CN111180864A

CN111180864A - Antenna assembly for wearable equipment and wearable equipment

Info

Publication number: CN111180864A
Application number: CN202010071901.5A
Authority: CN
Inventors: 常城
Original assignee: Shenzhen Xin Kingbrand Technology Development Co ltd
Current assignee: Shenzhen Xin Kingbrand Technology Development Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-05-19

Abstract

The invention relates to the technical field of antenna equipment, in particular to an antenna assembly for wearable equipment and the wearable equipment. The wearable device comprises a shell and a PCB arranged in the shell, the antenna assembly comprises a main communication antenna, a secondary communication antenna and a GPS/WIFI/BT antenna, the main communication antenna is arranged on one side of the shell of the wearable device, and the main communication antenna and the GPS/WIFI/BT antenna are distributed on the other side of the shell, so that the effective space of the wearable device is fully utilized; in addition, be equipped with the interconnecting link between communication auxiliary antenna and GPS/WIFI/BT antenna and link it as an organic whole, communication auxiliary antenna and GPS/WIFI/BT antenna are connected through extra earth point in the middle of two antennas and PCB ground when as antenna radiator simultaneously, the partly whole outside extension of holistic PCB ground, provide the resonating arm that more is close to its 1/4 wavelength with PCB together for communication main antenna, obtain a good resonance effect for guaranteeing communication main antenna, thereby effectively promote the bandwidth and the efficiency of communication main antenna, provide better communication experience of performance for wearable equipment.

Description

Antenna assembly for wearable equipment and wearable equipment

Technical Field

The invention relates to the technical field of antenna equipment, in particular to an antenna assembly for wearable equipment and the wearable equipment.

Background

With the rapid development of communication and internet of things technologies, more types of products are emerging in recent years, wherein wearable equipment is a larger type; a wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. Wearable equipment is not only a hardware equipment, more through software support and data interaction, the high in the clouds is mutual to be realized powerful function, therefore its good communication function can greatly promote wearable equipment's experience, and wearable equipment is because the requirement to the portability degree is very high, consequently, the equipment size is less, and in present wearable field, the function is more and more taken into to the equipment end, consequently, the appearance and the inner space of its restriction bring very big troubles for antenna design, because the organism is generally smaller, the design space of antenna is not enough, and the organism can't satisfy the required size of low frequency, the antenna is difficult to gain relatively better performance, antenna performance promotes to become one of the key problem that wearable equipment needs to solve.

Disclosure of Invention

The invention provides an antenna assembly for wearable equipment, and aims to design a combined antenna with relatively good performance in a limited space of electronic equipment like the wearable equipment so as to meet the communication requirement of intelligent wearable equipment.

An antenna assembly for a wearable device, the wearable device comprising a housing and a PCB board disposed within the housing, the antenna assembly comprising at least one antenna, the antenna comprising a feed circuit and an antenna radiator electrically connected to the feed circuit, the feed circuit being disposed on the PCB board, the antenna radiator being disposed on a surface of the housing;

the antenna assembly comprises a main communication antenna, a secondary communication antenna and a GPS/WIFI/BT antenna, antenna radiators of the main communication antenna, the secondary communication antenna and the GPS/WIFI/BT antenna are arranged on the surface of the shell, and corresponding feed circuits of the antenna radiators are arranged on the PCB;

the antenna radiation body of the communication auxiliary antenna and the antenna radiation body of the GPS/WIFI/BT antenna are electrically connected into a whole through the connecting line, the connecting line is an LDS line, and the connecting line is also provided with at least one grounding point which is also connected with the resonance ground of the PCB so as to enlarge the resonance ground of the PCB.

The antenna radiators of the main communication antenna, the auxiliary communication antenna and the GPS/WIFI/BT antenna are respectively provided with at least one feed point and at least one feed point, and the antenna radiators of the main communication antenna, the auxiliary communication antenna and the GPS/WIFI/BT antenna are electrically connected with corresponding feed circuits on the PCB board through the feed points;

and the antenna radiators of the communication main antenna, the communication auxiliary antenna and the GPS/WIFI/BT antenna are electrically connected with the resonance electricity on the PCB through the feed point.

Wherein the shell is annular;

the antenna radiator of the main communication antenna is arranged on the surface of the side wall in front of the shell, and the antenna radiator of the auxiliary communication antenna and the antenna radiator of the GPS/WIFI/BT antenna are arranged on the surface of the side wall behind the shell.

The antenna radiator of the communication auxiliary antenna is provided with a first feed point and a first feed point, the antenna radiator of the GPS/WIFI/BT antenna is provided with a second feed point and a second feed point, the connecting line is also provided with at least one feed point, the first feed point and the second feed point are close to the feed points on the connecting line and are respectively positioned on two sides of the feed points, the first feed point is positioned on the right side of the first feed point, and the second feed point is positioned on the left side of the second feed point;

the first feed point, the second feed point and the feed point on the connecting line are connected with the PCB in a resonant mode.

The antenna radiator of the main communication antenna comprises a low-frequency radiation branch, a medium-frequency radiation branch and a high-frequency radiation branch.

The antenna radiator is arranged on the surface of the shell through laser etching and chemical plating.

The casing is rectangular annular, four corners of the casing are arc-surface-shaped, an antenna radiator of the main communication antenna is arranged on the surface of the side wall in front of the casing and extends to the left side and the right side of the casing, and antenna radiators of the auxiliary communication antenna and the GPS/WIFI/BT antenna are arranged on the surface of the side wall behind the casing and also extend to the surfaces of the left side wall and the right side wall of the casing.

A wearable device comprising an antenna assembly as described above.

According to the antenna assembly for the wearable device of the embodiment, the wearable device comprises a shell and a PCB board arranged in the shell, the antenna assembly comprises a feed circuit and an antenna radiating body electrically connected with the feed circuit, the feed circuit is arranged on the PCB board, and the antenna radiating body is arranged on the surface of the shell, so that the space of the side face of the shell can be fully utilized, the length of the antenna radiating body is prolonged, the antenna performance is improved, the antenna distribution of multiple frequency bands and multiple communication modes is realized in the narrow space of the wearable device, and the requirements of the wearable device are met. More importantly, because the body is smaller, the other radiation arm of the PCB as the main antenna does not meet 1/4 wavelength of the required frequency band, which generally causes poor low-frequency communication effect of the main antenna; in the application, a plurality of antennas are arranged on the side surface of a wearable device shell in an LDS mode, wherein a main communication Antenna is arranged on one side of the wearable device shell, and Aux Antenna and GPS/WIFI/BT Antenna are distributed on the other side of the shell, so that the effective space of the wearable device is fully utilized; the Aux Antenna and the GPS/WIFI/BT Antenna which are applied simultaneously are used as Antenna radiators and are connected with a PCB ground through an extra grounding point between the two antennas, the whole PCB ground is extended outwards, and the Aux Antenna and the GPS/WIFI/BT Antenna together provide a resonance arm which is closer to the 1/4 wavelength of the Main Antenna (a communication Main Antenna) for the Main Antenna, so that a good resonance effect is obtained for ensuring the Main Antenna, the bandwidth and the efficiency of the Main Antenna are effectively improved, and better communication experience is provided for wearable equipment.

Drawings

Fig. 1 is a schematic view of an antenna assembly according to an embodiment of the present application from one perspective;

fig. 2 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application from another viewing angle.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning.

In the embodiment of the invention, the antenna assembly for the wearable device is provided, and can meet the communication of 4G standard or 5G standard, can meet the short-distance communication such as Bluetooth communication and WIFI communication, and can meet the GPS positioning requirement. In order to set up more antenna in the narrow and small space in wearable equipment, in this application, set up antenna radiator at wearable equipment's casing surface, during concrete feeder circuit etc. set up the PCB board in the casing, in order to realize arranging multiple antenna in wearable equipment like this, satisfy wearable equipment's communication and location demand.

The wearable device is small in size, and generally wearable equipment in the existing equipment needs to bear mobile communication, and in the wearable equipment, because the body is small, the PCB is used as another radiation arm of the communication Main Antenna, and if the body does not meet 1/4 wavelength of a required frequency band, the low-frequency communication effect of the Antenna is poor generally; in the application, a plurality of antennas are arranged on the surface of a wearable device shell in an LDS mode, wherein Main Antenna is arranged on one side of the wearable device shell, and Aux Antenna and GPS/WIFI/BT Antenna are distributed on the other side of the wearable device shell, so that the effective space of the wearable device is fully utilized; meanwhile, Aux Antenna and GPS/WIFI/BT Antenna in the application are used as Antenna radiators, and the integral resonance part of the PCB is integrally extended outwards through an extra Ground point (also called group) between two antennas and the resonance Ground in the PCB, so that a resonance arm with a wavelength closer to 1/4 is provided for Main Antenna together with the PCB, a good resonance effect is obtained for Main Antenna, and meanwhile, as the integral resonance part of the PCB is extended outwards, a proper dividing line can be made to improve the isolation between Aux Antenna and GPS/WIFI/BTANdenna; the application provides an antenna module for wearable equipment realizes many antennas distribution in less space to can obtain better communication effect, greatly promote mobile terminal's user experience.

The antenna assembly comprises a plurality of different types of antennas, such as a communication main antenna and a communication auxiliary antenna for 4G or 5G communication, and a GPS/WIFI/BT antenna for positioning and near field communication, wherein each antenna comprises an antenna radiator and a feed circuit, the antenna radiator and the feed circuit are electrically connected, and the feed circuit is mainly used for receiving and transmitting electric signals of the antenna radiator.

The first embodiment is as follows:

referring to fig. 1, the present embodiment provides an antenna assembly for a wearable device, where the wearable device includes a housing, and the PCB board is disposed in the housing, the antenna assembly includes a feeding circuit and an antenna radiator electrically connected to the feeding circuit, the feeding circuit is disposed on the PCB board, and the antenna radiator is disposed on a surface of the housing, so as to fully utilize an effective radiation space and a surface area of the housing of the wearable device to arrange an antenna, and implement multi-band and multi-communication-mode antenna distribution in a smaller space, so as to meet a requirement of a high-performance multi-mode antenna.

The Antenna assembly of the present embodiment includes a Main communication Antenna 3(Main Antenna), a sub communication Antenna 42 (auxontenna), and a GPS/WIFI/BT Antenna 41, wherein Antenna radiators of the Main communication Antenna 3, the sub communication Antenna 42, and the GPS/WIFI/BT Antenna 41 are all disposed on the surface of the housing, and corresponding feeding circuits thereof are disposed on the PCB board 2. A feed point and a feed point are respectively arranged on the communication main antenna 3, the communication auxiliary antenna 42 and the GPS/WIFI/BT antenna 41, and the communication main antenna 3, the communication auxiliary antenna 42 and the GPS/WIFI/BT antenna 41 are electrically connected with corresponding feed circuits on the PCB 2 through the feed points for signal transmission; the communication main antenna 3, the communication sub antenna 42 and the GPS/WIFI/BT antenna 41 are electrically connected to the resonance on the PCB board through the ground feed point.

Wearable equipment is less because its portable characteristic, general size to equipment function requires more and more, will require to realize more multi-functionally in less space, and organism inner space is comparatively more compel relatively, hardly reserves reasonable wiring space for the antenna module, and casing 1 is cyclic annular in this embodiment, and PCB board 2 sets up in the inside of the lower extreme of casing, and PCB board 2 is connected with the inner wall of casing all around. Taking the perspective of fig. 1 as an example, the antenna radiator of the main communication antenna 3 is disposed on the surface in front of the housing 1, and the antenna radiators of the sub communication antenna 42 and the GPS/WIFI/BT antenna 41 are disposed on the surface in back of the housing 1. The front and the rear are relatively, and in actual design, the main communication antenna 3 and the auxiliary communication antenna 42 and the GPS/WIFI/BT antenna 41 are respectively located on one surface of the casing opposite to each other or two surfaces relatively far away from each other as far as possible, so that the isolation between the main communication antenna 3 and the auxiliary communication antenna 42 and the GPS/WIFI/BT antenna 41 is improved, and mutual interference between the antennas is reduced.

And the general size of the PCB 2 is smaller, it can't meet the requirement of the communication main antenna 3 for the 1/4 wavelength of the resonating arm at the low frequency band, in this embodiment, a connection line 43 is arranged on the surface between the communication sub antenna 42 and the GPS/WIFI/BT antenna 41 on the housing 1, the antenna radiator of the communication sub antenna 42 and the GPS/WIFI/BT antenna 41 are electrically connected into a whole through the connection line 43, the connection line is an LDS line, at least one grounding point is also arranged on the connection line 43, and the grounding point is also connected with the resonating ground of the PCB 1, so as to effectively extend the resonating ground (also called PCB ground or common ground) of the PCB, and the resonating ground provides a more reasonable resonating arm for the communication main antenna 3, thereby providing effective guarantee for the better performance of the communication main antenna 3. This embodiment is through LDS radium carving the mode of plating the Antenna distribution at casing side make full use of side space, effectually distribute many antennas around the organism rationally to the PCB board length of the effectual extension of ground part that increases in the middle of utilizing Aux Antenna and GPS WIFI/BT Antenna, for Main Antenna provides a better resonance arm (ground), thereby effectively promote Main Antenna's bandwidth and efficiency, provide the better communication experience of performance for wearable equipment.

Specifically, as shown in fig. 2, a first feeding point 422 and a first feeding point 421 are provided on the communication sub-antenna 42, a second feeding point 411 and a second feeding point 412 are provided on the GPS/WIFI/BT antenna 41, two feeding points, namely a third feeding point 431 and a fourth feeding point 432, are also provided on the connection line 43, the first feeding point 421 and the second feeding point 412 are close to and located on both sides of the third feeding point 431 and the fourth feeding point 432 on the connection line 43, respectively, the first feeding point 422 is located on the right side of the first feeding point 421, and the second feeding point 411 is located on the left side of the second feeding point 412. The first feed point 421, the second feed point 412, the third feed point 431 and the fourth feed point 432 are connected with the PCB 2 in a resonant mode, so that the communication auxiliary antenna 42, the GPS/WIFI/BT antenna 41 and the connecting line 43 are integrally connected, the resonant mode of the PCB is greatly extended, a reasonable resonant arm (close to a resonant arm with 1/4 wavelength) is provided for the communication main antenna 3, the bandwidth and the efficiency of the communication main antenna 3 are effectively improved, and the communication performance of the communication main antenna 3 is improved. Meanwhile, after the PCB 2 is extended in resonance, it can be separated by a suitable line to improve the isolation between the communication sub-antenna 42 and the GPS/WIFI/BT antenna 41, reduce the mutual interference between the antennas, and improve the performance of the communication sub-antenna 42 and the GPS/WIFI/BT antenna 41.

In the present embodiment, the communication main antenna 3 is provided with a third feeding point 31, a fifth feeding point 32 and a sixth feeding point 33, the third feeding point 431 is connected to a corresponding feeding circuit on the PCB 2, and the fifth feeding point 32 and the sixth feeding point 33 are connected to the PCB 2 in a resonant manner.

The antenna radiator of the main communication antenna 3 includes a low-frequency radiation branch, an intermediate-frequency radiation branch and a high-frequency radiation branch, and covers frequencies from 800-960MHz and 1710-2690MHz, which can basically meet the coverage of 4G and 5G common frequency bands.

This application antenna module casing adopts LDS material injection moulding, and the irradiator of antenna adopts radium carving and the shaping that the mode realized the irradiator circuit of chemical plating, and the mode setting that adopts radium carving chemical plating to antenna irradiator part is on the table of casing, and the maximum space of make full use of wearable equipment distributes the antenna, realizes the multifrequency section under less space, the antenna distribution of many communication systems.

Specifically, the housing 1 of the present embodiment is a rectangular ring, and four corners of the housing are arc-surface-shaped, so that corners of a product are more rounded and beautiful, the antenna radiator of the main communication antenna 3 is disposed on the surface in front of the housing 1 and extends to the left and right surfaces of the housing 1, the antenna radiators of the auxiliary communication antenna 42 and the GPS/WIFI/BT antenna 41 are disposed on the surface behind the housing 1 and also extend to the left and right surfaces of the housing 1, so that the maximum space of the wearable device is fully utilized to distribute the antennas, and multi-band and multi-communication-system antenna distribution is realized in a smaller space.

The antenna assembly for the wearable device provided by the embodiment has the following beneficial technical effects:

the Antenna assembly of this embodiment distributes the Antenna in 1 side make full use of side space of casing through the mode that LDS radium carving plated, effectual many antennas rational distribution around the organism, and utilize the resonant ground length of the effectual extension of the connecting Antenna 43 that increases in the middle of Aux Antenna and GPS WIFI/BTANTENna, provide a better resonance arm for Main Antenna, thereby effectively promote Main Antenna's bandwidth and efficiency, provide the better communication experience of performance for wearable equipment.

Example two:

the utility model provides a be used for wearable equipment, this wearable equipment includes as embodiment 1 provides the antenna module, and this antenna module can provide good communication performance, like the communication of 4G standard or 5G standard, can satisfy near field communication simultaneously, for example bluetooth communication and WIFI communication, can also satisfy GPS location demand to satisfy current intelligent wearing equipment's demand.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. An antenna assembly for a wearable device, the wearable device comprising a housing and a PCB board disposed within the housing, wherein the antenna assembly comprises at least one antenna, the antenna comprising a feed circuit and an antenna radiator electrically connected to the feed circuit, the feed circuit being disposed on the PCB board, the antenna radiator being disposed on a surface of the housing;

2. The antenna assembly of claim 1, wherein the antenna radiators of the main communication antenna, the sub communication antenna and the GPS/WIFI/BT antenna are respectively provided with at least one feeding point and at least one feeding point, and the antenna radiators of the main communication antenna, the sub communication antenna and the GPS/WIFI/BT antenna are electrically connected with corresponding feeding circuits on the PCB board through the feeding points;

3. The antenna assembly of claim 1, wherein the housing is annular;

4. An antenna assembly according to claim 2, wherein the antenna radiator of the communication sub-antenna is provided with a first feed point and a first feed point, the antenna radiator of the GPS/WIFI/BT antenna is provided with a second feed point and a second feed point, and the connection line is also provided with at least one feed point, the first feed point and the second feed point being located close to and on either side of the feed point on the connection line, respectively, the first feed point being located on the right side of the first feed point, and the second feed point being located on the left side of the second feed point;

5. The antenna assembly of claim 1, wherein the antenna radiator of the main communication antenna includes a low frequency radiating branch, an intermediate frequency radiating branch, and a high frequency radiating branch.

6. An antenna assembly according to claim 1, characterized in that the antenna radiator is arranged on the surface of the housing by means of laser engraving and electroless plating.

7. The antenna assembly of claim 4, wherein the case has a rectangular ring shape with four corners having an arc shape, the antenna radiator of the main communication antenna is disposed on the surface of the front side wall of the case and extends to the left and right surfaces of the case, and the antenna radiators of the sub communication antenna and the GPS/WIFI/BT antenna are disposed on the surface of the rear side wall of the case and also extend to the left and right surfaces of the case.

8. A wearable device, characterized by comprising an antenna assembly according to any of claims 1-9.