CN115693093A - Antenna device and electronic apparatus - Google Patents
Antenna device and electronic apparatus Download PDFInfo
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- CN115693093A CN115693093A CN202110864317.XA CN202110864317A CN115693093A CN 115693093 A CN115693093 A CN 115693093A CN 202110864317 A CN202110864317 A CN 202110864317A CN 115693093 A CN115693093 A CN 115693093A
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- radiator
- feed
- phase shifter
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The embodiment of the application provides an antenna device and electronic equipment, and the antenna device includes: a first feed source; the first radiator is connected with the first feed source; the second radiator is connected with the first feed source through the phase shifter; the phase shifter can change a phase of an excitation signal fed to the second radiator to adjust a pattern of the antenna device, the pattern being formed by the first radiator and the second radiator together. In the antenna device, the phase shifter can change the phase of the excitation signal fed to the second radiator, so that the directional diagram of the antenna device can be adjusted, thereby improving the communication signal strength in the communication direction and improving the communication stability.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an antenna device and an electronic device.
Background
Electronic devices such as smart phones are generally provided with a plurality of antennas, such as a cellular antenna, a Wi-Fi (Wireless Fidelity) antenna, a GPS (Global Positioning System) antenna, a bluetooth antenna, and the like, so as to implement corresponding communication functions.
Currently, when an electronic device is communicating, an antenna pattern in the electronic device is fixed. Thus, when an electronic device communicates with other devices that are oriented at angles where the signal is weak in the directional pattern, a reduction in communication quality may result.
Disclosure of Invention
The embodiment of the application provides an antenna device and an electronic device, which can adjust a directional diagram of the antenna device, thereby improving communication stability.
An embodiment of the present application provides an antenna apparatus, including:
a first feed source;
the first radiator is connected with the first feed source; and
the second radiator is connected with the first feed source through a phase shifter;
wherein the phase shifter is capable of changing a phase of an excitation signal fed to the second radiator to adjust a pattern of the antenna device, the pattern being formed by the first radiator and the second radiator together.
An embodiment of the present application further provides an electronic device, including:
a housing;
and the antenna device is arranged on the shell and is the antenna device.
According to the antenna device provided by the embodiment of the application, the phase shifter is arranged, and the phase shifter can change the phase of the excitation signal fed into the second radiator, so that the phase of the excitation signal can be changed through the phase shifter when the communication signal is weak, the directional diagram of the antenna device can be adjusted, the communication signal strength in the communication direction can be improved, and the communication stability can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced 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 schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic view of a first structure of an antenna device according to an embodiment of the present application.
Fig. 3 is a directional diagram of the antenna device before directional diagram adjustment according to the embodiment of the present application.
Fig. 4 is a diagram illustrating a directional diagram of the antenna device after the directional diagram is adjusted according to the embodiment of the present application.
Fig. 5 is a schematic diagram of a second structure of an antenna apparatus according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of a third antenna device according to an embodiment of the present application.
Fig. 7 is a schematic diagram of a fourth structure of an antenna apparatus according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a second switch of the antenna device shown in fig. 7.
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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or other devices.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure.
The electronic device 100 includes a housing 10 and an antenna device 20. The antenna device 20 is mounted inside the housing 10. The antenna device 20 can transmit and receive Wireless signals, such as cellular signals, wi-Fi (Wireless Fidelity) signals, bluetooth signals, and GPS (Global Positioning System) signals, to realize corresponding communication functions.
In some embodiments, the housing 10 includes a metal bezel 11 and a battery cover 12. The metal middle frame 11 forms an integral framework of the electronic device 100, and is used for arranging functional components of the electronic device, for example, functional components such as a camera, a circuit board, a sensor and the like of the electronic device 100 can be arranged on the metal middle frame 11. The material of the metal bezel 11 may be, for example, an aluminum alloy, a magnesium alloy, or the like. The battery cover 12 is connected to the metal center 11. The battery cover 12 forms a rear case of the electronic device 100.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an antenna apparatus 20 according to an embodiment of the present disclosure.
The antenna device 20 includes a first feed 21, a first radiator 22, a second radiator 23, a phase shifter 24, and a first power divider 25.
Wherein the first feed 21 is configured to generate an excitation signal, such as a cellular excitation signal, a Wi-Fi excitation signal, a bluetooth excitation signal, etc. It will be appreciated that the Wi-Fi excitation signals may include excitation signals having a frequency of 2.4GHz and excitation signals having a frequency of 5 GHz.
The first radiator 22 is connected to the first feed 21 so that the first feed 21 can feed an excitation signal to the first radiator 22. It will be appreciated that the first radiator 22 is also grounded.
The second radiator 23 is disposed adjacent to the first radiator 22. The second radiator 23 is connected to the first feed 21 by a phase shifter 24, so that the first feed 21 can also feed excitation signals to the second radiator 23. It is understood that the second radiator 23 may also be grounded.
The first radiator 22 and the second radiator 23 may be radiators independently provided in the electronic device 100, for example, radiators provided by FPC (Flexible Printed Circuit), LDS (Laser Direct Structuring), or the like, or radiators formed by metal components in the electronic device 100.
In some embodiments, the first radiator 22 is formed on the metal bezel 11 of the electronic device 100. For example, a metal branch may be formed on the metal middle frame 11, and the first radiator 22 may be formed by the metal branch. The second radiator 23 is a radiator disposed in an FPC or LDS manner.
It can be understood that, since the first feed 21 is connected to the first radiator 22 and the second radiator 23 at the same time, the first power divider 25 may be disposed between the first feed 21 and the first radiator 22 and the second radiator 23. The first feed 21 is connected to the first radiator 22 and the second radiator 23 through the first power divider 25, respectively. For example, the first feed 21 may be connected to the first radiator 22 and the phase shifter 24 through the first power divider 25, respectively.
Wherein, when the antenna device 20 is in operation, the first radiator 22 and the second radiator 23 can jointly form a directional pattern of the antenna device 20. It will be appreciated that the directional pattern of the antenna arrangement 20 is such that the signal strength varies from direction to direction. For example, when the pattern has a null point and the antenna device 20 communicates in the direction of the null point of the pattern, the communication is unstable due to weak signal strength, and the disconnection or the like is likely to occur.
In the embodiment of the present application, the phase shifter 24 can change the phase of the excitation signal fed to the second radiator 23, for example, change the phase of the excitation signal fed to the second radiator 23 by the first feed 21, so as to adjust the directional pattern of the antenna device 20 formed by the first radiator 22 and the second radiator 23 together.
In practical applications, when the communication of the electronic device 100 is unstable or when the electronic device 100 detects that the communication signal is weak, it indicates that the communication direction of the electronic device 100 is a direction in which the signal in the directional pattern of the antenna apparatus 20 is weak. At this time, the electronic device 100 may control the phase shifter 24 to change the phase of the excitation signal fed to the second radiator 23 to adjust the pattern of the antenna device 20, so that the signal strength of the communication direction of the electronic device 100 is enhanced, thereby improving the communication stability of the electronic device 100.
For example, referring to fig. 3 and 4, fig. 3 is a directional diagram of the antenna device 20 provided in the embodiment of the present application before directional diagram adjustment, and fig. 4 is a directional diagram of the antenna device 20 provided in the embodiment of the present application after directional diagram adjustment.
The electronic equipment and the router are in Wi-Fi communication. Before the antenna device 20 adjusts the directional pattern, the router is in a direction in which the signal in the directional pattern of the electronic device is weak, as shown in fig. 3, at which time the communication between the electronic device and the router is unstable. After the phase of the excitation signal is changed by the phase shifter, the directional diagram of the electronic device is adjusted as shown in fig. 4, and the signal strength in the communication direction of the router is enhanced at this time, so that the communication stability between the electronic device and the router can be improved.
In some embodiments, referring to fig. 5, fig. 5 is a schematic diagram of a second structure of the antenna device 20 according to the embodiment of the present disclosure.
Wherein the antenna device 20 further comprises a first switch 26. The phase shifter 24 is connected to the first feed 21 through a first switch 26, and for example, is connected to the first feed 21 through the first switch 26 and the first power divider 25 in this order. The first switch 26 can turn on the first feed 21 and the phase shifter 24 or turn off the first feed 21 and the phase shifter 24. For example, the first switch 26 may be a single pole, single throw switch.
In practical applications, when the second radiator 23 needs to be used, for example, when the communication of the electronic device 100 is unstable, the first switch 26 may be controlled to connect the first feed 21 and the phase shifter 24, so that the phase shifter 24 adjusts the phase of the excitation signal fed to the second radiator 23 to adjust the pattern of the antenna device 20. When the communication using the second radiator 23 is not required, for example, the electronic device 100 is always stable, the first switch 26 may be controlled to disconnect the first feed 21 from the phase shifter 24.
In the antenna device 20 provided in the embodiment of the present application, the phase shifter 24 is disposed between the first feed 21 and the second radiator 23, and the phase shifter 24 can change the phase of the excitation signal fed to the second radiator 23, so that when the communication signal is weak, the phase shifter 24 can change the phase of the excitation signal to adjust the directional diagram of the antenna device 20, thereby improving the communication signal strength in the communication direction and improving the communication stability.
In some embodiments, referring to fig. 6, fig. 6 is a schematic structural diagram of a third antenna apparatus 20 provided in the embodiments of the present application.
The antenna device 20 further comprises a second feed 27, a third radiator 28 and a second power divider 29.
Wherein the second feed 27 is also configured to generate an incentive signal, such as a cellular incentive signal, a Wi-Fi incentive signal, a bluetooth incentive signal, or the like. It should be noted that the excitation signals generated by the second feed source 27 and the excitation signals generated by the first feed source 21 are excitation signals of the same frequency band, for example, they may all be cellular excitation signals, they may all be Wi-Fi excitation signals, they may all be bluetooth excitation signals, and so on.
The third radiator 28 is disposed adjacent to each of the first radiator 22 and the second radiator 23. The third radiator 28 is connected to the second feed 27, so that the second feed 27 can feed excitation signals to the third radiator 28. It is understood that the third radiator 28 may also be grounded. In some embodiments, the second radiator 23 is disposed between the first radiator 22 and the third radiator 28.
The third radiator 28 may be a radiator provided independently in the electronic device 100, for example, a radiator provided by a Flexible Printed Circuit (FPC) or a Laser Direct Structuring (LDS), or may be a radiator formed by a metal component in the electronic device 100.
In some embodiments, the third radiator 28 is also formed on the metal bezel 11 of the electronic device 100. For example, a metal branch may be formed on the metal middle frame 11, and the third radiator 28 may be formed by the metal branch.
When the antenna device 20 includes the third radiator 28, the pattern of the antenna device 20 is formed by the first radiator 22, the second radiator 23, and the third radiator 28.
It is to be understood that when the antenna device 20 includes the first radiator 22 and the third radiator 28, the first feed 21 and the second feed 27 may feed excitation signals of the same frequency band to the first radiator 22 and the third radiator 28, respectively. Therefore, the first radiator 22 and the third radiator 28 can radiate radio signals of the same frequency band to the outside, thereby forming a MIMO (multiple input multiple output) antenna to improve transmission efficiency of radio signals.
In some embodiments, as shown in fig. 6, the second radiator 23 is also connected to a second feed 27 through a phase shifter 24. The second feed 27 is thus able to feed excitation signals to the second radiator 23. When the second feed 27 feeds the excitation signal to the second radiator 23, the phase shifter 24 can change the phase of the excitation signal fed from the second feed 27 to the second radiator 23, thereby also being able to adjust the pattern of the antenna device 20.
It is understood that in some embodiments, the first and second feeds 21 and 27 may be simultaneously connected to the second radiator 23, and the first and second feeds 21 and 27 may simultaneously feed the excitation signal to the second radiator 23. The phase shifter 24 can change the phase of the excitation signal commonly fed to the second radiator 23 by the first and second feeds 21 and 27 to adjust the pattern of the antenna device 20.
It can also be understood that, since the second feed 27 is connected to the third radiator 28 and the second radiator 23 at the same time, a second power divider 29 may be disposed between the second feed 27 and the third radiator 28 and the second radiator 23. The second feed 27 is connected to the third radiator 28 and the second radiator 23 through the second power divider 29, respectively. For example, the second feed 27 may be connected to the third radiator 28 and the phase shifter 24 through the second power divider 29.
In some embodiments, referring to fig. 7, fig. 7 is a schematic diagram of a fourth structure of the antenna device 20 according to the embodiment of the present disclosure.
The antenna arrangement 20 further comprises a second switch 31. The phase shifter 24 is connected to the first feed 21 and the second feed 27 through the second switch 31, for example, connected to the first feed 21 through the second switch 31 and the first power divider 25 in sequence, and connected to the second feed 27 through the second switch 31 and the second power divider 29 in sequence.
The second switch 31 can connect the first feed 21 and the phase shifter 24 or disconnect the first feed 21 and the phase shifter 24, and the second switch 31 can also connect the second feed 27 and the phase shifter 24 or disconnect the second feed 27 and the phase shifter 24. That is, the second switch 31 can turn on the first feed 21 and the phase shifter 24, and turn off the second feed 27 and the phase shifter 24; the second feed 27 and the phase shifter 24 can be switched on, and the first feed 21 and the phase shifter 24 can be switched off; the first feed source 21 and the phase shifter 24 can be connected, and the second feed source 27 and the phase shifter 24 can be connected simultaneously; it is also possible to disconnect the first feed 21 from the phase shifter 24 while disconnecting the second feed 27 from the phase shifter 24.
It can be understood that when the second switch 31 turns on the first feed 21 and the phase shifter 24 and turns off the second feed 27 and the phase shifter 24, the first feed 21 can feed the excitation signal to the second radiator 23, and at this time, the phase shifter 24 can change the excitation signal fed from the first feed 21 to the second radiator 23, so as to adjust the directional pattern of the antenna device 20. When the second switch 31 turns on the second feed 27 and the phase shifter 24 and turns off the first feed 21 and the phase shifter 24, the second feed 27 can feed the excitation signal to the second radiator 23, and at this time, the phase shifter 24 can change the excitation signal fed from the second feed 27 to the second radiator 23, so as to adjust the directional pattern of the antenna device 20. When the second switch 31 switches on the first feed 21 and the phase shifter 24 and simultaneously switches on the second feed 27 and the phase shifter 24, the first feed 21 and the second feed 27 can simultaneously feed the excitation signal to the second radiator 23, and at this time, the phase shifter 24 can change the excitation signal jointly fed to the second radiator 23 by the first feed 21 and the second feed 27 to adjust the directional pattern of the antenna device 20.
In some embodiments, referring to fig. 8, fig. 8 is a schematic structural diagram of the second switch 31 of the antenna apparatus shown in fig. 7.
The second switch 31 includes four ports, for example, a first port 311, a second port 312, a third port 313 and a fourth port 314. The first port 311 is connected to the first feed 21, for example, connected to the first feed 21 through the first power divider 25; the second port 312 is connected to the second feed 27, for example, connected to the second feed 27 through the second power divider 29; the third port 313 is grounded; the fourth port 314 is connected to the phase shifter 24. The first port 311 can be connected to the fourth port 314 or the third port 313. The second port 312 can be connected to either the fourth port 314 or the third port 313.
It can be understood that when the first port 311 is connected to the fourth port 314, the first feed 21 and the phase shifter 24 can be connected; when the first port 311 is connected to the third port 313, the first feed 21 and the phase shifter 24 can be disconnected, and the first port 311 is grounded. When the second port 312 is connected to the fourth port 314, the second feed 27 can be connected to the phase shifter 24; the second feed 27 can be disconnected from the phase shifter 24 when the second port 312 is connected to the third port 313, and the second port 312 is grounded.
In some embodiments, the second switch 31 may include two single pole double throw switches, and the two single pole double throw switches share two throw terminals.
In the antenna device 20 provided in the embodiment of the present application, the phase shifter 24 is disposed between the first feed 21, the second feed 27, and the second radiator 23, and the phase shifter 24 can change the phase of the excitation signal fed to the second radiator 23, so that the phase shifter 24 can change the phase of the excitation signal when the communication signal is weak, so as to adjust the directional diagram of the antenna device 20, thereby improving the communication signal strength in the communication direction and improving the communication stability.
In the description of the present application, it is to be understood that terms such as "first", "second", and the like are used merely to distinguish one similar element from another, and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated.
The antenna device and the electronic device provided in the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (11)
1. An antenna device, comprising:
a first feed source;
the first radiator is connected with the first feed source; and
the second radiator is connected with the first feed source through a phase shifter;
wherein the phase shifter is capable of changing a phase of an excitation signal fed to the second radiator to adjust a pattern of the antenna device, the pattern being formed by the first radiator and the second radiator together.
2. The antenna device according to claim 1, further comprising a first switch, wherein the phase shifter is connected to the first feed via the first switch, and wherein the first switch is capable of turning on or off the first feed and the phase shifter.
3. The antenna device according to claim 1 or 2, further comprising:
and the first feed source is connected with the first radiator and the phase shifter through the first power divider.
4. The antenna device of claim 1, further comprising:
a second feed source;
and the third radiator is connected with the second feed source, and the directional diagram is formed by the first radiator, the second radiator and the third radiator together.
5. The antenna device according to claim 4, characterized in that the second radiator is further connected to the second feed via the phase shifter.
6. The antenna device according to claim 5, further comprising a second switch, wherein the phase shifter is connected to the first feed and the second feed through the second switch, wherein the second switch is capable of turning on or off the first feed and the phase shifter, and wherein the second switch is further capable of turning on or off the second feed and the phase shifter.
7. The antenna device according to claim 6, wherein the second switch includes a first port, a second port, a third port, and a fourth port, the first port is connected to the first feed, the second port is connected to the second feed, the third port is grounded, the fourth port is connected to the phase shifter, the first port is capable of connecting to the fourth port or the third port, and the second port is capable of connecting to the fourth port or the third port.
8. The antenna device according to any of claims 5 to 7, further comprising:
the first feed source is connected with the first radiator and the phase shifter through the first power divider;
and the second feed source is connected with the third radiator and the phase shifter through the second power divider.
9. The antenna device according to any one of claims 4 to 7, wherein the second radiator is disposed between the first radiator and the third radiator.
10. An electronic device, comprising:
a housing;
an antenna device mounted to the housing, the antenna device being as claimed in any one of claims 1 to 9.
11. The electronic device of claim 10, wherein the housing comprises:
the first radiator and the second radiator are both formed on the metal middle frame;
and the battery cover is connected with the metal middle frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110864317.XA CN115693093A (en) | 2021-07-29 | 2021-07-29 | Antenna device and electronic apparatus |
| PCT/CN2022/097692 WO2023005438A1 (en) | 2021-07-29 | 2022-06-08 | Antenna apparatus and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110864317.XA CN115693093A (en) | 2021-07-29 | 2021-07-29 | Antenna device and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115693093A true CN115693093A (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110864317.XA Pending CN115693093A (en) | 2021-07-29 | 2021-07-29 | Antenna device and electronic apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115693093A (en) |
| WO (1) | WO2023005438A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070146210A1 (en) * | 2004-02-25 | 2007-06-28 | Koninklijke Philips Electronic, N.V. | Antenna array |
| JP4199697B2 (en) * | 2004-05-31 | 2008-12-17 | パナソニック株式会社 | Portable radio |
| US10770791B2 (en) * | 2018-03-02 | 2020-09-08 | Pc-Tel, Inc. | Systems and methods for reducing signal radiation in an unwanted direction |
| CN208622946U (en) * | 2018-08-27 | 2019-03-19 | 京信通信系统（中国）有限公司 | The variable antenna of beam angle |
| CN112018494B (en) * | 2019-05-31 | 2022-02-25 | 华为技术有限公司 | Antenna and mobile terminal |
| CN113178705B (en) * | 2021-04-13 | 2023-01-17 | 维沃移动通信有限公司 | Polarized antenna and electronic device |
-
2021
- 2021-07-29 CN CN202110864317.XA patent/CN115693093A/en active Pending
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2022
- 2022-06-08 WO PCT/CN2022/097692 patent/WO2023005438A1/en unknown
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| WO2023005438A1 (en) | 2023-02-02 |
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