CN105470613A - Bent compact four-port network - Google Patents
Bent compact four-port network Download PDFInfo
- Publication number
- CN105470613A CN105470613A CN201610049915.0A CN201610049915A CN105470613A CN 105470613 A CN105470613 A CN 105470613A CN 201610049915 A CN201610049915 A CN 201610049915A CN 105470613 A CN105470613 A CN 105470613A
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- China
- Prior art keywords
- port
- compact
- transmission line
- waveguide
- ridge
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/20—Magic-T junctions
Abstract
The invention discloses a bent compact four-port network, which comprises a coupling cavity, a port A, a port B, a port C and a port D, wherein the port A, the port B, the port C and the port D are communicated with the coupling cavity; the port B and the port C are located at the left side and the right side of the port A respectively; the port D is opposite to the port A; and the port D is externally connected with a ridge waveguide or a double-ridge waveguide, which is bent downwards. When a matched absorbent material is added to the ridge waveguide or the double-ridge waveguide, the bent compact four-port network becomes a quasi plane waveguide magic T and becomes a compact waveguide power divider. The bent compact four-port network disclosed by the invention has the characteristics of simple and compact structure, relative operation bandwidth up to 41%, low processing and debugging cost, good isolation between output ends, high amplitude and phase accuracy between the output ends and the like, and can be widely applied to the fields of an antenna array, a phased array radar, power distribution and synthesis and the like.
Description
Technical field
The present invention relates to a kind of bending compact four port network
.specifically, the Compact waveguide power divider of the phases such as a kind of constant amplitude is related to.
Background technology
Power splitter is the general original paper of one in modern microwave communication and Military Electronics system.Waveguide power divider, due to features such as its power capacity are high, insertion loss is low, is applied very extensive.Two road waveguide power dividers both can be used alone, and also can form multichannel power division network, for fields such as phased array radar, antenna array and power combing by serial connection.Existing two road waveguide power dividers mainly comprise E MianTXing branch, H MianTXing branch, waveguide magic T, H face kinds of Slot Coupled Waveguide Hybrids, E face wave guide ring electric bridge (RingHybrid or Rat-RaceHybrid) and H face wave guide ring electric bridge etc.Wherein first two device due to isolation between two outputs low, the mismatch of any one output port all can have a strong impact on amplitude and the phase accuracy of power division.Have good isolation between the output port of waveguide magic T, but the axis direction of its four waveguide port points to three mutually perpendicular directions respectively, form complicated 3-D solid structure.Therefore waveguide magic T difficult processing, cost is high, and device is all larger in length, width and height three, is unfavorable for the miniaturization of device, is more not suitable as unit serial connection and forms 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 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, and process with utilizing traditional digital control milling technology disposable and convenient respectively, machining accuracy improves greatly, and processing cost reduces greatly.But when multichannel power division network Miniaturization Design, phase compensating circuit can make device volume and design difficulty greatly improve.Meanwhile, the bandwidth of operation of H-face kinds of Slot Coupled Waveguide Hybrids is narrow.E face wave guide ring electric bridge (RingHybrid or Rat-RaceHybrid) and H face wave guide ring electric bridge are also because volume ratio is larger, bandwidth of operation is narrow, its purposes receives restriction, and particularly when multichannel power division network Miniaturization Design, wave guide ring electric bridge is seldom used.
Summary of the invention
The object of the present invention is to provide a kind of Compact type broadband waveguide power divider.
To achieve these goals, the technical solution used in the present invention is as follows: bending compact four port network, comprises coupling cavity, the port A be communicated with coupling cavity, port B and port C and port D; Port B and port C lays respectively at the left and right sides of port A, and port D is relative with port A.Coupling cavity can have any shape, and axis column is upward good, wherein can also add Metal loading, to improve the performance of device.
Port A, port B and port C are broadside rectangular waveguide in the vertical direction: the height of described ports port A, port B and port C is greater than its width.Like this, the small-sized rectangular waveguide in narrow limit can be adopted to realize the miniaturization of device.At this moment, the direction of an electric field of the center of port D vertically, can be rectangular waveguide or ridge waveguide.When using as power splitter, if port A is input, port B and port C is output, and port D is isolation end, should matching connection load.
As required, the axis direction of port B and port C and the angle of port A can be set to 0 ~ 180 degree arbitrarily angled.Preferably design, this angle is 0 degree, 90 degree or 180 degree.If port A is input, port B and port C is output, and it is identical with input direction that three kinds of preferred configuration correspond to two outputs respectively, vertical and contrary three kinds of situations.
In order to the volume of reduction of device, we select the port D external-connected port transmission line down as isolation end.Namely described port D is connected with away from one end of coupler the transmission line that axis vertically arranges.Port D and transmission line form a L shape structure, and one end of this L shape structure is the one end in port D butt coupling chamber, and the other end of this L shape structure is transmission line port vertically downward.
When traditional magic T uses as power splitter, its isolation end vertically points to top.The length of isolation end is sufficiently long, to place the absorber that longer cross section increases gradually, thus improves the isolation of power splitter.By contrast, the present invention selects to allow isolation end sensing below efficiently reduce the overall height of device, is conducive to the further miniaturization of device.
In order to the volume of further reduction of device, transmission line adopts the cross section ridge waveguide less than rectangular waveguide: described transmission line is the ridge waveguide adding metal ridge A, or transmission line is the ridge waveguide adding metal ridge B, or transmission line is the ridge waveguide simultaneously adding metal ridge A and metal ridge B; Wherein metal ridge A is connected with the sidewall of the close port A of transmission line; Metal ridge B is connected with the sidewall away from port A of transmission line.
In order to the bandwidth of operation of broadening device, in port D, be at least provided with a metal column be only connected with port D in bottom.
In order to the bandwidth of operation of further broadening device, between at least one port in coupling cavity and port A, port B and port C, be provided with at least one-level matching section.
In order to realize the phase power division such as constant amplitude, this bending compact four port network is arranged to left and right mirror image: form all parts of this bending compact four port network, comprise coupling cavity, port A, port B and port C, port D, transmission line, metal ridge A, metal ridge B, metal column and individual port match section, form left and right mirror image.
For the ease of processing, coupling cavity, the upper surface of port A, port B and port C, port D and transmission line all flushes.At this moment, all structures of this bending compact four port network can be arranged on a base, adopt that Numerical-control Milling Machines is disposable machines.When utilizing this bending compact four port network multiple to form multichannel merit point networking, this feature is a little more obvious.
First the present invention mainly changes conventional waveguide evil spirit the 4th of T port upwards into the position coplanar with it from the plane orthogonal position upwards with its excess-three port axis place, and then bends downwards.This change makes traditional waveguide magic T from three-dimensional structure first complanation structure, makes it highly greatly reduce, is finally bent downwards by the 4th port, the volume of further reduction of device.The bandwidth of operation of the magic T of all right broadening tradition of the present invention.By arranging ridge waveguide at the isolation end of the magic T of tradition and add absorbing material, this invention is made to be very suitable for forming the power division network of the phases such as multistage multi-channel height isolation constant amplitude.The present invention can be used widely in the field such as array antenna, power combing.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of schematic top plan view of the present invention and embodiment 1.
Fig. 2 is the schematic side view in the A direction of Fig. 1.
Fig. 3 is the schematic top plan view of embodiment 2.
Fig. 4 is the schematic top plan view of embodiment 3.
The corresponding title of attached number in the figure: 1-coupling cavity, 2-port A, 3-port B, 4-port C, 5-port D, 51-metal column, 6-transmission line, 61-metal ridge A, 62-metal ridge B, 7-matching section.
Some definition:
In fig. 1-3, the definition of all directions herein, before being first positioned over scope of readers by paper level.The height of each structure refers to its size in vertical direction.The width of each port refers to it in the horizontal plane perpendicular to the size of the normal direction of this port surface, and horizontal plane refers to the paper in figure.
Embodiment
embodiment 1
As depicted in figs. 1 and 2.
Bending compact four port network, comprises coupling cavity 1, the port A2 be communicated with coupling cavity 1, port B3 and port C4 and port D5; Port B3 and port C4 lays respectively at the left and right sides of port A2, and port D5 is relative with port A2.
The width that height is greater than the width of port A2, the height of port B3 is greater than the width of port B3, the height of port C4 is greater than port B3 of described port A2, the direction of an electric field of the center of port D5 is vertically; Port 5 is rectangular waveguide or ridge waveguide.
The axis direction of port B3 and port C4 and the angle of port A2 are 135 degree.
Port D5 external-connected port transmission line 6 down.
The double ridged waveguide that transmission line 6 adopts cross section less than rectangular waveguide: described transmission line 6 adds the ridge waveguide of metal ridge A61 and metal ridge B62 simultaneously.Metal ridge A61 is connected with the sidewall of the close port A2 of transmission line 6; Metal ridge B62 is connected with the sidewall away from port A2 of transmission line 6.
A metal column 51 be only connected with port D5 in bottom is provided with in port D5.
This bending compact four port network is arranged to left and right mirror image: form all parts of this bending compact four port network, comprise coupling cavity 1, port A2, port B3 and port C4, port D5, transmission line 6, metal ridge A61, metal ridge B62 and metal column 51, form left and right mirror image.
Coupling cavity 1, the upper surface of port A2, port B3 and port C4, port D5 and transmission line 6 all flushes.
Embodiment 2
As shown in Figure 3.Compared with embodiment 1, difference is only, at coupling cavity 1 and port A2, is all provided with two-stage matching section 7 between port B3 and port C4.
Coupling cavity is rectangular configuration.Transmission line 6 is single ridged waveguides.
The axis direction of port B3 and port C4 and the angle of port A2 are 90 degree.
Embodiment 3
As shown in Figure 4.Compared with embodiment 1, difference is only, at coupling cavity 1 and port A2, is all provided with two-stage matching section 7 between port B3 and port C4.
Coupling cavity is rectangular configuration.
The axis direction of port B3 and port C4 and the angle of port A2 are 0 degree.
The present invention is for the ease of processing with Numerical-control Milling Machines, and all inner corner angle can lead circle.
Bending compact four port network of the present invention have simple and compact for structure, the relative bandwidth of operation (full bandwidth of rectangular waveguide) up to 41%, processing and debugging cost are low, width phase precision high between good, the output of isolation between output.Particularly its directrix plane structure, both can be used alone, more can form multi-path power divider, combiner, comparator etc.These devices can be divided into base and cover plate, adopt that Numerical-control Milling Machines is disposable machines respectively, ensure that the machining accuracy of device well.This device can be widely used in military affairs and the civil areas such as radar, missile guidance, communication.
Claims (9)
1. bend compact four port network, it is characterized in that, comprise coupling cavity (1), the port A(2 be communicated with coupling cavity (1)), port B(3), port C(4) and port D(5); Port B (3) and port C(4) lay respectively at port A(2) the left and right sides, port D(5) with port A(2) relative; Described port D(5) be connected with away from one end of coupling cavity (1) transmission line (6) that axis vertically arranges, port D(5) form a L shape structure with transmission line (6), one end of this L shape structure is port D(5) one end of butt coupling chamber (1), the other end of this L shape structure is transmission line (6) port vertically downward.
2. bending compact four port network according to claim 1, is characterized in that, described port B(3) and port C(4) axis direction and port A(2) axis direction and angle be 0 degree or 90 degree or 180 degree.
3. bending compact four port network according to claim 1, is characterized in that, described transmission line (6) be add metal ridge A(61) ridge waveguide.
4. bending compact four port network according to claim 1, is characterized in that, described transmission line (6) be add metal ridge B(62) ridge waveguide.
5. bending compact four port network according to claim 1, is characterized in that, described transmission line (6) be simultaneously add metal ridge A(61) and metal ridge B(62) ridge waveguide; Wherein metal ridge A(61) with the close port A(2 of transmission line (6)) sidewall be connected; Metal ridge B(62) with transmission line (6) away from port A(2) sidewall be connected.
6. bending compact four port network according to claim 1, is characterized in that, port D(5) in be at least provided with one only at bottom and port D(5) metal column (51) that is connected.
7. bending compact four port network according to claim 1 is characterized in that, at coupling cavity (1) and port A(2), port B(3) and port C(4) at least one port between be provided with the matching section (7) of at least one-level.
8. bending compact four port network according to claim 1-7 any one, is characterized in that, forms all parts of this bending compact four port network and forms left and right mirror image.
9. bending compact four port network according to claim 1-7 any one, is characterized in that, coupling cavity (1), port A(2), port B(3) and port C(4), port D(5) and the upper surface of transmission line (6) all flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049915.0A CN105470613A (en) | 2016-01-26 | 2016-01-26 | Bent compact four-port network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049915.0A CN105470613A (en) | 2016-01-26 | 2016-01-26 | Bent compact four-port network |
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| Publication Number | Publication Date |
|---|---|
| CN105470613A true CN105470613A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610049915.0A Withdrawn CN105470613A (en) | 2016-01-26 | 2016-01-26 | Bent compact four-port network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450644A (en) * | 2016-12-08 | 2017-02-22 | 江苏贝孚德通讯科技股份有限公司 | Novel plane wave magic T |
-
2016
- 2016-01-26 CN CN201610049915.0A patent/CN105470613A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450644A (en) * | 2016-12-08 | 2017-02-22 | 江苏贝孚德通讯科技股份有限公司 | Novel plane wave magic T |
| CN106450644B (en) * | 2016-12-08 | 2021-12-21 | 江苏贝孚德通讯科技股份有限公司 | Novel magic T of planar waveguide |
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Application publication date: 20160406 |