CN203134953U - H-plane power divider in shape of Chinese character of Jin - Google Patents
H-plane power divider in shape of Chinese character of Jin Download PDFInfo
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- CN203134953U CN203134953U CN 201320156786 CN201320156786U CN203134953U CN 203134953 U CN203134953 U CN 203134953U CN 201320156786 CN201320156786 CN 201320156786 CN 201320156786 U CN201320156786 U CN 201320156786U CN 203134953 U CN203134953 U CN 203134953U
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Abstract
The utility model discloses an H-plane power divider in the shape of a Chinese character of Jin comprising a coupled cavity, which is communicated with an input end, an output end A, an output end B, and a matching end. The device adopts a left-right symmetrical structure. The included angles between the input end, the output end A, the output end B, and the matching end and an upper end surface of the coupled cavity in a normal direction of a central part of the intersected surface of the connection part with the coupled cavity is smaller than or equal to 30degrees. The widths of the input end, the output end A, the output end B are greater than the heights of the same, and the height of the matching end is greater than the width of the same. The maximum size of the coupled cavity on the upper end surface of the coupled cavity in one direction is smaller than a half of the free space wavelength corresponding to the highest working frequency of the power divider provided by the utility model. The power divider is advantageous in that the structure is simple and compact, the broadband and the processing debugging costs are low, the isolation between the output ends is good, the accuracy of the amplitude phase between the output ends is high; the multipath power divider, the sum and difference device, and the comparator can be formed; the power divider is widely used in the radar, communication and other military and civil fields.
Description
Technical field
The utility model relates to a kind of power splitter, specifically, relates to the good compact broadband waveguide power divider of a kind of amplitude and phase equalization.
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 H ground roll is led crack electric bridge, E face wave guide ring electric bridge (Ring Hybrid or Rat-Race Hybrid) and H face wave guide ring 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 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 waveguide port points to three mutually perpendicular directions respectively, constitutes complicated 3-D solid structure.Therefore waveguide evil spirit T difficult processing, the cost height, and also device is all bigger aspect length and width Senior Three, is unfavorable for miniaturization of devices, more is not suitable as the unit and is connected in series formation multichannel power division network.The axis that the H-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, processes with utilizing traditional digital control milling technology disposable and convenient respectively, and machining accuracy improves greatly, and processing cost reduces greatly.But existing H-ground roll is led and is had 90 intrinsic degree phase differences between two output ports of crack electric bridge.Under the situation that requires same-phase output, need be to carrying out broadband compensation between the phase place of power splitter output ports at different levels.Particularly when the miniaturization of multichannel power division network designed, phase compensating circuit can make device volume and design difficulty improve greatly.Simultaneously, it is narrow that the H-ground roll is led the bandwidth of operation of crack electric bridge.E face wave guide ring electric bridge (Ring Hybrid or Rat-Race Hybrid) and H face wave guide ring electric bridge are also because volume ratio is bigger, bandwidth of operation is narrow, its purposes is restricted, and particularly wave guide ring electric bridge seldom is used when the miniaturization of multichannel power division network designs.
In guidance system; above-mentioned waveguide evil spirit T; the H ground roll is led crack electric bridge, E face wave guide ring electric bridge (Ring Hybrid or Rat-Race Hybrid) and H face wave guide ring electric bridge etc. and is often also used as combiner separately, or uses as the combiner network of components and parts formation more complex functions.In this case, the weakness of these devices is still obvious.
The utility model content
The purpose of this utility model is to provide a kind of amplitude and phase equalization good, the compact broadband waveguide power divider that the work zone is very wide.
To achieve these goals, the technical solution adopted in the utility model is as follows: H face-cloth font power divider comprises coupling cavity, the input that is communicated with coupling cavity, output terminals A, output B and mating end; Mating end connects matched load away from an end of coupling cavity; The interface of input, output terminals A, output B and mating end and the coupling cavity connecting place normal direction of the center at heart place and the angle between the coupling cavity upper surface therein all is less than or equal to 30 degree, and the full-size of coupling cavity on a certain direction on the coupling cavity upper surface is less than or equal to half of free space wavelength of the maximum operating frequency correspondence of this H face-cloth font power divider.The coupling cavity upper surface is the surface that is parallel to the paper direction.
Described coupling cavity is the simply connected cavity structure, and namely any closed curve of this coupling cavity inside can converge on a point continuously in this coupling cavity.The simply connected cavity structure is simply connected region, and simply connected region is one of basic conception of mathematics.If D is plane domain, if the part that arbitrary closed curve is enclosed in the D all belongs to D, claim that then D is the plane simply connected region.
Output terminals A, output B and mating end all are positioned at the front end face of coupling cavity, and input is positioned at the rear end face of coupling cavity,
Described front end face is the top of paper when vertically placing, and described rear end face is the below of paper when vertically placing.Front end face is two relative planes of coupling cavity with rear end face, and output terminals A, output B lay respectively at the both sides of mating end.
The amplitude of the horizontal component of the electric field of the center of the interface of described mating end and coupling cavity connecting place is greater than the amplitude of its vertical component; The amplitude of the vertical component of the electric field of the center of the interface of input and coupling cavity connecting place is greater than the amplitude of its horizontal component; The amplitude of the vertical component of the electric field of the center of the interface of output terminals A and coupling cavity connecting place is greater than the amplitude of its horizontal component; The amplitude of the vertical component of the electric field of the center of the interface of output B and coupling cavity connecting place is greater than the amplitude of its horizontal component.
Angle between the normal direction of the normal direction of the interface center of described mating end and coupling cavity connecting place and output terminals A and coupling cavity connecting place interface center is less than or equal to 30 degree; Angle between the normal direction of the normal direction of the interface center of described mating end and coupling cavity connecting place and output B and coupling cavity connecting place interface center is less than or equal to 30 degree.
For branch power splitter situations such as two road power, the structure that described coupling cavity, input, output terminals A, output B and mating end constitute is left and right sides mirror image symmetric shape, and output terminals A and output B are symmetry arrangement about mating end.
Have at least among described input, output terminals A and the output B port with the coupling cavity connecting place
Be positioned at outside the coupling cavityBe provided with the metal column that at least one only contacts its bottom or top.
The upper surface flush of described coupling cavity, input, output terminals A, output B, mating end.
Described input, output terminals A, output B are provided with port width respectively away from an end of coupling cavity and change transmission line more than or equal to 10% than corresponding each port width, and this transmission line is empty waveguide or ridge waveguide or coaxial line.
Input, output terminals A, output B are rectangular waveguide or ridge waveguide; Mating end is rectangular waveguide; Coupling cavity is cuboid.
Coupling cavity upper surface and horizontal plane are on the plane of overlooking the coupling cavity that direction sees.
Above-mentioned H face-cloth font power divider generally speaking comprises coupling cavity, the input that is communicated with coupling cavity, output terminals A, output B and mating end.Mating end connects matched load outward, and matched load is in order to absorb all microwave energies that are coupled to mating end from coupling cavity.With among the existing waveguide evil spirit T port and vertical the comparing of its excess-three port are arranged, the maximum characteristics of this utility model be input, output terminals A, output B and mating end and normal direction and the angle between the coupling cavity upper surface of the center of the interface of coupling cavity connecting place can be zero degree, thereby make this utility model planar structure that is as the criterion, simplify the structure of device greatly, and simplified processing and the assembling process of device.Compare with the yardstick of corresponding coupling cavity in the existing H face wave guide ring electric bridge, the full-size of coupling cavity on a certain direction on the coupling cavity upper surface is less than half of the free space wavelength of the maximum operating frequency correspondence of this H face-cloth font power divider.
Compare with the asymmetric characteristics of E face wave guide ring electric bridge with existing H face, the structure that the coupling cavity in the utility model, input, output terminals A, output B and mating end constitute is left and right sides mirror image symmetric shape, i.e. axially symmetric structure.The intrinsic symmetry of this shape has guaranteed that the power magnitude of two outputs and phase place are on all four in theory.
Be that loop configuration is compared with existing H face with coupling cavity in the E face wave guide ring electric bridge, the coupling cavity in the utility model is the simply connected cavity structure, and namely any closed curve of this coupling cavity inside can converge on a point continuously in this coupling cavity.Be exactly not have any other space in the coupling cavity specifically.
On the position arrangement on the horizontal plane, on the left side is adjacent with mating end with the right respectively in output terminals A and the output B position on horizontal plane for each port, and mating end and input are output at horizontal plane holds A or output B to separate.
The degree of depth of the interface of mating end and coupling cavity connecting place is greater than its width on horizontal plane.Input, the degree of depth of the interface of output terminals A and output B and coupling cavity connecting place is less than its width on horizontal plane.The polarised direction that has guaranteed the electric field of mating end thus is mainly horizontal polarization, namely with the amplitude of the horizontal component of the electric field of the center of the interface of the coupling cavity connecting place amplitude greater than its vertical component.Simultaneously guaranteed that again the polarised direction of the electric field of input, output terminals A and output B is mainly perpendicular polarization, namely the amplitude of the vertical component of the electric field of the center of the interface of input, output terminals A and output B and coupling cavity connecting place is greater than the amplitude of its horizontal component.The degree of depth refers to that the coupling cavity upper surface points to the height of lower surface.Width refers to be pointed to by the coupling cavity left side length of right side.
Angle between the normal direction of the normal direction of the interface center of mating end and coupling cavity connecting place and output terminals A and coupling cavity connecting place interface center is good with zero degree, also can be set to less than 30 the degree or equal 30 the degree angles.Angle between the normal direction of the normal direction of mating end and coupling cavity connecting place interface center and output B and coupling cavity connecting place interface center is good with zero degree also, also can be set to less than 30 the degree or equal 30 the degree angles.
In order to increase bandwidth of operation, have at least a port being provided with the metal that at least one only contacts its bottom or top with the coupling cavity connecting place among input, output terminals A and the output B, metal column does not extend into coupling cavity.Simultaneously, input, output terminals A, output B are respectively arranged with width outward and surpass 10% transmission line than corresponding each port width difference, described input, output terminals A, output B are provided with port width respectively away from an end of coupling cavity and change transmission line more than or equal to 10% than corresponding each port width, and this transmission line is empty waveguide or ridge waveguide or coaxial line.
For the ease of this device is divided into base and cover plate, adopt respectively that the general NC milling machine is disposable to machine, simplify processing, guarantee machining accuracy better, particularly when constituting the multichannel power division network thus, the upper surface of the coupling cavity in this H face-cloth font power divider, input, output terminals A, output B, mating end all flushes.
The utility model provide have good isolation between a kind of broadband, the output, waveguide power divider that amplitude-phase consistency is good.Because this power splitter can be divided into base and cover plate, adopt respectively that the general NC milling machine is disposable to machine, when serial connection constitutes the multichannel power division network mutually, all circuit can be divided into base and cover plate, adopt respectively that the general NC milling machine is disposable to machine, simplify processing thus greatly, guaranteed machining accuracy simultaneously better.Compare this utility model planar structure that is as the criterion with existing magic T.Compare with existing H face or E face wave guide ring electric bridge, this utility model can be symmetrical structure, has guaranteed that from structure output terminals A, output B amplitude and the phase place of device is on all four in theory, and has had wideer bandwidth of operation simultaneously.This utility model also can adopt left and right sides dissymmetrical structure, thereby makes two tunnel power outputs unequal.At this moment, because the proper phase difference of two outputs can be littler than 90 degree, the two tunnel the five equilibrium power splitter is uneasy than other for its phase matched.
It is pointed out that this power splitter can be used as combiner in the equal timesharing of constant amplitude and uses.At this moment, signal is imported described power splitter respectively simultaneously by output terminals A and output B, and the difference signal of two signals is exported by mating end and signal is then exported by input.This moment, the matched load at mating end place was replaced by the difference signal passage.
Operation principle of the present utility model can be summarized as follows: after microwave signal enters into coupling cavity by input, mating end will not have energy output because its polarised direction is vertical with the polarised direction of input.The energy major part is from output terminals A and output B output.After microwave signal enters into coupling cavity by output terminals A, portion of energy will be exported from input, and another part energy is exported from mating end, and very little by the energy of output B output.Therefore, realized isolation between output terminals A and the output B well.By adjusting size, shape and the relative position of input, output terminals A, output B, mating end and coupling cavity, and the size of regulating the transmission line that connects each port simultaneously, can realize the matched well of each port, the good isolation between the output, guarantee the width of cloth phase accuracy of waveguide power divider in broad frequency range simultaneously.
Advantage of the present utility model is: it is little totally to take volume, and the output isolation effect is good, and the output phase amplitude can reach equiphase output.
Description of drawings
Fig. 1 is 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.
The corresponding title of label in the accompanying drawing: 1-coupling cavity, 2-input, 3-output terminals A, 4-output B, 5-mating end, 6-metal column, 7-matched load, 8-transmission line.
Referring to Fig. 1, described front end face is the top of paper when vertically placing, and described rear end face is the below of paper when vertically placing.Upper surface is for being parallel to paper directed outside direction, and lower surface points to interior side direction for being parallel to paper.
Embodiment
As shown in Figure 1, 2, H face-cloth font power divider comprises coupling cavity 1, the input 2 that is communicated with coupling cavity 1, output terminals A 3, output B4 and mating end 5.The mating end 5 outer matched loads 7 that connect, matched load 7 is in order to absorb all microwave energies that are coupled to mating end 5 from coupling cavity 1.Input 2, output terminals A 3, output B4 and mating end 5 and normal direction and the angle between coupling cavity 1 upper surface of the center of the interface (being shown in dotted line among Fig. 1) of coupling cavity 1 connecting place can be zero degree or 30 degree or 15 degree, the angle angle in Fig. 1 and 2 is zero degree.
The full-size of coupling cavity 1 on the axis direction of horizontal plane upper edge input 2 is 5 millimeters, only is that the 1/6(of 30 millimeters of free space wavelengths of maximum operating frequency 10GHz correspondence of this H face-cloth font power divider is less than 1/2).
On the position arrangement on the horizontal plane, on the left side is adjacent with mating end 5 with the right respectively in output terminals A 3 and the output B4 position on horizontal plane for each port, and mating end 5 and input 2 are output at horizontal plane holds A3 or output B4 to separate.
The degree of depth of the interface of mating end 5 and coupling cavity 1 connecting place is greater than its width on horizontal plane.The degree of depth of the interface of input 2, output terminals A 3 and output B4 and coupling cavity 1 connecting place is less than its width on horizontal plane.The polarised direction that has guaranteed the electric field of mating end 5 thus is mainly horizontal polarization, namely with the amplitude of the horizontal component of the electric field of the center of the interface of the coupling cavity 1 connecting place amplitude greater than its vertical component.Guaranteed simultaneously input 2 again, the polarised direction of the electric field of output terminals A 3 and output B4 is mainly perpendicular polarization, be input 2, the amplitude of the vertical component of the electric field of the center of the interface of output terminals A 3 and output B4 and coupling cavity 1 connecting place is greater than the amplitude of its horizontal component.
Angle between the normal direction of the normal direction of the interface center of mating end 5 and coupling cavity 1 connecting place and output terminals A 3 and coupling cavity 1 connecting place interface center is zero degree.Angle between the normal direction of the normal direction of the interface center of mating end 5 and coupling cavity 1 connecting place and output B4 and coupling cavity 1 connecting place interface center also is zero degree.
This embodiment is the constant power power splitter, and wherein the structure that constitutes of coupling cavity 1, input 2, output terminals A 3, output B4 and mating end 5 is left and right sides mirror image symmetric shape.
The upper surface of coupling cavity 1, input 2, output terminals A 3, output B4, mating end 5 all flushes.
Fig. 3 is the simulation curve of this H face-cloth font power divider.Among the figure, S11 represents the reflection coefficient of input.S21 represents that input arrives the transmission coefficient of output terminals A.S31 represents that input is to the transmission coefficient of output B.S22 represents the reflection coefficient of output terminals A, and S33 represents the reflection coefficient of output B.S44 represents the reflection coefficient of mating end.S32 represents the isolating coefficient between output terminals A and the output B.
As can be seen from Figure 3, surpassing in 40% the relative bandwidth scope from 6.57G to 10G, the reflection coefficient of this each port of device all is lower than-19dB, and the isolation between two outputs is greater than 19dB, the output of output terminals A 3 between-3dB and-3.2dB between, fluctuation is less than 0.2dB.Because device is the left-right symmetric structure, the amplitude of two outputs and phase place are all in full accord.
Above-mentioned only for for example, provided one of preferable implementation of the present utility model.This utility model also can adopt dissymmetrical structure, constitutes not five equilibrium power splitter.Simultaneously, coupling cavity 1 can be the cavity of different shape, and inside can also arrange various metal boss or groove.
H face-cloth font power divider of the present utility model has simple and compact for structure.Under the five equilibrium situation, can realize the relative bandwidth of operation up to 40%.The utility model also has that the processing and debugging cost is low, characteristics such as width of cloth phase precision height between good, the output of isolation between the output.Particularly its directrix plane structure both can be used separately, more can constitute multi-path power divider, combiner, comparator etc.These devices can be divided into base and cover plate, adopt respectively that the general NC milling machine is disposable to machine, and have guaranteed the machining accuracy of device well.This device can be widely used in military affairs and civil areas such as radar, missile guidance, communication.
Claims (10)
1.H face-cloth font power divider is characterized in that, comprises coupling cavity (1), the input (2) that is communicated with coupling cavity (1), output terminals A (3), output B(4) and mating end (5); Mating end (5) connects matched load (7) away from an end of coupling cavity (1); Input (2), output terminals A (3), output B(4) and the interface of mating end (5) and coupling cavity (1) connecting place normal direction and the angle between coupling cavity (1) upper surface at heart place all are less than or equal to 30 degree therein.
2. H face-cloth font power divider according to claim 1, it is characterized in that the full-size of coupling cavity (1) on a certain direction on coupling cavity (1) upper surface is less than or equal to half of free space wavelength of the maximum operating frequency correspondence of this H face-cloth font power divider.
3. H face-cloth font power divider according to claim 1 is characterized in that described coupling cavity (1) is the simply connected cavity structure, and namely the inner any closed curve of this coupling cavity (1) can converge on a point continuously in this coupling cavity (1).
4. H face-cloth font power divider according to claim 1, it is characterized in that, output terminals A (3), output B(4) and mating end (5) all be positioned at the front end face of coupling cavity (1), input (2) is positioned at the rear end face of coupling cavity (1), described front end face is the top of paper when vertically placing, and described rear end face is the below of paper when vertically placing; Front end face is two relative planes of coupling cavity (1) with rear end face, output terminals A (3), output B(4) lay respectively at the both sides of mating end (5).
5. H face-cloth font power divider according to claim 1 is characterized in that, the amplitude of the horizontal component of the electric field of the center of the interface of described mating end (5) and coupling cavity (1) connecting place is greater than the amplitude of its vertical component; The amplitude of the vertical component of the electric field of the center of the interface of input (2) and coupling cavity (1) connecting place is greater than the amplitude of its horizontal component; The amplitude of the vertical component of the electric field of the center of the interface of output terminals A (3) and coupling cavity (1) connecting place is greater than the amplitude of its horizontal component; Output B(4) with the amplitude of the vertical component of the electric field of the center of the interface of coupling cavity (1) the connecting place amplitude greater than its horizontal component.
6. H face-cloth font power divider according to claim 1, it is characterized in that the angle between the normal direction of the normal direction of the interface center of described mating end (5) and coupling cavity (1) connecting place and output terminals A (3) and coupling cavity (1) connecting place interface center is less than or equal to 30 degree; Normal direction and the output B(4 of the interface center of described mating end (5) and coupling cavity (1) connecting place) and the normal direction of coupling cavity (1) connecting place interface center between angle be less than or equal to 30 degree.
7. H face-cloth font power divider according to claim 1, it is characterized in that, described coupling cavity (1), input (2), output terminals A (3), output B(4) and the structure that constitutes of mating end (5) be left and right sides mirror image symmetric shape, output terminals A (3) and output B(4) be symmetry arrangement about mating end (5).
8. H face-cloth font power divider according to claim 1, it is characterized in that described input (2), output terminals A (3) and output B(4) in have at least a port to be outside equipped with at least one and only to contact its bottom or metal column (6) at top being positioned at coupling cavity (1) with coupling cavity (1) connecting place.
9. H face-cloth font power divider according to claim 1, it is characterized in that, described input (2), output terminals A (3), output B(4) be provided with port width respectively at the end away from coupling cavity (1) and change transmission line (8) more than or equal to 10% than corresponding each port width, and also this transmission line is empty waveguide or ridge waveguide or coaxial line; Described coupling cavity (1), input (2), output terminals A (3), output B(4), the upper surface flush of mating end (5).
10. according to any described H face-cloth font power divider among the claim 1-9, it is characterized in that input (2), output terminals A (3), output B(4) be rectangular waveguide or ridge waveguide; Mating end (5) is rectangular waveguide; Coupling cavity (1) is cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156786 CN203134953U (en) | 2013-04-01 | 2013-04-01 | H-plane power divider in shape of Chinese character of Jin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156786 CN203134953U (en) | 2013-04-01 | 2013-04-01 | H-plane power divider in shape of Chinese character of Jin |
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| CN203134953U true CN203134953U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320156786 Expired - Fee Related CN203134953U (en) | 2013-04-01 | 2013-04-01 | H-plane power divider in shape of Chinese character of Jin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733815A (en) * | 2015-03-19 | 2015-06-24 | 成都天奥电子股份有限公司 | Ridge waveguide dielectric filter |
| CN108039545A (en) * | 2017-12-22 | 2018-05-15 | 北京无线电测量研究所 | A kind of Ka wave bands compact waveguide H faces one-to-two power splitter |
-
2013
- 2013-04-01 CN CN 201320156786 patent/CN203134953U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733815A (en) * | 2015-03-19 | 2015-06-24 | 成都天奥电子股份有限公司 | Ridge waveguide dielectric filter |
| CN108039545A (en) * | 2017-12-22 | 2018-05-15 | 北京无线电测量研究所 | A kind of Ka wave bands compact waveguide H faces one-to-two power splitter |
| CN108039545B (en) * | 2017-12-22 | 2020-09-18 | 北京无线电测量研究所 | Ka-waveband compact waveguide H-plane one-to-two power divider |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160401 |