CN215418598U - Antenna and electronic device with metal component - Google Patents
Antenna and electronic device with metal component Download PDFInfo
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- CN215418598U CN215418598U CN202121713032.8U CN202121713032U CN215418598U CN 215418598 U CN215418598 U CN 215418598U CN 202121713032 U CN202121713032 U CN 202121713032U CN 215418598 U CN215418598 U CN 215418598U
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Abstract
The utility model discloses an antenna and an electronic device with a metal component, wherein the antenna comprises: a ground part; and one end of the conductive connecting piece is connected with the grounding part, the other end of the conductive connecting piece is used for being connected with a metal component in the electronic device, and the conductive connecting piece is configured to equivalently enlarge the area of the grounding part. The technical scheme of the utility model can equivalently enlarge the area of the grounding part and improve the performance of the antenna when the antenna works in a low frequency band.
Description
Technical Field
The present invention relates to the field of communication antenna design technologies, and in particular, to an antenna and an electronic device with a metal component.
Background
With the rapid development of communication technology and the popularization of intelligent terminals and intelligent household appliances, the miniaturization and light weight of antennas are inevitable trends. However, in order to reduce the size and weight of the antenna as much as possible, the area of the ground portion in the conventional antenna is usually designed to be small, so that the performance of the antenna is poor when the antenna operates in a low frequency band, and the requirement of practical use cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an antenna, and aims to solve the problem that the area of a grounding part in the conventional antenna is small.
In order to achieve the above object, the present invention provides an antenna for use in an electronic device with a metal component, comprising:
a ground portion disposed on the substrate; and the number of the first and second groups,
one end of the conductive connecting piece is connected with the grounding part, the other end of the conductive connecting piece is used for being connected with a metal component in the electronic device, and the conductive connecting piece is configured to equivalently enlarge the area of the grounding part.
Optionally, the antenna further comprises:
a radiating portion connected with the ground portion.
Optionally, the antenna further comprises:
the grounding part and the radiation part are arranged on the substrate;
the radiation part is arranged on one side surface of the substrate with the grounding part;
or the radiation part is arranged on one side surface of the substrate back to the grounding part.
Optionally, the antenna further comprises:
a feeding point set including a first feeding point and a second feeding point, wherein the first feeding point is arranged on the radiating portion, and the second feeding point is arranged on the grounding portion; the feeding point is arranged on the radiating part in a gathering manner; and the number of the first and second groups,
and a first end of the feeder line is connected with the feeding point in a centralized manner, the other end of the feeder line is used for connecting the electronic device, and the feeder line is used for realizing communication connection between the antenna and the electronic device.
The present invention also provides an electronic device with a metal component, comprising:
a metal component; and the number of the first and second groups,
as the antenna described above, the metal member is connected to the antenna.
Optionally, the metal component is one or more of a metal shielding plate, a metal heat dissipation plate and a metal housing.
Optionally, the electronic device with the metal component further includes a main control board, and the main control board is electrically connected to the antenna.
The antenna adopts the substrate, the grounding part and the conductive connecting piece, and the grounding part is arranged on the substrate, and one end of the conductive connecting piece is connected with the grounding part, and the other end of the conductive connecting piece is used for being connected with a metal component in the electronic device. The technical scheme of the utility model can equivalently enlarge the area of the grounding part, thereby improving the performance of the antenna when the antenna works in a low frequency band.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an antenna according to an embodiment of the present invention;
fig. 2 is a connection structure diagram of the antenna and the electronic device with metal components in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
415 | The third bending |
| 20 | |
42 | |
| 30 | Conductive connecting |
421 | Second |
| 40 | |
422 | The fourth bend part |
| 41 | A |
423 | |
| 411 | First |
50 | |
| 412 | First pair of |
60 | Feed line |
| 413 | A first bending |
70 | |
| 414 | The |
80 | Main control board |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an antenna.
Modern electronic devices typically employ wireless communication techniques for wireless transmission of data, voice, images, and the like. An antenna, as a component for sensing electromagnetic waves, functions as an essential device for wireless communication technology equipment. In the design of the antenna, the size of the grounding part in the antenna directly influences the resonance performance of the antenna, and particularly for a low-frequency antenna, the influence on the low-frequency resonance capability of the antenna is more obvious. However, in order to pursue miniaturization of the whole product, the conventional electronic device requires that the space occupied by the antenna is as small as possible and the volume is as small as possible, so that the area of the grounding portion in the conventional antenna is often insufficient, and the performance of the antenna cannot be expected, and the actual use requirement cannot be met.
To solve the above problem, referring to fig. 1 to 2, in an embodiment of the present invention, the antenna includes:
the ground portion 20, and,
and a conductive connection member 30, one end of the conductive connection member 30 being connected to the ground portion 20, the other end of the conductive connection member 30 being used for connecting to a metal component 70 in an electronic device, the conductive connection member 30 being configured to equivalently enlarge an area of the ground portion 20.
In this embodiment, the grounding portion 20 may be made of conductive metal and may be disposed in the electronic device by way of metal plate, plastic plating, printing conductive material, or PCB printing. The grounding portion 20 is used to provide grounding for the antenna to realize the electromagnetic wave transceiving function of the antenna, and can be regarded as the spreading of the two arms when the antenna oscillates. It will be appreciated that the area of the ground 20 is generally determined by the actual required ground impedance of the antenna, but the area of the ground 20 in the existing antenna is relatively small for its low frequency operation, which greatly affects the performance of the antenna when operating in the low frequency band. The shape of the grounding portion 20 and the gap between the grounding portion and other metal conductive components of the antenna can be designed by those skilled in the art to control the overall impedance of the antenna, and the overall impedance of the antenna can be matched with the working frequency band thereof to reduce the electromagnetic wave reflection during the operation of the antenna and the return loss of the overall structure, thereby being beneficial to improving the standing-wave ratio performance.
The conductive connecting member 30 may also be made of conductive metal, and the form thereof may be plate-like, sheet-like, or foil-like, and is not limited herein; the conductive metal material can be copper or silver. Both ends of the conductive connecting member 30 can be respectively connected with the grounding portion 20 and the metal component 70 in the electronic device, so that when the antenna works, the current induced on the grounding portion 20 can be transmitted to the metal component 70 of the electronic device through the conductive connecting member 30, thereby providing a larger grounding loop for the antenna. It can be understood that one or more combinations of metal components 70 such as a metal heat sink, a metal shielding plate, a grounding copper-clad or a metal housing are usually disposed in the electronic device, and these metal components 70 usually play a role in heat dissipation, electromagnetic shielding, providing ground voltage, protection, and other non-electrical signal transmission, and the technical solution of the present invention connects such metal components 70 with the ground 20, so that such metal components 70 can additionally serve as an extension plate of the ground 20 on the premise of maintaining the original role, so as to extend the actual ground area of the antenna to the sum of the areas of the ground 20, the metal components 70 and the conductive connection 30. Certainly, in another alternative embodiment, the conductive connecting member 30 can also be implemented by using a flexible circuit board, and in order to facilitate installation and subsequent repair and replacement, pins may be disposed on both ends of the conductive connecting member 30, slots may be disposed on the metal component 70 and the grounding portion 20 in the electronic device, and the conductive connecting member 30 is respectively detachably and electrically connected to the two.
Referring to fig. 1 to 2, in an embodiment of the present invention, the antenna further includes:
a radiation part 40 connected to the ground part 20.
Optionally, the antenna further comprises:
a substrate 10, wherein the grounding part 20 and the radiation part 40 are arranged on the substrate 10;
the radiation part 40 is provided on one side surface of the substrate 10 having the ground part 20;
alternatively, the radiation portion 40 is provided on a side surface of the substrate 10 facing away from the ground portion 20.
In this embodiment, the radiation portion 40 may be made of metal, usually copper, to radiate or receive electromagnetic wave signals. The radiating portion 40 may be a copper sheet, or may also be a copper foil attached to a PCB; when the radiation portion 40 is a copper sheet, it can be disposed on one side surface of the substrate 10 having the grounding portion 20 by means of adhesive or screw locking, and connected with the grounding portion 20 to form a grounding loop, but it is difficult to ensure the consistency of production indexes. In order to avoid the above problem, the radiation portion 40 is preferably a copper foil attached to a PCB, which is advantageous for improving the consistency of production indexes because the processing precision of the PCB pattern is high. In another embodiment, the radiation portion 40 may also be a three-dimensional structure separately disposed from the substrate 10, and in practical applications, the radiation portion 40 and the ground portion 20 may be connected in two ways, one is directly electrically connected, and the other is in a non-contact coupling connection, so as to block a direct current component, which is beneficial to improving an alternating current response performance.
The substrate 10 serves to provide support for the radiation part 40 and the ground part 20. The substrate 10 may be a plastic substrate or a dielectric substrate, and is preferably a PCB made of a dielectric non-conductive material, and the dielectric constant of the substrate may be selected from other suitable values according to actual needs, for example, 4.4, which is not limited herein, and the description is given by taking the substrate 10 as the PCB. Various metal conductive components may be printed, adhered, or soldered on the substrate 10 to form various functional portions for implementing the transmission function of the antenna, and thus the volume of the substrate 10 may be approximately equal to the entire volume of the antenna. The substrate 10 is generally disposed in a nearly rectangular or disk shape, or may be disposed in an irregular pattern, which is not limited herein. The radiation portion 40 may be disposed on the same side as the ground portion 20 or on the opposite side. When the antenna is arranged on the opposite side, the radiation portion 40 and the grounding portion 20 can be communicated by arranging the corresponding communicating metal layer on the substrate 10, and it can be understood that the antenna is designed in a double-panel manner, so that the area and the volume of the grounding portion 20 arranged on the same side surface can be saved, and the miniaturization and the light weight of the antenna are facilitated.
In the embodiment shown in fig. 1, the radiation portion 40 includes a first radiation portion 41 and a second radiation portion 42; the first radiation part 41 is connected with the grounding part 20, and the second radiation part 42 is respectively arranged separately from the first radiation part 41 and the grounding part 20, but is not directly connected with the two; the grounding portion 20 is in a long strip shape and has a plurality of rectangular extension portions extending toward the first and second radiation portions 42. In the above embodiment, the first radiation section 41 includes the first main patch 411, the first sub-patch 412, and three meandering sections (the first meandering section 413, the second meandering section 414, and the third meandering section 415), and the first main patch 411 is a rectangular patch having a large area; the first sub patch 412 is a rectangular patch with a small area, and is integrally formed with the first main patch 411; one end of the first bent portion 413 is connected to the first sub patch 412, and the other end thereof extends in a bent manner in a direction toward the ground portion 20 without abutting against the ground portion 20; one end of the second bending portion 414 is connected to the first main patch 411, and the other end extends in a bending manner toward the grounding portion 20 and is connected to the grounding portion 20; one end of the third bending portion 415 is connected to one side of the first sub patch 412 opposite to the first bending portion 413, and the other end extends in a bending manner towards the second radiation portion 42 and extends into a gap surrounded by the second radiation portion 42. The second radiation portion 42 includes a second main patch 421, a fourth meandering portion 422, and a fifth meandering portion 423; wherein, the second master patch 421 is rectangular; one end of the fourth bending part 422 is connected to the second main patch 421, and the other end extends in a bending way towards the grounding part 20 but does not collide with the grounding part 20; the fifth bending portion 423 is integrally C-shaped, one end of the fifth bending portion 423 is connected to the fourth bending portion 422 near the second main patch 421, and the other end of the fifth bending portion 423 is bent toward the second main patch 421, so as to partially accommodate the second main patch 421 therein, and form a C-shaped gap with the side of the second main patch 421, so that the second radiation portion 42 can be coupled to the first radiation portion 41 through the third bending portion 415.
Referring to fig. 1 to 2, in an embodiment of the present invention, the antenna further includes:
a feeding point set including a first feeding point 50 and a second feeding point (not shown), the first feeding point 50 being provided on the radiating portion 40, the second feeding point being provided on the ground portion 20; and the number of the first and second groups,
a power feed line 60, a first end of the power feed line 60 is connected with the power feed point set, a second end of the power feed line 60 is used for connecting the electronic device, and the power feed line is used for realizing communication connection between the antenna and the electronic device.
In this embodiment, the feeding points are set as connection points of the feeding line 60 and the antenna, wherein the first feeding point 50 is disposed on the radiation portion 40, and the second feeding point is disposed on the ground portion 20. The feed line 60 may be a coaxial line or a microstrip line, and the feed line 60 includes an inner conductor and an outer conductor, wherein a first end of the inner conductor is configured to be connected with the first feed point 50, a first end of the outer conductor is configured to be connected with the second feed point, and a second end of the inner conductor and a second end of the outer conductor, i.e., a second end of the feed line, may be connected with a radio frequency transceiving end of a wireless communication circuit on a main control board 80 in the electronic device. The feeder line 60 is used for transmitting the current signal output by the radio frequency transceiving end to the antenna so as to excite the antenna to radiate electromagnetic waves of a corresponding frequency band; or, the receiving antenna senses the current signal output after the electromagnetic wave of the corresponding frequency band and transmits the current signal to the wireless communication circuit on the main control board 80 in the electronic device, so that the wireless communication connection with the electronic device is realized. In the embodiment shown in fig. 1, the first feeding point 50 is provided at one end of the fifth meandering portion 423 near the ground portion 20; in other alternative embodiments, the first feeding point 50 may also be disposed on the second radiating portion 42.
The utility model further provides an electronic device with a metal component 70, where the electronic device with the metal component 70 includes the metal component 70 and an antenna, and the specific structure of the antenna refers to the above embodiments, and since the electronic device with the metal component 70 adopts all technical solutions of all the above embodiments, the electronic device at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated here. Wherein the metal component 70 is connected to the antenna.
Referring to fig. 1 to 2, in an embodiment of the present invention, the metal component 70 is one or more combinations of a metal shielding plate, a metal heat dissipation plate, and a metal housing.
Optionally, the electronic device with the metal component 70 further includes a main control board 80, and the main control board 80 is electrically connected to the antenna.
In this embodiment, the main control board 80 includes a printed circuit board and a wireless communication circuit, and the functional circuits may be soldered on the printed circuit board and electrically connected to each other through circuit traces. The metal shielding plate can be arranged on the back surface of the printed circuit board to achieve an electromagnetic shielding effect; the metal radiating plate can be attached to the power devices in the functional circuits to absorb heat generated when the power devices work and radiate the absorbed heat to air or a shell to radiate the power devices; the shape of the metal shell is determined according to actual needs, and the metal shell can be used for leakage protection, electromagnetic shielding, dust prevention and collision protection without limitation. According to the technical scheme of the utility model, the metal assembly 70 is limited to the metal shielding plate, the metal heat dissipation plate and the metal shell, so that the functional integration level of the electronic device and the wireless communication performance of the electronic device are improved.
In another alternative embodiment, the electronic device with the metal heat dissipation plate is a window antenna, and is usually installed at a window position of a building to achieve better wireless communication strength.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An antenna for use in an electronic device having a metal component, the antenna comprising:
a ground part; and the number of the first and second groups,
one end of the conductive connecting piece is connected with the grounding part, the other end of the conductive connecting piece is used for being connected with a metal component in the electronic device, and the conductive connecting piece is configured to equivalently enlarge the area of the grounding part.
2. The antenna of claim 1, wherein the antenna further comprises:
a radiating portion connected with the ground portion.
3. The antenna of claim 2, wherein the antenna further comprises:
the grounding part and the radiation part are arranged on the substrate;
the radiation part is arranged on one side surface of the substrate with the grounding part;
or the radiation part is arranged on one side surface of the substrate back to the grounding part.
4. The antenna of claim 2, wherein the antenna further comprises:
a feeding point set including a first feeding point and a second feeding point, wherein the first feeding point is arranged on the radiating portion, and the second feeding point is arranged on the grounding portion; and the number of the first and second groups,
and a first end of the feeder line is connected with the feeding point set, a second end of the feeder line is used for connecting the electronic device, and the feeder line is used for realizing communication connection between the antenna and the electronic device.
5. An electronic device with a metal component, comprising:
a metal component; and the number of the first and second groups,
the antenna of any of claims 1-4, the metal component being connected to the antenna.
6. The electronic device with metal component of claim 5, wherein the metal component is one or more of a metal shielding plate, a metal heat dissipation plate, and a metal housing.
7. The metal-back electronic device of claim 6, further comprising a main control board electrically connected to the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713032.8U CN215418598U (en) | 2021-07-26 | 2021-07-26 | Antenna and electronic device with metal component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713032.8U CN215418598U (en) | 2021-07-26 | 2021-07-26 | Antenna and electronic device with metal component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215418598U true CN215418598U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121713032.8U Active CN215418598U (en) | 2021-07-26 | 2021-07-26 | Antenna and electronic device with metal component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215418598U (en) |
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2021
- 2021-07-26 CN CN202121713032.8U patent/CN215418598U/en active Active
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