CN203085725U - Six-port E-plane waveguide power divider - Google Patents
Six-port E-plane waveguide power divider Download PDFInfo
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- CN203085725U CN203085725U CN 201320108708 CN201320108708U CN203085725U CN 203085725 U CN203085725 U CN 203085725U CN 201320108708 CN201320108708 CN 201320108708 CN 201320108708 U CN201320108708 U CN 201320108708U CN 203085725 U CN203085725 U CN 203085725U
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Abstract
The utility model discloses a six-port E-plane waveguide power divider, which comprises a coupling region, 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 region, the input port is positioned at the front end surface of the coupling region, the isolation port A is positioned at the back end surface of the coupling region, the front end surface and the back end surface are respectively two mutually-opposite opposite surfaces of the coupling region, the isolation port B and the isolation port C are respectively positioned at two sides of the input port, and the output port A and the output port B are respectively positioned at two sides of the isolation port A. The six-port E-plane waveguide power divider also has the characteristics that the structure is simple, the size is small, and the processing difficulty is low. The six-port E-plane waveguide power divider can be widely applied to the military and civil fields such as antenna array and phased array radars, power synthesis, missile guidance and communication.
Description
Technical field
The utility model relates to a kind of power splitter, specifically, relates to a kind of equiphase E-ground roll and leads two road power splitters.
Background technology
Power splitter is a kind of general original paper in modern microwave communication and the military electronic system.Waveguide power divider is used very extensive owing to its power capacity height, insert characteristics such as loss is low.Two road waveguide power dividers both can use separately, also can constitute the multichannel power division network by serial connection, were used for fields such as phased array radar, antenna array and power is synthetic.Existing two road waveguide power dividers mainly comprise E-face T type branch, H-face T type branch, and waveguide evil spirit T, the E-ground roll is led crack electric bridge etc.Wherein preceding two kinds of devices are owing to isolation between two outputs is low, and the mismatch of any one output port all can have a strong impact on the 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 three mutually perpendicular directions respectively, become complicated 3-D solid structure, difficult processing, the cost height, and device is all bigger aspect length and width Senior Three, is unfavorable for miniaturization of devices.Particularly waveguide evil spirit T is not suitable as unit serial connection formation multichannel power division network.The axis that the E-ground roll is led the input and output waveguide of crack electric bridge is positioned at same plane, can be connected in series all waveguide axis of formation thus and be positioned at conplane multichannel power division network.This power division network can be divided into base and cover plate, utilizes traditional digital control milling technology disposable and convenient ground processing respectively, and machining accuracy improves greatly, and processing cost reduces greatly.But existing E-ground roll is led and is had 90 intrinsic degree phase differences between two output ports of crack electric bridge.Requiring under the situation of same-phase output, particularly when serial connection constitutes the multichannel power division network, need 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 improve greatly.
The utility model content
The purpose of this utility model is to provide six identical port E ground rolls of a kind of phase place to lead power divider.
To achieve these goals, the technical solution adopted in the utility model is as follows: six port E ground rolls are led power divider, comprise coupling cavity, also comprise 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 regime; Described input port is positioned at the front end face of coupling regime, isolated port A is positioned at the rear end face of coupling regime, front end face and rear end face are coupling regime two opposites in opposition to each other, isolated port B and isolated port C lay respectively at the left and right sides of input port, and output port A, output port B lay respectively at the left and right sides of isolated port A.
Along the front and back of input port to axis direction, be provided with at least one group of barrier bodies assembly in the coupling regime, each group barrier bodies assembly comprises 2 obstruct posts that lay respectively at the left side and the right of input port normal, obstruct post upper end is connected with inwall on the coupling regime, the lower end is connected with inwall under the coupling regime, between the adjacent barrier bodies assembly of input port normal direction arrangement, there is coupling aperture, has the gap between 2 obstruct posts in each group barrier bodies assembly.
2 obstruct posts in each group barrier bodies assembly with respect to the front and back of input port to the axis symmetry arrangement.
In described coupling regime, have 2 coupling apertures at least.When the number of coupling aperture was 1, then the barrier bodies component count was 1, and 2 obstruct posts in the barrier bodies assembly all are connected with coupling regime front end face or rear end face, that is, the barrier bodies assembly is the part of front end face or rear end face; When the number of coupling aperture was 2, then the barrier bodies component count was 1, and all there are the gap in 2 obstruct posts in the barrier bodies assembly with coupling regime front end face and rear end face, and gap described herein is coupling aperture; When the number of coupling aperture greater than 2 the time, then the barrier bodies component count is greater than 2, all there is the gap in 2 obstruct posts in the barrier bodies assembly with coupling regime front end face and rear end face, carrying out described herein is coupling aperture, and also have the gap between the adjacent two barrier bodies assemblies, carrying out described herein also is coupling aperture.
The utility model, is divided into the whole coupling regime of stating between a plurality of coupled zones as boundary with the barrier bodies assembly from this, and the interval number of its coupling is with the number decision of barrier bodies assembly.Finally reach the purpose of multi-region coupling.The gap that exists between the adjacent obstruct post constitutes a directed waveguide, makes the ripple directional transmissions.In the utility model, also there is the gap between the left inwall of obstruct post and coupling regime and the right inwall, this gap promptly constitutes between wave guide zone.Simultaneously, one group of barrier bodies assembly of the utility model setting exists the gap to intercept forming of post by 2, therefore the utility model exists between 3 wave guide zone, corresponds respectively to above-mentioned input port, isolated port B, isolated port C, isolated port A and output port A, output port B; Being the waveguiding structure of isolated port B to output port A between one of them wave guide zone, is the waveguiding structure of input port to isolated port A between another wave guide zone, is the waveguiding structure of output port B to isolated port C between a remaining wave guide zone.2 obstruct posts in each group barrier bodies assembly, can cause that power amplifier is output as and wait all exporting to the axis symmetry arrangement with respect to the front and back of input port.
Left inwall at described coupling regime is provided with at least one left boss B, and the protrusion direction of left boss B is pointed to coupling regime inside; Right inwall at described coupling regime is provided with right boss C, and the protrusion direction of right boss C is pointed to coupling regime inside.
Ripple is imported from input port, in coupling aperture, be coupled, and under the regulating action of left boss B and right boss C, carry out certain coupling and regulate, at last by the transmission between above-mentioned 3 wave guide zone, be transferred to and repeat the coupling processing in the next coupling aperture, cause the almost output of no signal of isolated port B, isolated port C, isolated port A at last, the signal major part is exported from output port A, output port B.On the basis of foregoing, left boss B described in the utility model and right boss C optimum position should be arranged between the adjacent barrier bodies assembly, could guarantee the validity that coupling is regulated.
Described left boss B and right boss C arrange with respect to the coupling regime left-right symmetric.
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.The cross section of the cross section of the cross section of general 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.
The front and back of described input port to the front and back of axis and isolated port A to dead in line.
All structures comprise that coupling regime, isolated port B, isolated port C, input port, output port A, output port B, isolated port A, barrier bodies assembly, coupling aperture, left boss B and right boss C are left-right symmetric with respect to the normal direction of input port.
Isolated port B and isolated port C arrange to the axis left-right symmetric with respect to the front and back of input port, and 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; Coupling regime is that symmetry axis is the left-right symmetric structure with the front and back of input port to axis.
Be isolated port B and isolated port C with respect to the front and back of input port 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; Coupling regime is that symmetry axis is the left-right symmetric structure with the front and back of input port to axis.
Be provided with changeover portion on input port, isolated port B, isolated port C, isolated port A and output port A, the 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 with the upper surface flush of coupling regime, promptly upper surface is positioned at same plane.
It is the left-right symmetric structure with respect to the front and back of input port to axis that this six port E ground roll is led power divider.Front and back are the axis that front end face points to rear end face to axis.
For convenience of designing and calculating, coupling regime is good with the cuboid structure, 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 good with rectangle all.
For given design objective, comprise reflection coefficient, isolation, total insertion loss etc., in order to obtain wideer bandwidth of operation, the width of coupling regime can change according to certain rule to axis along the front and back of input port, and promptly the left inwall at described coupling regime is provided with left boss B, and the protrusion direction of left boss B is pointed to coupling regime inside; Right inwall at described coupling regime is provided with right boss C, and the protrusion direction of right boss C is pointed to coupling regime inside; Described left boss B and right boss C carry out symmetry arrangement with respect to coupling regime.Setting can obtain wideer bandwidth of operation like this.Left side boss B and right boss C play the effect of regulating coupling herein.
Lead the bandwidth of operation of power divider for further this six port of broadening E ground roll, coupling regime inside is provided with the coupling aperture of a plurality of adjustings coupling usefulness.
Lead the coupling of each port of power divider in order to improve this six port E ground roll, be provided with changeover portion on input port, isolated port B, isolated port C, isolated port A and output port A, the 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 regime and described input/output port is positioned at same plane, and promptly 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 is positioned at same plane with the upper surface of coupling regime.
Maximum characteristics of the present utility model are that two phase differences between the output are far smaller than the phase difference that the E-ground roll that generally adopts is led the crack electric bridge, and promptly the phase difference between output port A, the output port B is far smaller than the phase difference that the E-ground roll that generally adopts is led the crack electric bridge.Because the E-ground roll is led locational notable difference between two output ports of crack electric bridge and the input, the phase difference of two output in whole working band all about 90 degree.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 of leading the crack electric bridge at the E-ground roll.There is work zone width in this compensating circuit and increases the problem of power splitter volume.Particularly when adopting multistage E-ground roll to lead crack electric bridge formation multichannel power division network, the problems referred to above are more serious.Power splitter of the present utility model 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 with whole power splitter be designed to respect to before and after the input port to about axis fully during symmetrical structure, power and the phase place of output port A, output port B are identical.Therefore, the six port E ground rolls that the utility model provides are led output port A, the output port B phase place of power divider and can be accomplished identical, have between output port A, the 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 the volume.
Operation principle of the present utility model can be summarized as follows under the situation of symmetric form rectangle coupling regime and rectangle input and output waveguide.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 the cuboid structure that is coupled by the E face.The ripple of these two patterns all will be propagated along the input waveguide axis direction.Because the guide wavelength difference of these two patterns, at the other end of coupling regime, the power that output port A and output port B and isolated port A are coupled out from coupling regime be the power that from the ripple of two mode of operation TE10 patterns and TE30 pattern, is coupled out respectively and.By width and the length of choosing coupling regime, 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, mutual superposition.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.Because two mode of operation TE10 patterns of input port excitation and TE30 satisfy naturally at isolated port B, isolated port C place 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 regime, 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 regime.Each input/output terminal can increase one or more levels matching section.Coupling regime 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 the operation principle that this six port E ground roll is led power divider also can be set forth and understands according to above content.
The power output of two output ports of the present utility model is identical in the working band than broad with phase place, can be used as the good waveguide power divider of amplitude-phase consistency, is particularly suitable for serial connection and constitutes the multichannel power division network.That the utility model also has is simple in structure, volume is little, the characteristics that difficulty of processing is low.The utility model can be widely used in that antenna array, phased array radar and power are synthetic, missile guidance, military affairs and civil area such as communicate by letter.
Description of drawings
Fig. 1 is a vertical view of the present utility model.
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 label in the accompanying drawing: 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 regime, 8-coupling aperture, 91-left side boss B; The right boss C of 92-, the 10-changeover portion; 81, barrier bodies assembly.
Among the figure ↓ arrow represent the place ahead to, ↑ arrow represent the rear to, ← arrow represent left to, → arrow is represented right.Before and after to axis refer to by the place ahead to point to the rear to the axle straight line.
Embodiment
As shown in Figure 1, 2, one six port E ground roll is led power divider, comprise coupling regime 7, the input port 1 that is communicated with coupling regime 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 regime 7, isolated port A2 is positioned at the rear end face of coupling regime 7, front end face and rear end face are coupling regime 7 two opposites in opposition to each other, and isolated port B4 and isolated port C 6 lay respectively at input port 1
AboutBoth sides, output port A3, output port B5 lay respectively at isolated port A2
AboutBoth sides.Be provided with changeover portion 10 on input port 1, isolated port B4, isolated port C6, isolated port A2 and output port A3, the output port B5.
As shown in Figure 1.Along the front and back of input port 1 to axis direction, be provided with at least one group of barrier bodies assembly 81 in the coupling regime 7, each group barrier bodies assembly 81 comprises 2 obstruct posts, obstruct post upper end is connected with inwall on the coupling regime 7, the 7 times inwalls in lower end and coupling regime are connected, and has the gap between 2 obstruct posts in each group barrier bodies assembly 81.2 obstruct posts in each group barrier bodies assembly 81 with respect to the front and back of input port 1 to the axis symmetry arrangement.In described coupling regime 7, have 2 coupling apertures 8 at least.When the number of coupling aperture 8 was 1, then barrier bodies assembly 81 numbers were 1, and 2 obstruct posts in the barrier bodies assembly 81 all are connected with coupling regime 7 front end faces or rear end face, that is, barrier bodies assembly 81 is the part of front end face or rear end face; When the number of coupling aperture 8 was 2, then barrier bodies assembly 81 numbers were 1, and all there are the gap in 2 obstruct posts in the barrier bodies assembly 81 with coupling regime 7 front end faces and rear end face, and gap described herein is coupling aperture; When the number of coupling aperture 8 greater than 2 the time, then barrier bodies assembly 81 numbers are greater than 2, all there is the gap in 2 obstruct posts in the barrier bodies assembly 81 with coupling regime 7 front end faces and rear end face, carrying out described herein is coupling aperture, and also have the gap between the adjacent two barrier bodies assemblies 81, carrying out described herein also is coupling aperture.
The utility model, is divided into the whole coupling regime 7 of stating between a plurality of coupled zones as boundary with barrier bodies assembly 81 from this, and the interval number of its coupling is with the number decision of barrier bodies assembly 81.Finally reach the purpose of multi-region coupling.The gap that exists between the adjacent obstruct post constitutes a directed waveguide, makes the ripple directional transmissions.In the utility model, also there is the gap between the left inwall of obstruct post and coupling regime 7 and the right inwall, this gap promptly constitutes between wave guide zone.Simultaneously, one group of barrier bodies assembly 81 of the utility model setting exists the gap to intercept forming of post by 2, therefore the utility model exists between 3 wave guide zone, corresponds respectively to above-mentioned input port 1, isolated port B4, isolated port C6, isolated port A2 and output port A3, output port B5; Being the waveguiding structure of isolated port B4 to output port A3 between one of them wave guide zone, is the waveguiding structure of input port 1 to isolated port A2 between another wave guide zone, is the waveguiding structure of output port B5 to isolated port C6 between a remaining wave guide zone.2 obstruct posts in each group barrier bodies assembly 81, can cause that power amplifier is output as and wait all exporting to the axis symmetry arrangement with respect to the front and back of input port 1.
Concrete, as shown in Figure 1, have 4 groups of barrier bodies assemblies, and each group barrier bodies assembly only is connected between top and bottom and coupled zone, therefore there are 5 coupling apertures.As shown in Figure 2, have 3 groups of barrier bodies assemblies, and each group barrier bodies assembly only is connected between top and bottom and coupled zone, therefore has 4 coupling apertures.
It is the left-right symmetric structure with respect to the front and back of input port 1 to axis that this six port E ground roll is led power divider.
The basic configuration of coupling regime 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.
4 coupling apertures of regulating coupling usefulness are arranged in the coupling regime 7.
The upper surface that this six port E ground roll is led all structures of power divider is positioned at same plane, and the upper surface of the upper surface of the upper surface of promptly described input port 1, the upper surface of isolated port B4, isolated port C6 and the upper surface of isolated port A2, output port A3, the upper surface of output port B5 all are positioned at same plane with the upper surface of coupling regime 7.
As shown in Figure 3, wherein the S11 among Fig. 3 represents the reflection coefficient of input port 1, S21 represents the transmission coefficient of input port 1 to isolated port A2, S31 is expressed as the transmission coefficient of input port 1 to output port A3, S41 is expressed as the transmission coefficient of input port 1 to isolated port B4, and S53 represents the isolating coefficient of output port B5 and output port A3.
The S parameter that this six port E ground roll that obtains according to the Structure Calculation of embodiment 1 is led power divider therefrom as can be seen, 7.2 in the bandwidth of operation of 8.2GHz, the reflection of input port 1, the S parameter of isolated port A2 and isolated port B4 all is lower than-18dB.Isolation between output port A3 and the output port B5 is higher than 20dB.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 obtains easily.Therefore, this embodiment provides a relative bandwidth of operation 13%, and Insertion Loss is lower than 0.5dB, isolates the constant amplitude homophase waveguide power divider that is better than 20dB.Its performance all is better than traditional power splitter.
As Fig. 4. only be that with the difference of embodiment 1 left and right sides inwall has increased the metal boss of regulating coupling usefulness in the coupling regime 7.
Above-mentioned only for giving an example.In the actual production, the left and right side of coupling regime 7 both can be one or more metal boss, and the shape of coupling regime 7 constitutes vertical view can be rectangle, trapezoidal or pattern that other are more complicated.Each input/output port both can be simple rectangular waveguide, other shapes of different shape that also can axis bending.
Can realize the utility model based on said structure.
Claims (9)
1. six port E ground rolls are led power divider, comprise coupling regime (7), it is characterized in that, also comprise the input port (1), the isolated port B(4 that are communicated with coupling regime (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 regime (7), isolated port A(2) is positioned at the rear end face of coupling regime (7), front end face and rear end face are coupling regime (7) two opposites in opposition to each other, isolated port B(4) and isolated port C(6) lay respectively at the left and right sides of input port (1), output port A(3), output port B(5) lay respectively at isolated port A(2) the left and right sides.
2. six port E ground rolls according to claim 1 are led power divider, it is characterized in that, along the front and back of input port (1) to axis direction, be provided with at least one group of barrier bodies assembly (81) in the coupling regime (7), each group barrier bodies assembly (81) comprises that 2 lay respectively at the left side of input port (1) normal and the obstruct post on the right, obstruct post upper end is gone up inwall with coupling regime (7) and is connected, the lower end is connected with inwall under the coupling regime (7), between the adjacent barrier bodies assembly (81) of input port (1) normal direction arrangement, there is coupling aperture (8), has the gap between 2 obstruct posts in each group barrier bodies assembly (81).
3. six port E ground rolls according to claim 2 are led power divider, it is characterized in that, 2 obstruct posts in each group barrier bodies assembly (81) with respect to the front and back of input port (1) to the axis symmetry arrangement.
4. six port E ground rolls according to claim 2 are led power divider, it is characterized in that, are provided with at least one left boss B(91 at the left inwall of described coupling regime (7)), and left boss B(91) protrusion direction point to coupling regime (7) inside; Right inwall at described coupling regime (7) is provided with at least one right boss C(92), and right boss C(92) protrusion direction point to coupling regime (7) inside.
5. lead power divider according to any described six port E ground rolls among the claim 1-4, 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.
6. lead power divider according to any described six port E ground rolls among the claim 2-4, it is characterized in that, all structures comprise coupling regime (7), isolated port B(4), isolated port C(6), input port (1), output port A(3), output port B(5), isolated port A(2), barrier bodies assembly (81), coupling aperture (8), left boss B(91) and right boss C(92) be left-right symmetric with respect to the normal direction of input port (1).
7. lead power divider according to any described six port E ground rolls among the claim 1-4, 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. lead power splitter according to any described E-ground roll among the claim 1-4, 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).
9. lead power divider according to any described six port E ground rolls among the claim 1-4, 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 regime (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320108708 CN203085725U (en) | 2013-03-11 | 2013-03-11 | Six-port E-plane waveguide power divider |
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| CN 201320108708 CN203085725U (en) | 2013-03-11 | 2013-03-11 | Six-port E-plane waveguide power divider |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577284A (en) * | 2014-12-22 | 2015-04-29 | 成都赛纳赛德科技有限公司 | Compact waveguide power divider |
| CN104681909A (en) * | 2013-11-27 | 2015-06-03 | 中国航空工业集团公司雷华电子技术研究所 | Waveguide slot three-way power divider |
| CN105070995A (en) * | 2015-08-24 | 2015-11-18 | 江苏贝孚德通讯科技股份有限公司 | Novel waveguide attenuator |
-
2013
- 2013-03-11 CN CN 201320108708 patent/CN203085725U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681909A (en) * | 2013-11-27 | 2015-06-03 | 中国航空工业集团公司雷华电子技术研究所 | Waveguide slot three-way power divider |
| CN104577284A (en) * | 2014-12-22 | 2015-04-29 | 成都赛纳赛德科技有限公司 | Compact waveguide power divider |
| CN105070995A (en) * | 2015-08-24 | 2015-11-18 | 江苏贝孚德通讯科技股份有限公司 | Novel waveguide attenuator |
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