CN105449330A - Ku wave band magnetic coupling waveguide coaxial converting circuit - Google Patents
Ku wave band magnetic coupling waveguide coaxial converting circuit Download PDFInfo
- Publication number
- CN105449330A CN105449330A CN201510845875.6A CN201510845875A CN105449330A CN 105449330 A CN105449330 A CN 105449330A CN 201510845875 A CN201510845875 A CN 201510845875A CN 105449330 A CN105449330 A CN 105449330A
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- Prior art keywords
- coaxial
- waveguide
- magnetic coupling
- wave band
- circuit
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- 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
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a Ku wave band magnetic coupling waveguide coaxial converting circuit, which is characterized by comprising a rectangular waveguide, coaxial probe, a metal sleeve, a grounding lead and a detachable SMA joint; the rectangle waveguide is a hollowed cube with an installation plane, the cross section of which is of a shape of Chinese character Ji; one end of the installation plane is provided with an opening; the end surface corresponding to the opening is provided with a coaxial probe installation hole; the two sides of the vacuum cube in the length direction are thin walls; the side walls in the width direction are thick walls; the coaxial probe and the metal sleeve are fixed through welding and then is welded in the installation hole of the coaxial probe; the grounding lead is connected between the rectangle waveguide thick wall and the metal sleeve through welding; and the inner hole of the detachable SMA joint sleeves the inner conductor of the coaxial probe and is connected to the rectangle waveguide. The Ku wave band magnetic coupling waveguide coaxial converting circuit can realize the signal transmission of the Ku waveband signal between the waveguide and the coaxial.
Description
Technical field
The present invention relates to a kind of Ku wave band waveguide coaxial connecter circuit, particularly relate to a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit.
Background technology
Waveguide coaxial connecter circuit is the critical component of microwave and millimeter wave hybrid integrated circuit, due to (as the input of receiving circuit or the output of radiating circuit) foremost that it is positioned at the solid-state hybrid integrated circuit of all kinds of microwave and millimeter wave, its performance directly affects the technical indicator of complete machine.
The advantage of Waveguide coaxial sonde-type conversion is: insertion loss is low, voltage standing wave ratio is little, and structure is easy to processing and debugging, and therefore coaxial probe type circuit uses also extensive.Pattern based on coupling is different, and coaxial probe type waveguide coaxial connecter circuit is divided into again two large classes, i.e. electric coupling and magnetic coupling.In the application of actual microwave circuit, designer can select the coupled mode of waveguide coaxial connecter usually according to the physical arrangement of side circuit.
Electric coupling type waveguide coaxial connecter circuit needs larger physical space usually, and by contrast, magnetic coupling type waveguide coaxial connecter circuit then has more standby advantage under tight space.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of magnetic coupling waveguide coaxial connecter circuit working in Ku wave band, utilize this circuit, Ku band signal can be realized at waveguide and the signal transmission with between centers.
When microwave signal is transmitted in the middle of coaxial line, its main mould is TEM mould, and when transmitting in rectangular waveguide, its main mould is TE10 mould (H10 mould).Different from electric coupling waveguide coaxial connecter, magnetic coupling waveguide coaxial connecter is fixed together by an end face of the outer conductor of coaxial line and rectangular waveguide, meanwhile, the inner wire of coaxial line is deep in waveguide cavity as probe, uses as excitation or coupled antenna.Inner wire now can be activated to the electromagnetic energy in coaxial line rectangular waveguide becomes TE10 ripple, or becomes TEM ripple in TE10 Wave coupling to coaxial line.Energy one-way transmission after being energized to make TE10 ripple, is needing to provide short circuit in distance inner wire probe a distance.
In order to make the performance of excitation or coupling reach best, when design, need the thickness of coaxial probe, length and short circuit distance etc. to be set to optimized variable.
For achieving the above object, the present invention is realized by following technological means:
A kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit, is characterized in that: comprise rectangular waveguide, coaxial probe, metal sleeve, earth lead and detachable sub-miniature A connector; Described rectangular waveguide is the hollow cuboid with mounting plane, its cross section is a few character form structure, and be provided with opening with mounting plane one end, the end face that opening is corresponding is provided with coaxial probe installing hole, the two side of hollow cuboid length direction is thin-walled, and the two side of Width is heavy wall; Described coaxial probe and metal sleeve are welded on after being welded and fixed connection in coaxial probe installing hole; Earth lead has been welded to connect between rectangular waveguide heavy wall and metal sleeve; The inner wire that the endoporus of described detachable sub-miniature A connector is inserted in coaxial probe is connected with rectangular waveguide.
Further:
The heavy wall of described rectangular waveguide is 17mm, and thin-walled is 8mm.
Described coaxial probe is the isolator that Johnson company of the U.S. produces, and model is 142-1000-002, and its outer conductor diameter is 2.5mm, and inner wire diameter is 0.38mm.
Described metal sleeve internal diameter is 0.4mm, and external diameter is 1.2mm, and length is 3.65mm.
Described earth lead diameter is 0.5mm, and length is 4mm.
Described detachable sub-miniature A connector is the sub-miniature A connector that Johnson company of the U.S. produces, and model is 142-1701-616.
The material of described rectangular waveguide is brass, rectangular waveguide surface gold-plating, and rectangular waveguide inner surface fineness is less than 0.8.
Described detachable sub-miniature A connector and rectangular waveguide are bolted.
The invention has the beneficial effects as follows: a kind of magnetic coupling waveguide coaxial connecter circuit working in Ku wave band provided by the invention, utilizes this circuit, can realize Ku band signal at waveguide and the signal transmission with between centers.
Accompanying drawing explanation
Fig. 1 schematic block circuit diagram; Fig. 2 coaxial probe and metal sleeve assembling schematic diagram; Fig. 3 assembles schematic diagram before installing detachable sub-miniature A connector, and wherein (1) is Width schematic cross-section, (2) length direction schematic cross-section; Fig. 4 is appearance schematic diagram after the detachable sub-miniature A connector of installation, and wherein, (1) is upward view, and (2) are front view, and (3) are left view; Fig. 5 metal sleeve structural representation; Fig. 6 is Rectangular Waveguide Structure schematic diagram, and wherein (1) is upward view, and (2) are front view, and (3) are left view, and (4) are vertical view; Fig. 7 is simulation result schematic diagram; Fig. 8 is test macro schematic diagram.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
A kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit, is characterized in that: comprise rectangular waveguide 1, coaxial probe 2, metal sleeve 3, earth lead 4 and detachable sub-miniature A connector 5; Described rectangular waveguide 1 is the hollow cuboid with mounting plane 1-1, its cross section is a few character form structure, opening is being provided with mounting plane 1-1 one end, the end face that opening is corresponding is provided with coaxial probe installing hole 1-4, the two side of hollow cuboid length direction is thin-walled 1-3, and the two side of Width is heavy wall 1-2; Be welded in coaxial probe installing hole 1-4 after described coaxial probe 2 and metal sleeve 3 are welded and fixed connection; Earth lead 4 has been welded to connect between rectangular waveguide heavy wall 1-2 and metal sleeve 3; The inner wire that the endoporus of described detachable sub-miniature A connector 4 is inserted in coaxial probe 2 is connected with rectangular waveguide 1.
Further:
The heavy wall 1-2 of described rectangular waveguide 1 is 17mm, and thin-walled 1-3 is 8mm.
Described coaxial probe 2 is the isolator that Johnson company of the U.S. produces, and model is 142-1000-002, and its outer conductor diameter is 2.5mm, and inner wire diameter is 0.38mm.
Described metal sleeve 3 internal diameter is 0.4mm, and external diameter is 1.2mm, and length is 3.65mm.
Described earth lead 4 diameter is 0.5mm, and length is 4mm.
Described detachable sub-miniature A connector 5 is the sub-miniature A connector that Johnson company of the U.S. produces, and model is 142-1701-616.
The material of described rectangular waveguide 1 is brass, rectangular waveguide 1 surface gold-plating, and rectangular waveguide 1 inner surface fineness is less than 0.8.
Described detachable sub-miniature A connector 5 is bolted with rectangular waveguide 1.
As shown in accompanying drawing 1-8, the present invention includes rectangular waveguide 1, coaxial probe 2, metal sleeve 3, earth lead 4 and detachable sub-miniature A connector 5.Wherein coaxial probe 2 and metal sleeve 3 are fixed together by welding, and are then welded in rectangular waveguide 1 cavity by them, the end of earth lead 4 and wave guide wall are weldingly connected, and finally install detachable sub-miniature A connector 5.Ku band microwave signal, from the input of rectangular waveguide mouth, jointly carries out patten transformation by coaxial probe 2, metal sleeve 3 and earth lead 4, finally exports from detachable sub-miniature A connector 5.
Consult Fig. 2, metal sleeve 3 is stretched in one end longer for the inner wire of coaxial probe 2, both fixing with solder, and ensure that the end face of metal sleeve 3 and the end face distance of coaxial probe 2 are 1.3mm.
Consult Fig. 3, coaxial probe 2 fixed with each other and metal sleeve 3 are filled in rectangular waveguide 1 in the lump, is fixed by solder; Then, between the heavy wall 1-2 and metal sleeve 3 of rectangular waveguide, both are made to be connected with earth lead 4 welding.
Consult Fig. 4, be fixed on by detachable sub-miniature A connector 5 on the rectangular waveguide 1 assembled, the inner wire of coaxial probe 2 inserts in the endoporus of detachable sub-miniature A connector 5, fixes the mounting flange of detachable sub-miniature A connector 5 with the screw of 2 pieces of M2.According to method for designing of the present invention, the circuit board of the Ku wave band magnetic coupling waveguide coaxial connecter circuit of making as shown in Figure 4.
Fig. 5 is the metalworking drawing of metal sleeve 3, and Fig. 6 is the metalworking drawing of rectangular waveguide 1, and wherein without individual tolerance is free tolerance.Rectangular waveguide adopts brass (H62) to make, surface gold-plating, and wherein waveguide interior finish requires to be less than 0.8.
The simulation result of Ku wave band magnetic coupling waveguide coaxial connecter as shown in Figure 7 designed according to this invention, and operating frequency is in the scope of 14GHz to 14.5GHz, and return loss of the present invention is for being less than-22.5dB, and insertion loss is for being less than-0.1dB.
In order to verify this design theory, make a pair waveguide coaxial connecter, it is made to link into an integrated entity 6 back-to-back, according to the connected mode of Fig. 8, vector network analyzer 7 is used to test its S parameter, test result is as follows: frequency range is 14GHz to 14.5GHz, and in band, return loss is less than-22.5dB, and insertion loss is the inherent loss that-0.2dB(comprises test macro).
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and specification; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (8)
1. a Ku wave band magnetic coupling waveguide coaxial connecter circuit, is characterized in that: comprise rectangular waveguide, coaxial probe, metal sleeve, earth lead and detachable sub-miniature A connector; Described rectangular waveguide is the hollow cuboid with mounting plane, its cross section is a few character form structure, and be provided with opening with mounting plane one end, the end face that opening is corresponding is provided with coaxial probe installing hole, the two side of hollow cuboid length direction is thin-walled, and the two side of Width is heavy wall; Described coaxial probe and metal sleeve are welded on after being welded and fixed connection in coaxial probe installing hole; Earth lead has been welded to connect between rectangular waveguide heavy wall and metal sleeve; The inner wire that the endoporus of described detachable sub-miniature A connector is inserted in coaxial probe is connected with rectangular waveguide.
2. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, is characterized in that: the heavy wall of described rectangular waveguide is 17mm, and thin-walled is 8mm.
3. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, it is characterized in that: described coaxial probe is the isolator that Johnson company of the U.S. produces, model is 142-1000-002, and its outer conductor diameter is 2.5mm, and inner wire diameter is 0.38mm.
4. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, it is characterized in that: described metal sleeve internal diameter is 0.4mm, external diameter is 1.2mm, and length is 3.65mm.
5. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, it is characterized in that: described earth lead diameter is 0.5mm, length is 4mm.
6. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, is characterized in that: described detachable sub-miniature A connector is the sub-miniature A connector that Johnson company of the U.S. produces, and model is 142-1701-616.
7. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, is characterized in that: the material of described rectangular waveguide is brass, rectangular waveguide surface gold-plating, and rectangular waveguide inner surface fineness is less than 0.8.
8. a kind of Ku wave band magnetic coupling waveguide coaxial connecter circuit as claimed in claim 1, is characterized in that: described detachable sub-miniature A connector and rectangular waveguide are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845875.6A CN105449330A (en) | 2015-11-26 | 2015-11-26 | Ku wave band magnetic coupling waveguide coaxial converting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510845875.6A CN105449330A (en) | 2015-11-26 | 2015-11-26 | Ku wave band magnetic coupling waveguide coaxial converting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN105449330A true CN105449330A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510845875.6A Pending CN105449330A (en) | 2015-11-26 | 2015-11-26 | Ku wave band magnetic coupling waveguide coaxial converting circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| CN109786921A (en) * | 2018-12-11 | 2019-05-21 | 北京铭安博运科技有限公司 | A kind of coaxial coupling device of microwave waveguide |
| CN109802217A (en) * | 2018-12-11 | 2019-05-24 | 北京铭安博运科技有限公司 | A kind of microwave dielectric resonator coaxially coupled |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08186410A (en) * | 1994-12-30 | 1996-07-16 | Nec Corp | Coaxial waveguide converter |
| CN102509832A (en) * | 2011-10-13 | 2012-06-20 | 中国兵器工业第二〇六研究所 | Axial broadband waveguide coaxial converter |
| CN202855880U (en) * | 2012-09-17 | 2013-04-03 | 西安天伟电子***工程有限公司 | Narrow edge magnetic field coupled waveguide coaxial converter |
| CN203326076U (en) * | 2012-06-21 | 2013-12-04 | 古野电气株式会社 | Coaxial waveguide tube converter |
-
2015
- 2015-11-26 CN CN201510845875.6A patent/CN105449330A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08186410A (en) * | 1994-12-30 | 1996-07-16 | Nec Corp | Coaxial waveguide converter |
| CN102509832A (en) * | 2011-10-13 | 2012-06-20 | 中国兵器工业第二〇六研究所 | Axial broadband waveguide coaxial converter |
| CN203326076U (en) * | 2012-06-21 | 2013-12-04 | 古野电气株式会社 | Coaxial waveguide tube converter |
| CN202855880U (en) * | 2012-09-17 | 2013-04-03 | 西安天伟电子***工程有限公司 | Narrow edge magnetic field coupled waveguide coaxial converter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| CN109786921A (en) * | 2018-12-11 | 2019-05-21 | 北京铭安博运科技有限公司 | A kind of coaxial coupling device of microwave waveguide |
| CN109802217A (en) * | 2018-12-11 | 2019-05-24 | 北京铭安博运科技有限公司 | A kind of microwave dielectric resonator coaxially coupled |
| CN109802217B (en) * | 2018-12-11 | 2022-01-18 | 北京铭安博运科技有限公司 | Coaxial coupling microwave medium resonant cavity |
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Application publication date: 20160330 |