CN103151593B - Novel equiphase power divider - Google Patents
Novel equiphase power divider Download PDFInfo
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- CN103151593B CN103151593B CN201310076373.2A CN201310076373A CN103151593B CN 103151593 B CN103151593 B CN 103151593B CN 201310076373 A CN201310076373 A CN 201310076373A CN 103151593 B CN103151593 B CN 103151593B
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- 230000008878 coupling Effects 0.000 claims abstract description 80
- 238000010168 coupling process Methods 0.000 claims abstract description 80
- 238000005859 coupling reaction Methods 0.000 claims abstract description 80
- 238000002955 isolation Methods 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims description 13
- 238000012545 processing Methods 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001808 coupling effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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Abstract
The present invention discloses Novel equiphase power divider, comprises coupling cavity, the input be communicated with coupling cavity, output terminals A, output B, isolation end; Input and isolation end are positioned at the front end face of coupling cavity, and output terminals A and output B are positioned at the rear end face of coupling cavity, and isolation end is positioned at the right side of input, and output B is positioned on the right side of output terminals A; Be provided with in coupling cavity and add carrier, add carrier and be arranged at least 1 row along with the front and back of input to the direction of axes normal, and along and the adjacent carrier that adds that arranges to axis direction of the front and back of input there is difference in height Huo and stand out, described in add the upper inwall of carrier and coupling cavity or lower inwall is connected.Power splitter of the present invention has the phase place advantage all consistent with amplitude, has that structure is simple, volume is little simultaneously, the feature that difficulty of processing is low.Military and the civil areas such as the present invention can be widely used in antenna array, phased array radar and power combing, missile guidance, communicate.
Description
Technical field
The present invention relates to a kind of power splitter.Specifically, relate to a kind ofly be loaded with novel two road power splitter, the i.e. Novel equiphase power divider that many add carrier.
Background technology
Power splitter is the general original paper of one in modern microwave communication and Military Electronics system.Waveguide power divider, due to features such as its power capacity are high, insertion loss is low, is applied very extensive.Two road waveguide power dividers both can be used alone, and also can form multichannel power division network, for fields such as phased array radar, antenna array and power combing by serial connection.Existing two road waveguide power dividers mainly comprise E-MianTXing branch, H-MianTXing branch, waveguide magic T, H-face kinds of Slot Coupled Waveguide Hybrids etc.Wherein left two kinds of devices due to isolation between two outputs low, the mismatch of any one output port all can have a strong impact on amplitude and the phase accuracy of power division.Have good isolation between the output port of waveguide magic T, but the axis direction of its four waveguides points to three mutually perpendicular directions respectively, form complicated 3-D solid structure, difficult processing, cost is high, and device is all larger in length, width and height three directions, is unfavorable for the miniaturization of device.The axis of the input and output waveguide of H-face kinds of Slot Coupled Waveguide Hybrids is positioned at same plane, but there is the too narrow shortcoming of bandwidth.The relative bandwidth of operation of the H-face kinds of Slot Coupled Waveguide Hybrids reported is less than 25%.
Summary of the invention
The object of the invention is to overcome to cause due to the three-dimensional labyrinth of waveguide cross-over connection, needs that intersect that infall volume increases, machining accuracy reduction and the series of problems such as phase place is inconsistent, provide and a kind ofly in one plane can realize waveguide cross-over connection, Cross transfer and the consistent Novel equiphase power divider of phase place.
To achieve these goals, the technical solution used in the present invention is as follows: to achieve these goals, the technical solution used in the present invention is as follows: Novel equiphase power divider, it is characterized in that: comprise coupling cavity, the input be communicated with coupling cavity, output terminals A, output B, isolation end; Input and isolation end are positioned at the front end face of coupling cavity, and output B and output terminals A are positioned at the rear end face of coupling cavity, and front end face and rear end face are coupling cavity two end faces in opposition to each other, and isolation end is positioned at the right side of input, and output is positioned on the right side of output terminals A; Be provided with in coupling cavity and add carrier, adding carrier is axis column in the vertical direction; Add carrier to arrange along being arranged at least 1 row with the front and back of input to the direction that axis direction is vertical and adding carrier along the sagittal axis of input; Described add carrier and coupling cavity upper inwall or lower inwall be connected.
Above-mentioned front and back are the axis being pointed to rear end face by front end face to axis.When specifically arranging, coupling cavity in the present invention is made up of 3 parts, be respectively left coupling cavity and right coupling cavity and the coupling aperture being communicated with left coupling cavity and right coupling cavity, the front and back of left coupling cavity and right coupling cavity are parallel to each other to axis, and coupling aperture is between left coupling cavity and right coupling cavity.Like this when exporting phase place and being consistent, can in one plane realize waveguide cross-over connection, Cross transfer.Wherein left coupling cavity one end connects input, the other end connects output terminals A, and right coupling cavity one end connects output B, the other end connects isolation end; Input is positioned at isolation end left, and output terminals A is positioned at output B left.Coupling cavity and the input be communicated with it, output terminals A, output B, isolation end form an X-shaped shape, to realize space-saving object in same plane.
In order to regulate coupling effect, adding to axis direction arrangement adjacent before and after input and between carrier, there is difference in height and or stand out.
The left surface of described coupling cavity or and right flank all arrange at least 1 and have metal bump, the protrusion direction of metal bump is pointed in coupling cavity or outside coupling cavity
.
For the ease of processing and test, in input, output terminals A, output B, isolation end, have at least a port that the one end away from coupling cavity is provided with matched waveguide.
Further, for the ease of processing and assembling, reduce processing request, the upper surface of the upper surface of input, the upper surface of output terminals A, output B, the upper surface of isolation end, the upper surface of coupling cavity, the upper surface of matched waveguide are all positioned at same plane.
Arrange along the front and back of input to axis direction adjacent add carrier before there is zero clearance, and to add carrier be metal column or be dielectric posts.Add carrier and overlook the cross section in direction for circular or rectangle.
The shape of cross section of input, output terminals A, output B, isolation end is rectangle.
In order to broadening device bandwidth of operation, control phase and strengthen its coupling effect and make power splitter reach the effect of 3dB power splitter, be provided with in coupling cavity and add carrier, and to add carrier be axis column in the vertical direction, add carrier and be arranged at least 1 row along with the front and back of input to the direction of axes normal, and add carrier and there is difference in height Huo and stand out along the front and back of input to axis direction.Described add carrier and coupling cavity upper inwall or lower inwall be connected.
The width of coupling cavity has at least 1 change along the axis direction of input.Namely the left internal side Huo of described coupling cavity and right inside side are provided with metal bump, and the protrusion direction of metal bump is pointed in coupling cavity or outside coupling cavity.Metal bump is change arbitrarily, can be rectangular column, circular columns or other obform bodies.
Maximum feature of the present invention in coupling cavity, is provided with 7 add carrier, regulates the phase velocity between the different mode of signal in coupling cavity and be coupled by adding carrier, makes the power output of device and phase place all consistent, and bandwidth of operation is improved.
Operation principle of the present invention can be summarized as follows when the input and output waveguide of the coupling cavity of rectangle and rectangle: input and output waveguide described herein, i.e. input/output terminal, specifically refer to input, output terminals A, output B, isolation end, the input of rectangle has mainly encouraged two waveguide mode of operations, i.e. TE10 pattern and TE20 pattern in the coupling cavity of rectangle.The ripple of these two patterns all will be propagated to axis direction before and after input.Because the guide wavelength of these two patterns is different, at the other end of coupling cavity, the power that output and coupled end place are coupled out from coupling cavity be the power that is coupled out from the ripple of two mode of operation TE10 patterns and TE20 pattern respectively and.By choosing width and the length of coupling cavity, and the size of each input/output terminal and position, the power sum that coupled end can be made to be coupled out from two mode of operations respectively meets certain designing requirement, the power phases difference simultaneously making isolation end be coupled out from two mode of operations is respectively 180 degree, cancels out each other.At this moment, all energy all export from output terminals A and output B substantially, and not from input reflection, also do not export from isolation end.In order to widen the bandwidth of operation of device further, the shape of coupling cavity, particularly width can suitably change along the axis of input, especially add carrier in the bottom of coupling cavity or top.Each input/output terminal can increase one or more levels ridge waveguide matched waveguide.
Above-mentioned front and back are the coupling cavity axis being pointed to rear end face by front end face to axis.
The invention has the advantages that: in one plane can realize waveguide cross-over connection, Cross transfer, phase place are consistent, power splitter of the present invention have phase place consistent and more than 11% relative bandwidth of operation, have that structure is simple, volume is little, the feature that difficulty of processing is low simultaneously.Military and the civil areas such as the present invention can be widely used in antenna array, phased array radar and power combing, missile guidance, communicate.
Accompanying drawing explanation
Fig. 1 is the vertical view of the present invention's (removing cover plate right).
Fig. 2 is the result of calculation curve of embodiment 1.
Fig. 3 is the phase curve of embodiment 1.
Label in figure is expressed as: 1, input: 2, output terminals A; 3, output B; 4, isolation end; 5, coupling cavity; 6, carrier is added; 7, matched waveguide.
In Fig. 1 ← represent left direction, → represent right direction, ↑ represent front to, ↓ represent rear to.
Embodiment
embodiment 1
As shown in Figure 1, comprise coupling cavity 5, the input 1 be communicated with coupling cavity 5, output terminals A 2, output B3, isolation end 4.Input 1 and isolation end 4 are positioned at the front end face of coupling cavity 5, and output B3 and output terminals A 2 are positioned at the rear end face of coupling cavity 5, and front end face and rear end face are coupling cavity two end faces in opposition to each other.Isolation end 4 is positioned at the right side of input 1, and output B3 is positioned on the right side of output terminals A 2.Be provided with in coupling cavity 55 rectangles add carrier 6 and 2 circular add carrier 6, adding carrier 6 is axis column in the vertical direction.The carrier 6 that adds of rectangle does not overlap along the sagittal axis of input 1; Described add carrier 6 and coupling cavity 5 upper inwall or lower inwall be connected.The right flank width of described coupling cavity 5 has 2 changes along the axis direction of input 1.The concrete lower medial surface being changed to coupling cavity 5 is provided with metal bump, and the protrusion direction of metal bump is pointed in coupling cavity 5.
Add to axis direction arrangement adjacent before and after input 1 and between carrier 6, to there is difference in height and or stand out.Input 1, output terminals A 2, output B3, isolation end 4 are all connected with coupling cavity 5 by one section of matched waveguide 7.
The upper surface of the upper surface of input 1, the upper surface of output terminals A 2, output B3, the upper surface of isolation end 4, the upper surface of coupling cavity 5, the upper surface of matched waveguide 7 are all positioned at same plane.
Adding carrier 6 overlooking the cross section on direction is rectangle or circle, and coupling cavity 5, input 1, output terminals A 2, output B3, isolation end 4 are cuboid.
Before the direction adjacent load body 6 that axis direction is vertical, there is zero clearance along with the front and back of input 1, and add carrier 6 for metal column or be dielectric posts.Add metal column that carrier 6 selects metal material to make in the present embodiment as the preferred version adding carrier 6.Adding carrier 6 can also be dielectric posts simultaneously.
The input 1 of rectangle has mainly encouraged two waveguide mode of operations, i.e. TE10 pattern and TE20 pattern in the coupling cavity 5 of rectangle.The ripple of these two patterns all will be propagated to axis direction before and after input 1.Because the guide wavelength of these two patterns is different, at the other end of coupling cavity 5, the power that output terminals A 2 and output B3 place are coupled out from coupling cavity 5 be the power that is coupled out from the ripple of two mode of operation TE10 patterns and TE20 pattern respectively and.By choosing width and the length of coupling cavity 5, and the size of each input/output terminal and position, the power sum that output B3 can be made to be coupled out from two mode of operations respectively meets certain designing requirement, the power phases difference simultaneously making isolation end 4 be coupled out from two mode of operations is respectively 180 degree, cancels out each other.At this moment, all energy all export from output terminals A 2 and output B3 substantially, and do not reflect from input 1, also do not export from isolation end 4.In order to widen the bandwidth of operation of device further, the shape of coupling cavity 5, particularly width can suitably change along the axis of input, especially add carrier 6 in the bottom of coupling cavity 5 or top.Each input/output terminal can increase one or more levels ridge waveguide matched waveguide 7.
Fig. 2 is the analog computation curve of the Novel equiphase power divider of embodiment 1.Therefrom can find out, in 26.5 ~ 29.5GHz frequency range, achieve a 3dB power splitter well.In figure, S11 represents the reflection coefficient of input 1, and S21 represents the transmission coefficient of output terminals A 2, and S31 represents the transmission coefficient of output B3, and S41 represents the isolating coefficient of isolation end 4.As can be seen from the curve distribution in figure, the Insertion Loss of this power splitter is less than 0.2dB, and fluctuation is less than 0.2dB.Each port reflects is all lower than-20dB, and the isolation between output is better than-20dB.The relative bandwidth of operation of this power splitter is 11%.
Fig. 3 is the phase curve figure of the Novel equiphase power divider of embodiment 1, as can be seen from figure we, the phase between output port is less than 2 °.Well achieve phase place all consistent with amplitude.So just not needing to add phase shifter carrys out control phase, thus the size of this power splitter is reduced greatly.
As mentioned above, better the present invention can be realized.
Claims (7)
1. Novel equiphase power divider, is characterized in that: comprise coupling cavity (5), the input (1) be communicated with coupling cavity (5), output terminals A (2), output B(3), isolation end (4); Input (1) and isolation end (4) are positioned at the front end face of coupling cavity (5), output B(3) and output terminals A (2) be positioned at the rear end face of coupling cavity (5), front end face and rear end face are coupling cavity two end faces in opposition to each other, isolation end (4) is positioned at the right side of input (1), output B(3) be positioned at output terminals A (2) right side; Be provided with in coupling cavity (5) and add carrier (6), add carrier (6) for axis column in the vertical direction; Add carrier (6) to arrange along being arranged at least 1 row with the front and back of input (1) to the direction that axis direction is vertical and adding carrier (6) along the sagittal axis of input (1); Described add carrier (6) and coupling cavity (5) upper inwall or lower inwall be connected; There is difference in height and/or stand out in adjacent the adding between carrier (6) arranged along the front and back of input (1) to axis direction; There is zero clearance before in the adjacent carrier (6) that adds arranged along the front and back of input (1) to axis direction.
2. Novel equiphase power divider according to claim 1, it is characterized in that: the left surface of described coupling cavity (5) or and right flank at least 1 metal bump is all set, the protrusion direction of metal bump point in coupling cavity (5) or coupling cavity (5) outward.
3. Novel equiphase power divider according to claim 1, is characterized in that: input (1), output terminals A (2), output B(3), have at least a port that the one end away from coupling cavity (5) is provided with matched waveguide (7) in isolation end (4).
4. Novel equiphase power divider according to claim 3, is characterized in that: the upper surface of input (1), the upper surface of output terminals A (2), output B(3) upper surface, the upper surface of isolation end (4), the upper surface of coupling cavity (5), the upper surface of matched waveguide (7) be all positioned at same plane.
5. according to the Novel equiphase power divider in claim 1-3 described in any one, it is characterized in that: add carrier (6) for metal column or for dielectric posts.
6. according to the Novel equiphase power divider in claim 1-3 described in any one, it is characterized in that: add carrier (6) and overlook the cross section in direction for circular or rectangle.
7. according to the Novel equiphase power divider in claim 1-3 described in any one, it is characterized in that: input (1), output terminals A (2), output B(3), the shape of the cross section of isolation end (4) is rectangle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076373.2A CN103151593B (en) | 2013-03-11 | 2013-03-11 | Novel equiphase power divider |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310076373.2A CN103151593B (en) | 2013-03-11 | 2013-03-11 | Novel equiphase power divider |
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| CN103151593A CN103151593A (en) | 2013-06-12 |
| CN103151593B true CN103151593B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103956555B (en) * | 2014-05-06 | 2016-06-29 | 北京遥测技术研究所 | A kind of Ka frequency range miniaturization waveguide three road constant power distribution synthesizer |
| CN104183896B (en) * | 2014-08-11 | 2016-11-09 | 电子科技大学 | Four-port device test structure for terahertz frequency band |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1331688A1 (en) * | 2002-01-29 | 2003-07-30 | Era Patents Limited | Waveguide |
| US6894579B2 (en) * | 2002-12-27 | 2005-05-17 | Harris Corporation | Circulators and isolators with variable operating regions |
| CN201038288Y (en) * | 2007-04-04 | 2008-03-19 | 成都赛纳赛德科技有限公司 | Capacitor loaded compact type waveguide filter |
| CN201540939U (en) * | 2009-10-27 | 2010-08-04 | 京信通信系统（中国）有限公司 | Improved waveguide broadside microwave frequency band combiner |
| US8324983B2 (en) * | 2010-10-11 | 2012-12-04 | Andrew Llc | Selectable coupling level waveguide coupler |
| CN201936985U (en) * | 2010-11-09 | 2011-08-17 | 摩比天线技术（深圳）有限公司 | Microwave combiner |
| CN102299396B (en) * | 2011-06-20 | 2014-02-26 | 京信通信系统（中国）有限公司 | Microwave frequency range combiner |
| CN102361118A (en) * | 2011-09-14 | 2012-02-22 | 苏州易特诺科技股份有限公司 | Combiner of rectangular waveguide |
| CN102637923A (en) * | 2012-04-16 | 2012-08-15 | 中国电子科技集团公司第十研究所 | Debugging-free circular waveguide screw circular polarizer |
| CN203085729U (en) * | 2013-03-11 | 2013-07-24 | 成都赛纳赛德科技有限公司 | Novel two-way power divider |
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