation efficiency and the gain of UWB patch antenna 221, reinforcing UWB patch antenna 221's radiation ability. It can be seen that the structure of the UWB patch antenna 221 provided in the embodiments of the present application has advantages of miniaturization and high gain, and can optimize antenna performance. In addition, the shape of the opening in the middle of the radiator 2211 is changed without substantially affecting the radiation efficiency of the UWB patch antenna 221.

Next, based on the UWB patch antenna 221 provided in the embodiment of the present application, that is, the patch antenna structure in which the central portions of the radiator 2211 and the floor 2213 are both opened, a horizontal array and a vertical array are performed to analyze the angle measurement function of the UWB patch antenna 221.

Fig. 17a and 17b are also shown, in which fig. 17a is a schematic diagram of a structure of performing horizontal array based on the UWB patch antenna 221 shown in fig. 6 a-6 c. Fig. 17b is a schematic diagram of a structure of vertical array based on the UWB patch antenna 221 shown in fig. 6a to 6 c. The distance between the two

UWB patch antennas

1, 2 of the horizontal array is 16mm, and the distance between the two

UWB patch antennas

1, 2 of the vertical array is also 16 mm.

Fig. 18a and 18b are also referred to, in which fig. 18a is a PDOA simulation graph of horizontal angle measurement and vertical angle measurement of the antenna array shown in fig. 17a and 17b in the CH5 frequency band. Fig. 18b is a PDOA simulation graph of horizontal angle measurement and vertical angle measurement of the antenna array shown in fig. 17a and 17b at CH9 frequency band.

As can be seen from the PDOA simulation curves shown in fig. 18a and 18b, the PDOA curve of the antenna array based on the UWB patch antenna 221 is monotonous, which indicates that a better angle measurement function can be achieved by using the UWB patch antenna 221 to perform the array.

Next, a specific simulation is performed on a layout structure of the three

UWB patch antennas

221a, 221b and 221c included in the UWB antenna module 22 shown in fig. 5b on the decoration 41.

Please refer to fig. 19a, which is a simulation graph of the S-parameters of a layout structure of the UWB antenna module 22 on the decoration 41 shown in fig. 5 b. As can be seen from fig. 19a, the central frequency points (resonant frequencies) of the three

UWB patch antennas

221a, 221b, and 221c of the UWB antenna module 22 are substantially all around 6.5GHz and 8GHz, and can satisfy the basic requirement of dual-frequency resonance of the UWB patch antenna 221.

Please refer to fig. 19b, which is a graph illustrating simulation results of efficiency of a layout structure of the UWB antenna module 22 on the decoration 41 shown in fig. 5 b. As can be seen from fig. 19b, the three

UWB patch antennas

221a, 221b, 221c of the UWB antenna module 22 have an efficiency of about-5 dB at 6.5GHz and an efficiency of about-3 dB at 8 GHz. It can be seen that each of the

UWB patch antennas

221a, 221b, and 221c can satisfy the design requirement of miniaturization while maintaining good radiation performance.

Referring to fig. 20a and 20b together, wherein fig. 20a is a gain pattern of the UWB antenna module 22 on the decoration 41 shown in fig. 5b when a layout structure operates at a frequency of 6.5GHZ, and fig. 20b is a gain pattern of the UWB antenna module 22 on the decoration 41 shown in fig. 5b when a layout structure operates at a frequency of 8 GHZ. Here, ANT1, ANT2, and ANT3 shown in fig. 20a and 20b represent the

UWB patch antennas

221a, 221b, and 221c shown in fig. 5b, respectively.

As can be seen from fig. 20a and 20b, the gain patterns of the three

UWB patch antennas

221a, 221b, 221c of the UWB antenna module 22 have no null point in the upper half space and are relatively smooth, and meet the design requirements of the UWB antennas.

Next, the influence of the UWB patch antenna 221 overlaid on the second avoidance hole 412 of the NFC antenna 21 on the performance of the NFC antenna 21 is analyzed.

Please refer to fig. 21a, which is a schematic diagram of an antenna architecture of three experiments set up for analyzing the influence of the UWB patch antenna 221 on the performance of the NFC antenna 21. The antenna framework of the first set of experiments is in an initial state, that is, an NFC avoidance hole is formed in the decoration 41 corresponding to the NFC antenna 21, and the NFC avoidance hole is not shielded by the UWB patch antenna; the antenna architecture of the second group of experiments is that a UWB patch antenna 221 is added on an NFC avoidance hole to block the NFC avoidance hole, and holes are formed in the middle of a radiator of the UWB patch antenna 221 and the middle of a floor; the antenna framework of the third group's experiment shelters from the NFC and dodges the hole for adding UWB patch antenna on the NFC dodges the hole, and UWB patch antenna's floor does not carry out the trompil, and wherein, the size of the UWB patch antenna of third group is the same with the size of the UWB patch antenna of second group, but the third group UWB patch antenna place region has all sheltered from NFC and has dodged the hole.

Please refer to fig. 21b, which is a simulation diagram of the magnetic field radiation intensity of the NFC antenna in the antenna architecture of the three experimental groups shown in fig. 21 a. As can be seen from fig. 21b, the UWB patch antenna having the radiator and the floor both opened on the NFC avoidance hole shields the NFC avoidance hole, the magnetic field coverage area of the NFC antenna does not change significantly, and when the UWB patch antenna having the radiator opened on the NFC avoidance hole but the floor not opened shields the NFC avoidance hole, the magnetic field coverage area is significantly reduced.

Fig. 21c is an experimental data table of the magnetic flux of a V card (e.g., a test card with NFC communication function) communicating with an NFC antenna in the antenna architecture of the three sets of experiments shown in fig. 21 a. Comparing the three sets of experimental data shown in fig. 21c, it can be known that, at the position where the communication distance is 1mm, after the NFC avoidance hole is shielded by adding the UWB patch antenna in which both the radiator and the floor are provided with holes, the magnetic flux at the position is not reduced; and after the NFC dodging hole is shielded by adding the UWB patch antenna with the radiator provided with the hole but without the hole on the floor, the magnetic flux at the position is deteriorated by 33%.

At the position with the communication distance of 10mm, after the UWB patch antenna with the radiator and the floor both provided with holes is added on the NFC avoidance hole to shield the NFC avoidance hole, the magnetic flux at the position changes, but the change is not obvious; and after the NFC dodging hole is shielded by adding the UWB patch antenna with the radiator provided with the hole but without the hole on the floor, the magnetic flux at the position is deteriorated by 25%.

Therefore, the influence of floor hole opening on the performance of the NFC antenna is small when the UWB patch antenna is used, and the influence of the performance of the NFC antenna is obvious when the UWB patch antenna is not used for floor hole opening.

To sum up, the housing assembly 12 that this application provided utilizes metal decoration 41 to come UWB antenna module 22 and other electronic components, for example multimedia device 34, NFC antenna 21 etc. are integrated together, can the rational utilization space to can improve electronic equipment's space utilization. Moreover, under the framework, the thickness of the shell component is not increased by the superposition of the UWB antenna module 22, the original framework of the multimedia device 34 and the NFC antenna 21 and the like is not changed, and the antenna performance of the NFC antenna 21 and the normal operation of the multimedia device 34 are not affected, so that the UWB antenna module 22 and the multimedia device 34 and the NFC antenna 21 and the like in the existing framework can be better integrated and coexist, and the electronic device 100 is favorably designed to be light and thin. And the UWB antenna module 22 disposed on the decoration 41 can also satisfy the miniaturized design requirement while enhancing the antenna performance, maintaining good radiation efficiency, so that a better angle measurement function can be realized.

In addition, for the structure of the housing component 12 provided by the present application, the NFC coil 211 and the UWB antenna module 22 can be manufactured together by effectively using the same process at the production end, so that the UWB antenna module 22 and the NFC antenna 21 can be processed and produced as one component, which can laterally reduce the supply chain for the production and manufacturing of a factory; the space utilization of the electronic device 100 can be effectively improved at the design end.

The above embodiments are only a part of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and all should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An antenna structure is applied to electronic equipment, the electronic equipment further comprises a metal decorating part, and a plurality of avoiding holes are formed in the decorating part;

the antenna structure is characterized by comprising a plurality of UWB patch antennas, wherein each UWB patch antenna comprises a radiator, a medium substrate and a floor which are sequentially stacked, a first through hole is formed in the middle of each radiator along the thickness direction of the radiator, and a second through hole which is opposite to the first through hole and has the same shape with the first through hole is formed in the floor along the thickness direction of the floor;

a plurality of UWB patch antenna set up in on the decoration, wherein, a plurality of UWB patch antenna includes a UWB patch antenna, a UWB patch antenna is in position on the decoration sets up to:

and the first through hole and the second through hole which are formed in the first UWB patch antenna are opposite to the avoiding hole.

2. The antenna structure of claim 1, wherein the decoration is a decoration of a multimedia device, the decoration covering the multimedia device, the plurality of relief holes including a plurality of first relief holes corresponding to a plurality of multimedia devices.

3. The antenna structure according to claim 2, wherein the first avoiding hole is for exposing the multimedia device;

first UWB patch antenna includes a UWB patch antenna unit, a UWB patch antenna unit's medium base plate along its thickness direction seted up with first through-hole on a radiator of a UWB patch antenna unit just to just and the same third through-hole of shape, a UWB patch antenna unit is in position on the decoration sets up to:

the first through hole, the second through hole and the third through hole that set up on the first UWB patch antenna element are all just right the first hole of dodging, just the open region in the first hole of dodging can be followed expose completely in first through hole, second through hole and the third through hole.

4. The antenna structure according to claim 2 or 3, characterized in that the antenna structure further comprises an NFC antenna comprising an NFC coil, wherein the trim piece is located between the NFC coil and the UWB patch antenna.

5. The antenna structure according to claim 4, characterized in that an orthographic projection of the NFC coil on the plane of the trim piece is at least partially located on the trim piece, and the orthographic projection of the NFC coil on the trim piece is staggered with respect to the position of the first avoidance hole;

the plurality of avoiding holes further comprise a plurality of second avoiding holes for exposing the NFC coil;

first UWB patch antenna includes second UWB patch antenna element, second UWB patch antenna element is in position on the decoration sets up to:

and the first through hole and the second through hole which are formed in the second UWB patch antenna unit are opposite to the second avoiding hole.

6. The antenna structure of claim 1, wherein the UWB patch antenna is disposed on an exterior surface of the trim piece.

7. The antenna structure of claim 1, wherein the trim piece has a recess defined in an outer surface thereof, the UWB patch antenna being disposed in the recess.

8. The antenna structure of claim 7, wherein the UWB patch antenna has a thickness less than a thickness of the trim piece;

the thickness of the UWB patch antenna is smaller than or equal to the depth of the groove.

9. An antenna structure according to claim 1, wherein the antenna structure comprises at least three UWB patch antennas, the three UWB patch antennas being spaced apart in a triangular shape on the trim piece.

10. The antenna structure of claim 1, wherein the shape of the first via comprises a circle, a "+" shape, or a polygon.

11. The antenna structure of claim 1, wherein the plurality of UWB patch antennas further comprises a second UWB patch antenna positioned on the trim piece such that:

the position of the second UWB patch antenna is staggered with the avoiding hole.

12. A housing assembly for an electronic device, comprising:

the rear cover is provided with a mounting through hole;

the metal decorating part is fixed in the mounting through hole of the rear cover, and a plurality of avoiding holes are formed in the decorating part; and

an antenna structure as claimed in any one of claims 1 to 11, comprising a plurality of UWB patch antennas disposed on the trim member.

13. The housing assembly of claim 12 wherein the decorative piece is a multimedia device decorative piece, the decorative piece overlying the multimedia device.

14. The housing assembly of claim 12 further comprising a light transmissive lens covering and secured to an exterior side of the trim piece.

15. An electronic device, comprising:

a multimedia device; and

a housing assembly as claimed in any one of claims 12 to 14.