CN113629396A - Low-profile radiation unit capable of improving gain and front-to-back ratio - Google Patents
Low-profile radiation unit capable of improving gain and front-to-back ratio Download PDFInfo
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- CN113629396A CN113629396A CN202110911739.8A CN202110911739A CN113629396A CN 113629396 A CN113629396 A CN 113629396A CN 202110911739 A CN202110911739 A CN 202110911739A CN 113629396 A CN113629396 A CN 113629396A
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- dipole
- coupling
- radiating element
- low
- radiating
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- 230000005855 radiation Effects 0.000 title claims description 35
- 230000008878 coupling Effects 0.000 claims abstract description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 claims abstract description 37
- 238000003466 welding Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- H01Q1/12—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
-
- 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
-
- 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
- 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
Abstract
The invention discloses a low-profile radiating unit capable of improving gain and front-to-back ratio, which comprises four dipoles, a coupling PCB (printed circuit board), radiating arms and dipole baluns, wherein every two of the four dipoles are combined and circumferentially distributed on the top of the coupling PCB and fixedly connected with the top of the coupling PCB, each dipole is provided with the dipole balun, and the radiating arms are arranged between every two adjacent groups of the dipole baluns. According to the low-profile radiating element capable of improving the gain and the front-to-back ratio, the dipole balun is designed to be bent downwards, the requirement on the electrical length of the radiating element is met, the height of the radiating element is reduced, the area of the joint of the dipole balun and the radiating arm is increased so as to meet the requirement on the electrical coupling of the dipole balun and the radiating arm, the joint is subjected to gap slotting design, the radiating height of the radiating element to the ground is improved, and the performance requirement of the radiating element is met.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a low-profile radiating unit capable of improving gain and front-to-back ratio.
Background
With the development of communication technology, the requirements of a communication system on an antenna are higher and higher, and the overall performance of the antenna is determined by the quality of a radiation unit; meanwhile, in order to meet the requirement that a plurality of operators build a common base station iron tower together, the operators provide new requirements for the size and the weight of the antenna, so that a small-size high-performance radiating unit is designed, and the practical significance is very important.
According to the microwave principle, the size of an antenna radiation unit is larger in LTE700, CDMA800 and GSM900 frequency bands, so that the whole size of the antenna is larger under the condition of meeting the performance requirement of a communication system; at present, operators adopt a mode of co-building a common base station, one base station has a plurality of systems working simultaneously, under the condition that the front-to-back ratio of the existing antenna is not very high, the systems interfere with each other to cause the deterioration of communication signals, and under the condition, the improvement of the front-to-back ratio of the antenna becomes increasingly important.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the low-profile radiating element capable of improving the gain and the front-to-back ratio, the dipole balun is designed to be bent downwards, the requirement on the electrical length of the radiating element is met, the height of the radiating element is reduced, the area of the joint of the dipole balun and the radiating arm is increased so as to meet the requirement on the electrical coupling of the dipole balun and the radiating arm, the joint is subjected to gap slotting design, the radiating height of the radiating element to the ground is improved, the performance requirement of the radiating element is met, and the like, and the problems in the background art are solved.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the four dipoles are combined in pairs and are circumferentially distributed on the top of the coupling PCB ground plate and fixedly connected with the top of the coupling PCB ground plate, each dipole is provided with the dipole balun, and the radiation arm is arranged between every two adjacent groups of dipole baluns.
Preferably, the radiation arm is electrically coupled with the two groups of dipole baluns.
Preferably, the radiation arm is in an inverted U shape, so that electromagnetic wave paths can be increased, and the electrical performance requirement can be met.
Preferably, the dipole balun bottom is provided with the department of bending, and the department of bending is fixed with feed cable welded block, feed cable welded block is bent by the panel beating and is formed, and this kind of setting has ensured the stability of feed cable welded block when using, lifting means's life.
Preferably, every two adjacent groups of dipoles are fixedly connected at the middle position of the dipole balun through a coupling balance block, the coupling balance block increases S parameter bandwidth of the radiation unit, and meanwhile radiation structure strength is enhanced.
Preferably, a coupling surface extends outwards from the top of each dipole balun, and the coupling surfaces are distributed away from the axis of the grounding plate of the coupling PCB.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. the coupling PCB grounding plate is different from other oscillator direct current grounding forms so as to improve the integral PIM magnitude of the antenna.
2. The invention designs the radiation arm into an inverted U-shaped radiation arm to increase the electromagnetic wave path, thereby meeting the electrical property requirement.
3. According to the invention, the dipole balun is designed to be bent downwards, the requirement on the electrical length of the radiation unit is met, the height of the radiation unit is reduced, the area of the joint of the dipole balun and the radiation arm is increased to meet the requirement on the electrical coupling of the dipole balun and the radiation arm, the joint is subjected to gap slotting design, the ground radiation height of the radiation unit is increased, and the performance requirement of the radiation unit is met.
4. The invention utilizes the coupling balance block to connect two adjacent dipoles at the middle position of the dipole balun, and the coupling balance block increases the S parameter bandwidth of the radiation unit, enhances the radiation structure strength and ensures the stability of the whole equipment.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic bottom view of the present invention.
In the figure: 1. a dipole; 2. coupling a PCB ground plate; 3. a radiation arm; 4. a dipole balun; 5. a feed cable welding block; 6. a coupling balance weight.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-3, the low-profile radiating element capable of improving gain and front-to-back ratio comprises four dipoles 1, a coupling PCB ground plate 2, radiating arms 3 and dipole baluns 4, wherein the four dipoles 1 are arranged, each two of the four dipoles 1 are combined and distributed on the top of the coupling PCB ground plate 2 in a circumferential manner and fixedly connected with the top of the coupling PCB ground plate 2, the dipoles 1 and the coupling PCB ground plate 2 can be connected in a rivet riveting manner, each dipole balun 4 is arranged on each dipole 1, the radiating arms 3 are arranged between every two adjacent groups of dipole baluns 4, and the radiating arms 3 and the two groups of dipole baluns 4 are connected in an electric coupling manner. In order to meet the wavelength requirements of the radiating arm 3 in the designed frequency band. The area of the connection part of the dipole balun 4 and the radiation arm 3 is increased so as to meet the requirement of electric coupling between the dipole balun 4 and the radiation arm 3, and the connection part is subjected to gap slotting design, so that the ground radiation height of the radiation unit is improved, and the performance requirement of the radiation unit is met. The radiating arm 3 is shaped as an inverted "U" to increase the electromagnetic wave path to meet electrical performance requirements. Because the bandwidth of the radiating element is relatively wide, in order to meet the bandwidth requirement, the top of each dipole balun 4 extends outwards to form a coupling surface, and the coupling surfaces are distributed at the positions far away from the axis of the coupling PCB grounding plate 2.
In order to meet the requirement of a low section of a radiation unit, the dipole balun 4 is designed to be bent downwards, the requirement of the electrical length of the radiation unit is met, the height of the radiation unit is reduced, a bent part is arranged at the bottom of the dipole balun 4, a feed cable welding block 5 is fixed at the bent part, the feed cable welding block 5 is formed by bending a metal plate, and the arrangement can ensure the stability of the feed cable welding block 5 and is not easy to damage.
Every two adjacent groups of dipoles 1 are fixedly connected at the middle position of the dipole balun 4 through a coupling balance block 6, the connection mode can adopt welding or coupling riveting, the coupling balance block 6 increases the S parameter bandwidth of the radiation unit, and meanwhile, the radiation structure strength is also enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A low profile radiating element with improved gain and front-to-back ratio, comprising: the novel dipole antenna comprises four dipoles (1), a coupling PCB (printed circuit board) grounding plate (2), radiation arms (3) and dipole baluns (4), wherein the four dipoles (1) are combined in pairs and are circumferentially distributed on the top of the coupling PCB grounding plate (2) and fixedly connected with the top of the coupling PCB grounding plate (2), each dipole (1) is provided with the dipole balun (4), and the radiation arms (3) are arranged between every two adjacent groups of dipole baluns (4).
2. A low-profile radiating element with improved gain and front-to-back ratio as defined in claim 1, wherein: the radiation arm (3) is electrically coupled with the two groups of dipole baluns (4).
3. A low-profile radiating element with improved gain and front-to-back ratio as claimed in claim 2, wherein: the shape of the radiation arm (3) is inverted U-shaped.
4. A low-profile radiating element with improved gain and front-to-back ratio as claimed in claim 3, wherein: the bottom of the dipole balun (4) is provided with a bending part, a feed cable welding block (5) is fixed at the bending part, and the feed cable welding block (5) is formed by bending a metal plate.
5. The low-profile radiating element with improved gain and front-to-back ratio as claimed in claim 4, wherein: and every two adjacent groups of dipoles (1) are fixedly connected at the middle position of the dipole balun (4) through a coupling balance block (6).
6. The low-profile radiating element with improved gain and front-to-back ratio as claimed in claim 4, wherein: the top of each dipole balun (4) extends outwards to form a coupling surface, and the coupling surfaces are distributed away from the axis of the coupling PCB ground plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911739.8A CN113629396A (en) | 2021-08-10 | 2021-08-10 | Low-profile radiation unit capable of improving gain and front-to-back ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110911739.8A CN113629396A (en) | 2021-08-10 | 2021-08-10 | Low-profile radiation unit capable of improving gain and front-to-back ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113629396A true CN113629396A (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110911739.8A Pending CN113629396A (en) | 2021-08-10 | 2021-08-10 | Low-profile radiation unit capable of improving gain and front-to-back ratio |
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Citations (14)
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|---|---|---|---|---|
| WO2009056001A1 (en) * | 2007-10-30 | 2009-05-07 | Comba Telecom System (China) Ltd. | Broadband annular dual-polarization radiation element and line shape antenna array |
| CN101916902A (en) * | 2010-07-15 | 2010-12-15 | 江苏捷士通科技股份有限公司 | Microstrip coupled radiation unit for broadband dual-polarized directional base station antenna |
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| US20180269589A1 (en) * | 2015-11-20 | 2018-09-20 | Huawei Technologies Co., Ltd. | Dual-polarized antenna |
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| CN109066099A (en) * | 2018-08-16 | 2018-12-21 | 南京澳博阳射频技术有限公司 | Ultra wideband dual polarization radiating element and antenna for base station |
| CN109193113A (en) * | 2018-11-06 | 2019-01-11 | 深圳市鑫龙通信技术有限公司 | A kind of dual-polarization radiating unit of antenna for base station |
| CN110401019A (en) * | 2019-07-18 | 2019-11-01 | 东莞理工学院 | The sub- radiating element of dual polarization dipole and antenna |
| CN110994150A (en) * | 2019-12-10 | 2020-04-10 | 广东盛路通信科技股份有限公司 | Miniaturized ultra-wideband low-frequency radiation unit and high-low frequency nested array |
| CN111063984A (en) * | 2019-12-27 | 2020-04-24 | 京信通信技术(广州)有限公司 | Base station antenna and radiation unit |
| CN210926309U (en) * | 2019-12-27 | 2020-07-03 | 京信通信技术(广州)有限公司 | Low-frequency radiation unit and MIMO antenna |
| CN112216973A (en) * | 2020-11-03 | 2021-01-12 | 摩比天线技术（深圳）有限公司 | Low-frequency radiation unit and base station antenna |
| CN112787079A (en) * | 2019-11-07 | 2021-05-11 | 罗森伯格技术有限公司 | Miniaturized direct current grounding radiation unit and antenna |
-
2021
- 2021-08-10 CN CN202110911739.8A patent/CN113629396A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009056001A1 (en) * | 2007-10-30 | 2009-05-07 | Comba Telecom System (China) Ltd. | Broadband annular dual-polarization radiation element and line shape antenna array |
| CN101916902A (en) * | 2010-07-15 | 2010-12-15 | 江苏捷士通科技股份有限公司 | Microstrip coupled radiation unit for broadband dual-polarized directional base station antenna |
| US20180269589A1 (en) * | 2015-11-20 | 2018-09-20 | Huawei Technologies Co., Ltd. | Dual-polarized antenna |
| CN106129596A (en) * | 2016-07-27 | 2016-11-16 | 京信通信技术(广州)有限公司 | Antenna radiation unit and multiple frequency broad band antenna for base station |
| CN108110409A (en) * | 2018-01-30 | 2018-06-01 | 京信通信系统（中国）有限公司 | Broadband dual polarized antenna and its radiation appliance |
| CN208272119U (en) * | 2018-04-19 | 2018-12-21 | 深圳国人通信股份有限公司 | A kind of low-frequency antenna radiating element |
| CN109066099A (en) * | 2018-08-16 | 2018-12-21 | 南京澳博阳射频技术有限公司 | Ultra wideband dual polarization radiating element and antenna for base station |
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| CN112787079A (en) * | 2019-11-07 | 2021-05-11 | 罗森伯格技术有限公司 | Miniaturized direct current grounding radiation unit and antenna |
| CN110994150A (en) * | 2019-12-10 | 2020-04-10 | 广东盛路通信科技股份有限公司 | Miniaturized ultra-wideband low-frequency radiation unit and high-low frequency nested array |
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