CN207217768U - A kind of coupled dual-polarized antenna for base station of T-shaped - Google Patents
A kind of coupled dual-polarized antenna for base station of T-shaped Download PDFInfo
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- CN207217768U CN207217768U CN201720822612.8U CN201720822612U CN207217768U CN 207217768 U CN207217768 U CN 207217768U CN 201720822612 U CN201720822612 U CN 201720822612U CN 207217768 U CN207217768 U CN 207217768U
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- polarized antenna
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Abstract
A kind of coupled dual-polarized antenna for base station of T-shaped is the utility model is related to, including：Medium substrate, its lower surface have been set at 90 ° intervals 4 radiating elements in a circumferential direction；Its upper surface has been set at 90 ° intervals two feed elements in a circumferential direction, and each feed element is correspondingly arranged the top for two radiating elements for being spaced 180 ° in a circumferential direction；Two feed elements are intersected in the position at the center of 4 radiating elements；Each feed element is provided with a T-shaped end；One in two feed elements, depression is provided with the position at the center of 4 radiating elements, to avoid being connected with another feed element；Reflecting plate, it is arranged on the lower section of medium substrate；Two coaxial cables, its lower end are connected with reflecting plate respectively；Its upper end is connected with two feed elements respectively.The coupled dual-polarized antenna for base station of T-shaped of the present utility model uses T-shaped feed structure, can effectively adjust the impedance matching of antenna, improve the impedance bandwidth of antenna, and impedance bandwidth is reached 42%.
Description
Technical field
A kind of antenna for base station is the utility model is related to, more particularly to a kind of coupled dual-polarized antenna for base station of T-shaped.
Background technology
The circuit parameter and radiation parameter performance of antenna are all usually the functions on frequency, can be with the continuous change of frequency
Move and change, the parameter index change of antenna changes in some frequency range, is referred to as the frequency range for antenna
Bandwidth.Antenna for base station it is broadband, multifrequency has become a weight of the current domestic and foreign scholars for antenna for base station field
Point research direction.
There is a kind of L-shaped couple feed structure in the prior art, there is a seam between its terminal horizontal part and radiation patch
Gap, and capacitance characteristic can be presented in this gap, so as to offset the inductance of probe in itself.But the impedance bandwidth of the antenna is only
For 32%.
Utility model content
The utility model will solve technical problem of the prior art, there is provided a kind of coupled dual-polarized antenna for base station of T-shaped.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is specific as follows：
A kind of coupled dual-polarized antenna for base station of T-shaped, including：
Medium substrate, its lower surface have been set at 90 ° intervals 4 radiating elements in a circumferential direction；Its upper surface is in circumference
Two feed elements are set at 90 ° intervals on direction, each feed element is correspondingly arranged the two of 180 ° of interval in a circumferential direction
The top of individual radiating element；Two feed elements are intersected in the position at the center of 4 radiating elements；In every a pair of rectilinear directions
The original dimension of radiating element is all the half-wavelength of corresponding centre frequency；Each feed element is provided with a T-shaped end；Two feeds
One in unit, depression is provided with the position at the center of 4 radiating elements, to avoid being connected with another feed element；
Reflecting plate, it is arranged on the lower section of medium substrate；
Two coaxial cables, its lower end are connected with reflecting plate respectively；Its upper end is connected with two feed elements respectively.
In the above-mentioned technical solutions, the radiating element is shaped as sector.
In the above-mentioned technical solutions, the material of the medium substrate is FR4.
In the above-mentioned technical solutions, the thickness of the medium substrate is 0.8mm.
In the above-mentioned technical solutions, the reflecting plate is circle.
The utility model has following beneficial effect：
The coupled dual-polarized antenna for base station of T-shaped of the present utility model uses T-shaped feed structure, can effectively adjust antenna
Impedance matching, improves the impedance bandwidth of antenna, and impedance bandwidth is reached 42%.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model uses couple feed structure, it is possible to reduce the solder joint of antenna
Quantity, so as to reduce the passive intermodulation distortion of antenna.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the coupled dual-polarized antenna for base station of T-shaped of the present utility model.
Fig. 2 is the structural representation of the radiating element in the coupled dual-polarized antenna for base station of T-shaped shown in Fig. 1；
Fig. 3 is the structural representation of the feeder line in the coupled dual-polarized antenna for base station of T-shaped shown in Fig. 1；
Reference in figure is expressed as：
1- radiating elements；2- medium substrates；3- coaxial cables；4- feed elements；5- reflecting plates；6- is recessed；7-T shapes end.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model, including：Four fan-shaped radiating elements 1, medium substrate 2,
Two feed elements 4, two coaxial cables 3 and circular reflecting plate 5.
Wherein, the reflecting plate 5 below medium substrate 2 can realize stable directed radiation, so as to increase the gain of antenna.
Radiating element 1 and feed element 4 are respectively positioned at relative thickness 0.8mm up and down on two surfaces of FR4 medium substrates 2.Radiation
Unit 1 is located at the lower surface of medium substrate 2, and feed element 4 is located at the upper surface of medium substrate 2.4 radiating elements 1 are being situated between
The lower surface of matter substrate 2 is set at 90 ° intervals in a circumferential direction；Two feed elements 4 are in the upper surface of medium substrate 2 in circumferencial direction
On be set at 90 ° intervals, each feed element 4 be correspondingly arranged in a circumferential direction be spaced 180 ° two radiating elements 1 top；
Two feed elements 4 are intersected in the position at the center of 4 radiating elements 1；It is one in two feed elements 4, single in 4 radiation
The position at the center of member 1 is provided with depression 6, to avoid being connected with another feed element 4.Each feed element 4 is provided with a T-shaped
End 7.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model, radiating element 1 can increase base using fan-shaped grading structure
The bandwidth of station antenna, this four fan beam units 1 constitute+45 ° of poliarizing antennas and -45 ° of poliarizing antennas.It is each
Original dimension to the radiating element 1 in rectilinear direction is all the half-wavelength of corresponding centre frequency.In present embodiment, on
It is 2.3GHz to state centre frequency.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model, the simulation value of standing-wave ratio are full in 1.7-2.7GHz frequency ranges
Sufficient SWR<1.5, and meet SWR in 1.75-2.75GHz frequency ranges<1.84；The test value of standing-wave ratio is in frequency range 1.75-2.75GHz
Inside meet that standing-wave ratio test value meets SWR<2.Gain simulation value is 8.6 ± 0.48dBi in 1.75-2.75GHz frequency ranges, gain
Test value in frequency band 1.1dBi smaller than simulation value or so.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model uses T-shaped feed structure, can effectively adjust antenna
Impedance matching, improve the impedance bandwidth of antenna so that impedance bandwidth reaches 42%.
The coupled dual-polarized antenna for base station of T-shaped of the present utility model uses couple feed structure, it is possible to reduce the solder joint of antenna
Quantity, so as to reduce the passive intermodulation distortion of antenna.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (5)
- A kind of 1. coupled dual-polarized antenna for base station of T-shaped, it is characterised in that including：Medium substrate (2), its lower surface have been set at 90 ° intervals 4 radiating elements (1) in a circumferential direction；Its upper surface is in circle Two feed elements (4) are set at 90 ° intervals in circumferential direction, each feed element (4) is correspondingly arranged to be spaced in a circumferential direction The top of 180 ° of two radiating elements (1)；Two feed elements (4) are intersected in the position at the center of 4 radiating elements (1)； The original dimension of radiating element (1) in every a pair of rectilinear directions is all the half-wavelength of corresponding centre frequency；Each feed element (4) it is provided with a T-shaped end (7)；One in two feed elements (4), it is provided with the position at the center of 4 radiating elements (1) It is recessed (6), to avoid being connected with another feed element (4)；Reflecting plate (5), it is arranged on the lower section of medium substrate (2)；Two coaxial cables (3), its lower end are connected with reflecting plate (5) respectively；Its upper end respectively with two feed element (4) phases Even.
- 2. the coupled dual-polarized antenna for base station of T-shaped according to claim 1, it is characterised in that the shape of the radiating element (1) Shape is sector.
- 3. the coupled dual-polarized antenna for base station of T-shaped according to claim 1, it is characterised in that the material of the medium substrate (2) Expect for FR4.
- 4. the coupled dual-polarized antenna for base station of T-shaped according to claim 1, it is characterised in that the thickness of the medium substrate (2) Spend for 0.8mm.
- 5. the coupled dual-polarized antenna for base station of T-shaped according to claim 1, it is characterised in that the reflecting plate (5) is circle Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822612.8U CN207217768U (en) | 2017-07-07 | 2017-07-07 | A kind of coupled dual-polarized antenna for base station of T-shaped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822612.8U CN207217768U (en) | 2017-07-07 | 2017-07-07 | A kind of coupled dual-polarized antenna for base station of T-shaped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207217768U true CN207217768U (en) | 2018-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720822612.8U Expired - Fee Related CN207217768U (en) | 2017-07-07 | 2017-07-07 | A kind of coupled dual-polarized antenna for base station of T-shaped |
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| Country | Link |
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| CN (1) | CN207217768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115775980A (en) * | 2023-02-10 | 2023-03-10 | 西南交通大学 | Low-profile broadband dual-polarized antenna loaded by magnetic medium |
-
2017
- 2017-07-07 CN CN201720822612.8U patent/CN207217768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115775980A (en) * | 2023-02-10 | 2023-03-10 | 西南交通大学 | Low-profile broadband dual-polarized antenna loaded by magnetic medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190707 |