CN112201950B - High gain antenna array and high gain antenna array configuration - Google Patents
High gain antenna array and high gain antenna array configuration Download PDFInfo
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- CN112201950B CN112201950B CN202010993557.5A CN202010993557A CN112201950B CN 112201950 B CN112201950 B CN 112201950B CN 202010993557 A CN202010993557 A CN 202010993557A CN 112201950 B CN112201950 B CN 112201950B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q19/10—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or 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
- H01Q25/04—Multimode antennas
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Abstract
The invention discloses a high-gain antenna array and a configuration thereof, which comprise a substrate, a first antenna, a first arm, a second antenna, a second arm and a metal plate, wherein the first antenna and the second antenna are arranged on the upper surface of the substrate, and a ground plane is arranged on the lower surface of the substrate. The first arm is connected with the first diode and the first extension section, the first diode is connected with the ground plane through the first diode and is in a straight line with the right side edge of the ground plane, the first extension section is connected with the ground plane through the first capacitor, the first antenna is positioned between the first arm and the second antenna, the second arm is connected with the second diode and the second extension section, the second diode is connected with the ground plane through the second diode and is in a straight line with the left side edge of the ground plane, the second extension section is connected with the ground plane through the second capacitor, the second antenna is positioned between the second arm and the first antenna, the metal plate and the ground plane are grounded together, the area of the metal plate is larger than that of the ground plane, and the metal plate is arranged below the substrate in parallel and keeps a distance. The switching of three radiation field type states is achieved according to the conducting states of the first diode and the second diode.
Description
Technical Field
The present invention relates to an antenna array, and more particularly, to a high gain antenna array and a high gain antenna array configuration.
Background
The radiation pattern of a single antenna differs according to the basic working principle of the antenna, and various radiation patterns have different applications, and in order to achieve the effects of multiple radiation patterns and high gain, more than two antennas are usually used and combined into an array, that is, an antenna array.
Generally, although antenna arrays are used to control a specific radiation pattern, the antenna arrays require complex control circuits (including switches, phase control, and feed networks). The conventional antenna array design uses multiple switches and feed networks, which also take into account the transmission loss in addition to the signal phase. Particularly, in the case of the conventional electronic device requiring the antenna to be light, thin, short and small, if high gain and switching operation of multiple radiation patterns are to be provided at the same time, it is conventionally necessary to introduce a complex signal feeding network (including phase switching) for multiple antenna units, so that the manufacturing cost of the antenna array product is difficult to reduce.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a high-gain antenna array and a high-gain antenna array configuration, which have high gain and can realize switching operation of multiple radiation patterns while keeping the antenna array compact and light.
The technical scheme of the invention is that the high-gain antenna array comprises:
the antenna comprises a substrate, a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a seventh antenna, a sixth antenna, a seventh antenna, a sixth, a seventh, a sixth, a seventh, a sixth, a sixth, a;
the first antenna is arranged on the upper surface;
the first arm is connected with the ground plane through the first diode, and the first extension section is connected with the ground plane through a first capacitor, wherein the first arm and the right side edge of the ground plane are in a straight line;
a second antenna disposed on the upper surface, wherein the first antenna is located between the first arm and the second antenna;
a second arm connecting a second diode and a second extension section, the second arm being connected to the ground plane through the second diode, and the second extension section being connected to the ground plane through a second capacitor, wherein the second arm and a left side of the ground plane are in a straight line, and wherein the second antenna is located between the second arm and the first antenna; and
the metal plate is positioned below the substrate and is grounded with the ground plane, the area of the metal plate is larger than that of the ground plane, and the metal plate is parallel to the substrate and keeps a distance with the substrate;
and the high-gain antenna array has three switching radiation field states according to the conducting states of the first diode and the second diode.
The feed-in circuit is connected with the first antenna and the second antenna and used for providing a phase-difference-free signal to be fed into the first antenna and the second antenna.
Further, when the first diode is conducted, the first arm forms a quarter-wavelength reflector; when the second diode is turned on, the second arm constitutes a quarter-wavelength reflector.
Furthermore, the upward direction of the substrate is a positive Z-axis direction, and the metal plate and the ground plane are used for shifting the radiation pattern of the high-gain antenna array towards the positive Z-axis direction so as to improve the antenna gain; wherein the radiation pattern is further shifted towards the left side when the first diode is conducting and the second diode is non-conducting; wherein the radiation pattern is further shifted towards the right side when the first diode is non-conductive and the second diode is conductive.
Further, the first extension segment is located between the first arm and the first antenna, and the second extension segment is located between the second arm and the second antenna.
A high-gain antenna array configuration comprises two high-gain antenna arrays, namely a first high-gain antenna array and a second high-gain antenna array, wherein the first high-gain antenna array and the second high-gain antenna array are horizontally adjacent to each other and are arranged with a phase difference angle larger than or equal to a 90-degree included angle.
Further, the first high-gain antenna array and the second high-gain antenna array are arranged with each other with a difference angle equal to a 90-degree included angle to form a dual-polarization configuration.
Furthermore, the first high-gain antenna array and the second high-gain antenna array are arranged with a phase difference angle equal to 180 degrees, and are horizontally arranged back to form a single polarization configuration.
Further, the first high-gain antenna array and the second high-gain antenna array form a first antenna group, the high-gain antenna array configuration further includes a second antenna group, the second antenna group is the same as the first antenna group, and the first antenna group and the second antenna group are configured to be adjacent to each other in the same direction and horizontally.
Further, the second antenna group includes two high-gain antenna arrays, namely a third high-gain antenna array and a fourth high-gain antenna array, where the third high-gain antenna array is adjacent to the first high-gain antenna array, and the fourth high-gain antenna array is adjacent to the second high-gain antenna array.
The technical scheme provided by the invention has the advantages that three switchable high-gain radiation field types can be realized without phase control on the feed-in signal, the antenna gain is improved by utilizing the reflection effect formed by the metal plate and the ground plane together, and the three radiation field types are converted by using the switching of the diode. The antenna array group is simple in circuit configuration, a single-polarization antenna array group or a dual-polarization antenna array group configured by a plurality of high-gain antenna arrays can be easily formed, high gain with high stability is achieved no matter in single-polarization or dual-polarization application, the technical effect that field type switching control is easy is achieved, and the antenna array group has high industrial application value with stable performance and simple circuits.
Drawings
Fig. 1 is a schematic perspective view of a high-gain antenna array according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of three radiation patterns of the high-gain antenna array according to the embodiment of the invention.
Fig. 3 is a schematic perspective view of a high-gain antenna array configuration according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a high-gain antenna array configuration according to another embodiment of the present invention.
Fig. 5 is a schematic perspective view of a high-gain antenna array configuration according to another embodiment of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.
Referring to fig. 1, fig. 1 is a schematic perspective view of a high-gain antenna array according to an embodiment of the present invention. The high gain antenna array comprises a substrate 1, a first antenna 2, a first arm 3, a second antenna 4, a second arm 5 and a metal plate 6. The substrate 1 has an upper surface 11 and a lower surface 12, the lower surface 12 is provided with a ground plane 121, the ground plane 121 has four sides, which are a front side 121a, a rear side 121b, a right side 121c and a left side 121d, respectively, wherein the front side 121a and the rear side 121b are parallel to each other, and the right side 121c and the left side 121d are parallel to each other, so that the ground plane 121 is rectangular or parallelogram, for example. The first antenna 2 is provided on the upper surface 11. The first arm 3 is connected to the first diode 31 and the first extension 32, the first arm 3 is connected to the ground plane 121 through the first diode 31, and the first extension 32 is connected to the ground plane 121 through the first capacitor 33, wherein the first arm 3 is aligned with the right side 121c of the ground plane 121. The second antenna 4 is provided on the upper surface 11, wherein the first antenna 2 is located between the first arm 3 and the second antenna 4. The second arm 5 is connected to the second diode 51 and the second extending section 52, the second arm 5 is connected to the ground plane 121 through the second diode 51, and the second extending section 52 is connected to the ground plane 121 through the second capacitor 53, wherein the second arm 5 and the left side 121d of the ground plane 121 form a straight line, and the second antenna 4 is located between the second arm 5 and the first antenna 2. The metal plate 6 is located below the substrate 1 and is grounded (commonly grounded) with the ground plane 121, the area of the metal plate 6 is larger than that of the ground plane 121, and the metal plate 6 is parallel to the substrate 1 and keeps a distance with the substrate 1. The high-gain antenna array has three radiation pattern states switched according to the conduction states of the first diode 31 and the second diode 51. The dc-conducting switch circuit of the first diode and 31 second diode 51 is omitted here, and the dc-conducting switch circuit is required to provide a conducting voltage greater than or equal to the diode and cooperate with the voltage switching function. In addition, preferably, according to the embodiment shown in fig. 1, the first extension 32 is located between the first arm 3 and the first antenna 2, and the second extension 52 is located between the second arm 5 and the second antenna 4. Furthermore, the spacing between the metal plate 6 and the substrate 1 is fixed by, for example, using a low-k baolilong material or a plastic material as a filling support, but not limited thereto.
Referring to fig. 1, in the feeding portion of the antenna, the feeding line 7 is connected to the first antenna 2 and the second antenna 4, and is used for providing a phase-difference-free signal from the feeding point F to feed the first antenna 2 and the second antenna 4, and it can be seen that the feeding line 7 is a microstrip line design. Preferably, the first antenna 2 is perpendicular to the front side 121a, the second antenna 4 is perpendicular to the front side 121a, the first antenna 2 and the second antenna 4 are arranged side by side, and the first antenna 2 and the second antenna 4 are monopole antennas, but not limited thereto. Preferably, the first arm 3, the first diode 31, the first extension 32, the first capacitor 33, the second arm 5, the second diode 51, the second extension 52 and the second capacitor 53 are all disposed on the lower surface 12 of the substrate 1, and the elements are disposed on the lower surface 12 conveniently so that the elements and the ground plane 121 can be directly connected on the lower surface 12 without using through holes (penetrating through the substrate 1). The first diode 31, the first capacitor 33, the second diode 51, and the second capacitor 53 are surface-mounted devices disposed on the bottom surface 12.
Referring to fig. 2, fig. 2 is a schematic diagram of three radiation patterns of the high-gain antenna array according to the embodiment of the present invention, wherein the operating frequency of the first antenna 2 and the second antenna 4 is 2.6GHz, but not limited thereto. In terms of three radiation patterns, the three patterns are divided into a zero pattern, a first pattern and a second pattern. The upward direction of the substrate 1 is the positive Z-axis (+ Z), and the metal plate 6 and the ground plane 121 are used to shift the radiation pattern of the high-gain antenna array toward the positive Z-axis for increasing the antenna gain. Mode zero: neither the first diode 31 nor the second diode 51 conduct and the direction in which the antenna gain is the greatest is in the positive Z-axis direction. The first mode is as follows: the first diode 31 is conductive and the second diode 51 is non-conductive. When the first diode 31 is switched on, the first arm 3 forms a quarter-wave reflector, and the direction of maximum antenna gain is corrected to be shifted towards the positive X axis (+ X). In other words, when the first diode 31 is turned on and the second diode 51 is turned off, the radiation pattern is further shifted toward the left side 121 d. And a second mode: the first diode 31 is non-conductive and the second diode 51 is conductive. When the second diode 51 is switched on, the second arm 5 forms a quarter-wave reflector, and the direction of maximum antenna gain is corrected to be shifted towards the negative X axis (-X). In other words, when the first diode 31 is not turned on and the second diode 51 is turned on, the radiation pattern is further shifted toward the right side 121 c.
Referring to fig. 3 and 4, an embodiment of the present invention also provides a high-gain antenna array configuration, which includes two high-gain antenna arrays as described above, namely a first high-gain antenna array 811 and a second high-gain antenna array 812, wherein the first high-gain antenna array 811 and the second high-gain antenna array 812 are horizontally adjacent to each other and are disposed with a difference angle greater than or equal to a 90-degree included angle. In the embodiment of fig. 3, the first high-gain antenna array 811 and the second high-gain antenna array 812 are horizontally adjacent to each other and are disposed at an angle different from each other by an angle of 180 degrees to form a single polarization configuration. That is, the first high-gain antenna array 811 and the second high-gain antenna array 812 are horizontally disposed back-to-back to form a single polarization configuration, which has the advantage of further adjusting the radiation pattern compared to a single high-gain antenna, for example, adjusting the distance between the first high-gain antenna array 811 and the second high-gain antenna array 812 can change the maximum gain and the beam shape of the main beam. In the embodiment of fig. 4, the first high-gain antenna array 811 and the second high-gain antenna array 812 are disposed at an angle equal to an included angle of 90 degrees, so as to form a dual-polarization configuration, thereby implementing a dual-polarization configuration scheme with an adjustable radiation pattern.
Referring to fig. 5, the first high-gain antenna array 811 and the second high-gain antenna array 812 may form a first antenna group 810, the high-gain antenna array configuration of fig. 5 further includes a second antenna group 820, the second antenna group 820 is the same as the first antenna group 810, and the first antenna group 810 and the second antenna group 820 are configured to be adjacent to each other in the same direction and horizontally. The second antenna group 820 includes two high-gain antenna arrays as described in the previous embodiments, namely a third high-gain antenna array 821 and a fourth high-gain antenna array 822, the third high-gain antenna array 821 is adjacent to the first high-gain antenna array 811, and the fourth high-gain antenna array 822 is adjacent to the second high-gain antenna array 812, so as to implement the configuration of four high-gain antenna arrays.
In summary, the high-gain antenna array and the high-gain antenna array configuration provided in the embodiments of the present invention can realize three switchable high-gain radiation patterns without performing phase control on the fed signal, improve the antenna gain by using the reflection effect formed by the metal plate and the ground plane, and achieve three radiation pattern conversions by using the switching of the diode. The antenna array group is simple in circuit configuration, a single-polarization antenna array group or a dual-polarization antenna array group configured by a plurality of high-gain antenna arrays can be easily formed, high gain with high stability is achieved no matter in single-polarization or dual-polarization application, the technical effect that field type switching control is easy is achieved, and the antenna array group has high industrial application value with stable performance and simple circuits.
Claims (10)
1. A high gain antenna array, comprising:
the antenna comprises a substrate, a first antenna, a second antenna, a third antenna, a fourth antenna, a fifth antenna, a sixth antenna, a seventh antenna, a sixth antenna, a seventh antenna, a sixth, a seventh, a sixth, a seventh, a sixth, a sixth, a;
the first antenna is arranged on the upper surface;
the first arm is connected with the ground plane through the first diode, and the first extension section is connected with the ground plane through a first capacitor, wherein the first arm and the right side edge of the ground plane are in a straight line;
a second antenna disposed on the upper surface, wherein the first antenna is located between the first arm and the second antenna;
a second arm connecting a second diode and a second extension section, the second arm being connected to the ground plane through the second diode, and the second extension section being connected to the ground plane through a second capacitor, wherein the second arm and a left side of the ground plane are in a straight line, and wherein the second antenna is located between the second arm and the first antenna; and
the metal plate is positioned below the substrate and is grounded with the ground plane, the area of the metal plate is larger than that of the ground plane, and the metal plate is parallel to the substrate and keeps a distance with the substrate;
and the high-gain antenna array has three switching radiation field states according to the conducting states of the first diode and the second diode.
2. A high gain antenna array as claimed in claim 1, comprising a feeding line connecting the first antenna and the second antenna for providing a phase-difference-free signal to feed to the first antenna and the second antenna.
3. The high gain antenna array of claim 1, wherein the first arm forms a quarter wave reflector when the first diode is on; when the second diode is turned on, the second arm constitutes a quarter-wavelength reflector.
4. The high-gain antenna array as claimed in claim 3, wherein the upward direction of the substrate is a positive Z-axis direction, and the metal plate and the ground plane are used to shift the radiation pattern of the high-gain antenna array towards the positive Z-axis direction for increasing the antenna gain; wherein the radiation pattern is further shifted towards the left side when the first diode is conducting and the second diode is non-conducting; wherein the radiation pattern is further shifted towards the right side when the first diode is non-conductive and the second diode is conductive.
5. The high gain antenna array of claim 1, wherein the first extension is located between the first arm and the first antenna and the second extension is located between the second arm and the second antenna.
6. A high gain antenna array configuration comprising two high gain antenna arrays according to claim 1, a first high gain antenna array and a second high gain antenna array, wherein the first high gain antenna array and the second high gain antenna array are horizontally adjacent to each other and are disposed with a difference angle greater than or equal to 90 degrees.
7. The high-gain antenna array configuration of claim 6, wherein the first high-gain antenna array and the second high-gain antenna array are disposed at an angle equal to a 90 degree included angle with respect to each other to form a dual-polarized configuration.
8. The high-gain antenna array configuration of claim 6, wherein the first high-gain antenna array and the second high-gain antenna array are disposed at an angle equal to 180 degrees from each other and are disposed horizontally back-to-back to form a single-polarization configuration.
9. The high-gain antenna array configuration of claim 8, wherein the first high-gain antenna array and the second high-gain antenna array form a first antenna group, the high-gain antenna array configuration further comprises a second antenna group, the second antenna group is the same as the first antenna group, and the first antenna group and the second antenna group are configured to be adjacent to each other in a same direction and horizontally.
10. A high gain antenna array configuration according to claim 9, wherein the second antenna group comprises two high gain antenna arrays as defined in claim 1, a third high gain antenna array and a fourth high gain antenna array, respectively, the third high gain antenna array being adjacent to the first high gain antenna array and the fourth high gain antenna array being adjacent to the second high gain antenna array.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993557.5A CN112201950B (en) | 2020-09-21 | 2020-09-21 | High gain antenna array and high gain antenna array configuration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010993557.5A CN112201950B (en) | 2020-09-21 | 2020-09-21 | High gain antenna array and high gain antenna array configuration |
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| CN112201950A CN112201950A (en) | 2021-01-08 |
| CN112201950B true CN112201950B (en) | 2022-08-16 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011052409A (en) * | 2009-08-31 | 2011-03-17 | Sumitomo Forestry Co Ltd | Mounting structure for tip cutting blade of steel pipe pile |
| TW201622250A (en) * | 2014-12-10 | 2016-06-16 | 國巨股份有限公司 | A dual-polarized antenna and array antenna having the same |
| CN106129613A (en) * | 2016-08-23 | 2016-11-16 | 常熟市泓博通讯技术股份有限公司 | The antenna structure of adjustable radiation field pattern |
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2020
- 2020-09-21 CN CN202010993557.5A patent/CN112201950B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011052409A (en) * | 2009-08-31 | 2011-03-17 | Sumitomo Forestry Co Ltd | Mounting structure for tip cutting blade of steel pipe pile |
| TW201622250A (en) * | 2014-12-10 | 2016-06-16 | 國巨股份有限公司 | A dual-polarized antenna and array antenna having the same |
| CN106129613A (en) * | 2016-08-23 | 2016-11-16 | 常熟市泓博通讯技术股份有限公司 | The antenna structure of adjustable radiation field pattern |
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| CN112201950A (en) | 2021-01-08 |
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