CN103618125B - A kind of wideband high-power low-loss annular power distribution synthesizer - Google Patents
A kind of wideband high-power low-loss annular power distribution synthesizer Download PDFInfo
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- CN103618125B CN103618125B CN201310589944.2A CN201310589944A CN103618125B CN 103618125 B CN103618125 B CN 103618125B CN 201310589944 A CN201310589944 A CN 201310589944A CN 103618125 B CN103618125 B CN 103618125B
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Abstract
The invention provides a kind of wideband high-power low-loss annular power distribution synthesizer, comprise a power division ring and at least one shading ring, described shading ring is positioned at the outside of described power division ring. Adopt such scheme, there is low-loss, broadband character, and there is very high amplitude-phase consistency between two branch roads. Utilize the operation principle of circuited microstrip loop electric bridge, can effectively solve the problem that isolation resistance power capacity problem in traditional Wilkinson power division/synthesizer and insertion loss increase.
Description
Technical field
The invention belongs to annular power distribution synthesizer technical field, in particular a kind of broadband is largePower low-loss annular power distribution synthesizer.
Background technology
The efficient broadband power synthetic technique of microwave signal is that large power test system, microwave and millimeter wave are logicalThe important component part in multiple fields such as communication system and electromagnetic compatibility test is to solve microwave current millimeterRipple universal signal source power output is little, cannot meet high-power signal needs waits the key technology of problem.
Planar power synthesizer is a kind of by a synthetic multichannel input signal energy road signal energy outputMicrowave and millimeter wave circuit, also Jiang Yi road signal energy is divided into multichannel output conversely, now also can claimFor power divider. Traditional microwave and millimeter wave planar power distributes and combiner circuit is all generally to useLange coupler or Wilkinson power splitter add quarter-wave transformer to be realized. It mainly lacksPoint is, in the time that working frequency range is widened, divides the joint number of branch road and increases due to merit, causes path to lengthen, and damagesConsumption strengthens, and while especially application as power synthesis circuit, high loss will directly cause power combined coefficientReduction greatly.
Figure 1 shows that the principle signal of the more piece Wilkinson power splitter of a two-way equal proportion distributionFigure. This structure is plane three-port network, after electromagnetic wave signal is entered by input port 12, through oneJoint merit divides loop 100 or more piece merit to divide after loop 100 and 200, by two output ports 10,11 etc.The output of ratio same-phase. In order to increase between working band width and two output ports 10 and 11Isolation, just must solve by the joint number that increases isolation resistance, but because power in this structure dividesJoin loop and overlap with separate loop, therefore, when merit is divided and when separate loop joint number increases, will cause meritRate distributes/synthesizes the loss of path to increase, thereby power division/synthetic efficiency is declined rapidly.
Existing planar circuit power division/synthetic technology, taking Wilkinson power division/synthesizer asExample, although it adopts multi-section structure can obtain wider working band and higher isolation, it lacksPoint is along with the increase of joint number, and its insertion loss increases sharply thereupon, has caused power division and syntheticEfficiency reduces greatly; In addition, because power division loop in this structure overlaps with separate loop, loopInner isolation resistance is subject to the restriction of overall structure size, cannot accomplish increasing heat radiation area, therefore,Power capacity is very limited. Ruo Yi road amplifier is damaged, or in two branch roads any oneWhen the port match of branch road is bad, the power that the electromagnetic wave of its port reflection is added to isolation resistance two ends withIncrease, be therefore difficult to ensure that isolation resistance is not burnt because of high-power, although can be by by micro-Be replaced by thick-film resistor to increase its power capacity with the film resistor on circuit, but increasing costMeanwhile, radiating efficiency is difficult to effectively improve, thereby has caused this structure at high power work or endWhen mouth mismatch, reliability reduces.
Therefore, there is defect in prior art, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of broadband largePower low-loss annular power distribution synthesizer.
Technical scheme of the present invention is as follows:
A kind of wideband high-power low-loss annular power distribution synthesizer, wherein, comprises that a power dividesJoin ring and at least one shading ring, described shading ring is positioned at the outside of described power division ring.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described shading ring is establishedBe set to one.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described power divisionAn input port and two output ports are set on ring; Described two output ports pass through Section PointAnd the 3rd node be connected with described power division ring; Described shading ring setting is by the 4th node and theFive nodes are connected with described power division ring; Described Section Point and described the 4th node are positioned at a side,Described the 3rd node and described the 5th node are positioned at opposite side.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described Section PointIdentical with described the 3rd node phase place; Described the 4th node identical with described the 5th node phase place and all withDescribed input port is anti-phase; Path difference between described the 4th node and described the 5th node is half-wavelength;Path difference between described Section Point and described the 4th node is quarter-wave.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described the 4th nodeAnd between described the 5th node, the film resistor of connecting is set.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described shading ring is establishedBe set to 2-4.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, on described shading ringAll being symmetrical arranged two nodes is connected with described power division ring or described shading ring.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described two nodesBetween the film resistor of connecting respectively.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described power divisionRing and described shading ring are all set to axial symmetry.
Adopt such scheme:
1, there is low-loss, broadband character, and between two branch roads, have very high consistentProperty. Utilize the operation principle of circuited microstrip loop electric bridge, can effectively solve traditionalIsolation resistance power capacity problem and insertion in Wilkinson power division/synthesizerThe problem that loss increases.
2, solve power division with synthetic in broadband, high reliability, high efficiency and low-loss,At microwave and millimeter wave frequency band, because separate loop no longer overlaps with power division loop,But outside power division loop, therefore, path loss can be along with shading ringThe increase of joint number and increasing, and owing to can increasing comparatively easily isolation resistanceArea, makes the electromagnetic wave of forward transmission and the heat that back wave produces on isolation resistanceThe conduction efficiency of amount effectively improves, even if therefore isolation resistance employing is thin-film electroResistance, also has good radiating efficiency, thus greatly improved this arrangement works canLean on property.
3,, under equivalent constructions size, have than traditional Wilkinson power division/synthesizerHigher interport isolation, the lower advantage such as path loss and larger power capacity;Meanwhile, can also or change by the radius of the joint number of change shading ring, adjusting shading ringThe method that becomes isolation resistance resistance, realizes different working frequency range and difference easilyThe interport isolation of index request, structural design of the present invention is simple, easy to adjust, toolThere is very strong engineering practicability.
Brief description of the drawings
Fig. 1 is the schematic diagram of power splitter in prior art.
Fig. 2 is the present invention's annular power distribution synthesizer one embodiment schematic diagram.
Fig. 3 is another embodiment schematic diagram of the present invention's annular power distribution synthesizer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
The structural representation of annular power division/synthetic technology of the present invention as shown in Figure 2. ShouldThe ingenious operation principle that combines circuited microstrip loop electric bridge of structure, its entirety is mainly by a power division ringAnd one or more shading ring compositions. It is by Microstrip Loop Shang tetra-tunnel branches in traditional circuited microstrip loop electric bridgeArchitecture advances Wei Wu road branched structure increases node 5 between node 3 and node 4 again. Make jointPath difference between point 5 and node 3 is quarter-wave λ g/4, and between node 5 and node 4Path difference be half wavelength lambda g/2. The impedance of power division ring is 50 Ω impedancesDoubly, its ringRadius is about the quarter-wave λ g/4 of centre frequency. When electromagnetic wave is inputted by input port 12,Identical with the phase place of node 3 and point output such as power because electromagnetic wave arrives node 2, therefore generalThe two-way that node 2 is connected with node 3 is as two output channels of power division/synthesizer, its endMouth is called respectively output port 10 and output port 11. Owing to arriving the electromagnetic wave of node 4 and node 5Amplitude and phase place all identical and all anti-phase with node 1 place, and node 4 and node 5 places, with respect to defeatedEnter the node 1 of end for isolation end, therefore between two nodes, can connect one by shading ring 22Film resistor 6, to play the effect of isolation to two output branch roads at node 2 and node 3 places. DefeatedArc angle on outbound port 10 and output port 11 is 120 degree, and on shading ring, arc angle is 150Degree, the radius of their arcs is easy to try to achieve according to geometrical relationship.
Embodiment 2
On the basis of above-described embodiment, as shown in Figure 3, the present invention also provides its entirety mainly by oneIndividual power division ring 21 and two shading ring 22 and 23 compositions. Power division ring 21 is connected twoRoad is as two output channels of power division/synthesizer, its port be called respectively output port 10 withOutput port 11. The film resistor 6 of connecting on shading ring 22 connects one on shading ring 23Individual film resistor 7, the signal that is loaded into isolation resistance two ends is very little, therefore the power consumption of isolation resistance carrying veryLittle, thus power capacity and the reliability of this structure improved. Meanwhile, due to can be comparatively easilyRegulate isolation resistance area, therefore isolation resistance is also without making thick-film resistor, thereby reduced productionCost.
Embodiment 3
On the basis of above-described embodiment, further illustrate a kind of wideband high-power low-loss annular meritRate is distributed synthesizer, wherein, comprises a power division ring and at least one shading ring, described isolationRing is positioned at the outside of described power division ring.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described shading ring is establishedBe set to one.
Described wideband high-power low-loss annular power distribution synthesizer, wherein, described power divisionAn input port and two output ports are set on ring; Described two output ports pass through Section PointAnd the 3rd node be connected with described power division ring; Described shading ring setting is by the 4th node and theFive nodes are connected with described power division ring; Described Section Point and described the 4th node are positioned at a side,Described the 3rd node and described the 5th node are positioned at opposite side. Described Section Point and described the 3rd nodePhase place is identical with amplitude; Described the 4th node identical with described the 5th node phase place and all with described inputPort is anti-phase; Path difference between described the 4th node and described the 5th node is half-wavelength; DescribedPath difference between two nodes and described the 4th node is quarter-wave. Described the 4th node and instituteState a film resistor of series connection is set between the 5th node. Described shading ring is set to 2-4. DescribedOn shading ring, being all symmetrical arranged two nodes is connected with described power division ring or described shading ring. InstituteState the film resistor of connecting respectively between two nodes. Described power division ring and described shading ringAll be set to axial symmetry.
In sum, very little owing to being loaded into the signal at isolation resistance two ends in this technical scheme, therefore everyPower consumption from resistance carrying is very little, thereby has improved power capacity and the reliability of this structure. Meanwhile,Owing to can regulating comparatively easily isolation resistance area, therefore isolation resistance is also without making thick film electricityResistance, thus production cost reduced. In addition, distribute the side of ring and shading ring radius by regulating powerMethod, is adjusted to different working frequency range very easily, can also pass through to increase the method for shading ring joint number,Increase very easily working band width, meanwhile, also can be by increasing shading ring joint number and regulating thinThe method of film resistance resistance improves two isolations between output branch road. Because shading ring is placed inThe outside of power division ring, therefore the increase of shading ring joint number can't increase by two power division branch roadsPath, thereby can not reduce the loss of power division or synthetic path.
Should be understood that, for those of ordinary skills, can be according to the above description in additionImprove or conversion, and all these improvement and conversion all should belong to the protection of claims of the present inventionScope.
Claims (6)
1. a wideband high-power low-loss annular power distribution synthesizer, is characterized in that:Comprise a power division ring and at least one shading ring, described shading ring is positioned at described power and dividesJoin the outside of ring, described shading ring is set to one, on described power division ring, arrange one defeatedInbound port and two output ports, described two output ports are by Section Point and the 3rd nodeBe connected with described power division ring, described shading ring setting is by the 4th node and the 5th nodeBe connected with described power division ring, described Section Point and described the 4th node are positioned at a side,Described the 3rd node and described the 5th node are positioned at opposite side, described Section Point and the described the 3rdNode phase place is identical, and described the 4th node is identical with described the 5th node phase place and all with described defeatedInbound port is anti-phase, and the path difference between described the 4th node and described the 5th node is half-wavelength,Path difference between described Section Point and described the 4th node is quarter-wave.
2. wideband high-power low-loss annular power distribution synthesizer as claimed in claim 1,It is characterized in that: between described the 4th node and described the 5th node, the thin-film electro of connecting is setResistance.
3. wideband high-power low-loss annular power distribution synthesizer as claimed in claim 1,It is characterized in that: described shading ring is set to 2-4.
4. wideband high-power low-loss annular power distribution synthesizer as claimed in claim 3,It is characterized in that: on described shading ring, be all symmetrical arranged two nodes and described power division ring orDescribed shading ring is connected.
5. wideband high-power low-loss annular power distribution synthesizer as claimed in claim 4,It is characterized in that: the film resistor of connecting respectively between described two nodes.
6. the annular of the wideband high-power low-loss as described in claim 2 or 5 power division is closedGrow up to be a useful person, it is characterized in that: described power division ring and described shading ring are all set to axial symmetry.
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| CN113540727B (en) * | 2021-06-30 | 2022-05-17 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Frequency selective microstrip shunt |
Citations (3)
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| US4636755A (en) * | 1984-07-26 | 1987-01-13 | Motorola, Inc. | High-ratio, isolated microwave branch coupler with power divider, phase shifters, and quadrature hybrid |
| CN102084538A (en) * | 2008-07-07 | 2011-06-01 | 希达尔天线顾问股份公司 | Waveguides and transmission lines in gaps between parallel conducting surfaces |
| CN102804485A (en) * | 2009-05-20 | 2012-11-28 | 加利福尼亚大学董事会 | Diplexer synthesis using composite right/left-handed phase-advance/delay lines |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4636755A (en) * | 1984-07-26 | 1987-01-13 | Motorola, Inc. | High-ratio, isolated microwave branch coupler with power divider, phase shifters, and quadrature hybrid |
| CN102084538A (en) * | 2008-07-07 | 2011-06-01 | 希达尔天线顾问股份公司 | Waveguides and transmission lines in gaps between parallel conducting surfaces |
| CN102804485A (en) * | 2009-05-20 | 2012-11-28 | 加利福尼亚大学董事会 | Diplexer synthesis using composite right/left-handed phase-advance/delay lines |
Non-Patent Citations (1)
| Title |
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| Novel Dual-Band Power Divider with Three Transmission Zeros Using 180-Degree Line Sections;Guan-Ting Zhou et al.;《Proceedings of APMC 2012》;20121207;第181页第1栏倒数第1段至第183页第1栏第1段，图1、4 * |
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Effective date of registration: 20190226 Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: China Electronics Technology Instrument and Meter Co., Ltd. Address before: 266555 No. 98 Xiangjiang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: The 41st Institute of CETC |
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Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee before: CHINA ELECTRONIC TECHNOLOGY INSTRUMENTS Co.,Ltd. |
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