CN112117544A - Low cross polarization ultra wide band low-profile dual polarized antenna - Google Patents
Low cross polarization ultra wide band low-profile dual polarized antenna Download PDFInfo
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- CN112117544A CN112117544A CN202010482222.7A CN202010482222A CN112117544A CN 112117544 A CN112117544 A CN 112117544A CN 202010482222 A CN202010482222 A CN 202010482222A CN 112117544 A CN112117544 A CN 112117544A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
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Abstract
The invention provides a low cross polarization ultra wide band low section dual polarized antenna, comprising: the antenna comprises an antenna radiation unit (1), an antenna feed unit (2) and an antenna reflection unit (3); wherein: the antenna radiation element (1) further comprises: a first radiation surface (11), a second radiation surface (12), a first base material (13), a parasitic radiation surface (14) and a feed connection port (15); the antenna feed unit (2) further comprising: a first differential feeding circuit (21), a second differential feeding circuit (22) and a feeding probe group (23); the antenna reflection unit (3) further comprises: a second substrate (31) and a reflective surface (32), the first differential feed circuit (21) and the second differential feed circuit (22) being disposed on a first side of the second substrate (31); the reflective surface (32) is located on a second side of the second substrate (31).
Description
Technical Field
The invention relates to the field of base station antennas and radio frequency communication, in particular to a low cross polarization ultra wide band low-profile dual-polarized antenna.
Background
With the rapid development of radio frequency communication, the requirements of radio frequency communication are also constantly changing, and the base station antenna is used as a "door" of radio frequency communication, which is lighter in weight and lower in height, and has wider bandwidth in performance, and needs cross polarization as low as possible. (in order to improve communication efficiency, the base station antenna adopts a dual-polarization antenna form as much as possible, the radiation of any polarization can generate main polarization radiation and cross polarization radiation, the main polarization radiation and the cross polarization radiation are perpendicular to each other, the cross polarization radiation is increased, the main polarization radiation is reduced, the main polarization radiation is used for communication coverage, the cross polarization radiation is inevitable and is not needed for communication, the cross polarization of any polarization is necessarily fallen in the main polarization direction of the other polarization, interference can be generated, unnecessary fading is caused, therefore, in order to ensure the communication quality of the base station, the cross polarization needs to be strictly controlled, and the lower the cross polarization is better theoretically.)
At present, the existing dual-polarized base station antenna applied to radio frequency communication in the market can be an ultra-wideband dipole PCB antenna like the traditional +/-45-degree dipole antenna, but is difficult to achieve a low profile, troublesome to assemble and high in cost; the antenna can be made into a low-profile patch antenna, but the ultra-wideband is difficult to achieve, the same requirement of a wideband can be met only by two or more different antennas, the later communication upgrade is greatly limited, the utilization rate of precious resources of frequency spectrum is reduced, and the cost is doubled; the ultra-wideband dual-polarized antenna can be used as a low-profile dual-polarized antenna such as a multi-layer loading antenna, but the cross polarization level is high, the cross polarization ratio is low, the dual-polarized efficiency of the antenna is deteriorated, and the communication coverage is seriously affected. With the wide application of 5G, it is increasingly difficult for these conventional antennas to meet the communication requirements of the base station antenna, and the performance is more and more involved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a low cross polarization ultra wide band low-profile dual-polarized antenna. The technical scheme of the invention is as follows:
a low cross-polarization ultra-wideband low-profile dual-polarized antenna, comprising: the antenna comprises an antenna radiation unit (1), an antenna feed unit (2) and an antenna reflection unit (3); wherein:
the antenna radiation element (1) further comprises: a first radiation surface (11), a second radiation surface (12), a first base material (13), a parasitic radiation surface (14) and a feed connection port (15); the first radiation surface (11) and the second radiation surface (12) are distributed on the upper surface of the first base material (13); the parasitic radiation surface (14) is distributed on the lower surface of the first base material (13);
the first radiation surface (11) comprises four copper-clad surfaces which are completely the same in size and shape, and the four copper-clad surfaces are uniformly distributed in four corners of the first base material (13) and are separated from each other;
the second radiation surface (12) comprises four slotted surfaces with the same size and shape, each slotted surface corresponds to one copper-clad surface, and each slotted surface is positioned inside the copper-clad surface;
the parasitic radiation surface (14) comprises four copper-clad strips with the same size and shape, and each copper-clad strip is mutually separated, distributed along four sides of the lower surface of the first substrate (13) and parallel to the four sides;
four circular grooves are respectively formed in the regions, close to the inner sides, of the four copper-coated surfaces of the first radiation surface (11) along diagonal lines and are used as feed connectors (15); the first base material (13) is provided with round holes with the same size corresponding to the positions of the four round grooves respectively so as to penetrate through the first base material (13);
the antenna feed unit (2) further comprising: a first differential feeding circuit (21), a second differential feeding circuit (22) and a feeding probe group (23); the first differential feed circuit (21) and the second differential feed circuit (22) act together to form a +/-45-degree dual-polarized feed form;
p1 is the total inlet of the first differential feed circuit (21), and P11 and P12 are the branch outlets of the first differential feed circuit (21), respectively; p2 is the general inlet of the second differential feed circuit (22), and P21 and P22 are the branch outlets of the second differential feed circuit (22), respectively;
the feed probe group (23) comprises four round copper rods, one ends of the four round copper rods are respectively connected with P11, P12, P21 and P22, and the other ends of the four round copper rods are respectively connected with the antenna radiation unit (1) through a round hole formed in the first base material (13) and the feed connecting port (15);
the antenna reflection unit (3) further comprises: a second substrate (31) and a reflective surface (32), the first differential feed circuit (21) and the second differential feed circuit (22) being disposed on a first side of the second substrate (31); the reflective surface (32) is located on a second side of the second substrate (31).
Optionally, the four copper-coated faces of the first radiating face (11) present a diamond profile.
Optionally, the four grooved surfaces of the second radiating surface (12) present a diamond profile.
Optionally, the four copper-clad strips of the parasitic radiation surface (14) each present an isosceles trapezoid shape.
Optionally, the four copper-clad surfaces of the first radiation surface (11) are respectively scaled and machined into four grooved surfaces of the second radiation surface (12).
Optionally, each side of the first substrate (13) is correspondingly provided with a copper-clad strip and two copper-clad surfaces; the outermost edges of the copper-clad strips are positioned right below the outermost edges of the two copper-clad surfaces and are parallel to each other.
Optionally, the total length of the total inlet P1 to the branch outlet P11 and the total length of the total inlet P1 to the branch outlet P12 of the first differential feed circuit (21) differ by half a wavelength, so that the branch outlet P11 and the branch outlet P12 differ in phase by 180 °, together forming the first differential feed circuit (21);
the total length of the total inlet P2 to the branch outlet P21 and the total length of the total inlet P2 to the branch outlet P22 of the second differential feed circuit (22) differ by half a wavelength, so that the branch outlet P21 and the branch outlet P22 differ in phase by 180 °, together forming the second differential feed circuit (22).
Optionally, the total length from the total inlet P1 to the branch outlet P11 of the first differential feed circuit (21) and the total length from the total inlet P2 to the branch outlet P21 of the second differential feed circuit (22) are equal, and the total length from the total inlet P1 to the branch outlet P12 of the first differential feed circuit (21) and the total length from the total inlet P2 to the branch outlet P22 of the second differential feed circuit (22) are equal.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a low-cross-polarization ultra-wideband low-profile dual-polarized antenna covering 3300-.
The antenna adopts a probe-fed PCB form, has a lower section, is lighter in weight and is easy to install. The antenna has low cross polarization and high polarization purity, and can enhance the communication efficiency of the base station. And because of covering ultra-wide frequency bands, the antenna can integrate the antennas with a plurality of frequency bands into one antenna, thereby effectively reducing the number of the antennas, reducing the cost of the antenna and having large-scale practical application value.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a distribution exploded view of a low cross-polarization ultra-wideband low-profile dual-polarized antenna according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an antenna radiation unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an antenna feed unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an antenna reflection unit according to an embodiment of the present invention;
FIG. 5 is a graph of the standing wave ratio of an antenna according to an embodiment of the present invention;
fig. 6 is a cross-polarization ratio diagram of an antenna according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1, the present embodiment discloses a low cross-polarization ultra-wideband low-profile dual-polarized antenna, which includes: the antenna comprises an antenna radiation unit 1, an antenna feed unit 2 and an antenna reflection unit 3; wherein:
as shown in fig. 2, the antenna radiation element 1 includes five parts, namely a first radiation surface 11, a second radiation surface 12, a first substrate 13, a parasitic radiation surface 14 and a feed connection port 15. The first radiation surface 11 is a main radiation layer of the antenna radiation unit 1, and the second radiation surface 12 is a secondary radiation layer of the antenna radiation unit 1 and is distributed on the upper surface of the first substrate 13; the parasitic radiation surface 14 is an auxiliary radiation layer of the antenna radiation unit 1 and is distributed on the lower surface of the first substrate 13.
The first radiation surface 11 is a copper-clad surface and is composed of four copper-clad surfaces with the same size and shape, and the four copper-clad surfaces are uniformly distributed in four corners of the first base material 13 and are separated from each other to present a diamond shape; the second radiation surface 12 is a grooved surface, and the four copper-clad surfaces of the first radiation surface 11 are scaled and cut into the grooved surface, and the scaling ratio of 0.5-0.8 may be selected in this embodiment, which is only an example and is not limited thereto.
Correspondingly, the second radiation surface 12 is composed of four slotted surfaces with the same size and shape, and each slotted surface is uniformly distributed in four corners of the base material 13 and is separated from each other to present a diamond shape; the parasitic radiation surface 14 is formed by four long and narrow copper-clad strips with the same size and shape, and presents an isosceles trapezoid shape, and each strip is separated from each other and is parallel to the side of the first substrate 13.
Each side of the first base material 13 is correspondingly provided with a copper-clad strip and two copper-clad surfaces; the outermost edges of the copper-clad strips are positioned right below the outermost edges of the two copper-clad surfaces and are parallel to each other. It should be noted that: the outermost edge of the copper-clad strip refers to the edge of the copper-clad strip closest to the side edge of the corresponding first substrate 13; the outermost edges of the two copper-clad surfaces refer to the edges of the two copper-clad surfaces closest to the corresponding side edges of the first substrate 13.
The four copper-coated surfaces of the first radiation surface 11 are in a diamond shape, so that the current path can be effectively prolonged, and the main radiation bandwidth is increased. The four grooved surfaces of the second radiation surface 12 are in the shape of diamond, the radiation aperture is formed by using the current skin effect, and the high-frequency radiation bandwidth can be effectively increased due to the reduced aperture scaling. The parasitic radiation surface 14 is coupled to the first radiation surface 11 to generate parasitic radiation.
Four circular grooves are diagonally opened in the inner region of the first radiation surface 11 as power supply connection ports 15. The first base material 13 is provided with circular holes with the same size corresponding to the positions of the four circular grooves, so as to penetrate through the first base material 13.
As shown in fig. 3, the antenna feed unit 2 is constituted by a first differential feed circuit 21, a second differential feed circuit 22, and a feed probe group 23. The first differential feed circuit 21 and the second differential feed circuit 22 act together to form a ± 45 ° dual-polarized feed form. P1 is the total inlet of the first differential feed circuit 21, and P11 and P12 are the branch outlets of the first differential feed circuit 21, respectively. P2 is the general inlet of the second differential feed circuit 22, and P21 and P22 are the branch outlets of the second differential feed circuit 22, respectively.
The total length of the total inlet P1 to the branch outlet P11 and the total length of the total inlet P1 to the branch outlet P12 of the first differential feed circuit 21 differ by one half wavelength so that the branch outlet P11 and the branch outlet P12 differ in phase by 180 ° to collectively form the first differential feed circuit 21. Accordingly, the total length of the total inlet P2 to the branch outlet P21 and the total length of the total inlet P2 to the branch outlet P22 of the second differential feed circuit 22 differ by one-half wavelength, so that the branch outlet P21 and the branch outlet P22 differ in phase by 180 °, collectively forming the second differential feed circuit 22.
The total length from the total entrance P1 to the branch exit P11 of the first differential feed circuit 21 and the total length from the total entrance P2 to the branch exit P21 of the second differential feed circuit 22 are equal, and the total length from the total entrance P1 to the branch exit P12 of the first differential feed circuit 21 and the total length from the total entrance P2 to the branch exit P22 of the second differential feed circuit 22 are equal, so that the polarization purity is further improved.
The feed probe group 23 comprises four round copper rods with the same size and shape, one ends of the four round copper rods are respectively connected with the P11, the P12, the P21 and the P22, and the other ends of the four round copper rods are respectively connected with the antenna radiation unit 1 through a round hole formed in the first base material 13 and the feed connecting port 15; the method specifically comprises the following steps:
the ends of the feed probe 23 are welded to the branch outlet P11 and the branch outlet P12 of the first differential feed circuit 21 and the branch outlet P21 and the branch outlet P22 of the second differential feed circuit 22, and are connected to each other integrally.
The diameter of the round copper rod is matched with the size of the round groove of the feed connecting port 15, the top ends of the four round copper rods of the feed probe group 23 of the antenna feed unit 2 vertically penetrate through the first substrate 13 and the first radiation surface 11, and are welded at the feed connecting port 15 and communicated into a whole.
As shown in fig. 4, the antenna reflection unit 3 includes a second substrate 31 and a reflection surface 32, which together generate polarization orientation of the antenna. The second substrate 31 serves as a carrier plate for the first differential feed circuit 21 and the second differential feed circuit 22. The first and second differential feed circuits 21 and 22 are disposed on the first side of the second substrate 31; the reflecting surface 32 is located on the second side of the second substrate 31.
Compared with the prior art, the invention has the following advantages:
firstly, as shown in fig. 1, because the frequency band where the antenna is located is high, the area of the radiation surface is small, the distance from the radiation surface to the reflecting plate is short, the section is low, the feeding probe group 23 for four-point feeding not only plays a role of feeding, but also can play a role of supporting, the plastic support columns required conventionally are reduced, and the simplification is realized.
Secondly, as shown in fig. 1, fig. 3 and fig. 6, because of the communication requirements of the base station antenna, the cross polarization ratio of the ± 45 ° dual-polarized antenna is a key index, and the conventional loaded patch antenna is difficult to meet the requirements, but the size and position of the feed probe group 23 are adjusted by adopting the form of the first radiation surface 11, the second radiation surface 12 and the parasitic radiation surface 14, so that the cross polarization ratio can be greatly improved, low cross polarization is realized, and the communication requirements of the base station are met.
Thirdly, as shown in fig. 1, fig. 2 and fig. 5, because the antenna has low profile performance, the ultra-wideband is difficult to be achieved by the conventional four-point feeding bandwidth, but by adopting the form of the first radiation surface 11 and the second radiation surface 12, the diamond-shaped outer contour of each of the four surfaces of the first radiation surface 11 mainly excites the resonance of the low frequency band, the diamond-shaped outer contour of each of the four surfaces of the second radiation surface 12 complementarily excites the resonance of the high frequency band, the parasitic radiation surface 14 matches and adjusts the non-resonance point, so that the whole frequency band generates resonance, the antenna bandwidth is greatly widened, and the ultra-wideband performance is realized.
Through the comprehensive application of the three points, the antenna can also realize the performance of ultra wide band and high cross polarization ratio on the premise of realizing low profile and light weight, meets the communication requirement of the base station antenna, further reduces the cost and further simplifies the realization.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. A low cross polarization ultra wide band low profile dual polarized antenna, comprising: the antenna comprises an antenna radiation unit (1), an antenna feed unit (2) and an antenna reflection unit (3); wherein:
the antenna radiation element (1) further comprises: a first radiation surface (11), a second radiation surface (12), a first base material (13), a parasitic radiation surface (14) and a feed connection port (15); the first radiation surface (11) and the second radiation surface (12) are distributed on the upper surface of the first base material (13); the parasitic radiation surface (14) is distributed on the lower surface of the first base material (13);
the first radiation surface (11) comprises four copper-clad surfaces which are completely the same in size and shape, and the four copper-clad surfaces are uniformly distributed in four corners of the first base material (13) and are separated from each other;
the second radiation surface (12) comprises four slotted surfaces with the same size and shape, each slotted surface corresponds to one copper-clad surface, and each slotted surface is positioned inside the copper-clad surface;
the parasitic radiation surface (14) comprises four copper-clad strips with the same size and shape, and each copper-clad strip is mutually separated, distributed along four sides of the lower surface of the first substrate (13) and parallel to the four sides;
four circular grooves are respectively formed in the regions, close to the inner sides, of the four copper-coated surfaces of the first radiation surface (11) along diagonal lines and are used as feed connectors (15); the first base material (13) is provided with round holes with the same size corresponding to the positions of the four round grooves respectively so as to penetrate through the first base material (13);
the antenna feed unit (2) further comprising: a first differential feeding circuit (21), a second differential feeding circuit (22) and a feeding probe group (23); the first differential feed circuit (21) and the second differential feed circuit (22) act together to form a +/-45-degree dual-polarized feed form;
p1 is the total inlet of the first differential feed circuit (21), and P11 and P12 are the branch outlets of the first differential feed circuit (21), respectively; p2 is the general inlet of the second differential feed circuit (22), and P21 and P22 are the branch outlets of the second differential feed circuit (22), respectively;
the feed probe group (23) comprises four round copper rods, one ends of the four round copper rods are respectively connected with P11, P12, P21 and P22, and the other ends of the four round copper rods are respectively connected with the antenna radiation unit (1) through a round hole formed in the first base material (13) and the feed connecting port (15);
the antenna reflection unit (3) further comprises: a second substrate (31) and a reflective surface (32), the first differential feed circuit (21) and the second differential feed circuit (22) being disposed on a first side of the second substrate (31); the reflective surface (32) is located on a second side of the second substrate (31).
2. An antenna according to claim 1, characterized in that the four copper-coated faces of the first radiating face (11) present a diamond profile.
3. The antenna according to claim 1 or 2, characterized in that the four grooved surfaces of said second radiating surface (12) present a diamond profile.
4. An antenna according to claim 1, characterized in that the four copper strips of the parasitic radiating surface (14) each present an isosceles trapezium shape.
5. An antenna according to claim 1, characterized in that the four grooved surfaces cut into the second radiating surface (12) are obtained by scaling and machining the four copper-clad surfaces of the first radiating surface (11) respectively.
6. The antenna of claim 1,
each side of the first base material (13) is correspondingly provided with a copper-clad strip and two copper-clad surfaces; the outermost edges of the copper-clad strips are positioned right below the outermost edges of the two copper-clad surfaces and are parallel to each other.
7. The antenna of claim 1,
the total length of the total inlet P1 to the branch outlet P11 and the total length of the total inlet P1 to the branch outlet P12 of the first differential feed circuit (21) differ by half a wavelength, so that the branch outlet P11 and the branch outlet P12 differ in phase by 180 °, together forming the first differential feed circuit (21);
the total length of the total inlet P2 to the branch outlet P21 and the total length of the total inlet P2 to the branch outlet P22 of the second differential feed circuit (22) differ by half a wavelength, so that the branch outlet P21 and the branch outlet P22 differ in phase by 180 °, together forming the second differential feed circuit (22).
8. The antenna of claim 7,
the total length from the total inlet P1 to the branch outlet P11 of the first differential feeder circuit (21) and the total length from the total inlet P2 to the branch outlet P21 of the second differential feeder circuit (22) are equal, and the total length from the total inlet P1 to the branch outlet P12 of the first differential feeder circuit (21) and the total length from the total inlet P2 to the branch outlet P22 of the second differential feeder circuit (22) are equal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482222.7A CN112117544A (en) | 2020-05-29 | 2020-05-29 | Low cross polarization ultra wide band low-profile dual polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482222.7A CN112117544A (en) | 2020-05-29 | 2020-05-29 | Low cross polarization ultra wide band low-profile dual polarized antenna |
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| CN112117544A true CN112117544A (en) | 2020-12-22 |
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| CN202010482222.7A Pending CN112117544A (en) | 2020-05-29 | 2020-05-29 | Low cross polarization ultra wide band low-profile dual polarized antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768898A (en) * | 2020-12-29 | 2021-05-07 | 京信通信技术(广州)有限公司 | Broadband low-profile antenna unit and dual-polarized array antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205282641U (en) * | 2015-12-23 | 2016-06-01 | 安谱络(苏州)通讯技术有限公司 | Novel antenna radiation unit |
| CN205335424U (en) * | 2016-01-27 | 2016-06-22 | 上海安费诺永亿通讯电子有限公司 | Low section dual polarized antenna |
| CN108134197A (en) * | 2017-12-26 | 2018-06-08 | 上海安费诺永亿通讯电子有限公司 | Integrated 4 differential feed low section dual polarization vibrator units and antenna for base station |
| CN110336126A (en) * | 2019-06-30 | 2019-10-15 | 瑞声科技(新加坡)有限公司 | Oscillator device and low profile antenna |
-
2020
- 2020-05-29 CN CN202010482222.7A patent/CN112117544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205282641U (en) * | 2015-12-23 | 2016-06-01 | 安谱络(苏州)通讯技术有限公司 | Novel antenna radiation unit |
| CN205335424U (en) * | 2016-01-27 | 2016-06-22 | 上海安费诺永亿通讯电子有限公司 | Low section dual polarized antenna |
| CN108134197A (en) * | 2017-12-26 | 2018-06-08 | 上海安费诺永亿通讯电子有限公司 | Integrated 4 differential feed low section dual polarization vibrator units and antenna for base station |
| CN110336126A (en) * | 2019-06-30 | 2019-10-15 | 瑞声科技(新加坡)有限公司 | Oscillator device and low profile antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768898A (en) * | 2020-12-29 | 2021-05-07 | 京信通信技术(广州)有限公司 | Broadband low-profile antenna unit and dual-polarized array antenna |
| CN112768898B (en) * | 2020-12-29 | 2022-08-02 | 京信通信技术(广州)有限公司 | Broadband low-profile antenna unit and dual-polarized array antenna |
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