CN109524753A - Waveguide coaxial microstrip transitions circuit - Google Patents
Waveguide coaxial microstrip transitions circuit Download PDFInfo
- Publication number
- CN109524753A CN109524753A CN201811198101.9A CN201811198101A CN109524753A CN 109524753 A CN109524753 A CN 109524753A CN 201811198101 A CN201811198101 A CN 201811198101A CN 109524753 A CN109524753 A CN 109524753A
- Authority
- CN
- China
- Prior art keywords
- waveguide
- coaxial
- microstrip
- inner conductor
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced with unbalanced lines or devices
- H01P5/103—Hollow-waveguide/coaxial-line transitions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/06—Movable joints, e.g. rotating joints
Abstract
The invention discloses a kind of Waveguide coaxial microstrip transitions circuits, including rectangular waveguide connector, coaxial insulator, microwave circuit box body and microstrip circuit；The coaxial insulator includes inner conductor, outer conductor and insulating supporting structure；Described inner conductor one end passes through the through-hole being arranged on wave guide wall and puts in the waveguide cavity of rectangular waveguide connector, and the other end is connect with microstrip line；Cover board is set above microwave circuit box body, forms the microwave cavity of sealing between cover board and box body.The present invention puts in the intracavitary of rectangular waveguide connector by inner conductor one end of coaxial insulator, realize waveguide and coaxial conversion, it can satisfy the sealing performance requirement of microwave circuit box body simultaneously, the other end is connect by modes such as welding, bonding or crimping with microstrip line, realize that waveguide mouth direction is vertical with the holding of microstrip transmission line direction coaxially with the conversion of microstrip line.Rectangular waveguide connector can be dismantled, and can change coaxial fitting into convenient for test when debugging.
Description
Technical field
The present invention relates to a kind of microwave circuits, more particularly to a kind of Waveguide coaxial microstrip transitions circuit of microwave signal.
Background technique
Rectangular waveguide connection is generallyd use in order to obtain low insertion loss, between antenna and transmitter, receiver, and includes
Transmitter, the receiver of the microwave power frequency shifts such as power amplifier chip, the low noise amplifier chip then use microstrip transmission line
It is integrated, it is therefore desirable to a kind of conversion circuit of rectangular waveguide to micro-strip.Rectangular waveguide can be converted directly into micro-strip transmission
Line, patent " waveguide with filtering characteristic to microstrip transition structure " (China, CN105576332A, 2016.05.11) realize
Waveguide with filtering characteristic is to the conversion of micro-strip, but this method directly converted can not achieve the sealing of microwave circuit, no
It is able to satisfy reliability requirement.In order to realize sealing, need to carry out transition, a kind of patent " detachable waveguide using coaxial insulator
Coaxial converter " (China, CN200953376Y, 2007.09.26) propose a kind of detachable waveguide for system debug
Coaxial converter may be implemented the conversion of waveguide to micro-strip, while realize sealing, but detachably, therefore the purpose of the invention is
Sub-miniature A connector is increased between coaxial insulator and rectangular waveguide, structure is complicated, and sub-miniature A connector limits the highest of invention
Frequency of use.Patent " micro-strip waveguide transitions connector " (China, CN201332132Y, 2009.10.21) proposes a kind of micro-strip wave
Crossover sub is led, realizes the conversion of waveguide to micro-strip, while realizing sealing, the waveguide mouth direction and microstrip transmission line side of the invention
Need waveguide mouth direction vertical with the holding of microstrip transmission line direction to being consistent, but in some applications.
Summary of the invention
In order to overcome the disadvantages mentioned above of the prior art, the present invention provides a kind of waveguide mouth directions and microstrip transmission line direction
Vertical Waveguide coaxial microstrip transitions circuit is kept, while not influencing the sealing performance of microwave circuit, the present invention has structure letter
It is single, handling ease, feature low in cost.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Waveguide coaxial microstrip transitions circuit, including
Rectangular waveguide connector, coaxial insulator, microwave circuit box body and microstrip circuit；The coaxial insulator includes inner conductor, leads outside
Body and insulating supporting structure；Described inner conductor one end passes through the waveguide that the through-hole being arranged on wave guide wall puts in rectangular waveguide connector
Intracavitary, the other end is connect with microstrip line；Cover board is set above microwave circuit box body, forms sealing between cover board and box body
Microwave cavity.
Compared with prior art, the positive effect of the present invention is:
The present invention puts in the intracavitary of rectangular waveguide connector by inner conductor one end of coaxial insulator, realize waveguide with it is coaxial
Conversion, while can satisfy the sealing performance requirement of microwave circuit box body, the other end passes through the modes such as welding, bonding or crimping
It is connect with microstrip line, realizes that waveguide mouth direction is vertical with the holding of microstrip transmission line direction coaxially with the conversion of microstrip line.Rectangular wave
Docking head can be dismantled, and can change coaxial fitting into convenient for test when debugging.The present invention can utilize mature machining work
Skill is processed, have it is easy to use, structure is simple, is easy to easy, advantage at low cost.The present invention has staying less than 1.5
Wave performance, matching are good.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the cross-sectional view of coaxial insulator 2 of the invention；
Fig. 3 is the standing wave of embodiment of the present invention.
Specific embodiment
A kind of Waveguide coaxial microstrip transitions circuit, as depicted in figs. 1 and 2, comprising: rectangular waveguide connector 1, coaxial insulator
2, microwave circuit box body 3, microstrip circuit 4, waveguide cavity 5, inner conductor 6, through-hole 7, cover board 8, microwave cavity 9, waveguide cavity bottom 10,
Waveguide cavity side wall 11, outer conductor 12, insulating supporting structure 13 etc., in which:
The present invention is integrally made of rectangular waveguide connector 1, coaxial insulator 2, microwave circuit box body 3 and microstrip circuit 4.
The coaxial insulator 2 is made of coaxial cylindrical inner conductor 6, outer conductor 12, insulating supporting structure 13, and inner conductor 6 passes through
13 middle part of insulating supporting structure, outer conductor 12 are located at 13 outside of insulating supporting structure.Described 6 one end of inner conductor puts in rectangular waveguide
In the waveguide cavity 5 of connector 1, through-hole 7 is machined on wave guide wall so that inner conductor 6 passes through, through-hole 7 and inner conductor 6 are coaxial, inner conductor
6 carry out energy exchange with waveguide cavity 5 in such a way that the face E probe couples, and realize the conversion of coaxial waveguide；The other end passes through weldering
The modes such as connect, be bonded or crimp to connect with microstrip line, realize coaxially with the conversion of microstrip line, waveguide mouth direction and microstrip transmission line
Direction keeps vertical.After to microwave circuit assembly, cover board 8 is welded or is bonded on microwave circuit box body 3, realizes microwave
The sealing of cavity 9.
The rectangular waveguide connector 1 is the connector connecting with outer rectangular waveguide, includes flange-interface.
The coaxial insulator 2 is that one section of inner conductor stretches out the coaxial line come toward both ends, and outer conductor can pass through welding
Or the mode of bonding is fixed together with microwave circuit box body, and keeps sealing performance.
The microwave circuit box body 3 is the structural member for carrying microwave circuit.
This example selects a frequency for 50GHz~75GHz Waveguide coaxial microstrip transitions circuit, but the present invention is applicable in frequency
Range is 300MHz~300GHz.
Select the broadside of the waveguide cavity 5 of rectangular waveguide connector 1 having a size of 3.76mm according to working frequency, narrow side having a size of
The diameter of 1.88mm, through-hole 7 are 0.7mm, length 1.15mm, positioned at the center of rectangular waveguide broadside, coaxial insulator 2
The diameter of inner conductor 6 is 0.3mm, and the dielectric constant of insulating supporting structure 13 is 4.1, loss angle tangent 0.06, outer diameter
1.67mm, 6 one end of inner conductor put in waveguide cavity 5, and 6 center of inner conductor is 1.25mm at a distance from the bottom of waveguide cavity 5 10, inside lead
The end of body 6 is 0.93mm at a distance from the side wall 11 of waveguide cavity 5, and 4 substrate of microstrip circuit is Rogers RT duroid
5880, thickness 0.127mm, micro belt line width 0.38mm.
The specific simulation result based on HFSS of the embodiment of the invention is described as follows:
As shown in Fig. 2, Waveguide coaxial microstrip transitions circuit proposed by the present invention is less than in the standing wave of 50GHz~75GHz
1.5, matching is good.
The working principle of the invention is:
The invention discloses a kind of Waveguide coaxial microstrip transitions circuit, waveguide mouth direction and microstrip transmission line direction keep hanging down
Directly, the inner conductor one end for welding or being bonded in the coaxial insulator on microwave circuit box body puts in the intracavitary of rectangular waveguide connector,
Realize that waveguide and coaxial conversion, the other end are connect by modes such as welding, bonding or crimping with microstrip line, realization coaxially with it is micro-
Conversion with line, while can satisfy the sealing performance requirement of microwave circuit box body.
The present invention proposes that a kind of waveguide mouth direction keeps vertical Waveguide coaxial microstrip transitions electricity with microstrip transmission line direction
Road, specific method are first will to carry out transition using coaxial insulator between waveguide and micro-strip, pass through insulator and microstrip circuit
The welding of box body or bonding require to meet the sealing performance of microwave circuit, have structure simple, easy to process, equal spies at low cost
Point.
Claims (10)
1. a kind of Waveguide coaxial microstrip transitions circuit, it is characterised in that: including rectangular waveguide connector, coaxial insulator, microwave electricity
Road box body and microstrip circuit；The coaxial insulator includes inner conductor, outer conductor and insulating supporting structure；Described inner conductor one end
In the waveguide cavity that the through-hole being arranged on wave guide wall puts in rectangular waveguide connector, the other end is connect with microstrip line；In microwave
Cover board is set above circuit box body, forms the microwave cavity of sealing between cover board and box body.
2. Waveguide coaxial microstrip transitions circuit according to claim 1, it is characterised in that: the through-hole and inner conductor are same
Axis.
3. Waveguide coaxial microstrip transitions circuit according to claim 2, it is characterised in that: the inner conductor is visited by the face E
The mode and waveguide cavity of needle coupling carry out energy exchange, realize the conversion of coaxial waveguide.
4. Waveguide coaxial microstrip transitions circuit according to claim 1, it is characterised in that: the inner conductor by welding,
Bonding or the mode of crimping are connect with microstrip line.
5. Waveguide coaxial microstrip transitions circuit according to claim 1, it is characterised in that: the rectangular waveguide connector includes
Flange-interface, for being connect with outer rectangular waveguide.
6. Waveguide coaxial microstrip transitions circuit according to claim 1, it is characterised in that: the coaxial insulator is one section
Inner conductor stretches out the coaxial line come toward both ends.
7. Waveguide coaxial microstrip transitions circuit according to claim 6, it is characterised in that: the outer of coaxial insulator is led
Body is fixed together by way of welding or being bonded with microwave circuit box body.
8. Waveguide coaxial microstrip transitions circuit according to claim 1, it is characterised in that: the wave of the rectangular waveguide connector
The broadside of guide cavity is having a size of 3.76mm, and narrow side is having a size of 1.88mm；The diameter of the through-hole is 0.7mm, length 1.15mm, position
In the center of rectangular waveguide broadside.
9. Waveguide coaxial microstrip transitions circuit according to claim 8, it is characterised in that: led in the coaxial insulator
The diameter of body is 0.3mm, and the dielectric constant of insulating supporting structure is 4.1, and loss angle tangent 0.06, outer diameter 1.67mm is inside led
Body center is 1.25mm at a distance from the bottom of waveguide cavity, and the end of inner conductor is 0.93mm at a distance from the side wall of waveguide cavity.
10. Waveguide coaxial microstrip transitions circuit according to claim 9, it is characterised in that: the microstrip circuit substrate is
Rogers RT duroid 5880, with a thickness of 0.127mm, micro belt line width 0.38mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811198101.9A CN109524753A (en) | 2018-10-15 | 2018-10-15 | Waveguide coaxial microstrip transitions circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811198101.9A CN109524753A (en) | 2018-10-15 | 2018-10-15 | Waveguide coaxial microstrip transitions circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109524753A true CN109524753A (en) | 2019-03-26 |
Family
ID=65772067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811198101.9A Pending CN109524753A (en) | 2018-10-15 | 2018-10-15 | Waveguide coaxial microstrip transitions circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109524753A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
| CN111370837A (en) * | 2020-03-26 | 2020-07-03 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953376Y (en) * | 2006-04-30 | 2007-09-26 | 中国航天科技集团公司第五研究院第五○四研究所 | Disassembling waveguide coaxle converter |
| CN201332132Y (en) * | 2009-01-07 | 2009-10-21 | 南京恒电电子有限公司 | Microstrip wave guide adapter |
| FR2944916A1 (en) * | 2009-04-28 | 2010-10-29 | Thales Sa | Device for transition between wave guide and connector e.g. microstrip line in field of antenna, has impedance matching step enabling radioelectric performances of device to depend on machining precision and positioning precision |
| CN202384474U (en) * | 2011-12-20 | 2012-08-15 | 西安普天天线有限公司 | Microwave coaxial waveguide converter |
| CN103579729A (en) * | 2013-10-31 | 2014-02-12 | 西安空间无线电技术研究所 | Satellite-borne low insertion loss vertical conversion circuit from high frequency micro band to waveguide broad band |
| US20160240909A1 (en) * | 2015-02-18 | 2016-08-18 | National Instruments Corporation | Right Angle Transition to Circuit |
| CN108134171A (en) * | 2017-12-20 | 2018-06-08 | 北京遥感设备研究所 | A kind of Ku band broadband Waveguide-microbelt converters of coaxial probe transition type |
-
2018
- 2018-10-15 CN CN201811198101.9A patent/CN109524753A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953376Y (en) * | 2006-04-30 | 2007-09-26 | 中国航天科技集团公司第五研究院第五○四研究所 | Disassembling waveguide coaxle converter |
| CN201332132Y (en) * | 2009-01-07 | 2009-10-21 | 南京恒电电子有限公司 | Microstrip wave guide adapter |
| FR2944916A1 (en) * | 2009-04-28 | 2010-10-29 | Thales Sa | Device for transition between wave guide and connector e.g. microstrip line in field of antenna, has impedance matching step enabling radioelectric performances of device to depend on machining precision and positioning precision |
| CN202384474U (en) * | 2011-12-20 | 2012-08-15 | 西安普天天线有限公司 | Microwave coaxial waveguide converter |
| CN103579729A (en) * | 2013-10-31 | 2014-02-12 | 西安空间无线电技术研究所 | Satellite-borne low insertion loss vertical conversion circuit from high frequency micro band to waveguide broad band |
| US20160240909A1 (en) * | 2015-02-18 | 2016-08-18 | National Instruments Corporation | Right Angle Transition to Circuit |
| CN108134171A (en) * | 2017-12-20 | 2018-06-08 | 北京遥感设备研究所 | A kind of Ku band broadband Waveguide-microbelt converters of coaxial probe transition type |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
| CN110676551B (en) * | 2019-09-23 | 2021-09-17 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
| CN111370837A (en) * | 2020-03-26 | 2020-07-03 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
| CN111370837B (en) * | 2020-03-26 | 2021-10-01 | 北京遥测技术研究所 | Welding device and method suitable for feedback type waveguide coaxial conversion structure |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190326 |