CN103107402A - H-plane waveguide power divider - Google Patents
H-plane waveguide power divider Download PDFInfo
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- CN103107402A CN103107402A CN2013100760166A CN201310076016A CN103107402A CN 103107402 A CN103107402 A CN 103107402A CN 2013100760166 A CN2013100760166 A CN 2013100760166A CN 201310076016 A CN201310076016 A CN 201310076016A CN 103107402 A CN103107402 A CN 103107402A
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Abstract
The invention discloses an H-plane waveguide power divider. The H-plane waveguide power divider comprises a coupling cavity, an input port, an isolation port B, an isolation port C, an isolation port A, an output port A and an output port B, wherein the input port, the isolation port B, the isolation port C, the isolation port A, the output port A and the output port B are communicated with the coupling cavity; and the input port is located at a front end face of the coupling cavity, the isolation port A is located at a rear end face of the coupling cavity, the front end face and the rear end face are two mutually-symmetrical opposite faces of the coupling cavity, the isolation port B and the isolation port C are respectively located at the two sides of the input port, and the output port A and the output port B are respectively located at the two sides of the isolation port A. The H-plane waveguide power divider further has the characteristics of simple structure, small volume and low processing difficulty. The H-plane waveguide power divider can be widely applied to the military and civilian fields of antenna arrays, phased-array radar, power synthesis, missile guidance, communications and the like.
Description
Technical field
The present invention relates to a kind of power splitter, specifically, relate to a kind of equiphase H-ground roll and lead two road power splitters.
Background technology
Power splitter is a kind of general original paper in modern microwave communication and Military Electronics system.The characteristics such as waveguide power divider is high due to its power capacity, insertion loss is low are used very extensive.Two road waveguide power dividers both can use separately, also can consist of the multichannel power division network by serial connection, were used for the fields such as phased array radar, antenna array and power is synthetic.Existing two road waveguide power dividers mainly comprise E-face T-shaped branch, H-face T-shaped branch, waveguide evil spirit T, H-face kinds of Slot Coupled Waveguide Hybrids etc.Wherein front two kinds of devices are because isolation between two outputs is low, and the mismatch of any one output port all can have a strong impact on amplitude and the phase accuracy of power division.Between the output port of waveguide evil spirit T, good isolation is arranged, and the phase place between two output ports is identical, but the axis direction of its four waveguides points to respectively three mutually perpendicular directions, become complicated 3-D solid structure, difficult processing, cost is high, and device is all larger aspect length and width Senior Three, is unfavorable for the miniaturization of device.Particularly waveguide evil spirit T is not suitable as unit serial connection formation multichannel power division network.The axis of the input and output waveguide of H-face kinds of Slot Coupled Waveguide Hybrids is positioned at same plane, can be connected in series thus all waveguide axis of formation and be positioned at conplane multichannel power division network.This power division network can be divided into base and cover plate, utilizes respectively traditional digital control milling technology disposable and convenient ground processing, and machining accuracy improves greatly, and processing cost reduces greatly.But, have 90 intrinsic degree phase differences between two output ports of existing H-face kinds of Slot Coupled Waveguide Hybrids.In the situation that require same-phase output, particularly when serial connection consists of the multichannel power division network, need to be to carrying out broadband compensation between the phase place of power splitter output ports at different levels.Particularly when multichannel power division network Miniaturization Design, phase compensating circuit can make device volume and design difficulty greatly improve.
Summary of the invention
The object of the present invention is to provide the identical H-ground roll of a kind of phase place to lead power splitter.
To achieve these goals, the technical solution used in the present invention is as follows: the H-ground roll is led power splitter, comprises coupling cavity, also comprises input port, isolated port B, isolated port C, isolated port A and the output port A, the output port B that are communicated with coupling cavity; Described input port is positioned at the front end face of coupling cavity, isolated port A is positioned at the rear end face of coupling cavity, front end face and rear end face are coupling cavity two opposites in opposition to each other, isolated port B and isolated port C lay respectively at the both sides of input port, and output port A, output port B lay respectively at isolated port A both sides; In input port, isolated port B, isolated port C, output port A and output port B, output port C, at least 3 port center electric field vertical components are greater than horizontal component.
Left inside wall at described coupling cavity is provided with left groove B, and the opening direction of left groove B sensing coupling cavity is inner; Right inside wall at described coupling cavity is provided with right groove C, and the opening direction of right groove C sensing coupling cavity is inner.
Described coupling cavity is the left-right symmetric shape, and described left groove B and right groove C arrange with respect to the coupling cavity left-right symmetric.
On described coupling cavity inwall or and lower inwall be provided with the coupling body that at least one regulates coupling use, upper inwall and lower inwall are coupling cavity two opposites in opposition to each other; Coupling body is groove or metal boss; It is inner that the opening direction of described groove points to coupling cavity, and it is inner that the protrusion direction of described metal boss is pointed to coupling cavity.
Coupling cavity is the left-right symmetric shape, groove A or metal boss in coupling cavity symmetry arrangement in the both sides of input port normal.Be groove A or metal boss take the front and back of input port to axis as the symmetry axis number etc. all symmetry arrangement in the both sides of these front and back to axis.
Described input port, isolated port B, isolated port C, isolated port A, output port A, output port B are rectangular waveguide or ridge waveguide or band line or coaxial configuration.General, the cross section of the cross section of the cross section of described input port, the cross section of isolated port B, isolated port C, the cross section of isolated port A, output port A, the cross section of output port B are rectangle.
Input port and isolated port A are the left-right symmetric shape, and the front and back of described input port are to the front and back of axis and isolated port A to dead in line.
Isolated port B and isolated port C arrange with respect to the normal left-right symmetric of input port, and output port A and output port B arrange with respect to the normal left-right symmetric of isolated port A; Coupling cavity is the left-right symmetric structure take the normal of input port as symmetry axis.General, to the axis symmetry arrangement, output port A and output port B arrange to the axis left-right symmetric with respect to the front and back of isolated port A with respect to the front and back of input port for isolated port B and isolated port C; Coupling cavity is the left-right symmetric structure take the front and back of input port to axis as symmetry axis.
Be provided with changeover portion on input port, isolated port B, isolated port C, isolated port A and output port A, output port B.
The upper surface of the upper surface of the upper surface of described input port, the upper surface of isolated port B, isolated port C and the upper surface of isolated port A, output port A, the upper surface of output port B all are positioned at same plane with the upper surface of coupling cavity.
It is the left-right symmetric structure with respect to the front and back of input port to axis that this H-ground roll is led power splitter.Front and back are the axis that front end face points to rear end face to axis.
In order to facilitate designing and calculating, coupling cavity is take the cuboid structure as good, and the cross section of the cross section of the cross section of input port, the cross section of isolated port B, isolated port C, the cross section of isolated port A, output port A, the cross section of output port B are all take rectangle as good.
For given design objective, comprise reflection coefficient, isolation, total insertion loss etc., in order to obtain wider bandwidth of operation, the width of coupling cavity can change according to certain rule to axis along the front and back of input port, and namely the left inside wall at described coupling cavity is provided with left groove B, and the opening direction of left groove B sensing coupling cavity is inner; Right inside wall at described coupling cavity is provided with right groove C, and the opening direction of right groove C sensing coupling cavity is inner; Described left groove B and right groove C carry out symmetry arrangement with respect to coupling cavity.Setting can obtain wider bandwidth of operation like this.
For further this H-ground roll of broadening is led the bandwidth of operation of power splitter, coupling cavity inside is provided with one or more groove A, and all groove A become left-right symmetric to distribute with the front and back of input port to axis.
For further this H-ground roll of broadening is led the bandwidth of operation of power splitter, coupling cavity inside can also arrange one or more metal boss, and all metal boss become left-right symmetric to distribute with the front and back of input port to axis.
Lead the coupling of each port of power splitter in order to improve this H-ground roll, be provided with changeover portion on input port, isolated port B, isolated port C, isolated port A and output port A, output port B.The width of changeover portion for change, also can be changeless for width.
For the ease of adopting common milling processing, all structures, the upper surface that comprises coupling cavity and described input/output port is positioned at same plane, namely the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of described input port, isolated port B, isolated port C and isolated port A, output port A, output port B all with the upper surface flush of coupling cavity.
Maximum characteristics of the present invention are phase differences that two phase differences between output are far smaller than the H-face kinds of Slot Coupled Waveguide Hybrids that generally adopts, and namely the phase difference between output port A, output port B is far smaller than the phase difference of the H-face kinds of Slot Coupled Waveguide Hybrids that generally adopts.Due to locational notable difference between two output ports of H-face kinds of Slot Coupled Waveguide Hybrids and input, the phase difference of two output in whole working band all in 90 degree left and right.In waveguide power divider, we usually need between two outputs of power splitter phase difference in whole working band less than certain value, such as 3 degree or 5 degree.In order to satisfy this equiphase requirement, the most frequently used method is two outputs connection waveguide phase compensating circuits at H-face kinds of Slot Coupled Waveguide Hybrids.There is the narrow problem with increasing the power splitter volume of bandwidth of operation in this compensating circuit.Particularly when adopting multistage H-face kinds of Slot Coupled Waveguide Hybrids to consist of the multichannel power division network, the problems referred to above are more serious.Power splitter of the present invention makes the relative port of input become isolation end, makes the relative port of input port become isolated port A, and output port A, output port B are good with respect to the input port symmetry.Particularly when we are designed to whole power splitter with respect to before and after input port during to the structure of axis left and right full symmetric, power and the phase place of output port A, output port B are identical.Therefore, H-ground roll provided by the invention is led output port A, the output port B phase place of power splitter and can be accomplished identical, have between output port A, output port B 15dB even 20dB with good isolation, can be used as single power splitter and use, particularly can be connected in series formation multichannel power division network and use.Device has clear superiority aspect performance, bandwidth of operation and volume.
Operation principle of the present invention can in the situation that symmetric form rectangular coupled cavity and rectangle input and output waveguide be summarized as follows.The cross section is that the input port of rectangle has mainly encouraged two waveguide mode of operations, i.e. TE10 pattern and TE30 pattern in the coupling cavity of cuboid structure.The ripple of these two patterns all will be propagated along the input waveguide axis direction.Because the guide wavelength of these two patterns is different, at the other end of coupling cavity, the power that output port A and output port B and isolated port A are coupled out from coupling cavity be the power that is coupled out from the ripple of two mode of operation TE10 patterns and TE30 pattern respectively and.By width and the length of choosing coupling cavity, and size and the position of input port, isolated port B, isolated port C and isolated port A, output port A, output port B, the power phases that isolated port A is coupled out from two mode of operations respectively differs 180 degree, cancel out each other, the power phases that output port A and output port B are coupled out from two mode of operations respectively differs the integral multiple of 0 degree or 360 degree, stack mutually.At this moment, all energy are all exported from output port A and output port B coupling basically, and do not export from isolated port A.Naturally satisfy at isolated port B, isolated port C place due to two mode of operation TE10 patterns of input port excitation and TE30 and anti-phasely disappear mutually, the power that is coupled out from isolated port B, isolated port C is all very little, thereby isolated port B, isolated port C are used as isolation end.In order further to widen the bandwidth of operation of device, the shape of coupling cavity, particularly width can suitably change to axis along the front and back of input port, can also increase groove A or metal boss (metal column) in coupling cavity.Each input/output terminal can increase one or more levels matching section.Coupling cavity and input port, isolated port B, isolated port C and isolated port A, output port A, output port B are shaped as other when distortion, and this H-ground roll is led the operation principle of power splitter and also can be set forth and understand according to above content.
The power output of two output ports of the present invention and phase place are identical in wider working band, can be used as the good waveguide power divider of amplitude-phase consistency, are particularly suitable for serial connection and consist of the multichannel power division network.That the present invention also has is simple in structure, volume is little, the characteristics that difficulty of processing is low.The present invention can be widely used in that antenna array, phased array radar and power are synthetic, missile guidance, military affairs and the civil area such as communicate by letter.
Description of drawings
Fig. 1 is vertical view of the present invention.
Fig. 2 is the vertical view of embodiment 1.
Fig. 3 is the result of calculation curve of embodiment 1.
Fig. 4 is the vertical view of embodiment 2.
The corresponding title of attached number in the figure: 1-input port; 2-isolated port A; 4-isolated port B, 6-isolated port C, 3-output port A, 5-output port B, 7-coupling cavity, 8-groove A, 9-metal boss, 10-changeover portion, the left groove B of 91-; The right groove C of 92-.
In figure ↓ arrow represent the place ahead to, ↑ arrow represent the rear to, ← arrow represent left to, → arrow represents right.Front and back refer to by the place ahead to the axle straight line that refers to backward directions to axis.
Embodiment
Embodiment 1
As shown in Figure 2, a H-ground roll is led power splitter, comprise coupling cavity 7, the input port 1 that is communicated with coupling cavity 7, isolated port B4, isolated port C6, isolated port A2 and output port A3, output port B5, described input port 1 is positioned at the front end face of coupling cavity 7, isolated port A2 is positioned at the rear end face of coupling cavity 7, front end face and rear end face are coupling cavity 7 two opposites in opposition to each other, isolated port B4 and isolated port C 6 lay respectively at the both sides of input port 1, and output port A3, output port B5 lay respectively at isolated port A2 both sides.Be provided with changeover portion 10 on input port 1, isolated port B4, isolated port C6, isolated port A2 and output port A3, output port B5.In input port 1, isolated port B4, isolated port C6, output port A2 and output port B3, output port C5, at least 3 port center electric field vertical components are greater than horizontal component.
It is the left-right symmetric structure with respect to the front and back of input port 1 to axis that this H-ground roll is led power splitter.
The basic configuration of coupling cavity 7 is the cuboid structure, the cross section of the cross section of input port 1, the cross section of isolated port B4, isolated port C6, the cross section of isolated port A2, the cross section of output port A3, output port B5.
The width of coupling cavity 7 has 2 variations along the axis of input 1.Namely be provided with left groove B91 at the left inside wall of described coupling, and the opening direction of left groove B91 points to coupling cavity 7 inside; Right inside wall at described coupling cavity 7 is provided with right groove C92, and the opening direction of right groove C92 points to coupling cavity 7 inside.Described left groove B91 and right groove C92 carry out symmetry arrangement with respect to coupling cavity 7.
7 times inwalls of coupling cavity are provided with two groove A8, and two groove A8 become left-right symmetric to distribute to the front and back of input port 1 to axis.
The upper surface that this H-ground roll is led all structures of power splitter is positioned at same plane, and namely the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of the upper surface of described input port 1, isolated port B4, isolated port C6 and isolated port A2, output port A3, output port B5 all is positioned at same plane with the upper surface of coupling cavity 7.
As shown in Figure 3, wherein the S11 in Fig. 3 represents the reflection coefficient of input port 1, S21 represents that input port 1 is to the transmission coefficient of isolated port A2, S31 is expressed as input port 1 to the transmission coefficient of output port A3, S41 is expressed as input port 1 to the transmission coefficient of isolated port B4, and S53 represents the isolating coefficient of output port B5 and output port A3.
This H-ground roll that obtains according to the Structure Calculation of embodiment 1 is led the S parameter of power splitter and therefrom can be found out, 8.4 in the bandwidth of operation of 9.8GHz, the reflection of input port 1, the S parameter of isolated port A2 and isolated port B4 is all lower than-12dB.Isolation between output port A3 and output port B5 is higher than 17dB.And the S parameter of output port A3 is higher than-3.5dB.Consider that this power splitter is the left-right symmetric structure, the S parameter of other port easily obtains.Therefore, this embodiment provides a relative bandwidth of operation 15%, and Insertion Loss is lower than 0.5dB, and isolation is better than the constant amplitude homophase waveguide power divider of 17dB.Its performance all is better than traditional power splitter.
As Fig. 4. only be with the difference of embodiment 1, adopt two metal boss 9 to replace two grooves 8.
Above-mentioned only for giving an example.In actual production, the side of coupling cavity 7 both can be one or more straightway, also can be smooth curve, consisted of to overlook the rectangle of direction, the pattern that trapezoidal or other are more complicated.Each input/output port both can be simple rectangular waveguide, other shapes of various shapes that also can axis bending.
Can realize the present invention based on said structure.
Claims (10)
1.H-ground roll is led power splitter, comprise coupling cavity (7), it is characterized in that, also comprise the input port (1), the isolated port B(4 that are communicated with coupling cavity (7)), isolated port C(6), isolated port A(2) with output port A(3), output port B(5); Described input port (1) is positioned at the front end face of coupling cavity (7), isolated port A(2) be positioned at the rear end face of coupling cavity (7), front end face and rear end face are coupling cavity (7) two opposites in opposition to each other, isolated port B(4) and isolated port C(6) lay respectively at the both sides of input port (1), output port A(3), output port B(5) lay respectively at isolated port A(2) both sides; Input port (1), isolated port B(4), isolated port C(6), output port A(2) with output port B(3), output port C(5) at least 3 port center electric field vertical components greater than horizontal component.
2. H-ground roll according to claim 1 is led power splitter, it is characterized in that, is provided with left groove B(91 at the left inside wall of described coupling cavity (7)), and left groove B(91) opening direction point to coupling cavity (7) inside; Right inside wall at described coupling cavity (7) is provided with right groove C(92), and right groove C(92) opening direction point to coupling cavity (7) inside.
3. H-ground roll according to claim 2 is led power splitter, it is characterized in that: described coupling cavity (7) is the left-right symmetric shape, left groove B(91) and right groove C(92) arrange with respect to coupling cavity (7) left-right symmetric.
4. H-ground roll according to claim 1 is led power splitter, it is characterized in that, the upper inwall of described coupling cavity (7) or and lower inwall be provided with the coupling body that at least one regulates coupling use, upper inwall and lower inwall are coupling cavity (7) two opposites in opposition to each other; Coupling body is groove A(8) or metal boss (9); Described groove A(8) opening direction sensing coupling cavity (7) inside, protrusion direction sensing coupling cavity (7) inside of described metal boss (9).
5. H-ground roll according to claim 4 is led power splitter, it is characterized in that, coupling cavity (7) is the left-right symmetric shape, groove A(8) or metal boss (9) in coupling cavity (7) symmetry arrangement in the both sides of input port (1) normal.
6. the described H-ground roll of any one is led power splitter according to claim 1-5, it is characterized in that described input port (1), isolated port B(4), isolated port C(6), isolated port A(2), output port A(3), output port B(5) be rectangular waveguide or ridge waveguide or band line or coaxial configuration.
7. the described H-ground roll of any one is led power splitter according to claim 1-5, it is characterized in that, input port (1) and isolated port A(2) be the left-right symmetric shape, the front and back of described input port (1) are to axis and isolated port A(2) front and back to dead in line.
8. the described H-ground roll of any one is led power splitter according to claim 1-5, it is characterized in that, isolated port B(4) and isolated port C(6) arrange with respect to the normal left-right symmetric of input port (1), output port A(3) and output port B(5) with respect to isolated port A(2) the normal left-right symmetric arrange; Coupling cavity (7) is the left-right symmetric structure take the normal of input port (1) as symmetry axis.
9. the described H-ground roll of any one is led power splitter according to claim 1-5, it is characterized in that input port (1), isolated port B(4), isolated port C(6), isolated port A(2) with output port A(3), output port B(5) on be provided with changeover portion (10).
10. the described H-ground roll of any one is led power splitter according to claim 1-5, it is characterized in that upper surface, the isolated port B(4 of described input port (1)) upper surface, isolated port C(6) upper surface and isolated port A(2) upper surface, output port A(3) upper surface, output port B(5) upper surface all with the upper surface flush of coupling cavity (7).
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| CN201310076016.6A CN103107402B (en) | 2013-03-11 | 2013-03-11 | H-face waveguide power divider |
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| CN201310076016.6A CN103107402B (en) | 2013-03-11 | 2013-03-11 | H-face waveguide power divider |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107404A (en) * | 2013-03-11 | 2013-05-15 | 成都赛纳赛德科技有限公司 | Loaded H-plane equiphase power divider |
| CN104091994A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped HE face stub |
| CN104091995A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped EH face stub |
| CN104091997A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped E-face stub |
| CN104091996A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped H-face stub |
| CN104577284A (en) * | 2014-12-22 | 2015-04-29 | 成都赛纳赛德科技有限公司 | Compact waveguide power divider |
| CN106207350A (en) * | 2016-08-29 | 2016-12-07 | 成都赛纳微波科技有限公司 | Rectangle transmission line microwave treatment device |
| CN106252806A (en) * | 2016-08-29 | 2016-12-21 | 成都赛纳微波科技有限公司 | Shape uniform HIGH-POWERED MICROWAVES device |
| CN106299568A (en) * | 2016-08-29 | 2017-01-04 | 成都赛纳微波科技有限公司 | There is the HIGH-POWERED MICROWAVES device of metal ridge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106374174A (en) * | 2016-08-29 | 2017-02-01 | 成都赛纳微波科技有限公司 | High-power microwave device with metal bodies |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107404A (en) * | 2013-03-11 | 2013-05-15 | 成都赛纳赛德科技有限公司 | Loaded H-plane equiphase power divider |
| CN104091994A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped HE face stub |
| CN104091995A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped EH face stub |
| CN104091997A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped E-face stub |
| CN104091996A (en) * | 2014-07-24 | 2014-10-08 | 成都赛纳赛德科技有限公司 | T-shaped H-face stub |
| CN104577284A (en) * | 2014-12-22 | 2015-04-29 | 成都赛纳赛德科技有限公司 | Compact waveguide power divider |
| CN106207350A (en) * | 2016-08-29 | 2016-12-07 | 成都赛纳微波科技有限公司 | Rectangle transmission line microwave treatment device |
| CN106252806A (en) * | 2016-08-29 | 2016-12-21 | 成都赛纳微波科技有限公司 | Shape uniform HIGH-POWERED MICROWAVES device |
| CN106299568A (en) * | 2016-08-29 | 2017-01-04 | 成都赛纳微波科技有限公司 | There is the HIGH-POWERED MICROWAVES device of metal ridge |
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| CN103107402B (en) | 2015-09-09 |
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