CN213520322U - Antenna system and electronic equipment - Google Patents
Antenna system and electronic equipment Download PDFInfo
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- CN213520322U CN213520322U CN202023262231.XU CN202023262231U CN213520322U CN 213520322 U CN213520322 U CN 213520322U CN 202023262231 U CN202023262231 U CN 202023262231U CN 213520322 U CN213520322 U CN 213520322U
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Abstract
The application discloses an antenna system and electronic equipment, wherein the antenna system comprises a resonance arm, a coupling arm, a first feed source circuit and a second feed source circuit; a gap is formed between the resonant arm and the coupling arm and is in coupling connection; the resonant arm comprises a first feed point, and the first feed circuit is connected with the first feed point; the coupling arm comprises a second feed point, and the second feed circuit is connected with the second feed point; the working frequency band of the first feed circuit is a medium-high frequency band, and the working frequency band of the second feed circuit is an L1 frequency band or an L5 frequency band. According to the antenna system, the second feed source circuit is added on the coupling arm, so that the efficiency bandwidth of the antenna system is improved, and the space utilization rate of the antenna system is improved; the working frequency band of the second feed circuit is L1 frequency band or L5 frequency band, so that the antenna system can meet the requirements of L1 frequency band or L5 frequency band.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to an antenna system and electronic equipment.
Background
Electronic equipment is updated rapidly, and the operating frequency band of antenna system is more and more, puts forward more demands to antenna system design, for example: location, size, spatial coexistence, etc. In the related art, the bandwidth coverage of the dual-branch medium-high frequency antenna system is insufficient, for example, B1-B3 cannot be covered, and B39-B41 or B3-B7 is not excellent enough in efficiency, and the second branch antenna is not designed in the coupling branch region, so that space is wasted, and the requirement of the electronic device for the L1 frequency band or the L5 frequency band cannot be met.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an antenna system and electronic equipment, and the technical problem that the requirement of the electronic equipment on an L1 frequency band or an L5 frequency band cannot be met due to insufficient bandwidth coverage of the antenna system for high frequency in double branches is at least solved.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an antenna system, where the antenna system includes a resonant arm, a coupling arm, a first feed circuit, and a second feed circuit; a gap is formed between the resonant arm and the coupling arm and is in coupling connection; the resonant arm comprises a first feed point, and the first feed circuit is connected with the first feed point; the coupling arm comprises a second feed point, and the second feed circuit is connected with the second feed point; the working frequency band of the first feed circuit is a medium-high frequency band, and the working frequency band of the second feed circuit is an L1 frequency band or an L5 frequency band.
In a second aspect, an embodiment of the present application provides an electronic device, including: an antenna system as in the first aspect of the present application.
In the embodiment of the application, a gap is formed between the resonant arm and the coupling arm, and the resonant arm and the coupling arm are coupled to form a coupling area through the resonant arm and the coupling arm; the resonating arm comprises a first feed point, the coupling arm comprises a second feed point, the first feed circuit is electrically connected to the first feed point, the second feed circuit is electrically connected to the second feed point, the working frequency range of the first feed circuit is a medium-high frequency range, the working frequency range of the second feed circuit is an L1 frequency range or an L5 frequency range, and the working frequency range of the second feed circuit is lower than that of the first feed circuit.
Like this, this application embodiment improves antenna system, the second feed circuit has been increased on the coupling arm, antenna system's efficiency bandwidth has been promoted, antenna system's space utilization is promoted, utilize the coupling arm to design the second feed circuit, electronic equipment has satisfied the new demand of electronic equipment to the navigation frequency channel, and the working frequency channel of second feed circuit is L1 frequency channel or L5 frequency channel, make this antenna system can satisfy the demand of L1 frequency channel or L5 frequency channel. Therefore, the antenna system provided by the embodiment of the application can realize the design of the L1 frequency band or the L5 frequency band, and can isolate the influence on the first feed circuit. In addition, compared with a single antenna design mode, the antenna can obtain higher radiation efficiency bandwidth through structure-frequency separation design.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of an antenna system according to one embodiment of the present application;
fig. 2 is a schematic diagram of an antenna system according to yet another embodiment of the present application.
Reference numerals in fig. 1 and 2:
100 resonant arm, 102 ground segment, 104 resonant segment, 200 coupled arm, 300 first feed circuit, 302 first feed, 304 third matching element, 400 second feed circuit, 402 second feed, 404 fourth matching element, 500 tuning circuit, 502 switch, 504 first matching element, 506 second matching element, 600 second feed tuning element.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. 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 application.
In the description and claims of this application, the term "plurality" means two or more unless otherwise specified. Further, "and/or" in the specification and claims means at least one of the connected objects.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
An antenna system and an electronic device according to embodiments of the application are described below in connection with fig. 1 and 2.
As shown in fig. 1 and fig. 2, an embodiment of the first aspect of the present application proposes an antenna system, which includes: a resonant arm 100, a coupling arm 200, a first feed circuit 300 and a second feed circuit 400; the resonant arm 100 and the coupling arm 200 are in coupling connection with a gap therebetween; the resonant arm 100 comprises a first feed point a1, and the first feed circuit 300 is connected to the first feed point a 1; the coupling arm 200 comprises a second feed point a2, the second feed circuit 400 is connected to the second feed point a 2; the working frequency band of the first feed circuit 300 is a medium-high frequency band, and the working frequency band of the second feed circuit 400 is an L1 frequency band or an L5 frequency band.
As shown in fig. 1 and fig. 2, in the antenna system according to the embodiment of the first aspect of the present application, the resonating arm 100 and the coupling arm 200 have a gap therebetween and are coupled to form a coupling region C through the resonating arm 100 and the coupling arm 200; the resonant arm 100 comprises a first feed point A1, the coupling arm 200 comprises a second feed point A2, the first feed circuit 300 is electrically connected to the first feed point A1, the second feed circuit 400 is electrically connected to the second feed point A2, the working frequency range of the first feed circuit 300 is a medium-high frequency range, the working frequency range of the second feed circuit 400 is an L1 frequency range or an L5 frequency range, and the working frequency range of the second feed circuit 400 is lower than that of the first feed circuit 300.
Like this, this application embodiment improves antenna system, second feed circuit 400 has been increased on coupling arm 200, antenna system's efficiency bandwidth has been promoted, antenna system's space utilization is promoted, utilize coupling arm 200 to design second feed circuit 400, electronic equipment has satisfied the new demand of electronic equipment to the navigation frequency channel, and the operating frequency channel of second feed circuit 400 is L1 frequency channel or L5 frequency channel, make this antenna system can satisfy the demand of L1 frequency channel or L5 frequency channel. Therefore, the antenna system provided by the embodiment of the application can realize the design of the L1 frequency band or the L5 frequency band, and can isolate the influence on the first feed circuit 300. In addition, compared with a single antenna design mode, the antenna can obtain higher radiation efficiency bandwidth through structure-frequency separation design.
Specifically, the antenna systems in the embodiments of the present application are structurally separated, and also substantially separated in operating frequency: the medium-high frequency radiation uses different effective radiation body sizes, and is favorable for improving the radiation efficiency bandwidth. Specifically, as understood from the structural form of the antenna system, when the antenna system operates in the intermediate frequency band, the resonating arm 100 and the coupling arm 200 cooperate with each other; the tuning of the resonating arm 100 plays a major role when the antenna system operates in the high frequency band.
Specifically, the medium-high frequency band is 1.71GHz to 2.69GHz, the medium-high frequency band is 1.71GHz to 2.17GHz, the high frequency band is 2.3GHz to 2.69GHz, the L5 frequency band is 1176MHz ± 1MHz, and the L1 frequency band is 1575MHz ± 1 MHz.
As shown in fig. 1 and 2, as a possible implementation, the resonant arm 100 includes a ground segment 102 and a resonant segment 104 connected to each other. The ground segment 102 is used for grounding, and the resonant segment 104 is connected to the ground segment 102 and can form a coupling region C with the coupling arm 200. Further, the distance from the first feed point a1 to the connection of the ground segment 102 and the resonating segment 104 is L, and L < 5mm is satisfied. Therefore, the ground return distance from the first feed point A1 to the resonant arm 100 is small, the efficiency bandwidth of the medium-high frequency antenna can be effectively improved, the carrier aggregation pair antenna bandwidth is covered, the antenna system can cover B1-B3, the efficiency is high at B39-B41 or B3-B7, and the working speed of the antenna system is effectively improved.
Specifically, L may be 1mm, 2mm, 3mm, 4mm, 5mm, or the like.
As shown in fig. 1, as a possible implementation, the antenna system further includes a tuning circuit 500, one end of the tuning circuit 500 is grounded, and the other end is connected to the resonant arm 100. Thus, in the embodiment of the present application, the tuning circuit 500 is designed in the middle-high frequency feed source branch, and the influence on the second feed source circuit 400 on the side of the coupling arm 200 is very weak; and the second feed source circuit 400 uses a low-pass matching network, thereby realizing the space sharing of antennas in different frequency bands and improving the utilization rate of the antenna-structure space.
As shown in fig. 1, as one possible implementation, the tuning circuit 500 includes a plurality of switches 502 and a plurality of first matching elements 504. One end of each of the switches 502 is grounded, the other end is simultaneously connected to the resonant arm 100, and the first matching elements 504 are respectively connected in series between the switches 502 and the resonant arm 100. Thus, the operating frequency band of the antenna system can be changed by turning on a different number of switches 502.
Specifically, taking four switches 502 as an example, when all four switches 502 are in an off state, effective radiation in a frequency band of 1.71GHz to 2.17GHz can be generally achieved; under the condition that one of the two switches 502 on the right side is conductive, the effective radiation of the frequency band from 1.88GHz to 2.7GHz can be realized.
As shown in fig. 1, as a possible implementation, the resonating arm 100 further includes a third feed point A3, and the plurality of switches 502 are connected to the third feed point A3. The tuning circuit 500 further comprises a second matching element 506, one end of the second matching element 506 being connected to ground and the other end being connected to the third feed point a3, such that the second matching element 506 is used in cooperation with the switch 502 and the first matching element 504. In particular, the second matching element 506 may be used as a switched shunt inductance connected to the resonator arm 100.
As shown in fig. 1 and 2, as one possible implementation, the antenna system further includes a second feed tuning element 600. Wherein one end of the second feed tuning element 600 is connected to ground and the other end is connected to the second feed a 2. The second feed circuit 400 is a narrow band, and can realize the resonant design of the L5 frequency band and isolate the influence on the medium-high frequency antenna by matching with the second feed tuning element 600. Specifically, here, the second feed tuning element 600 may be a capacitor, or may also be an L + C resonant circuit, or the like.
As shown in fig. 1 and 2, as one possible implementation, a first feed circuit 300 includes a first feed 302 and a third matching element 304 used in cooperation. One end of the first feed 302 is grounded, and the other end is connected to the first feed a1 after being connected to the third matching element 304 in series.
As shown in fig. 1 and 2, as one possible implementation, the second feed circuit 400 includes a second feed 402 and a fourth matching element 404 that are used in cooperation. One end of the second feed 402 is grounded, and the other end is connected to the second feed a2 after being connected to the fourth matching element 404 in series.
As a possible implementation, the resonator arm 100 (e.g. 15mm), the coupling arm 200 (e.g. in the range of 15mm to 20 mm) are designed with appropriate physical dimensions.
An embodiment of a second aspect of the present application proposes an electronic device including an antenna system as in the embodiment of the first aspect of the present application. Therefore, the overall benefits of the antenna system are not discussed herein.
Specifically, the electronic device may be: mobile phones, tablet computers, and the like.
As a possible implementation, the electronic device further includes a metal piece. The metal piece is provided with a gap filled with a non-metal material, and the gap separates the metal piece to form two metal cantilevers, wherein the two metals are the resonance arm 100 and the coupling arm 200 respectively.
It should be noted that gases, such as air, etc., may also be understood as non-metallic materials. The metal piece can be a shell of the electronic device, and also can be a middle frame or other structures of the electronic device.
Electronic equipment is updated rapidly, and the operating frequency band of antenna system is more and more, puts forward more demands to antenna system design, for example: location, size, spatial coexistence, etc. In the related art, the bandwidth coverage of the dual-branch medium-high frequency antenna system is insufficient, for example, B1-B3 cannot be covered, and B39-B41 or B3-B7 is not excellent enough in efficiency, and the space is wasted because the second branch antenna is not designed in the coupling branch region. For example, the L5 band requirement of the existing electronic device cannot be satisfied.
As shown in fig. 1 and fig. 2, the embodiment of the present application can improve the efficiency bandwidth of an antenna system, cover the carrier aggregation to the antenna bandwidth, further improve the speed, improve the space utilization of the antenna system, and design one antenna by using the medium-high frequency antenna branch. Specifically, in the embodiment of the present application, a dual-branch medium-high frequency antenna structure is improved, and a tuning circuit 500 is disposed on the resonant arm 100; the coupling arm 200 is provided with a second feed circuit 400, the operating frequency band of the second feed circuit 400 is the L1 frequency band or the L5 frequency band, and the matching network of the second feed circuit 400 is a low-pass network.
Specifically, as shown in fig. 1, the first feed circuit 300 and the second feed circuit 400 are respectively located on two branches, the longer branch is the resonant arm 100, the first feed circuit 300 is connected to the resonant arm 100 to match the medium-high frequency feed signal, and the second feed circuit 400 is connected to the coupling arm 200. The resonating arm 100 and the coupling arm 200 are open opposite to each other, forming a coupling region C. The second feed circuit 400 is disposed at the end of the coupling arm 200, and the operating frequency band of the second feed circuit 400 is lower than that of the first feed circuit 300, for example, the operating frequency band of the second feed circuit 400 may be an L1 frequency band or an L5 frequency band. Meanwhile, a tuning circuit 500 can be arranged at the end of the resonance arm 100, the tuning circuit 500 is provided with a plurality of switches 502, and good radiation in the frequency band of 1.71GHz to 2.69GHz can be realized through the cooperation of the plurality of switches 502.
As shown in fig. 1, the antenna system provided in the embodiment of the present application may operate in the frequency band of 1.71GHz to 2.69GHz and the frequency band of L5, and has the following characteristics: the resonant arm 100 and the coupling arm 200 are two antenna branches generated by slotting and opening on a metal piece, and the opening position is a coupling area C; the access point of the first feed circuit 300 (i.e. the first feed point a1) is very small, about 2mm, from the ground return of the resonating arm 100; the access point of the second feed circuit 400 (i.e. the second feed point a2) is near the end of the coupling arm 200, and its matching network is a low-pass network (which may be an L1 band or an L5 band).
The embodiment of the present application designs the resonator arm 100 (e.g. 15mm) and the coupling arm 200 (e.g. 15mm to 20mm range) with proper physical dimensions, feeds at a position close to the ground of the resonator arm 100, and acts through the matching network and the tuning circuit 500, and can produce the following effects: mid-band antenna design (1.71GHz to 2.17 GHz): when the four switches 502 in the tuning circuit 500 are all in the off state, the effective radiation of the frequency band from 1.71GHz to 2.17GHz can be realized; under the condition that one of the two switches 502 on the right side in the tuning circuit 500 is conducted, the effective radiation of the frequency band from 1.88GHz to 2.7GHz can be realized; the second matching element 506 is typically an inductive component. The L5 frequency band antenna is a narrow band, and can realize the resonance design of L5 and isolate the influence on the medium-high frequency antenna through a parallel capacitor and a series inductor, wherein the parallel capacitor is not only a capacitor but also can be an L + C resonance circuit.
The antenna systems in the embodiments of the present application are structurally separated, and also substantially separated in operating frequency: the medium-high frequency radiation uses different effective radiation body sizes, and is favorable for improving the radiation efficiency bandwidth. Specifically, as understood from the structural form of the antenna system, when the antenna system operates in the intermediate frequency band, the resonating arm 100 and the coupling arm 200 cooperate with each other; the tuning of the resonating arm 100 plays a major role when the antenna system operates in the high frequency band.
Compared with a single resonant arm antenna design mode, the structure-frequency separation design can obtain higher radiation efficiency bandwidth. For example, in a single resonant arm design, high frequency is usually realized by using an IFA/LOOP basic model and a tuning switch, and generally, at least more than two tuning states are required to meet the coverage requirement of an antenna frequency band, and the carrier aggregation bandwidth between the frequency bands cannot be met; in the embodiment of the application, the tuning arm is designed to tune the medium-high frequency tuning circuit 500, so that the influence on the second feed source circuit 400 is very weak; and the second feed source circuit 400 uses a low-pass matching network, thereby realizing the space sharing of antennas in different frequency bands and improving the utilization rate of the antenna-structure space.
The antenna system shown in fig. 2 is substantially identical in structure to the antenna system shown in fig. 1, except that no tuning circuit 500 is provided on the resonating arm 100. And, the lowest frequency in the operating frequency band of the first feed circuit 300 is higher than the highest frequency in the operating frequency band of the second feed circuit 400.
Other configurations of …, such as … and …, and the like and operation according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An antenna system, characterized in that,
the antenna system comprises a resonance arm, a coupling arm, a first feed circuit and a second feed circuit;
a gap is formed between the resonance arm and the coupling arm and is in coupling connection;
the resonant arm comprises a first feed point, and the first feed circuit is connected to the first feed point;
the coupling arm comprises a second feed point, and the second feed circuit is connected with the second feed point;
the working frequency band of the first feed circuit is a medium-high frequency band, and the working frequency band of the second feed circuit is an L1 frequency band or an L5 frequency band.
2. The antenna system of claim 1,
the resonance arm comprises a grounding section and a resonance section which are connected;
the grounding section is grounded, and the resonant section and the coupling arm form the gap;
the distance from the first feed point to the junction of the ground section and the resonant section is less than 5 mm.
3. The antenna system of claim 1, further comprising:
and one end of the tuning circuit is grounded, and the other end of the tuning circuit is connected to the resonance arm.
4. The antenna system of claim 3, wherein the tuning circuit comprises:
one ends of the switches are grounded, and the other ends of the switches are connected to the resonance arm;
a plurality of first matching elements respectively connected in series between the plurality of switches and the resonating arms.
5. The antenna system of claim 4,
the resonant arm further comprises a third feed point, and the plurality of switches are connected to the third feed point;
the tuning circuit further comprises a second matching element, one end of the second matching element is grounded, and the other end of the second matching element is connected to the third feed point.
6. The antenna system of any one of claims 1 to 5, further comprising:
and one end of the second feed source tuning element is grounded, and the other end of the second feed source tuning element is connected to the second feed point.
7. The antenna system of any of claims 1-5, wherein the first feed circuit comprises:
the first feed source is grounded at one end;
a third matching element connected in series between the first feed and the first feed point.
8. The antenna system of any of claims 1-5, wherein the second feed circuit comprises:
one end of the second feed source is grounded;
and the fourth matching element is connected between the other end of the second feed source and the second feed point in series.
9. An electronic device, comprising:
an antenna system as claimed in any one of claims 1 to 8.
10. The electronic device of claim 9, further comprising:
a metal member;
and the gap is formed in the metal piece, and the resonance arm and the coupling arm are respectively formed on two sides of the gap by the metal piece.
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| CN202023262231.XU CN213520322U (en) | 2020-12-29 | 2020-12-29 | Antenna system and electronic equipment |
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| CN202023262231.XU CN213520322U (en) | 2020-12-29 | 2020-12-29 | Antenna system and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644438A (en) * | 2021-08-31 | 2021-11-12 | 维沃移动通信有限公司 | Antenna device and electronic apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644438A (en) * | 2021-08-31 | 2021-11-12 | 维沃移动通信有限公司 | Antenna device and electronic apparatus |
| WO2023030401A1 (en) * | 2021-08-31 | 2023-03-09 | 维沃移动通信有限公司 | Antenna apparatus and electronic device |
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