CN107482293A - A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer - Google Patents
A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer Download PDFInfo
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- CN107482293A CN107482293A CN201710621839.0A CN201710621839A CN107482293A CN 107482293 A CN107482293 A CN 107482293A CN 201710621839 A CN201710621839 A CN 201710621839A CN 107482293 A CN107482293 A CN 107482293A
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- plate
- directional coupler
- output end
- series feed
- earth plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2135—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using strip line filters
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Abstract
The present invention is a kind of high-power compact lamination etc. than series feed work(allocation/synthesizer.Present invention is mainly used for solve the problems, such as that the power bigger than series feed power splitter/synthesizer size, resistance to such as lamination are not high and insertion loss degree of balance measured result differs larger with Theoretical Design.The invention belongs to radar antenna feeder technical field.The invention is composed in series by multiple directional couplers and end are straight-through, meeting output end position requirement, position of mounting hole requirement, in the case of the requirement of radio-frequency power chip payload size, connected between multiple directional couplers using as far as possible short transmission line, directional coupler is made up of approximate quarter-wave biasing coupling strip line, a plurality of narrow line is etched in the coupled transfer section upper strata earth plate of each directional coupler, select several narrow line being bonded with conductive tape according to each output end insertion loss degree of balance measured value, the method can improve the insertion loss degree of balance, make measured result closer to Theoretical Design value.
Description
Technical field
The invention belongs to radar antenna feeder technical field, more particularly to a kind of series feed power splitter/synthesizer.
Background technology
In order to obtain high power solid state emitter, often can use certain bridge joint mixing synthesis network it is several even more
The method that more low-power level unit blocks combines.Multi-path power divider/synthesizer, turn into composition high power solid state transmitting
One of essential key element of machine.Same multi-path power divider/synthesizer often matches use.And present the power splitter of form
Generally using one-to-two distributor as elementary cell, multi-stage cascade, the power distribution on 2n roads is conveniently realized, wherein n is series.Compare
For, the power splitter of series feed form flexibly can combine any n low-power level unit block, and size is small, effect
Rate is high, is widely used in high power solid state emitter.Series feed power splitter/synthesizer is formed by multiple directional couplers concatenation.
This power splitter/synthesizer is reciprocal network, has and isolates between higher efficiency, good stationary wave characteristic and port.Medium
Series feed power splitter/the synthesizer of printed line uses wire cutting copper coin, and resistance to power is high but size is bigger than normal and is not easy to debug.It is laminated series feed work(point
Device/synthesizer is various informative, and size is also not quite similar, and has small volume, in light weight, homogeneity of product is preferable, reliability
The advantages that high, but universal resistance to power is not high, and printed board machining accuracy is limited to, insertion loss degree of balance measured result and reason
It is larger by design difference.Lamination that high-power, miniaturization is easily debugged again etc. is that composition is high-power than series feed power splitter/synthesizer
The ideal chose of solid state transmitter.
The content of the invention
The present invention is a kind of high-power compact lamination etc. than series feed work(allocation/synthesizer.Present invention is mainly used for solve three to ask
Topic, first for lamination etc. it is bigger than series feed power splitter/synthesizer size the problem of, second for lamination etc. than series feed power splitter/synthesis
The problem of resistance to power of device is not high, the 3rd is that insertion loss degree of balance measured result differs the problem of larger with Theoretical Design.
Technical scheme mainly has：Lamination etc. is determined than series feed power splitter/synthesizer by multiple different degrees of coupling
It is composed in series to coupler and end are straight-through, is meeting that output end position requirement, position of mounting hole requirement, radio-frequency power chip bear
In the case of carrying size requirement, connected between multiple directional couplers using as far as possible short transmission line, directional coupler is by approximation
Quarter-wave biasing coupling strip line is formed, input, output end, coupled end, isolation end and the lamination of directional coupler
The input of series feed power splitter is located on same laminate, and the coupled end of directional coupler is as the output for being laminated series feed power splitter
End, it is laminated the input and the upper strata earth plate and top dielectric of output end and each directional coupler isolation end of series feed power splitter
Plate is slotted, and transmission line form is microstrip line, and convenient welding, the coupled end of directional coupler, isolation end transmission line pass by interlayer
Defeated arrival coupled signal plate, is connected with the biasing coupling strip line of directional coupler, is grounded using four layers of printed board, including upper strata
Plate, lower floor's earth plate, signal main road plate and coupled signal plate, upper strata earth plate and lower floor's earth plate are in vertical direction on centre
Plane is symmetrical, and distance is less than quarter-wave between two layers of earth plate, and signal main road plate and coupled signal plate are vertical
Direction is symmetrical on mid-plane, and signal main road plate and coupled signal plate spacing much smaller than them and are closed between earth plate
Away from the premise of strip line is only capable of transmitting TEM moulds, signal main road plate is with closing on earth plate spacing for maximum, strip line thickness
More than skin depth, a plurality of narrow line is etched in the upper strata earth plate of the coupled transfer section of each directional coupler, narrow line is with coupling
The biasing coupling strip line of device is vertical, according to the selection of each output end insertion loss degree of balance measured value that several narrow line is conductive
Adhesive tape gluing, the upper strata earth plate and top dielectric plate open semicircle shape groove of series feed power splitter input and output end are laminated, inputted
End fluting radius is not less than output end fluting radius.
The present invention technical characterstic and remarkable advantage be：
1. lamination etc. is than series feed power splitter/synthesizer by the straight-through series connection of the directional coupler of multiple different degrees of coupling and end
Composition is more in the case where meeting output end position requirement, position of mounting hole requirement, the requirement of radio-frequency power chip payload size
Connected between individual directional coupler using as far as possible short transmission line, directional coupler biases strap by approximate quarter-wave
Shape line is formed, and lamination so formed etc. is smaller than series feed power splitter/synthesizer size, meets small form factor requirements；
2. the input, output end of directional coupler, coupled end, isolation end are located at being laminated the input of series feed power splitter
On same laminate, the coupled end of directional coupler is laminated the input of series feed power splitter as the output end for being laminated series feed power splitter
The upper strata earth plate and top dielectric plate of end and output end and each directional coupler isolation end fluting, transmission line form is micro-strip
Line, convenient welding, the coupled end of directional coupler, isolation end transmission line are transferred to up to coupled signal plate by interlayer, with orientation
The biasing coupling strip line of coupler is connected, therefore is all to be transferred to by interlayer up to output end per coupling output energy all the way,
Each interlayer hop bears that power is equal and 1/n of only general power, and it is defeated for series feed power splitter to bear prominent position
Enter end, the resistance to power capability for being laminated series feed power splitter depends on the resistance to power capability of input；
3. four layers of printed board are used, including upper strata earth plate, lower floor's earth plate, signal main road plate and coupled signal plate, on
Layer earth plate and lower floor's earth plate are symmetrical on mid-plane in vertical direction, and distance is less than four points between two layers of earth plate
One of wavelength, signal main road plate and coupled signal plate are symmetrical on mid-plane in vertical direction, signal main road plate and coupling
Signal plate spacing is closed much smaller than them and closes on earth plate spacing, on the premise of strip line is only capable of transmitting TEM moulds, signal main road
Plate is with closing on earth plate spacing for maximum, and strip line thickness is more than skin depth, therefore the resistance to power capability of input is high, meets
High power requirements；
4. a plurality of narrow line is etched in the upper strata earth plate of the coupled transfer section of each directional coupler, narrow line and coupler
It is vertical to bias coupling strip line, is selected according to each output end insertion loss degree of balance measured value by several narrow line conductive tape
Fitting, the method is simple to operate, can debug the output end insertion loss degree of balance, insertion loss degree of balance measured result is more connect
Nearly Theoretical Design value.
5. the upper strata earth plate and top dielectric plate open semicircle shape groove of the series feed power splitter input of lamination and output end, input
End fluting radius is not less than output end fluting radius, convenient processing, and the resistance to power capability of input is not less than output end.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is a kind of high-power compact lamination etc. than series feed work(allocation/synthesizer figure.Wherein, 1- laminations etc. are than series feed power splitter
Input, 2- mounting holes, 3- directional coupler inputs, 4- interlayer hops, the narrow lines of 5-, 6- directional couplers output
Than the output end or directional coupler coupled end of series feed power splitter, 9- radio-frequency power chips bear for end, 7- transmission lines, 8- laminations etc.
Carry, 10- directional coupler isolation ends, 11- directional couplers, 12- ends are led directly to, R- input semi-circular groove radiuses, r- outputs
Hold semi-circular groove radius.
Fig. 2 is laminar structure side view.Wherein, 13- upper stratas earth plate, 14- top dielectric plates, 15- signal main road plates,
16- middle levels dielectric-slab, 17- coupled signal plates, 18- layer dielectric plates, 19- lower floors earth plate.
Embodiment
A kind of high-power compact lamination of the present invention etc. is than series feed work(allocation/synthesizer, the following (ginseng of embodiment
See accompanying drawing)：
1. four layers of printed board are used, including upper strata earth plate 13, lower floor's earth plate 19, signal main road plate 15 and coupled signal
Plate 17, upper strata earth plate 13 and lower floor's earth plate 19 are symmetrical on mid-plane in vertical direction, between two layers of earth plate
Distance is less than quarter-wave, and signal main road plate 15 and coupled signal plate 17 symmetrically divide in vertical direction on mid-plane
Cloth, signal main road plate 15 much smaller than them and close on earth plate spacing with the spacing of coupled signal plate 17, are only capable of transmitting in strip line
On the premise of TEM moulds, signal main road plate 15 is more than skin depth with closing on earth plate spacing for maximum, strip line thickness, thus
It is determined that printing board parameter b, w, w0,s。
2. lamination etc. is more straight-through by 12 by the directional coupler 11 of multiple different degrees of coupling and end than series feed power splitter/synthesizer
Be composed in series, meet the status requirement of output end 8, the status requirement of mounting hole 2, radio-frequency power chip load 9 sizes requirement feelings
Under condition, connected between multiple directional couplers 11 using as far as possible short transmission line 7, directional coupler 11 is by approximate quarter-wave
Long biasing coupling strip line is formed, and lamination so formed etc. is smaller than series feed power splitter/synthesizer size, meets that miniaturization will
Ask.
3. according to lamination etc. than series feed power splitter/synthesizer series N, the coupling amount C of n-th grade of directional coupler is determinedn。
4. the input 3 of directional coupler, output end 6, coupled end 8, isolation end 10 and the input for being laminated series feed power splitter
On same laminate, the coupled end 8 of directional coupler is laminated series feed work(point as the output end 8 for being laminated series feed power splitter at end 1
The input 1 and output end 8 of device and the upper strata earth plate 13 and top dielectric plate 14 of each directional coupler isolation end 10 are slotted,
Transmission line form is microstrip line, and convenient welding, the coupled end 8 of directional coupler, the transmission line of isolation end 10 are transferred to by interlayer
Up to coupled signal plate 17, it is connected with the biasing coupling strip line of directional coupler, therefore is all logical per coupling output energy all the way
Cross interlayer to be transferred to up to output end 8, each interlayer hop 4 bears that power is equal and 1/n of only general power, bears power most
Big position is series feed power splitter input 1, and the resistance to power capability for being laminated series feed power splitter depends on the energy of resistance to power of input 1
Power.
5. according to the coupling amount C of n-th grade of directional couplern, determine the size of n-th grade of directional coupler.Directional coupler
Size calculation divides close coupling situation and weak coupling situation.
Wherein Z0For line characteristic impedance.εrFor printed board dielectric constant.
Close coupling situation calculation formula：
Close coupling situation need to meet condition：
Otherwise weak coupling situation calculation formula is used：
w0=w-wc
Meet under the conditions of weak coupling：
6. etch a plurality of narrow line 5, narrow line 5 and orientation in the upper strata earth plate of the coupled transfer section of each directional coupler 11
The biasing coupling strip line of coupler 11 is vertical.
7. establishing the illustraton of model than series feed power splitter/synthesizer such as lamination, simulation optimization is carried out using simulation software, it is determined that
Final size.
8. select several narrow line 5 being bonded with conductive tape according to each output end insertion loss degree of balance measured value, this
Method is simple to operate, can debug the insertion loss degree of balance of output end 8, makes insertion loss degree of balance measured result closer to theory
Design load.
9. the series feed power splitter input 1 of lamination and the upper strata earth plate 13 and top dielectric plate 14 of output end 8 can open half
Circular trough, input 1 slots radius R should be not less than the fluting of output end 8 radius r, convenient processing, and the energy of resistance to power of input 1
Power is not less than output end 8.
Claims (2)
1. a kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer, it is characterized in that：Lamination etc. is than series feed power splitter/synthesizer
It is composed in series by the directional coupler of multiple different degrees of coupling and end are straight-through, is meeting output end position requirement, mounting hole site
In the case of putting requirement, the requirement of radio-frequency power chip payload size, as far as possible short transmission line is used between multiple directional couplers
Connection, directional coupler are made up of approximate quarter-wave biasing coupling strip line, the input of directional coupler, output
End, coupled end, isolation end are located on same laminate with being laminated the input of series feed power splitter, the coupled end conduct of directional coupler
The output end of series feed power splitter is laminated, is laminated the input and output end and each directional coupler isolation end of series feed power splitter
Upper strata earth plate and top dielectric plate fluting, transmission line form is microstrip line, the coupled end of directional coupler, isolation end transmission line
It is transferred to up to coupled signal plate by interlayer, is connected with the biasing coupling strip line of directional coupler, uses four layers of printed board, bag
Upper strata earth plate, lower floor's earth plate, signal main road plate and coupled signal plate are included, upper strata earth plate and lower floor's earth plate are in Vertical Square
To symmetrical on mid-plane, distance is less than quarter-wave between two layers of earth plate, and signal main road plate and coupling are believed
Number plate is symmetrical on mid-plane in vertical direction, and signal main road plate is with coupled signal plate spacing much smaller than them with closing on
Earth plate spacing, on the premise of strip line is only capable of transmitting TEM moulds, signal main road plate is with closing on earth plate spacing for maximum, band
Shape line thickness is more than skin depth, and a plurality of narrow line is etched in the upper strata earth plate of the coupled transfer section of each directional coupler, narrow
Line is vertical with the biasing coupling strip line of coupler, is selected according to each output end insertion loss degree of balance measured value narrow by several
Line is bonded with conductive tape.
2. a kind of high-power compact according to claim 1 lamination etc. is than series feed work(allocation/synthesizer, it is characterized in that：Input
With the upper strata earth plate and top dielectric plate open semicircle shape groove of output end, input fluting radius is not less than output end fluting half
Footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621839.0A CN107482293A (en) | 2017-07-27 | 2017-07-27 | A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621839.0A CN107482293A (en) | 2017-07-27 | 2017-07-27 | A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer |
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| Publication Number | Publication Date |
|---|---|
| CN107482293A true CN107482293A (en) | 2017-12-15 |
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| CN201710621839.0A Pending CN107482293A (en) | 2017-07-27 | 2017-07-27 | A kind of high-power compact lamination etc. is than series feed work(allocation/synthesizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023154A (en) * | 2017-12-29 | 2018-05-11 | 京信通信系统（中国）有限公司 | A kind of strip line directional coupler and its degree of coupling adjusting method |
| US11889770B2 (en) | 2020-04-16 | 2024-01-30 | International Business Machines Corporation | Low loss conductive line using bridged conductor |
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| CN1246738A (en) * | 1998-09-01 | 2000-03-08 | 松下电器产业株式会社 | Power divider and power combiner |
| CN201134494Y (en) * | 2007-12-27 | 2008-10-15 | 奥雷通光通讯设备（上海）有限公司 | Strong coupling device with defect structure |
| CN101471475A (en) * | 2007-12-27 | 2009-07-01 | 奥雷通光通讯设备（上海）有限公司 | Strong coupler with harass shielding current structure |
| CN201498580U (en) * | 2009-08-25 | 2010-06-02 | 中国电子科技集团公司第十四研究所 | High-power serial power allocating/synthesizing device |
| CN105048049A (en) * | 2015-07-14 | 2015-11-11 | 南京理工大学 | S-band microwave quadrature power divider |
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2017
- 2017-07-27 CN CN201710621839.0A patent/CN107482293A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN1246738A (en) * | 1998-09-01 | 2000-03-08 | 松下电器产业株式会社 | Power divider and power combiner |
| CN201134494Y (en) * | 2007-12-27 | 2008-10-15 | 奥雷通光通讯设备（上海）有限公司 | Strong coupling device with defect structure |
| CN101471475A (en) * | 2007-12-27 | 2009-07-01 | 奥雷通光通讯设备（上海）有限公司 | Strong coupler with harass shielding current structure |
| CN201498580U (en) * | 2009-08-25 | 2010-06-02 | 中国电子科技集团公司第十四研究所 | High-power serial power allocating/synthesizing device |
| CN105048049A (en) * | 2015-07-14 | 2015-11-11 | 南京理工大学 | S-band microwave quadrature power divider |
Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023154A (en) * | 2017-12-29 | 2018-05-11 | 京信通信系统（中国）有限公司 | A kind of strip line directional coupler and its degree of coupling adjusting method |
| WO2019128215A1 (en) * | 2017-12-29 | 2019-07-04 | 京信通信系统（中国）有限公司 | Strip line directional coupler and coupling degree adjustment method thereof |
| US11889770B2 (en) | 2020-04-16 | 2024-01-30 | International Business Machines Corporation | Low loss conductive line using bridged conductor |
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Application publication date: 20171215 |