CN220492200U - Dual-polarized radiating element and base station antenna - Google Patents
Dual-polarized radiating element and base station antenna Download PDFInfo
- Publication number
- CN220492200U CN220492200U CN202322222804.3U CN202322222804U CN220492200U CN 220492200 U CN220492200 U CN 220492200U CN 202322222804 U CN202322222804 U CN 202322222804U CN 220492200 U CN220492200 U CN 220492200U
- Authority
- CN
- China
- Prior art keywords
- feed
- arms
- radiating
- substrate
- radiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 claims abstract description 53
- 238000003466 welding Methods 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 230000009977 dual effect Effects 0.000 claims description 18
- 230000010287 polarization Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 claims 1
- 238000005476 soldering Methods 0.000 description 7
- 238000005388 cross polarization Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model discloses a dual-polarized radiating unit and a base station antenna, wherein the dual-polarized radiating unit comprises a radiating surface and a feed unit, the feed unit comprises a feed substrate, two mutually parallel feed circuits on the front surface of the substrate, a balun circuit on the back surface of the substrate, and two feed welding modules on the front surface and two feed welding modules on the back surface of the substrate, wherein the feed circuits and the balun circuits are connected with the feed welding modules on the other surface of the feed substrate in a through hole mode; the radiator comprises eight radiating arms which are arranged outwards from the center, the two radiating arms at the upper left corner are connected into a whole, the two radiating arms at the upper right corner are connected into a whole, and the two radiating arms are respectively connected with two feed welding modules at the back of the feed substrate through downward welding points; the two radiation arms at the lower left corner are connected into a whole, and the two radiation arms at the lower right corner are connected into a whole and are respectively connected with the two feeding welding modules on the front side of the feeding substrate through upward welding points. The utility model can effectively improve the radiation performance of the antenna and reduce the cost.
Description
Technical Field
The utility model relates to the field of mobile communication, in particular to a dual-polarized radiating element and a base station antenna.
Background
With the continuous development of mobile communication technology, the mobile communication system has higher and higher requirements on the base station antenna, and the radiation unit is used as the core of the base station antenna, so that the performance of the radiation unit is more determined to be the performance of the whole base station system; most dual-polarized radiation units in the current stage have radiation principles based on the radiation principles of conventional half-wave dipoles, but the radiation indexes of the half-wave dipoles such as gain, front-to-back ratio, sector power ratio, cross polarization discrimination and the like are generally poor, and the feed parts are of double structures, so that the cost is high.
Disclosure of Invention
The utility model aims to: in view of the foregoing, it is an object of the present utility model to provide a dual polarized radiating element and a base station antenna with low cost and better performance.
The technical scheme is as follows: in order to achieve the above object, the present utility model provides a dual polarized radiating element, comprising a radiating surface and a feeding unit, wherein the radiating surface comprises a dielectric substrate and a radiator arranged on the dielectric substrate; the power supply unit comprises a power supply substrate, two parallel power supply circuits on the front side of the power supply substrate, a balun circuit on the back side of the power supply substrate, two power supply welding modules on the front side of the power supply substrate and two power supply welding modules on the back side of the power supply substrate, wherein the power supply circuits and the balun circuits are connected with the power supply welding modules on the other side of the power supply substrate in a through hole mode; the radiator comprises eight radiating arms which are arranged outwards from the center, the two radiating arms at the upper left corner are connected into a whole, the two radiating arms at the upper right corner are connected into a whole, and the two radiating arms are respectively connected with two feed welding modules at the back of the feed substrate through downward welding points; the two radiation arms at the lower left corner are connected into a whole, and the two radiation arms at the lower right corner are connected into a whole and are respectively connected with the two feeding welding modules on the front side of the feeding substrate through upward welding points.
Preferably, each radiation arm is provided with an inner half dipole and an outer half dipole from inside to outside in sequence; the upper left two radiating arms and the inner and outer dipoles on the arms, and the lower right two radiating arms and the inner and outer dipoles on the arms form a polarized dipole; the inner half-dipoles and the outer half-dipoles on the two radiation arms and the arms at the upper right corner, and the inner half-dipoles and the outer half-dipoles on the two radiation arms and the arms at the lower left corner form another polarized dipole which is mutually orthogonal.
Preferably, gaps are arranged between the inner dipoles arranged on the radiation arms on the same polarization, and the gaps are equal in size.
Preferably, each outer half-dipole is electrically connected to an adjacently polarized outer half-dipole to form a closed electrical loop.
Preferably, the inner half-dipoles and the outer half-dipoles on each radiating arm are arranged in parallel.
Preferably, T-shaped gaps are formed between the inner half dipoles and the outer half dipoles on adjacent radiation arms with different polarizations.
Preferably, eight radiating arms are arranged around the center of the unit, forming a cross-shaped gap between the radiating arms.
Preferably, the front surface of the feed substrate is provided with a first feed circuit and a second feed circuit which are parallel to each other and perpendicular to the radiation surface, and a first feed welding module and a second feed welding module which are inserted in the radiation surface above the feed circuits; the back of the feed substrate is provided with a balun circuit parallel to the feed circuit, and a third feed welding module and a fourth feed welding module which are inserted in the radiation surface above the balun circuit; the first feed circuit is connected with the third feed welding module through a through hole, the second feed circuit is connected with the fourth feed welding module through a through hole, and the positions of the first feed circuit, the second feed circuit, the third feed welding module and the fourth feed welding module are staggered.
Preferably, the first feed welding module and the second feed welding module are respectively connected with corresponding branch circuits at the top end of the balun circuit through holes.
Another aspect of the present utility model provides a base station antenna, including the dual polarized radiating element.
The beneficial effects are that: the dual-polarized radiating unit skillfully integrates double-structure feed on the same high-frequency double-layer circuit board in a through hole mode, so that the cost is effectively reduced; the radiation performance part successfully improves indexes such as sector power ratio, cross polarization discrimination and the like by arranging inner and outer half dipoles on eight radiation arms respectively, and improves indexes such as gain, front-to-back ratio and the like by connecting adjacent differently polarized outer half dipoles, so that the radiation performance of the whole antenna is effectively improved, and the coverage of signals is ensured.
Drawings
Fig. 1 is a schematic perspective view of a dual polarized radiation unit according to the present utility model.
Fig. 2 is a top view of a dual polarized radiating element provided by the present utility model.
Fig. 3 is a detailed schematic diagram of a radiation surface of a dual polarized radiation unit according to the present utility model.
Fig. 4 is a detailed schematic diagram of a dual polarized radiating element feed unit according to the present utility model, where (a) is the front side and (b) is the perspective back side.
Detailed Description
The utility model will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1, a dual polarized radiating element according to an embodiment of the present utility model includes a radiating surface 1 and a feeding unit 2. The radiation surface 1 includes a dielectric substrate 102 and mutually orthogonal radiators 101 provided on the dielectric substrate; the feed unit 2 comprises a feed substrate and two parallel feed circuits on the front surface of the feed substrate, wherein the two parallel feed circuits are vertically arranged below the center of the radiation surface 1, and the balun circuits on the back surface of the feed substrate are also vertically arranged below the center of the radiation surface 1; the top of the feeding unit 2 is inserted in the center of the radiating surface 1 and connected to the radiator 101 by welding.
As shown in fig. 2 and 3, a radiator 101 disposed on a dielectric substrate 102 is provided with eight radiating arms 1011 from the center to the outside, each radiating arm is provided with two half-dipoles sequentially from the inside to the outside, namely an inner half-dipole 1012 and an outer half-dipole 1013 (an inner half-dipole 10121 and an outer half-dipole 10131 are disposed on a radiating arm 10111, an inner half-dipole 10122 and an outer half-dipole 10132 are disposed on a radiating arm 10112, an inner half-dipole 10123 and an outer half-dipole 10133 are disposed on a radiating arm 10113, an inner half-dipole 10124 and an outer half-dipole 10134 are disposed on a radiating arm 10114, an inner half-dipole 10125 and an outer half-dipole 10135 are disposed on a radiating arm 10115, an inner half-dipole 10126 and an outer half-dipole 10136 are disposed on a radiating arm 10116, an inner half-dipole 10127 and an outer half-dipole 10137 are disposed on a radiating arm 10118, and an inner half-dipole 10128 and an outer half-dipole 10138 are disposed on a radiating arm 10117; when the antenna is operated, the radiator 101 can improve radiation indexes such as sector power ratio, cross polarization discrimination, and the like through interaction between inner and outer half dipoles (1012, 1013) provided on the radiating arm 1011.
The radiation arms 10111, 10112 and inner half dipoles 10121, 10122, outer half dipoles 10131, 10132 on the arms form a polarized dipole with the radiation arms 10115, 10116 and inner half dipoles 10125, 10126, outer half dipoles 10135, 10136 on the arms; the radiating arms 10113, 10114 and the inner and outer halves 10123, 10124, 10133, 10134 on the arms form another polarized dipole orthogonal to each other with the radiating arms 10117, 10118 and the inner and outer halves 10127, 10128, 10137, 10138 on the arms.
Gaps are arranged between inner dipoles (10121 and 10122, 10123 and 10124, 10125 and 10126, 10127 and 10128) arranged on radiation walls (10111 and 10112, 10113 and 10114, 10115 and 10116, 10117 and 10118) on the same polarization, and the gaps are equal.
The inner half dipole and the outer half dipole on each radiation arm are arranged in parallel. T-shaped gaps are formed between adjacent differently polarized radiation arms (10111 and 10112, 10113 and 10114, 10115 and 10116, 10117 and 10118), inner half dipoles (10121 and 10122, 10123 and 10124, 10125 and 10126, 10127 and 10128) and outer half dipoles (10131 and 10132, 10133 and 10134, 10135 and 10136, 10137 and 10138) on the arms. Eight radiating arms are arranged around the center of the unit, and a cross-shaped gap is formed between the radiating arms.
Each outer half-dipole is electrically connected with an adjacently polarized outer half-dipole to form a closed electrical loop (i.e., outer half-dipole 10131 on radiating wall 10111 is connected with outer half-dipole 10133 on radiating wall 10113; outer half-dipole 10132 on radiating wall 10112 is connected with outer half-dipole 10138 on radiating wall 10118; outer half-dipole 10134 on radiating wall 10114 is connected with outer half-dipole 10135 on radiating wall 10115; outer half-dipole 10136 on radiating wall 10116 is connected with outer half-dipole 10137 on radiating wall 10117); the inner and outer dipoles on each radiating arm are arranged in parallel (T-shaped gaps are formed between the inner and outer dipoles 10121 and 10131 on the radiating wall 10111 and the inner and outer dipoles 10123 and 10133 on the radiating wall 10113, T-shaped gaps are formed between the inner and outer dipoles 10122 and 10132 on the radiating wall 10112 and the inner and outer dipoles 10128 and 10138 on the radiating wall 10118, T-shaped gaps are formed between the inner and outer dipoles 10124 and 10134 on the radiating wall 10114 and the inner and outer dipoles 10125 and 10135 on the radiating wall 10115, and T-shaped gaps are formed between the inner and outer dipoles 10126 and 10136 on the radiating wall 10116 and the inner and outer dipoles 10127 and 10137 on the radiating wall 10117). Eight radiating arms (10111, 10112, 10113, 10114, 10115, 10116, 10117, 10118) are arranged around the center of the unit, forming a cross-shaped gap between the radiating arms. The four closed electric loops formed on the radiator 101 are formed to increase the radiation caliber in a phase-changing way, so that the radiation indexes of the whole radiation unit, such as gain, front-to-back ratio and the like, are improved.
As shown in fig. 4, the feeding unit 2 is a high-frequency double-layer circuit board, and includes a feeding substrate 201, a first feeding circuit 2021, a second feeding circuit 2022, a first feeding soldering module 2031, a second feeding soldering module 2032, and a balun circuit 203, a third feeding soldering module 20211, and a fourth feeding soldering module 20221, which are disposed on the front surface of the feeding substrate 201; the first power feeding circuit 2021 and the second power feeding circuit 2022 are respectively connected with a third power feeding welding module 20211 and a fourth power feeding welding module 20221 of the power feeding unit 2 penetrating to the upper part of the radiation surface 1 in a through hole mode; the balun circuit 203 is also connected to the first and second power-feeding soldering modules 2031 and 2032, respectively, of the power-feeding unit 2 penetrating through the upper portion of the radiating surface 1 by way of through holes.
As shown in fig. 1, 3 and 4, the second feeding welding module 2032 is connected to the connection of the radiation walls 10115 and 10116 by welding; the first feed welding module 2031 is connected to the connection of the radiation walls 10117, 10118 by welding; the third feed welding module 20211 is connected to the connection of the radiating walls 10113, 10114 by welding; the fourth feed soldering module 20221 is connected to the junction of the radiating walls 10111, 10112 by soldering.
The dual-polarized radiating unit skillfully integrates double-structure feed on the same high-frequency double-layer circuit board in a through hole mode, so that the cost is reduced; the radiation performance part successfully improves indexes such as sector power ratio, cross polarization discrimination and the like by arranging inner and outer half dipoles on eight radiation arms respectively, and improves indexes such as gain, front-to-back ratio and the like by connecting adjacent differently polarized outer half dipoles, so that the radiation performance of the whole antenna is effectively improved, and the coverage of signals is ensured.
The foregoing is only a partial embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A dual polarized radiation unit comprises a radiation surface and a feed unit, wherein the radiation surface comprises a dielectric substrate and a radiator arranged on the dielectric substrate; the method is characterized in that: the power supply unit comprises a power supply substrate, two parallel power supply circuits on the front side of the power supply substrate, a balun circuit on the back side of the power supply substrate, two power supply welding modules on the front side of the power supply substrate and two power supply welding modules on the back side of the power supply substrate, wherein the power supply circuits and the balun circuits are connected with the power supply welding modules on the other side of the power supply substrate in a through hole mode; the radiator comprises eight radiating arms which are arranged outwards from the center, the two radiating arms at the upper left corner are connected into a whole, the two radiating arms at the upper right corner are connected into a whole, and the two radiating arms are respectively connected with two feed welding modules at the back of the feed substrate through downward welding points; the two radiation arms at the lower left corner are connected into a whole, and the two radiation arms at the lower right corner are connected into a whole and are respectively connected with the two feeding welding modules on the front side of the feeding substrate through upward welding points.
2. The dual polarized radiation element of claim 1, wherein each radiation arm is provided with an inner half dipole and an outer half dipole in sequence from inside to outside; the upper left two radiating arms and the inner and outer dipoles on the arms, and the lower right two radiating arms and the inner and outer dipoles on the arms form a polarized dipole; the inner half-dipoles and the outer half-dipoles on the two radiation arms and the arms at the upper right corner, and the inner half-dipoles and the outer half-dipoles on the two radiation arms and the arms at the lower left corner form another polarized dipole which is mutually orthogonal.
3. The dual polarized radiating element of claim 2, wherein gaps are provided between inner halves of dipoles disposed on radiating arms of a same polarization and are equal in size.
4. A dual polarized radiating element according to claim 2, wherein each outer half dipole is electrically connected to an adjacently polarized outer half dipole to form a closed electrical loop.
5. A dual polarized radiating element according to claim 2, wherein the inner and outer halves of each radiating arm are arranged in parallel.
6. The dual polarized radiating element of claim 2, wherein T-shaped gaps are formed between adjacent differently polarized radiating arms and inner and outer halves of the arms.
7. The dual polarized radiating element of claim 1, wherein eight radiating arms are disposed around the center of the element, forming a cross-shaped gap between the radiating arms.
8. The dual polarized radiating element of claim 1, wherein the front side of the feed substrate is provided with a first feed circuit and a second feed circuit parallel to each other and perpendicular to the radiating surface, and a first feed welding module and a second feed welding module interposed over the feed circuits on the radiating surface; the back of the feed substrate is provided with a balun circuit parallel to the feed circuit, and a third feed welding module and a fourth feed welding module which are inserted in the radiation surface above the balun circuit; the first feed circuit is connected with the third feed welding module through a through hole, the second feed circuit is connected with the fourth feed welding module through a through hole, and the positions of the first feed circuit, the second feed circuit, the third feed welding module and the fourth feed welding module are staggered.
9. The dual polarized radiating element of claim 8, wherein the first and second feed solder modules are connected to corresponding branch circuits at the top of the balun circuit by vias, respectively.
10. A base station antenna, characterized by comprising a dual polarized radiating element according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222804.3U CN220492200U (en) | 2023-08-18 | 2023-08-18 | Dual-polarized radiating element and base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222804.3U CN220492200U (en) | 2023-08-18 | 2023-08-18 | Dual-polarized radiating element and base station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220492200U true CN220492200U (en) | 2024-02-13 |
Family
ID=89841777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322222804.3U Active CN220492200U (en) | 2023-08-18 | 2023-08-18 | Dual-polarized radiating element and base station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220492200U (en) |
-
2023
- 2023-08-18 CN CN202322222804.3U patent/CN220492200U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6894650B2 (en) | Modular bi-polarized antenna | |
| CN210443665U (en) | Radiating unit with 880-960MHz band filtering characteristic and base station antenna | |
| CN105720361A (en) | Artificial magnetic conductor structure-based broadband low-profile dual-polarized omnidirectional antenna | |
| CN101032053B (en) | Pin fin ground plane for a patch antenna | |
| EP3968458A1 (en) | Radiating structure and array antenna | |
| CN108417961B (en) | Massive MIMO array antenna | |
| CN101465475A (en) | Dual polarization radiating element and plane vibrator thereof | |
| CN107331974A (en) | A kind of circular polarized antenna based on ridge gap waveguide | |
| CN209045768U (en) | A kind of electricity tune antenna for base station | |
| CN207353447U (en) | Multipolarization radiating doublet and antenna | |
| CN114824779B (en) | Single-layer low-profile broadband dual-polarized patch antenna | |
| CN211578982U (en) | Novel double-layer multi-frequency broadband microstrip antenna | |
| CN101552375A (en) | Low intermodulation printed circuit boards antenna | |
| CN2924816Y (en) | Dual-polarization antenna | |
| CN216055166U (en) | Antenna radiation unit structure and dual-polarized antenna | |
| CN113708051B (en) | Radiating element, antenna and base station | |
| CN212303896U (en) | Base station MIMO antenna unit | |
| CN220492200U (en) | Dual-polarized radiating element and base station antenna | |
| CN105048066A (en) | Low-profile high-gain fractal miniature base station antenna | |
| CN210926307U (en) | Antenna with a shield | |
| CN201199544Y (en) | Small separation array antennas | |
| CN112928463A (en) | Vertical polarization omnidirectional antenna | |
| CN213878430U (en) | Low-frequency oscillator unit and antenna | |
| CN212517542U (en) | Terahertz end-fire array linear array antenna based on dipole antenna unit | |
| CN212783801U (en) | L-band phased array antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |