CN110148830B - Antenna group - Google Patents
Antenna group Download PDFInfo
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- CN110148830B CN110148830B CN201910395156.7A CN201910395156A CN110148830B CN 110148830 B CN110148830 B CN 110148830B CN 201910395156 A CN201910395156 A CN 201910395156A CN 110148830 B CN110148830 B CN 110148830B
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- yagi antenna
- radio frequency
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- yagi
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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
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
Abstract
The embodiment of the application provides an antenna group, relates to the field of electronic communication equipment terminals, and is used for achieving automatic adjustment of an antenna according to environmental changes. The antenna group comprises at least two yagi antenna units, radio frequency switches in one-to-one correspondence with the yagi antenna units, a radio frequency transceiving link, a control unit and a comparator; wherein: the yagi antenna units are used for receiving signals, and in each pair of the yagi antenna units and the radio frequency switch which correspond to each other, one end of the radio frequency switch is connected with the yagi antenna units, and the other end of the radio frequency switch is in signal connection with the comparator through a radio frequency transceiving link; the comparator is in signal connection with the control unit and is used for comparing the signal strength received by the at least two yagi antenna units and sending the comparison result to the control unit; and the control unit is used for controlling the radio frequency switch connected with the yagi antenna unit with the maximum signal strength in the comparison result to be closed. Thus, the antenna unit with the maximum signal strength can be selected for the terminal to transmit and receive data, and the efficiency of data transmission and reception can be improved.
Description
Technical Field
The application relates to the field of electronic communication equipment terminals, in particular to an antenna group.
Background
The current 5G antenna adopts a phased array to realize beam scanning, and beams of the 5G antenna are scanned according to a certain rule and cannot be automatically adjusted according to environmental changes. The traditional adaptive antenna array algorithm is complex, a power divider and a shifter are required to be integrated to realize beam forming, and the cost of the power divider and the shifter used for the terminal is too high at present.
Disclosure of Invention
In order to realize that an antenna of a 5G mobile terminal can be automatically adjusted according to environmental changes, an embodiment of the present application provides an antenna group.
The antenna group is applied to a 5G mobile terminal and comprises at least two yagi antenna units, radio frequency switches in one-to-one correspondence with the yagi antenna units, a radio frequency transceiving link, a control unit and a comparator; wherein:
the yagi antenna units are used for receiving signals, and each pair of the yagi antenna units and the radio frequency switch which correspond to each other is connected with the yagi antenna units at one end and connected with the comparator through the radio frequency transceiving link at the other end;
the comparator is in signal connection with the control unit and is used for comparing the signal strength received by the at least two yagi antenna units and sending the comparison result to the control unit;
and the control unit is used for receiving the comparison result sent by the comparator and controlling the radio frequency switch connected with the yagi antenna unit with the maximum signal intensity in the comparison result to be closed.
Optionally, each yagi antenna unit includes: a first type director, an active vibrator and a reflector;
the first-type director, the active vibrator and the reflector are arranged on a PCB (printed Circuit Board) of the 5G mobile terminal; the reflector is connected with one end of the corresponding radio frequency switch.
Alternatively to this, the first and second parts may,
each yagi antenna unit further comprises: a second type of director;
the second type of director is conductive metal and is arranged in the front shell of the mobile phone.
Optionally, the second type of director is disposed in the front case of the mobile phone, and includes:
and an integrated structure formed by injection molding is arranged between the second type of director and the front shell of the mobile phone.
Optionally, the second type of director is embedded in the front shell of the mobile phone.
Optionally, the PCB includes a routing layer, and two sides of the routing layer are respectively provided with at least one board body;
the board body on one side of the routing layer is provided with a hollow part for leaking out of the routing layer to form the first-type director, the active oscillator and the reflector.
Optionally, the first-type director, the active oscillator and the reflector have microstrip line structures; the microstrip line structure is arranged at the end part of the PCB.
Optionally, the first type director comprises at least two directors.
Optionally, the interval between two adjacent yagi antenna units is greater than or equal to a quarter wavelength of the received signal.
Optionally, the PCB is provided with at least one yagi antenna unit in which the constituent units are arranged along a first direction and at least one yagi antenna unit in which the constituent units are arranged along a second direction; the composition unit comprises an active array of the yagi antenna unit, a first-type director and a reflector;
the included angle between the first direction and the second direction is smaller than a right angle.
In the antenna group, the yagi antenna units correspond to different directions, the signal gain of the corresponding direction of each yagi antenna unit can be enhanced through the director of the yagi antenna unit, and the mutual interference among the signals received by each yagi antenna unit improves the signal quality. Through the comparator and the control unit, the antenna unit with the maximum signal intensity can be selected to be used for the terminal to receive and transmit data, and the data receiving and transmitting efficiency can be improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an antenna group according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a yagi antenna unit in an embodiment of the present application;
fig. 3 is a block diagram of a yagi antenna unit according to an embodiment of the present application;
fig. 4 is a schematic diagram of another antenna group structure in the embodiment of the present application.
Detailed Description
At present, antennas of 2G, 3G and 4G mobile terminals are generally omnidirectional antennas and do not have the capability of signal interference resistance. With the development of 5G, antennas applied to 5G mobile terminals have become a concern. In the prior art, a 5G antenna adopts a phased array to realize beam scanning, and cannot be automatically adjusted according to the change of signal intensity. And the traditional antenna array algorithm is complex and is not suitable for 5G mobile terminals.
The embodiment of the application provides an antenna group which is applied to a 5G mobile terminal. The antenna group comprises at least two yagi antenna units for receiving signals and radio frequency switches corresponding to the yagi antenna units one by one, each pair of the mutually corresponding yagi antenna units and the radio frequency switches, one end of each radio frequency switch is connected with the yagi antenna units, and the other end of each radio frequency switch is in signal connection with a comparator through a radio frequency transceiving link. The comparator is also in signal connection with the control unit and is used for comparing the signal strength received by the at least two yagi antenna units and sending the comparison result to the control unit. And the control unit is used for receiving the comparison result sent by the comparator and controlling the radio frequency switch connected with the yagi antenna unit with the maximum signal strength in the comparison result to be closed. The yagi antenna has the advantages of high gain and good directivity, and the reflector in the unit of the yagi antenna is the longest and is slightly larger than one half of the signal wavelength. And the operating frequency of the 5G terminal is in the ultrahigh frequency range of about 3GHZ-30GHZ, so that the yagi antenna can be integrated in the 5G mobile terminal. The antenna array formed by the antennas in the 5G mobile terminal can receive and transmit data through the yagi antenna unit with the maximum signal intensity, and can adapt to environmental changes to be automatically adjusted, so that the communication quality is guaranteed. In addition, the yagi antenna does not need a complex algorithm, and is more convenient to implement.
In the antenna group, at least two yagi antenna units correspond to different directions, that is, the space ranges for which different yagi antennas are responsible are different. Through the radio frequency switch, the comparator and the control unit, the terminal monitors the signal intensity in multiple directions in space in real time, and selects the antenna with the maximum signal intensity from the received signals for receiving and transmitting data, so that the data transmission efficiency can be improved. Furthermore, due to the reflector of the yagi antenna element, undesired signals can be suppressed; and the director of yagi antenna unit can strengthen the signal in the corresponding direction, has reduced the mutual interference between the signal, improves signal quality.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
Fig. 1 is a schematic diagram of an antenna group according to an embodiment of the present application. The antenna group comprises at least two yagi antenna units 100, radio frequency switches 101 corresponding to the yagi antenna units one by one, a radio frequency transceiving link 102, a comparator 103 and a control unit 104.
The yagi antenna units 100 are used for receiving signals, and in each pair of the yagi antenna units and the radio frequency switch corresponding to each other, one end of the radio frequency switch 101 is connected to the yagi antenna unit 100, and the other end is connected to the comparator 103 through the radio frequency transceiving link 102.
The comparator 103 is in signal connection with the control unit 104, and the comparator is used for comparing the signal strength received by the yagi antenna unit 100 and sending the comparison result to the control unit 104.
And the control unit 104 is configured to receive the comparison result and control the radio frequency switch connected to the yagi antenna unit with the highest signal strength in the comparison result to be turned on.
During specific implementation, each radio frequency switch corresponding to the yagi antenna unit is in a closed state, after the comparator sends the comparison result to the control unit, the control unit controls the radio frequency switch of the yagi antenna unit with the maximum signal intensity to be kept in the closed state according to the comparison result, and other radio frequency switches corresponding to the yagi antenna units are switched to be in an open state, so that antenna selection is achieved.
Optionally, in each pair of the yagi antenna unit and the radio frequency switch corresponding to each other, one end of the radio frequency switch is connected to the yagi antenna unit, and the other end is connected to the control unit. One end of the comparator is connected with the yagi antenna unit through the radio frequency transceiving link, and the other end of the comparator is connected with the control unit. During specific implementation, each radio frequency switch corresponding to the yagi antenna unit is in a disconnected state, and after the comparator receives signals of the yagi antenna unit through the radio frequency transceiving link, the comparison result is sent to the control unit. The control unit can control the radio frequency switch connected with the yagi antenna unit with the maximum signal intensity to be closed according to the comparison result, so that the selection of the antenna is realized.
In the antenna group, each yagi antenna unit corresponds to one direction, the signal intensity in multiple directions is monitored in real time through the radio frequency switch, the comparator and the control unit, and the antenna with the maximum signal intensity is selected from received signals and used for receiving and transmitting data, so that the data receiving and transmitting quality can be improved.
In specific implementation, each yagi antenna unit 100 includes: a first type director 1000, an active element 1001 and a reflector 1002. Fig. 2 is a schematic diagram of a yagi antenna unit according to an embodiment of the present application. In specific implementation, for a 5G terminal, the first-type director 1000, the active oscillator 1001 and the reflector 1002 are disposed on a PCB (not shown) of the 5G mobile terminal, and the reflector 1002 is connected to one end of a corresponding rf switch (not shown).
Specifically, the PCB board may be a low-loss PCB, and the loss tangent is controlled to be about two thousandths. The PCB is provided with at least one yagi antenna unit with constituent units arranged along a first direction and at least one yagi antenna unit with constituent units arranged along a second direction; the composition unit comprises an active array of the yagi antenna unit, a first-type director and a reflector; the included angle between the first direction and the second direction is smaller than a right angle. In practical implementation, the interval between two adjacent yagi antenna units is greater than or equal to a quarter wavelength of a received signal. Therefore, the yagi antenna units can cover all directions, the signal intensity of all directions is monitored, the yagi antenna with the maximum signal intensity is selected for signal transmission, and the signal transmission efficiency is improved.
Wherein the first type of director 1000 includes at least two directors. Since the directors can increase the signal gain in the corresponding direction, the more directors, the sharper the signal transmission direction, the higher the signal gain. In specific implementation, when the number of directors exceeds 4 or 5, the influence on the signal is reduced. Optionally, in order to make the 5G mobile terminal using the antenna group of the embodiment of the present application lighter and thinner, the number of the first type directors is at most 5. In the 5G terminal, the first director 1000 can enhance the signal strength in the corresponding direction, eliminate the mutual interference between signals, and improve the quality of signals. The reflector 1002 can suppress undesired signals, enabling point-to-point data transmission.
In specific implementation, the constituent units of the yagi antenna unit can be arranged on the PCB in the following two ways.
The first method is as follows:
the PCB comprises a wiring layer, and at least one plate body is arranged on each of two sides of the wiring layer; the board body on one side of the routing layer is provided with a hollow part for leaking out of the routing layer to form the first-type director, the active oscillator and the reflector.
Fig. 3 is a structural diagram of a yagi antenna unit according to an embodiment of the present application. The yagi antenna unit includes two first-type directors therein.
As shown in the image portion a of fig. 3, which is a side view of the PCB, the black portion is a board body, the white portion is a routing layer, and the routing layer may be a conductive metal such as copper. As shown in the b image part of fig. 3, which is a front view of the PCB board. The blank part is a hollow part on the board body, a routing layer leaks from the hollow part, and the leaking routing layer forms two first-type directors 1000, an active oscillator 1001 and a reflector 1002 respectively.
In the structure, the routing layer is made of conductive metal and has a certain thickness. Therefore, the radiation area of the antenna unit can be increased, and the received signal strength can be enhanced.
The second method comprises the following steps:
the first-type director, the active oscillator and the reflector are of microstrip line structures; the microstrip line structure is arranged at the end part of the PCB.
The microstrip line is a planar transmission line, so that the structure is small in size, light in weight, capable of enabling the 5G mobile terminal to be designed to be light and thin and low in manufacturing cost.
In order to improve the signal gain, in the antenna group provided in the embodiment of the present application, each yagi antenna unit 100 further includes a director 1003 of the second type. The second director 1003 is a conductive metal and is disposed in the front cover of the phone.
In the book-reading method, the second type of director is made of conductive metal and is arranged in the front shell of the mobile phone, so that the radiation surface of a signal along the width direction of the second type of director can be increased, the lobe width of the signal along the width direction is increased, and the gain of the signal is improved.
In specific implementation, each second-type director corresponds to the first-type director, the active oscillator and the reflector one by one. Each director of the second type is parallel to the directors of the first type, the active element and the reflector.
Specifically, an injection-molded integrated structure is arranged between the second type of director and the front shell of the mobile phone. Therefore, the appearance of the 5G mobile terminal can be more attractive by the injection molding method, and no breakpoint exists. Optionally, the second type of director is embedded in the terminal front shell.
In order to more clearly understand the technical solutions provided by the embodiments of the present application, the following is further illustrated by fig. 4.
As shown in fig. 4, there are 5 yagi antenna elements, 01-05 respectively.
Each yagi antenna element comprises a second type director 1003 (shown as a black portion in the front cover of the handset in fig. 4), two second type directors 1000, and an active element 1001 and reflector 1002.
Each yagi antenna unit receives the signal strength in real time, and sends the received signal to a comparator (not shown in the figure) through a radio frequency transceiving link, and the comparator compares the signal strength received by each yagi antenna unit, and the comparison result shows that the signal strength of the yagi antenna unit 02 is the maximum. And sends the comparison result to a control unit (not shown in the figure), and the control unit controls the rf switch 20 connected to the yagi antenna unit 02 to be kept closed and the rf switches 10, 30, 40, 50 to be opened.
In the structure, the 5 yagi antenna units correspond to different directions, the first-type director and the second-type director can enhance the signal gain of the corresponding direction of each yagi antenna unit, and the mutual interference among signals received by each yagi antenna unit improves the signal quality. Through the comparator and the control unit, the antenna unit with the maximum signal intensity can be selected to be used for the terminal to receive and transmit data, and the data receiving and transmitting efficiency can be improved.
The above embodiments are only used to describe the technical solutions of the present application in detail, but the above embodiments are only used to help understanding the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily apparent to one skilled in the art are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. An antenna group is characterized in that the antenna group is applied to a 5G mobile terminal and comprises at least two yagi antenna units, radio frequency switches in one-to-one correspondence with the yagi antenna units, a radio frequency transceiving link, a control unit and a comparator; wherein:
the yagi antenna units are used for receiving signals, and each pair of the yagi antenna units and the radio frequency switch which correspond to each other is connected with the yagi antenna units at one end and connected with the comparator through the radio frequency transceiving link at the other end; the at least two yagi antenna units correspond to different directions;
the comparator is in signal connection with the control unit and is used for comparing the signal strength received by the at least two yagi antenna units and sending the comparison result to the control unit;
and the control unit is used for receiving the comparison result sent by the comparator and controlling the radio frequency switch connected with the yagi antenna unit with the maximum signal intensity in the comparison result to be closed.
2. The antenna group of claim 1, wherein each yagi antenna element comprises: a first type director, an active vibrator and a reflector;
the first-type director, the active vibrator and the reflector are arranged on a PCB (printed Circuit Board) of the 5G mobile terminal; the reflector is connected with one end of the corresponding radio frequency switch.
3. The antenna group of claim 2,
each yagi antenna unit further comprises: a second type of director;
the second type of director is conductive metal and is arranged in the front shell of the mobile phone.
4. The antenna group of claim 3, wherein the second type of director is disposed in a front cover of the handset, comprising:
and an integrated structure formed by injection molding is arranged between the second type of director and the front shell of the mobile phone.
5. The antenna group of claim 3, wherein the director of the second type is embedded in the front cover of the handset.
6. The antenna group of claim 2, wherein the PCB comprises a routing layer, and at least one board body is disposed on each of two sides of the routing layer;
the board body on one side of the routing layer is provided with a hollow part for leaking out of the routing layer to form the first-type director, the active oscillator and the reflector.
7. The antenna group of claim 2, characterized in that the directors of the first type, the active dipoles and the reflectors have a microstrip line structure; the microstrip line structure is arranged at the end part of the PCB.
8. The antenna group of claim 2, characterized in that the directors of the first type comprise at least two directors.
9. The antenna group of claim 1, wherein the spacing between two adjacent yagi antenna elements is equal to or greater than one quarter of a wavelength of a received signal.
10. The antenna group of claim 2, wherein the PCB board is provided with at least one yagi antenna element in which the constituent elements are arranged in a first direction and at least one yagi antenna element in which the constituent elements are arranged in a second direction; the composition unit comprises an active array of the yagi antenna unit, a first-type director and a reflector;
the included angle between the first direction and the second direction is smaller than a right angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910395156.7A CN110148830B (en) | 2019-05-13 | 2019-05-13 | Antenna group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395156.7A CN110148830B (en) | 2019-05-13 | 2019-05-13 | Antenna group |
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| CN110148830A CN110148830A (en) | 2019-08-20 |
| CN110148830B true CN110148830B (en) | 2021-08-17 |
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| CN201910395156.7A Active CN110148830B (en) | 2019-05-13 | 2019-05-13 | Antenna group |
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| CN111277314B (en) * | 2020-01-21 | 2023-12-19 | Oppo广东移动通信有限公司 | Antenna routing method and related device |
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| US9570809B2 (en) * | 2013-06-06 | 2017-02-14 | Qualcomm Incorporated | Techniques for designing millimeter wave printed dipole antennas |
| CN103414507A (en) * | 2013-07-26 | 2013-11-27 | 北京小米科技有限责任公司 | Mobile terminal and method and device for switching antennas of mobile terminal |
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| CN206962004U (en) * | 2016-04-26 | 2018-02-02 | 苹果公司 | Device and electronic equipment including phased antenna array |
| CN208570910U (en) * | 2018-06-15 | 2019-03-01 | 深圳市信维通信股份有限公司 | Dual polarization millimeter wave antenna system and mobile terminal suitable for 5G communication |
| CN208385608U (en) * | 2018-07-20 | 2019-01-15 | Oppo广东移动通信有限公司 | Electronic equipment |
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