CN207399219U - A kind of calibration network applied to 3.5G frequency range TD antenna for base station - Google Patents
A kind of calibration network applied to 3.5G frequency range TD antenna for base station Download PDFInfo
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- CN207399219U CN207399219U CN201721468544.6U CN201721468544U CN207399219U CN 207399219 U CN207399219 U CN 207399219U CN 201721468544 U CN201721468544 U CN 201721468544U CN 207399219 U CN207399219 U CN 207399219U
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- calibration network
- antenna
- calibration
- base station
- directional coupler
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Abstract
The utility model discloses a kind of calibration networks applied to 3.5G frequency range TD antenna for base station, calibration network is made of multiple Wilkinson power dividers and directional coupler, power splitter and directional coupler are designed using micro-strip coplanar waveguide, interfering with each other between reduction delivery outlet, improves the uniformity for exporting the phase and amplitude between each port.Calibration network is process using printing PCB, and pcb board is fixed on shape of chinese word Ji installing plate, and installing plate is being folded up a flange close to the one side of antenna element, reduces influence of the aerial radiation a period of time to calibration network amplitude-phase.This calibration network can be applied to four array double polarization T D antenna for base station of 3.5G frequency ranges, realizes horizontal plane wave beam forming by the different amplitude of system loads and phase, greatly improves system data capacity and spectrum efficiency.
Description
Technical field
The utility model is related to 3.5G antennas, are specifically a kind of calibration network applied to 3.5G frequency range TD antenna for base station,
Belong to mobile communication technology field.
Background technology
With the continuous development of China's mobile communication, the research of the 5th third-generation mobile communication (5G) has been unfolded, and 5G movements are logical
Letter can provide faster data transmission bauds, it is necessary to the data capacity of bigger and higher wireless frequency spectrum efficiency, for 5G
The antenna of communication may be designed as the more array mimo antennas of multiport, realizes the transmission of Large Volume Data by wave beam forming and connects
It receives.3300~3600MHz of 3.5G frequency ranges has been confirmed to be the experiment frequency range of 5G communications at present, and the TD (time-divisions are used in 3.5G frequency ranges
Multiple access) the more array multi-port antennas of form design, it is necessary to antenna input port add in calibration network, from calibration mouth input one
After calibration signal, can aerial receiver be reached by the output terminal of directional coupler, each port amplitude-phase is detected with this
Uniformity.
Utility model content
Purpose of utility model：The utility model provides a kind of calibration network applied to 3.5G frequency range TD antenna for base station, uses
In multi-port antenna, the uniformity of each port amplitude-phase of testing calibration, the calibration network is using printing PCB processing, surface
Anticorrosion green oil is coated, processing uniformity is good, at low cost.The soldering surface mounted resistance of power splitter branch location, improve output port it
Between isolation, reduce interfering with each other for output port.
Technical solution：A kind of calibration network applied to 3.5G frequency range TD antenna for base station, calibration network include multiple Weirs
The gloomy power splitter of gold and directional coupler, multiple Wilkinson power dividers and multiple directional couplers are located on calibration network pcb board,
Calibration network pcb board is fixed on shape of chinese word Ji installing plate, and shape of chinese word Ji installing plate is equipped with to turn up and turn in the one side of close radiating element
Side；The total input port of power splitter be calibration port, directional coupler be antenna radio-frequency signal input port, the calibration
Network is designed with 100 ohm chip resistors in power splitter branch location, has 50 ohm of patches in power splitter afterbody tip designs
Sheet resistance.
By adjusting the size in directional coupler circuit gap, the big of the coupled signal that antenna port receives can be adjusted
It is small.After calibration port inputs a calibration signal, it can be reached by the antenna radio-frequency signal input port of directional coupler
Aerial receiver detects the uniformity of each port amplitude-phase with this.
The calibration network is using printing PCB processing, and uniformity is good, and high precision machining is at low cost, easy for installation.It is beneficial to
Batch production.Front-side circuit on multiple Wilkinson power dividers and multiple directional couplers composition calibration network pcb board, front
Circuit uses micro-strip coplanar waveguide structure design, it is possible to reduce influencing each other between each output port improves width between port
Spend the uniformity of phase.
The calibration network power splitter branch location is welded with 100 ohm chip resistors, increases two output terminals of power splitter
Mouthful between isolation, reduce output port between interfere with each other.
The calibration network power splitter end is welded with 50 Ohmic resistances, as absorbing load.
The calibration network is mounted on shape of chinese word Ji installing plate, and installing plate has upward close to the one side of antenna radiation unit
Flanging reduces influence of the radiating element to calibration network amplitude-phase.
Advantageous effect：The calibration network of 3.5G frequency ranges TD antenna for base station provided by the utility model, front-side circuit is using micro-
Band co-planar waveguide designs, and when actual processing processes metallization VIA on the outside of circuit, forms micro-strip coplanar waveguide structure so that each
The amplitude-phase variation of output port is consistent.The calibration network may be used in the more array antennas of TD standards of 5G communications, calibration
The amplitude-phase uniformity of each input port of array antenna inputs different amplitude-phases by base station equipment, forms wave beam and assigns
Shape improves message capacity and data transmission efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment；
Fig. 2 is the utility model calibration network pcb board schematic diagram；
Fig. 3 is the utility model directional coupler schematic diagram；
Fig. 4 is the utility model calibration network installing plate schematic diagram.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, this
It is as defined in the appended claims that field technology personnel fall within the application to the modification of the various equivalent forms of the utility model
Scope.
As shown in Figure 1, present embodiment discloses a kind of calibration network applied to 3.5G frequency range TD antenna for base station, including school
The installing plate 2 of pseudo-crystalline lattice pcb board 1 and calibration network pcb board, as shown in figure 4, calibration network installing plate 2 is processed with aluminium sheet, into
Shape of chinese word Ji is folded up flange close to the one side of radiating element, and calibration network pcb board 1 is located at 2 middle part top of installing plate.
As shown in Fig. 2, the front-side circuit of calibration network pcb board 1 includes seven Wilkinson power dividers 3 and eight orientation couplings
Clutch 4.
As shown in Fig. 2, power splitter branch location welds 100 ohm chip resistors 5,50 ohm chips are welded in power splitter end
Resistance 6.
As shown in figure 3, the gap size between the circuit of directional coupler 4 determines the size of output port range value.
As shown in Fig. 2, calibration network version is process using two-sided ptfe substrate, surface coating green oil processing,
Prevent corrosion oxidation.
As shown in Fig. 2, the metallization VIA 7 that diameter 0.5mm is processed around circuit forms coplanar waveguide structure.
Claims (2)
1. a kind of calibration network applied to 3.5G frequency range TD antenna for base station, it is characterised in that：Calibration network includes multiple Weirs
The gloomy power splitter of gold and directional coupler, multiple Wilkinson power dividers and multiple directional couplers are located on calibration network pcb board,
Calibration network pcb board is fixed on shape of chinese word Ji installing plate, and shape of chinese word Ji installing plate is equipped with to turn up and turn in the one side of close radiating element
Side；The total input port of power splitter be calibration port, directional coupler be antenna radio-frequency signal input port, the calibration
Network is designed with 100 ohm chip resistors in power splitter branch location, has 50 ohm of patches in power splitter afterbody tip designs
Sheet resistance.
2. it is applied to the calibration network of 3.5G frequency range TD antenna for base station as described in claim 1, it is characterised in that：The Weir
The gloomy power splitter of gold and directional coupler circuit use coplanar waveguide form；In directional coupler part, by adjusting both ends micro-strip
Gap size between line adjusts the size of coupled signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721468544.6U CN207399219U (en) | 2017-11-07 | 2017-11-07 | A kind of calibration network applied to 3.5G frequency range TD antenna for base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721468544.6U CN207399219U (en) | 2017-11-07 | 2017-11-07 | A kind of calibration network applied to 3.5G frequency range TD antenna for base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207399219U true CN207399219U (en) | 2018-05-22 |
Family
ID=62325045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721468544.6U Active CN207399219U (en) | 2017-11-07 | 2017-11-07 | A kind of calibration network applied to 3.5G frequency range TD antenna for base station |
Country Status (1)
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| CN (1) | CN207399219U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768549A (en) * | 2018-08-10 | 2018-11-06 | 昆山恩电开通信设备有限公司 | A kind of multiple antennas calibration network device applied to 5G communications |
| CN109600176A (en) * | 2018-12-29 | 2019-04-09 | 京信通信技术(广州)有限公司 | Signal shunt circuit and calibration network |
| CN110198172A (en) * | 2019-07-05 | 2019-09-03 | 深圳市深大唯同科技有限公司 | A kind of calibration network and antenna for base station of array antenna |
-
2017
- 2017-11-07 CN CN201721468544.6U patent/CN207399219U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768549A (en) * | 2018-08-10 | 2018-11-06 | 昆山恩电开通信设备有限公司 | A kind of multiple antennas calibration network device applied to 5G communications |
| CN108768549B (en) * | 2018-08-10 | 2023-09-19 | 昆山恩电开通信设备有限公司 | Multi-antenna calibration network device applied to 5G communication |
| CN109600176A (en) * | 2018-12-29 | 2019-04-09 | 京信通信技术(广州)有限公司 | Signal shunt circuit and calibration network |
| CN110198172A (en) * | 2019-07-05 | 2019-09-03 | 深圳市深大唯同科技有限公司 | A kind of calibration network and antenna for base station of array antenna |
| CN110198172B (en) * | 2019-07-05 | 2024-05-24 | 中天宽带技术有限公司 | Calibration network of array antenna and base station antenna |
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