CN111817002A - Low-profile radiating element and small base station antenna - Google Patents
Low-profile radiating element and small base station antenna Download PDFInfo
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- CN111817002A CN111817002A CN202010685007.7A CN202010685007A CN111817002A CN 111817002 A CN111817002 A CN 111817002A CN 202010685007 A CN202010685007 A CN 202010685007A CN 111817002 A CN111817002 A CN 111817002A
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- 239000000758 substrate Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims description 19
- 230000013011 mating Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 241000219793 Trifolium Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01Q1/12—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
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides a low-profile radiating unit, which comprises a dielectric substrate, a radiating body and a feed balun; the radiator comprises two dipoles which are distributed orthogonally and are respectively distributed and placed in the +/-45-degree direction of the dielectric substrate; the feed balun is in an orthogonal structure, the bottom of the feed balun is connected with a feed network, the top of the feed balun is connected with the radiating body, and each dipole is fed through a feed probe in a coupling mode. The invention also provides a small base station antenna comprising the low-profile radiating element. Therefore, the broadband low-profile radiating antenna can realize broadband low-profile design of the radiating unit while ensuring the performance of the antenna, thereby achieving the purpose of miniaturization of the size of the antenna.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a low-profile radiating unit and a small base station antenna.
Background
The base station is the air interface for the user to connect with the network in the mobile communication system, and is therefore one of the most critical components of the system, and directly determines the coverage of the mobile communication network and the quality of signal transmission. The base station can be divided into an outdoor large macro base station antenna and a small base station antenna according to an application scene; the macro base station antenna has the characteristics of wide frequency band, multiple radiation units, high gain and large power capacity, and is suitable for large-range and sparse user scenes. The small-sized base station antenna has the characteristics of narrow frequency band, less radiating elements, lower gain and smaller power capacity, and is suitable for local blind-patch coverage or dense-user area coverage.
With the development of wireless communication, the demand of users for high-speed data services continues to increase, and most data communication is performed in indoor situations. Only the macro base station is built and is difficult to meet the requirements of a large number of users, the coverage depth of the macro base station is insufficient, especially at the edge of a cell, the signal intensity is obviously weakened, the signal-to-noise ratio of a link is reduced, and the user experience is reduced. The development of small base station antennas is necessary and important in the context of the dense deployment of small versions of macro base station antennas that can be seen as leading to buildings.
The radiating element, one of the key components of a base station antenna, plays a crucial role in the entire mobile communication network. In the prior art, a radiating element of an antenna generally realizes feeding of a feed balun to an oscillator by welding a feed sheet, and the radiating element has the defects of complex structure and high cost. Under the limited antenna surface resources at present, the antenna puts higher requirements on the size of the radiating element, the size of the radiating element is generally reduced as much as possible while the performance of the antenna is ensured, and in order to strictly control the weight and the size of the antenna, the miniaturization design of the base station antenna has become the mainstream trend of the current industry development.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a low-profile radiating element and a small-sized base station antenna, which can achieve broadband low-profile design of the radiating element while ensuring antenna performance, thereby achieving the purpose of antenna size miniaturization.
In order to achieve the above object, the present invention provides a low-profile radiating element, including a dielectric substrate, a radiator and a feed balun; the radiator comprises two dipoles which are distributed orthogonally and are respectively distributed and placed in the +/-45-degree direction of the dielectric substrate; the feed balun is in an orthogonal structure, the bottom of the feed balun is connected with a feed network, the top of the feed balun is connected with the radiating body, and each dipole is fed through a feed probe in a coupling mode.
According to the low-profile radiating element, the radiator is composed of four radiating arms, and the radiating arms are leaf-shaped.
According to the low-profile radiation unit, the side length of the caliber of the radiation surface of the radiator is 0.3-0.35 lambda; and/or
The current path of the radiating arm is 0.25 lambda;
and the lambda is the wavelength of the working frequency band of the low-profile radiating unit.
According to the low-profile radiating element, the impedance characteristics of the feed balun are optimized through impedance matching.
The low-profile radiating unit also comprises a grounding sheet;
the feed balun is composed of two orthogonally combined circuit boards, each circuit board comprises a dielectric sheet, the front surface of each dielectric sheet is distributed with a bent and deformed feed circuit, and the back surface of each dielectric sheet is covered with a ground; the bottom of the feed circuit is connected with the feed network, the bottom of the ground of the feed circuit is connected with the grounding plate, and the top of the ground is connected to the feed position of the radiator.
According to the low-profile radiating element, the length of the feed balun is 0.125 lambda; and the lambda is the wavelength of the working frequency band of the low-profile radiating unit.
According to the low-profile radiation unit, the circuit board comprises a first circuit board and a second circuit board, a first embedding groove is formed in the first circuit board, and a second embedding groove is formed in the second circuit board; the first circuit board and the second circuit board are mutually embedded into an orthogonal structure through the first embedding groove and the second embedding groove respectively.
According to the low-profile radiating unit, the top of the first circuit board is provided with at least two first upper protruding pieces, the top of the second circuit board is provided with at least two second upper protruding pieces, the radiating body is correspondingly provided with at least four upper slots, and the first circuit board and the second circuit board are respectively clamped at the upper slots of the radiating body through the first upper protruding pieces and the second upper protruding pieces;
the bottom of the first circuit board is provided with at least two first lower protruding pieces; the bottom of second circuit board is equipped with two at least second lower lugs, the ground lug corresponds and is equipped with four at least lower flutings, first circuit board with the second circuit board respectively through first lug and second lower lug joint in the lower fluting department of ground lug.
The invention also provides a small base station antenna which comprises a reflecting plate, wherein a plurality of low-profile radiating elements are distributed on the reflecting plate.
According to the small-sized base station antenna, the low-profile radiation units form at least one line of linear arrays which are distributed on the reflecting plate, the distance between the adjacent low-profile radiation units is 0.8-1 lambda, and the lambda is the wavelength of the working frequency band of the low-profile radiation units.
The low-profile radiating unit comprises a dielectric substrate, a radiating body and a feed balun, wherein the radiating body comprises two orthogonally distributed dipoles which are respectively distributed and placed in the +/-45-degree direction of the dielectric substrate to form a dual-polarized radiating unit. The feed balun is in an orthogonal structure, the top of the feed balun is connected with the radiator, and each dipole is fed through the feed probe in a coupling mode. Therefore, the invention reduces the section of the radiating element by adopting a coupling feed mode and a deformation feed balun mode, can realize the broadband low-section design of the radiating element while ensuring the performance of the antenna, and further achieves the purpose of miniaturization of the antenna size. Preferably, the radiator is composed of four leaf-shaped radiating arms, and the leaf-shaped circuit can enable the radiating unit to meet the electrical size required by excitation under a small caliber, so that the section of the radiating unit can be further reduced. Preferably, the impedance characteristics of the feed balun are optimized through impedance matching, so that the problem of impedance characteristic deterioration caused by the reduction of the section of the radiating element can be avoided.
Drawings
FIG. 1 is a perspective view of a preferred low profile radiating element of the present invention;
FIG. 2 is a schematic plan view of a preferred low profile radiating element of the present invention;
fig. 3 is a schematic plan view of a radiator of a preferred low-profile radiating element of the present invention;
fig. 4A is a perspective view of the feed balun of the preferred low-profile radiating element of the present invention;
FIG. 4B is a horizontal schematic of the first wiring board of the preferred feed balun of the present invention;
FIG. 4C is a horizontal schematic of the second wiring board of the preferred feed balun of the present invention;
FIG. 5 is a perspective view of a preferred small base station antenna of the present invention;
figure 6 is a horizontal schematic view of a preferred small base station antenna of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that references in the specification to "one embodiment," "an example embodiment," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not intended to refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
Moreover, where certain terms are used throughout the description and following claims to refer to particular components or features, those skilled in the art will understand that manufacturers may refer to a component or feature by different names or terms. This specification and the claims that follow do not intend to distinguish between components or features that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. In addition, the term "connected" as used herein includes any direct and indirect electrical connection. Indirect electrical connection means include connection by other means.
Fig. 1 to 4 show a preferred structure of a low-profile radiating element 100 according to the present invention, where the low-profile radiating element 100 at least includes a dielectric substrate 10, a radiator 20 located on the dielectric substrate 10, and a feeding balun 30. The radiator 20 includes two orthogonally distributed dipoles, which are respectively distributed in the ± 45 ° direction of the dielectric substrate 10 to form ± 45 ° two polarizations, thereby forming a dual-polarized radiation unit. The feed balun 30 is in an orthogonal structure, the bottom of the feed balun 30 is connected with a feed network, the top of the feed balun 30 is connected with the radiator 20, and each dipole is fed by a feed probe in a coupling mode.
The existing radiating unit needs to place a metal reflecting plate at a position 0.25 lambda away from a radiator (or vibrator), and meanwhile, the size of the antenna is limited by the height of 0.25 lambda through feeding balun between the radiator and a grounding plate. The invention provides a wide-band low-profile dual-polarized radiating unit, which reduces the profile height of the radiating unit by adopting a coupling feed mode and a deformation feed balun mode, thereby effectively realizing the goal of antenna miniaturization.
The conventional radiating element has a deteriorated impedance characteristic due to the requirement of balanced feeding after the height of the radiating surface is reduced. Preferably, the feeding balun 30 optimizes the impedance characteristics by impedance matching, thereby avoiding the problem of deterioration of the impedance characteristics.
Preferably, the length of the feeding balun 30 is about 0.125 λ, which is the wavelength of the operating frequency band of the low-profile radiating element 100. The length of the existing feed balun is about 0.25 lambda, and the section of the radiating element can be reduced due to the reduction of the length of the feed balun.
Fig. 3 shows the structure of the radiator of the preferred low-profile radiating element of the present invention, where the radiator 20 is a plane-centered symmetrical structure, and is composed of four radiating arms 21, the radiating arms 21 are in a leaf shape, that is, each leaf-shaped radiating arm 21 constitutes a dual-polarized radiating element, and the whole radiating element is in a clover shape, and the leaf-shaped circuit can make the radiating element meet the electrical size required for excitation with a small caliber. The current path of each radiation arm 21 is about 0.25 lambda, the current path of the radiation arm flows to the outer edge of the caliber, higher radiation field superposition gain can be obtained, the size of the mouth surface is reduced under the condition of the same gain, and the width size of a multi-row low-frequency antenna array can be effectively realized. Preferably, the side length of the aperture of the radiation surface of the radiator 20 is about 0.3 to 0.35 λ, where λ is the wavelength of the operating frequency band of the low-profile radiation unit 100.
As shown in fig. 1, the low-profile radiating element 100 further includes a ground patch 40. Fig. 4A to 4C show the structure of the feeding balun of the preferred low-profile radiating element of the present invention, the feeding balun 30 is composed of two orthogonally combined circuit boards 310 and 320, the circuit boards 310 and 320 respectively include a dielectric sheet 31, the front surface of the dielectric sheet 31 is distributed with a bent and deformed feeding line 32, and the back surface of the dielectric sheet 31 is covered with a ground 33. Preferably, the feeding line 32 is a microstrip line, and the length of the feeding balun 30 is about 0.125 λ. The bottom of the feed line 32 is connected to the feed network, the bottom of the ground plane 33 of the feed line 32 is connected to the ground pad 40, and the top of the ground plane 33 is connected to the feed of the radiator 20. Each dipole of the radiator 20 has a feeding balun 30, and the top of the feeding balun 30 feeds each dipole by coupling through a feeding probe.
Preferably, the circuit boards include a first circuit board 310 and a second circuit board 320, preferably a PCB circuit board. The first circuit board 310 is provided with a first fitting groove 311, and the second circuit board 320 is provided with a second fitting groove 321. The first circuit board 310 and the second circuit board 320 are respectively embedded into each other through the first embedding groove 311 and the second embedding groove 321 to form an orthogonal structure. The first wiring board 310 and the second wiring board 320 correspond to one dipole, respectively.
As shown in fig. 4B, at least two first upper protruding pieces 312 are disposed on the top of the first circuit board 310, at least two second upper protruding pieces 322 are disposed on the top of the second circuit board 320, at least four upper slots 22 are correspondingly disposed on the radiator 20, and the first circuit board 310 and the second circuit board 320 are respectively clamped to the upper slots 22 of the radiator 20 through the first upper protruding pieces 312 and the second upper protruding pieces 322, so as to implement the feeding connection.
As shown in fig. 4C, the bottom of the first circuit board 310 is provided with at least two first lower tabs 313. The bottom of the second circuit board 320 is provided with at least two second lower protruding pieces 323, the ground plate 40 is correspondingly provided with at least four lower slots 41, and the first circuit board 310 and the second circuit board 320 are respectively clamped at the lower slots 41 of the ground plate 40 through the first lower protruding pieces 313 and the second lower protruding pieces 323, so that connection between grounding and feeding is realized.
Fig. 5 to 6 show the structure of the small base station antenna 200 according to the preferred embodiment of the present invention, in which the small base station antenna 200 includes a reflector 300, and a plurality of low-profile radiation units 100 are distributed on the reflector 300. Preferably, the plurality of low-profile radiation units 100 form at least one row of linear arrays distributed on the reflection plate 300, each linear array at least comprises three low-profile radiation units 100, and the distance between adjacent low-profile radiation units 100 is about 0.8 to 1 λ, where λ is the wavelength of the operating frequency band of the low-profile radiation unit 100.
In summary, the low-profile radiating unit of the present invention includes a dielectric substrate, a radiator and a feed balun, where the radiator includes two orthogonally distributed dipoles that are respectively distributed in the ± 45 ° direction of the dielectric substrate to form a dual-polarized radiating unit. The feed balun is in an orthogonal structure, the top of the feed balun is connected with the radiator, and each dipole is fed through the feed probe in a coupling mode. Therefore, the invention reduces the section of the radiating element by adopting a coupling feed mode and a deformation feed balun mode, can realize the broadband low-section design of the radiating element while ensuring the performance of the antenna, and further achieves the purpose of miniaturization of the antenna size. Preferably, the radiator is composed of four leaf-shaped radiating arms, and the leaf-shaped circuit can enable the radiating unit to meet the electrical size required by excitation under a small caliber, so that the section of the radiating unit can be further reduced. Preferably, the impedance characteristics of the feed balun are optimized through impedance matching, so that the problem of impedance characteristic deterioration caused by the reduction of the section of the radiating element can be avoided.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A low-profile radiating element is characterized by comprising a dielectric substrate, a radiator and a feed balun; the radiator comprises two dipoles which are distributed orthogonally and are respectively distributed and placed in the +/-45-degree direction of the dielectric substrate; the feed balun is in an orthogonal structure, the bottom of the feed balun is connected with a feed network, the top of the feed balun is connected with the radiating body, and each dipole is fed through a feed probe in a coupling mode.
2. The low-profile radiating element of claim 1, wherein the radiator is comprised of four radiating arms, the radiating arms being leaf-shaped.
3. The low-profile radiating element of claim 2, wherein the side length of the aperture of the radiating surface of the radiator is 0.3-0.35 λ; and/or
The current path of the radiating arm is 0.25 lambda;
and the lambda is the wavelength of the working frequency band of the low-profile radiating unit.
4. The low-profile radiating element of claim 1, wherein the feed balun optimizes impedance characteristics by impedance matching.
5. The low profile radiating element of claim 1, further comprising a ground plate;
the feed balun is composed of two orthogonally combined circuit boards, each circuit board comprises a dielectric sheet, the front surface of each dielectric sheet is distributed with a bent and deformed feed circuit, and the back surface of each dielectric sheet is covered with a ground; the bottom of the feed circuit is connected with the feed network, the bottom of the ground of the feed circuit is connected with the grounding plate, and the top of the ground is connected to the feed position of the radiator.
6. The low-profile radiating element of claim 5, wherein the feed balun has a length of 0.125 λ; and the lambda is the wavelength of the working frequency band of the low-profile radiating unit.
7. The low profile radiating element of claim 5, wherein the circuit board comprises a first circuit board having a first mating groove and a second circuit board having a second mating groove; the first circuit board and the second circuit board are mutually embedded into an orthogonal structure through the first embedding groove and the second embedding groove respectively.
8. The low-profile radiating element of claim 7, wherein the top of the first circuit board is provided with at least two first upper protruding pieces, the top of the second circuit board is provided with at least two second upper protruding pieces, the radiator is correspondingly provided with at least four upper slots, and the first circuit board and the second circuit board are respectively clamped at the upper slots of the radiator through the first upper protruding pieces and the second upper protruding pieces;
the bottom of the first circuit board is provided with at least two first lower protruding pieces; the bottom of second circuit board is equipped with two at least second lower lugs, the ground lug corresponds and is equipped with four at least lower flutings, first circuit board with the second circuit board respectively through first lug and second lower lug joint in the lower fluting department of ground lug.
9. A small-sized base station antenna, comprising a reflection plate, wherein a plurality of low-profile radiation units as claimed in any one of claims 1 to 8 are distributed on the reflection plate.
10. The small-sized base station antenna according to claim 9, wherein a plurality of said low-profile radiating elements are arranged in at least one row on said reflector plate, and the distance between adjacent said low-profile radiating elements is 0.8-1 λ, said λ being the wavelength of the operating band of said low-profile radiating elements.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685007.7A CN111817002A (en) | 2020-07-16 | 2020-07-16 | Low-profile radiating element and small base station antenna |
| PCT/CN2021/073890 WO2022012022A1 (en) | 2020-07-16 | 2021-01-27 | Low-profile radiation unit and small base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685007.7A CN111817002A (en) | 2020-07-16 | 2020-07-16 | Low-profile radiating element and small base station antenna |
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| Publication Number | Publication Date |
|---|---|
| CN111817002A true CN111817002A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010685007.7A Pending CN111817002A (en) | 2020-07-16 | 2020-07-16 | Low-profile radiating element and small base station antenna |
Country Status (2)
| Country | Link |
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| CN (1) | CN111817002A (en) |
| WO (1) | WO2022012022A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410641A (en) * | 2021-05-24 | 2021-09-17 | 华南理工大学 | Back cavity 5G base station antenna with choking characteristic |
| WO2022012022A1 (en) * | 2020-07-16 | 2022-01-20 | 摩比天线技术（深圳）有限公司 | Low-profile radiation unit and small base station antenna |
| CN114914678A (en) * | 2022-05-11 | 2022-08-16 | 超讯通信股份有限公司 | Broadband dual-polarization crossed dipole antenna and base station |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7868843B2 (en) * | 2004-08-31 | 2011-01-11 | Fractus, S.A. | Slim multi-band antenna array for cellular base stations |
| CN105896071B (en) * | 2016-04-27 | 2019-07-12 | 上海安费诺永亿通讯电子有限公司 | Dual polarization vibrator unit, antenna and multifrequency antenna array |
| CN107230827A (en) * | 2017-05-31 | 2017-10-03 | 深圳三星通信技术研究有限公司 | A kind of half-wave dipole, radiating element and antenna |
| CN111029767A (en) * | 2019-12-27 | 2020-04-17 | 广东盛路通信科技股份有限公司 | Miniaturized low-profile base station antenna unit |
| CN111817002A (en) * | 2020-07-16 | 2020-10-23 | 摩比天线技术（深圳）有限公司 | Low-profile radiating element and small base station antenna |
-
2020
- 2020-07-16 CN CN202010685007.7A patent/CN111817002A/en active Pending
-
2021
- 2021-01-27 WO PCT/CN2021/073890 patent/WO2022012022A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012022A1 (en) * | 2020-07-16 | 2022-01-20 | 摩比天线技术（深圳）有限公司 | Low-profile radiation unit and small base station antenna |
| CN113410641A (en) * | 2021-05-24 | 2021-09-17 | 华南理工大学 | Back cavity 5G base station antenna with choking characteristic |
| CN114914678A (en) * | 2022-05-11 | 2022-08-16 | 超讯通信股份有限公司 | Broadband dual-polarization crossed dipole antenna and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022012022A1 (en) | 2022-01-20 |
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