CN102820509A - Waveguide type three-way equipower divider/synthesizer - Google Patents
Waveguide type three-way equipower divider/synthesizer Download PDFInfo
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- CN102820509A CN102820509A CN2012103150374A CN201210315037A CN102820509A CN 102820509 A CN102820509 A CN 102820509A CN 2012103150374 A CN2012103150374 A CN 2012103150374A CN 201210315037 A CN201210315037 A CN 201210315037A CN 102820509 A CN102820509 A CN 102820509A
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Abstract
The invention discloses a waveguide type three-way equipower divider/synthesizer which comprises four T-shaped cavities and ports of four power divider/synthesizers. Each T-shaped cavity comprises a perpendicular port and two horizontal ports, triangular projections facing the perpendicular port are formed at the intersections of the perpendicular port and the two horizontal ports of each T-shaped cavity, the first T-shaped cavity is practically an equipower divider/synthesizer, the second T-shaped cavity and the third T-shaped cavity are practically unequal-power divider/synthesizers, and the fourth T-shaped cavity is practically an equipower divider/synthesizer. The waveguide type three-way equipower divider/synthesizer has the advantages of convenience in processing, mounting and implementation, small size, low insertion loss, wide bandwidth and the like.
Description
Technical field
The present invention relates to a kind of power division/synthesizer.
Background technology
Domestic and international many scholars have done deep research to three tunnel power division/synthesizer.Aspect planar circuit, people such as Jui-Chieh Chiu have designed a kind of microstrip coupled line power splitter, utilize nine coupling lines, use two isolation resistances, insert loss less than 4.9dB at 2.4GHz, isolate greater than 17.5dB between three road ports.They utilize five microstrip coupled lines to realize a kind of three road power splitters in the Ka frequency range subsequently, insert loss less than 5.1dB at 30GHz, isolate greater than 17dB.Lin Li and Ke Wu utilize fan type microstrip line to realize a kind of three tunnel power division/synthesizer at Ka frequency range low side, reach 79.5% in the 25GHz combined coefficient.If design three road power splitters with this, then need add matched load, but line length is longer, volume is big slightly.
Advantage is widely used at millimeter wave frequency band the power division/synthesizer of waveguide form so that its loss is little etc.The three road constant power distribution/synthesizers that University of Electronic Science and Technology utilizes the Waveguide branching coupler to realize in the Ka frequency range, return loss is superior to-20dB in the 28-32GHz scope, and the amplitude imbalance degree is less than 0.5dB, and phase unbalance degree is less than 7 degree.But owing to increased isolated port, need to add matched load, make volume bigger than normal, processing request is higher.D.K.Panda and A.Chakraborty add tuned window in waveguide T type knot, realized a kind of equiphase three road power splitters, and return loss is less than-20dB in the 9.8-10.6GHz scope, but inband flatness is poor slightly, and bandwidth is narrower.
Summary of the invention
The waveguide three road constant power distribution/synthesizers that technical problem to be solved by this invention is a kind of convenient processing and installation, volume is little, Insertion Loss is little, be convenient to realize can solve traditional three tunnel power division/comprise network and cause the too high and situation of waste of the power output of power amplifier.
The present invention includes following technical scheme:
A kind of waveguide three road constant power distribution/synthesizers comprise the port of four T cavity and four power division/synthesizers;
Each T cavity comprises a vertical port and two horizontal ports, forms the triangular hill towards vertical port at vertical port with horizontal port intersection;
The vertical port of the one T cavity is as first port of power division/synthesizer; A horizontal port of the one T cavity links to each other with the vertical port of the 2nd T cavity, and another horizontal port of a T cavity links to each other with the vertical port of the 3rd T cavity; Signal power on two horizontal ports of the one T cavity is identical, and is signal power half the on the vertical port of a T cavity;
A horizontal port of the 2nd T cavity is as a horizontal port of the 4th T cavity; A horizontal port of the 3rd T cavity is as another horizontal port of the 4th T cavity; Another horizontal port of the 2nd T cavity is linked to each other with second port of power division/synthesizer; With the vertical port of the 4th T cavity the 3rd port, another horizontal port of the 3rd T cavity is linked to each other with the 4th port of power division/synthesizer as power division/synthesizer; Signal power on two horizontal ports of the 4th T cavity is identical, and is signal power half the on the vertical port of the 4th T cavity; Signal power on another horizontal port of said the 2nd T cavity is the twice of the signal power on the horizontal port of said the 2nd T cavity; Signal power on another horizontal port of said the 3rd T cavity is the twice of the signal power on the horizontal port of said the 3rd T cavity.
The port slot of integrally formed four T type grooves and four power division/synthesizers on a brass; The port slot of integrally formed four T type grooves and four power division/synthesizers on another piece brass; Then two blocks of brass are fitted together the port that forms four T cavity and four power division/synthesizers.
On every block of brass, form a plurality of installing holes.
The one T cavity is identical with the triangular hill structure of the 4th T cavity, and the pinnacle of said triangular hill is positioned at the center of T cavity.
The 2nd T cavity is identical with the triangular hill structure of the 3rd T cavity, and the center of T cavity is departed from the pinnacle of said triangular hill.
The present invention compared with prior art has following advantage:
The present invention adopts four T cavity to carry out cascade, adds triangular hill at T type knot place, to offset susceptance, plays tuning effect.Triangular hill not only can be widened bandwidth, and can regulate power-division ratios, thereby realizes constant power three tunnel distribution/synthesizers through cascade.The present invention compare with existing power division/synthesizer have convenient processing and installation, volume is little, Insertion Loss is little, broader bandwidth, be convenient to advantages such as realization.
Description of drawings
Fig. 1 is the wave-guide cavity wave structural representation of waveguide three road constant power distribution/synthesizers of the present invention;
Fig. 2 is the power division schematic diagram of waveguide three road constant power distribution/synthesizers of the present invention;
Fig. 3 is the whole schematic three dimensional views of waveguide three road constant power distribution/synthesizers of the present invention;
Fig. 4 is waveguide three road constant power distribution/synthesizer profiles of the present invention.
Embodiment
Just combine accompanying drawing that the present invention is done further introduction below.
As shown in Figure 1, be the wave-guide cavity wave structural representation of waveguide three road constant power distribution/synthesizers of the present invention, comprise the port of four T cavity and four power division/synthesizers.Each T cavity comprises a vertical port and two horizontal ports, forms the triangular hill towards vertical port at vertical port with horizontal port intersection; The vertical port of the one T cavity 1 is as first port one 1 of power division/synthesizer; A horizontal port of the one T cavity 1 links to each other with the vertical port of the 2nd T cavity 2, and another horizontal port of a T cavity 1 links to each other with the vertical port of the 3rd T cavity 3; Signal power on two horizontal ports of the one T cavity 1 is identical, and is signal power half the on the vertical port of a T cavity 1; A horizontal port of the 2nd T cavity 2 is as a horizontal port of the 4th T cavity 4; A horizontal port of the 3rd T cavity 3 is as another horizontal port of the 4th T cavity 4; Another horizontal port of the 2nd T cavity 2 is linked to each other with second port one 2 of power division/synthesizer; With the vertical port of the 4th T cavity 4 the 3rd port one 3, another horizontal port of the 3rd T cavity 3 is linked to each other with the 4th port one 4 of power division/synthesizer as power division/synthesizer; Signal power on 4 two horizontal ports of the 4th T cavity is identical, and is signal power half the on the vertical port of the 4th T cavity 4; Signal power on another horizontal port of said the 2nd T cavity 2 is the twice of the signal power on the horizontal port of said the 2nd T cavity; Signal power on another horizontal port of said the 3rd T cavity is the twice of the signal power on the horizontal port of said the 3rd T cavity.Said second port 2, the 3rd port 3 are parallel with the 4th port 4.Second port 2 and the 4th port 4 symmetries are positioned over the 3rd port 3 both sides.The center line of the center line of first port one and the 3rd port is on same straight line.
With Ka frequency range three road constant power distribution/synthesizers is example, and the size of above-mentioned parameter is as shown in table 1.
Table 1Ka frequency range three road constant power distribution/synthesizer sizes
| R | L1 | L2 | H1 | H2 | S |
| 2mm | 6mm | 5.8mm | 3mm | 2.95mm | 0.9mm |
Show that through the processing measured result in the 33-37GHz frequency range, Ka frequency range three road constant power distribution/synthesizers insert loss only less than 0.3dB, return loss is less than 15dB.
As shown in Figure 2, waveguide three road constant power distribution/synthesizers of the present invention can be divided into road signal through port one 1 input the signal of three road constant powers, and the signal of three road constant powers is exported through port one 2-14.Concrete operation principle is following: a T cavity is actual to be a constant power distribution/synthesizer, and the second and the 3rd T cavity is actual to be non-uniform power distributing and synthesing device, and the 4th T cavity is actual to be that a constant power synthesizes/distributor; The constant power distributor is divided into the radiofrequency signal of input the signal of amplitude such as two-way; The signal of amplitudes such as two-way wherein one the tunnel import the first unequal power distributor, the second unequal power distributor is imported on another road; The first unequal power distributor is divided into the first via signal and the second road signal with the signal of input; Wherein the amplitude of first via signal is the twice of the second road signal; The second unequal power distributor is divided into Third Road signal and the four road signal with the signal of input; Wherein the amplitude of the four road signal is the twice of Third Road signal; First via signal and the four road signal are exported as one the tunnel respectively; The second road signal and Third Road signal are exported through synthetic one road signal of constant power synthesizer, finally exported three tunnel amplitudes radiofrequency signal consistent with phase place, the constant power of accomplishing input signal distributes.Simultaneously, waveguide three road constant power distribution/synthesizers of the present invention also can synthesize one tunnel output with three road constant power signals; Detailed process and said process are opposite.
Waveguide three road constant power distribution/synthesizer overall structure materials of the present invention are brass, and its course of processing is following: as shown in Figure 3 on a brass port slot 21-24 of integrally formed four T type groove 31-34 and four power division/synthesizers; Likewise, the port slot of integrally formed four T type grooves and four power division/synthesizers on another piece brass; Then two brass are fitted together formation four T cavity 1-4 and the port one 1-14 of four power division/synthesizers as shown in Figure 3 through a plurality of installing holes 25.
Three tunnel power division of the present invention/synthesizer is used in combination with two tunnel power division/synthesizer, can be in practical application the way of power controlling distribution/comprise network flexibly, therefore, the present invention can be widely used among the high power combining amplifier.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (5)
1. waveguide three road constant power distribution/synthesizers comprise the port of four T cavity and four power division/synthesizers;
Each T cavity comprises a vertical port and two horizontal ports, forms the triangular hill towards vertical port at vertical port with horizontal port intersection;
The vertical port of the one T cavity is as first port of power division/synthesizer; A horizontal port of the one T cavity links to each other with the vertical port of the 2nd T cavity, and another horizontal port of a T cavity links to each other with the vertical port of the 3rd T cavity; Signal power on two horizontal ports of the one T cavity is identical, and is signal power half the on the vertical port of a T cavity.
A horizontal port of the 2nd T cavity is as a horizontal port of the 4th T cavity; A horizontal port of the 3rd T cavity is as another horizontal port of the 4th T cavity; Another horizontal port of the 2nd T cavity is linked to each other with second port of power division/synthesizer; With the vertical port of the 4th T cavity the 3rd port, another horizontal port of the 3rd T cavity is linked to each other with the 4th port of power division/synthesizer as power division/synthesizer; Signal power on two horizontal ports of the 4th T cavity is identical, and is signal power half the on the vertical port of the 4th T cavity; Signal power on another horizontal port of said the 2nd T cavity is the twice of the signal power on the horizontal port of said the 2nd T cavity; Signal power on another horizontal port of said the 3rd T cavity is the twice of the signal power on the horizontal port of said the 3rd T cavity.
2. a kind of waveguide three road constant power distribution/synthesizers as claimed in claim 1 is characterized in that: the port slot of integrally formed four T type grooves and four power division/synthesizers on a brass; The port slot of integrally formed four T type grooves and four power division/synthesizers on another piece brass; Then two blocks of brass are fitted together the port that forms described four T cavity and described four power division/synthesizers.
3. a kind of waveguide three road constant power distribution/synthesizers as claimed in claim 2 is characterized in that: on every block of brass, form a plurality of installing holes.
4. a kind of waveguide three road constant power distribution/synthesizers as claimed in claim 1 is characterized in that: a T cavity is identical with the triangular hill structure of the 4th T cavity, and the pinnacle of said triangular hill is positioned at the center of T cavity.
5. a kind of waveguide three road constant power distribution/synthesizers as claimed in claim 1 is characterized in that: the 2nd T cavity is identical with the triangular hill structure of the 3rd T cavity, and the center of T cavity is departed from the pinnacle of said triangular hill.
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| CN201210315037.4A CN102820509B (en) | 2012-08-30 | 2012-08-30 | Waveguide type three-way equipower divider/synthesizer |
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| CN201210315037.4A CN102820509B (en) | 2012-08-30 | 2012-08-30 | Waveguide type three-way equipower divider/synthesizer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346374A (en) * | 2013-06-20 | 2013-10-09 | 北京遥测技术研究所 | Unequal power waveguide E-T power divider |
| CN103956555A (en) * | 2014-05-06 | 2014-07-30 | 北京遥测技术研究所 | Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer |
| CN105390787A (en) * | 2015-12-16 | 2016-03-09 | 中国电子科技集团公司第四十一研究所 | Novel composite function gradient millimeter wave waveguide power distribution synthesizer |
| CN105680139A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Power divider structure |
| CN108054485A (en) * | 2017-12-11 | 2018-05-18 | 湖南时变通讯科技有限公司 | A kind of waveguide No. four power divider |
| CN108232394A (en) * | 2018-03-16 | 2018-06-29 | 成都锦江电子系统工程有限公司 | High-precision waveguide power divider and its processing method |
| CN110247141A (en) * | 2019-06-12 | 2019-09-17 | 南京邮电大学 | Millimeter waveguide triplexer |
| CN110247139A (en) * | 2019-06-11 | 2019-09-17 | 南京邮电大学 | A kind of millimeter wave radial waveguide triplexer |
| CN110752429A (en) * | 2019-11-06 | 2020-02-04 | 江苏晟嘉微电子科技有限公司 | Ultra-wideband odd-equal power dividing circuit and design method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346374A (en) * | 2013-06-20 | 2013-10-09 | 北京遥测技术研究所 | Unequal power waveguide E-T power divider |
| CN103346374B (en) * | 2013-06-20 | 2016-01-13 | 北京遥测技术研究所 | The one merit such as not divides waveguide E-T power splitter |
| CN103956555A (en) * | 2014-05-06 | 2014-07-30 | 北京遥测技术研究所 | Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer |
| CN105680139A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Power divider structure |
| CN105390787A (en) * | 2015-12-16 | 2016-03-09 | 中国电子科技集团公司第四十一研究所 | Novel composite function gradient millimeter wave waveguide power distribution synthesizer |
| CN105390787B (en) * | 2015-12-16 | 2018-03-27 | 中国电子科技集团公司第四十一研究所 | A kind of NEW TYPE OF COMPOSITE function gradual change millimeter waveguide power distribution synthesizer |
| CN108054485A (en) * | 2017-12-11 | 2018-05-18 | 湖南时变通讯科技有限公司 | A kind of waveguide No. four power divider |
| CN108232394A (en) * | 2018-03-16 | 2018-06-29 | 成都锦江电子系统工程有限公司 | High-precision waveguide power divider and its processing method |
| CN108232394B (en) * | 2018-03-16 | 2023-08-25 | 成都锦江电子系统工程有限公司 | High-precision waveguide power divider and processing method thereof |
| CN110247139A (en) * | 2019-06-11 | 2019-09-17 | 南京邮电大学 | A kind of millimeter wave radial waveguide triplexer |
| CN110247141A (en) * | 2019-06-12 | 2019-09-17 | 南京邮电大学 | Millimeter waveguide triplexer |
| CN110752429A (en) * | 2019-11-06 | 2020-02-04 | 江苏晟嘉微电子科技有限公司 | Ultra-wideband odd-equal power dividing circuit and design method |
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