CN102904654A - Ultra wide band small multi-channel calibrating network - Google Patents
Ultra wide band small multi-channel calibrating network Download PDFInfo
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- CN102904654A CN102904654A CN2012104142712A CN201210414271A CN102904654A CN 102904654 A CN102904654 A CN 102904654A CN 2012104142712 A CN2012104142712 A CN 2012104142712A CN 201210414271 A CN201210414271 A CN 201210414271A CN 102904654 A CN102904654 A CN 102904654A
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Abstract
The invention discloses an ultra wide band small multi-channel calibrating network which comprises a cavity, wherein a plurality of ultra wide band coupler units and a multichannel ultra wide band power equal divider unit are arranged in the cavity, the coupler units and the power equal divider unit are respectively arranged on two sides of the cavity and are separated by using a metal partitioning plate, isolation ports of the coupler units are internally provided with matching loads, and coupling ports of the coupler units are connected with a branch port of the power equal divider unit through a 50omega impedance guide pin in a through hole in the metal partitioning plate. According to the ultra wide band small multi-channel calibrating network provided by the invention, firstly, the working frequency range is increased from less than one octave directly to tens octaves; and secondly, a large-power switch matrix can be monitored and calibrated in real time; and the ultra wide band small multi-channel calibrating network has the advantages of compact structure and more quantity of channels.
Description
Technical field
The invention belongs to communication apparatus and radio-frequency technique field, be specifically related to a kind of calibration network of ultra broadband miniaturized multichannel.
Background technology
Along with the development of civilian mobile communication technology, the mobile communication network of various standards, different frequency of utilization scopes constantly drops into commercial the application.Bring the user simultaneously easily, bringing very large difficulty also for production, daily monitoring, maintenance and the calibration of mobile communication network equipment.
Existing and calibration network Patents mainly concentrates on the smart antenna field.Patent of invention [1] has been described a kind of calibration network of smart antenna by driving the coupling circuit of coupling window formula on the metallic plate, can guarantee that calibration port to the amplitude of antenna port and the consistency of phase place, satisfies the requirement of system.The calibration network device of the smart antenna of patent of invention [2], comprise calibration circuit board, this calibration circuit board is provided with the power divider that has at least two minutes road ports, with several directional couplers, each directional coupler is used for realizing signal coupling between a subarray radiating element of minute road port of power divider and smart antenna.The intelligent antenna calibration network that patent of invention [3] provides by directional coupler with every branch road in the constant power distributor respectively with corresponding feeding network in certain bar branch road be coupled, the inconsistency of feeding network itself is also calibrated, thereby improved the precision of calibration.The calibration network of patent [4] adopts the micro-strip coplanar waveguide structure, loads cross-couplings line, cancellation metal shielding box at the coupling line two ends of coupler.The described broadband calibration network of patent [5] comprises a two-sided printed circuit board (PCB), and cover described printed circuit board (PCB) wherein the one side on metal ground plane; Another side at described printed circuit board (PCB) is printed with one or more groups alignment unit.
The overwhelming majority of existing calibration network is operated in TD-SCDMA and LTE(Long Term Evolution thereof, Long Term Evolution) frequency range, its frequency band is narrower.The coupler unit that adopts is also mostly to be some arrowband couplers, such as branch line coupler and so on.For the calibration network of smart antenna, its power capacity is less, can't carry out real-time monitoring and calibration to the situation of transmission channel in real time.Long cable has also been adopted in the complex structure, particularly coupler unit of existing calibration network and the connection between the power splitter unit, has both increased cost, has increased again the volume of calibration network.Existing calibration network can only be accomplished at most 8 passages in addition.
[1] calibration network of smart antenna, application number/patent No.: 200610034285.6, invention designer: Hou Xiaoqiang;
[2] calibration network device of smart antenna, application number/patent No.: 200810026531.2, invention designer: Bu Binlong, Liu Peitao, Lai Zhanjun, Guo Jianjiang;
[3] a kind of intelligent antenna calibration network and calibration steps thereof, application number/patent No.: 200810068090.2, invention designer: Hou Xiaoqiang, Han Xiangzi;
[4] TD-SCDMA and TD-LTE intelligent antenna multi-channel broadband calibration network, application number/patent No.: 201010602922.1, invention designer: Fan Hongliang, Wang Xiaobin, Zhou Hongjuan, Chen Jinhu;
[5] a kind of broadband calibration network, application number/patent No.: 200920131117.8, invention designer: Bu Antao, Liu Qianchang, Zhou Jiejun.
Summary of the invention
Goal of the invention: the object of the invention is to for the deficiencies in the prior art, a kind of calibration network of ultra broadband miniaturized multichannel is provided, it has covered most civilian communication frequency bands, compact conformation, and volume is little, is fit to very much be installed on the standard rack.
Technical scheme: the calibration network of a kind of ultra broadband miniaturized multichannel of the present invention, comprise cavity, be provided with minute power splitter unit such as some ultra broadband coupler units, a multichannel ultra broadband in this cavity, coupler unit and power splitter unit lay respectively at the both sides of cavity, separated by metal partion (metp), the built-in matched load of the isolated port of coupler unit, the coupling port of coupler unit links to each other with the shunt port match of power splitter unit by 50 Ω impedance guide pins in the via hole on the metal partion (metp).
Further, described ultra broadband coupler unit comprises the little band plate of coupler, is provided with the transition line coupling line on the little band plate of described coupler, realizes that it is high-power, the characteristics of ultra broadband.
Further, described power splitter unit has adopted respectively the quarter-wave step impedance conversion of 3 grades, 7 grades and 10 grades successively in Wilkinson bisection circuit, avoided must adopting in the traditional circuit drawback of 10 grades of quarter-wave step impedance conversions.
Further, described 3 grades with 7 grades of quarter-wave step impedance conversions and 7 grades and 10 grades of quarter-wave step impedance conversions between all adopt the gradual change impedance line to be connected, realized that better the coupling between every grade of circuit connects, the structure of power splitter unit is compacter.
Further, be provided with medium between described guide pin and the via hole.
Further, described matched load is the resistance of 50 Ω.
Further, the little band plate upper surface of described coupler is disposed with liner plate and metal cover board, and lower surface is provided with lower liner plate, has the hole that is connected with coupling port on the gradual change coupling line for guide pin on the described lower liner plate.
Further, have successively the through hole of being convenient to weld guide pin and coupling port on the correspondence position of described upper liner plate and metal cover board.
The principle of above-mentioned calibration network is that a plurality of high-power communication signals are inputted from the input port of ultra broadband coupler unit respectively, and most energy are from its output port output and enter the high power switch matrix.And small signal energy is from the output of the isolated port of coupler unit, and by short guide pin respectively from the synthetic output of the input port (CAL port) of power splitter unit.
In the calibration network normal work period, the situation that the input port of power splitter unit (CAL port) can the Real-Time Monitoring input signal.
When the high power switch matrix regularly need to be calibrated, calibrating signal can enter from the input port of power splitter unit, through the output port output of coupler unit.Finally the high power switch matrix is calibrated.
The present invention compared with prior art, its beneficial effect is: the calibration network of ultra broadband miniaturized multichannel of the present invention at first is the increase of working frequency range scope, from octave of less than directly to ten octaves; Secondly, can monitor and calibrate powerful switch matrix in real time; And have compact conformation, the more advantage of number of active lanes.
Description of drawings
Fig. 1 is theory diagram of the present invention.
Fig. 2 is general assembly schematic diagram of the present invention.
Fig. 3 is described coupler unit schematic diagram.
Fig. 4 is the little band plate schematic diagram of described coupler.
Fig. 5 is the schematic diagram that described stepped impedance changes.
Fig. 6 is the connection diagram of described coupler unit and power splitter unit.
Embodiment
The below is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
Shown in Fig. 2 and 6, a kind of calibration network of ultra broadband miniaturized multichannel, comprise cavity 1, two-port is respectively arranged with upper cover plate 3 and lower cover 2 about it, the two ends, the left and right sides of two sides, front and back are respectively arranged with N Connector 6, the middle position of leading flank is provided with SMA type connector 7, be provided with 8 ultra broadband coupler units 5 in this cavity 1, minute power splitter unit 4 such as a multichannel ultra broadband, coupler unit 5 and power splitter unit 4 lay respectively at the both sides of cavity 1, by metal partion (metp) 18 separately, the resistance 10 of built-in 50 Ω of the isolated port of coupler unit 5, the coupling port of coupler unit 5 links to each other with the shunt port match of power splitter unit 4 by 50 Ω impedance guide pins 14 in the via hole on the metal partion (metp) 18, is provided with medium 15 between described guide pin 14 and the via hole.
Shown in Fig. 3 and 4, described ultra broadband coupler unit 5 comprises the little band plate 11 of coupler, is provided with gradual change coupling line 17 on the little band plate 11 of described coupler; Little band plate 11 upper surfaces of described coupler are disposed with liner plate 9 and metal cover board 8, and lower surface is provided with lower liner plate 13, have the hole that is connected with coupling port on the transition line coupling line 17 for guide pin 14 on the described lower liner plate 13; Have successively the through hole of being convenient to weld guide pin and coupling port on the correspondence position of described upper liner plate and metal cover board.
As shown in Figure 5, described power splitter unit is printed circuit board (PCB), it has adopted respectively the quarter-wave step impedance conversion of 3 grades, 7 grades and 10 grades successively in Wilkinson bisection circuit, 3 Wilkinson bisection circuit make this calibration network reach 8 passages, described 3 grades with 7 grades of quarter-wave step impedance conversions and 7 grades and 10 grades of quarter-wave step impedance conversions between all adopt the gradual change impedance line to be connected.
Above-mentioned calibration network operating frequency range is from 400MHz until 4GHz has covered most civilian communication frequency bands.
As mentioned above, although the specific preferred embodiment of reference has represented and has explained the present invention that it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make in the form and details various variations to it.
Claims (8)
1. the calibration network of a ultra broadband miniaturized multichannel, comprise cavity, it is characterized in that, be provided with minute power splitter unit such as some ultra broadband coupler units, a multichannel ultra broadband in this cavity, coupler unit and power splitter unit lay respectively at the both sides of cavity, separated by metal partion (metp), the built-in matched load of the isolated port of coupler unit, the coupling port of coupler unit links to each other with the shunt port match of power splitter unit by 50 Ω impedance guide pins in the via hole on the metal partion (metp).
2. the calibration network of ultra broadband miniaturized multichannel according to claim 1 is characterized in that, described ultra broadband coupler unit comprises the little band plate of coupler, is provided with the transition line coupling line on the little band plate of described coupler.
3. the calibration network of ultra broadband miniaturized multichannel according to claim 1 is characterized in that, described power splitter unit has adopted respectively the quarter-wave step impedance conversion of 3 grades, 7 grades and 10 grades successively in Wilkinson bisection circuit.
4. the calibration network of ultra broadband miniaturized multichannel according to claim 3 is characterized in that, described 3 grades with 7 grades of quarter-wave step impedance conversions and 7 grades and 10 grades of quarter-wave step impedance conversions between all adopt the gradual change impedance line to be connected.
5. the calibration network of ultra broadband miniaturized multichannel according to claim 1 is characterized in that, is provided with medium between described guide pin and the via hole.
6. the calibration network of ultra broadband miniaturized multichannel according to claim 1 is characterized in that, described matched load is the resistance of 50 Ω.
7. the calibration network of ultra broadband miniaturized multichannel according to claim 2, it is characterized in that, the little band plate upper surface of described coupler is disposed with liner plate and metal cover board, lower surface is provided with lower liner plate, has the hole that is connected with coupling port on the gradual change coupling line for guide pin on the described lower liner plate.
8. the calibration network of ultra broadband miniaturized multichannel according to claim 7 is characterized in that, has successively the through hole of being convenient to weld guide pin and coupling port on the correspondence position of described upper liner plate and metal cover board.
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| CN2012104142712A CN102904654A (en) | 2012-10-26 | 2012-10-26 | Ultra wide band small multi-channel calibrating network |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696322A (en) * | 2018-04-20 | 2018-10-23 | 京信通信系统（中国）有限公司 | Antenna calibration network device |
| CN108767458A (en) * | 2018-05-18 | 2018-11-06 | 成都泰格微波技术股份有限公司 | A kind of extensive mimo antenna of close coupling calibration function |
| CN109659653A (en) * | 2018-12-07 | 2019-04-19 | 中国船舶重工集团公司第七二四研究所 | A kind of high power multichannel Waveguide-microbelt synthesizer and implementation method |
| CN110031811A (en) * | 2019-05-13 | 2019-07-19 | 成都天奥技术发展有限公司 | The quickly calibrated system of multi-channel wide band signal coherent characteristic |
| CN111751795A (en) * | 2020-06-12 | 2020-10-09 | 中国船舶重工集团公司第七二四研究所 | Dielectric fin line microstrip antenna monitoring device |
| CN112784512A (en) * | 2020-12-30 | 2021-05-11 | 中国航天科工集团八五一一研究所 | Design method of ultra-wideband radio frequency power division feed network |
| CN114899572A (en) * | 2022-06-14 | 2022-08-12 | 中航富士达科技股份有限公司 | Directional coupling calibration network |
| CN112784512B (en) * | 2020-12-30 | 2024-05-03 | 中国航天科工集团八五一一研究所 | Ultra-wideband radio frequency power division feed network design method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696322A (en) * | 2018-04-20 | 2018-10-23 | 京信通信系统（中国）有限公司 | Antenna calibration network device |
| CN108696322B (en) * | 2018-04-20 | 2024-01-30 | 京信通信技术(广州)有限公司 | Antenna calibration network device |
| CN108767458A (en) * | 2018-05-18 | 2018-11-06 | 成都泰格微波技术股份有限公司 | A kind of extensive mimo antenna of close coupling calibration function |
| CN109659653A (en) * | 2018-12-07 | 2019-04-19 | 中国船舶重工集团公司第七二四研究所 | A kind of high power multichannel Waveguide-microbelt synthesizer and implementation method |
| CN109659653B (en) * | 2018-12-07 | 2021-08-06 | 中国船舶重工集团公司第七二四研究所 | High-power multi-path waveguide microstrip synthesizer and implementation method |
| CN110031811A (en) * | 2019-05-13 | 2019-07-19 | 成都天奥技术发展有限公司 | The quickly calibrated system of multi-channel wide band signal coherent characteristic |
| CN111751795A (en) * | 2020-06-12 | 2020-10-09 | 中国船舶重工集团公司第七二四研究所 | Dielectric fin line microstrip antenna monitoring device |
| CN112784512A (en) * | 2020-12-30 | 2021-05-11 | 中国航天科工集团八五一一研究所 | Design method of ultra-wideband radio frequency power division feed network |
| CN112784512B (en) * | 2020-12-30 | 2024-05-03 | 中国航天科工集团八五一一研究所 | Ultra-wideband radio frequency power division feed network design method |
| CN114899572A (en) * | 2022-06-14 | 2022-08-12 | 中航富士达科技股份有限公司 | Directional coupling calibration network |
| CN114899572B (en) * | 2022-06-14 | 2023-12-01 | 中航富士达科技股份有限公司 | Directional coupling calibration network |
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Application publication date: 20130130 |