CN104319446A - Millimeter wave rectangular waveguide filter of built-in transverse superconductivity membrane - Google Patents
Millimeter wave rectangular waveguide filter of built-in transverse superconductivity membrane Download PDFInfo
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- CN104319446A CN104319446A CN201410563825.4A CN201410563825A CN104319446A CN 104319446 A CN104319446 A CN 104319446A CN 201410563825 A CN201410563825 A CN 201410563825A CN 104319446 A CN104319446 A CN 104319446A
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Abstract
The invention discloses a millimeter wave rectangular waveguide filter of a built-in transverse superconductivity membrane, and the millimeter wave rectangular waveguide filter comprises a rectangular waveguide in which a plurality of superconductivity membranes are inserted and fixed in the different planes vertical to the rectangular waveguide energy transfer direction, and the adjacent superconductivity membranes are formed into a millimeter wave resonator, and a coupler is arranged between the adjacent millimeter wave resonators. The beneficial effect of the millimeter wave rectangular waveguide filter lies in that the low surface resistance of superconducting materials is fully utilized, the designed filter has the low insertion loss and the high rectangle coefficient. In comparison with the traditional metallic waveguide cavity, the insertion loss of the filter can be reduced by the superconductivity membrane grown on the inner wall of the rectangular waveguide, thereby providing technical support to design a multi-level filter, improving the out-of-band rejection of the filter and finally greatly improving the performance of the millimeter wave filter. A direct coupling structure is formed by removing the partial inserted superconductivity membrane and the substrate of the superconductivity membrane is used as a mechanical structure support so as to improve performance consistency of a real object and a simulation architecture and simplify a assembling process.
Description
Technical field
The invention belongs to millimeter waveguide technical field of filtering, relate to millimeter waveguide filter, particularly a kind of Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm.
Background technology
Millimeter wave filter has a wide range of applications in the millimeter-wave systems such as millimetre-wave attenuator, satellite communication, navigation, guidance, electronic countermeasures and electronic measuring instrument system, and the quality of its performance often affects the quality of whole millimeter-wave systems.The filter of planar structure is formed primarily of planar transmission lines such as microstrip line, strip line or co-planar waveguides.But this kind of filter is easy to integrated insertion loss greatly, almost will not adopt.What grew up in recent years mainly contains dielectric filter and E face insertion waveguide filter.Relative to conventional filter, dielectric filter volume reduces greatly, but in band, Insertion Loss is larger; It is low that Insertion Loss in waveguide filter band is inserted in E face, but the outer degree of suppression of distally is bad, shows the Out-of-band rejection to high band especially.
Along with developing rapidly of modern mobile communication technology, frequency spectrum resource is more and more in short supply, makes the requirement of the front end receiver equipment to wireless communication system more and more higher.In order to reduce the interference between communication system, require that the filter of receiving front-end has higher squareness factor (namely band edge is more precipitous) and lower insertion loss.
Summary of the invention
The object of the invention is the Insertion Loss in order to reduce filter and improve squareness factor, making full use of the zero resistance nature of superconduction diaphragm, proposing a kind of Millimeter Wave Rectangular Wave-guide filter of laterally inserted superconduction diaphragm.
Technical scheme of the present invention is: the Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm, comprise rectangular waveguide, it is characterized in that, multi-disc superconduction diaphragm is fixed with perpendicular to the Different Plane in rectangular waveguide energy transferring direction is inserted in described rectangular waveguide, adjacent superconduction diaphragm forms millimeter wave resonant cavity, is provided with coupling between adjacent resonators.
Further, above-mentioned being arranged at is coupled as direct-coupling structure between resonant cavity.
Further, remove part superconducting thin film in coupling place of superconduction diaphragm and form opening, described opening is as the direct-coupling structure between resonant cavity.
Further, the inwall growth of described rectangular waveguide has superconducting film.
Beneficial effect of the present invention: the Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm of the present invention makes full use of the extremely low sheet resistance of superconductor, and the filter designed has filter with low insertion loss and high squareness factor concurrently.Compared with the wave-guide cavity wave formed with traditional metal, cavity inner wall growth of the present invention has superconducting film, further reduce the insertion loss of filter, technical support is provided for designing more multistage filter, improve the Out-of-band rejection of filter, finally make the performance of millimeter wave filter greatly improve.By getting on except part superconducting thin film forms direct-coupling structure at the superconduction diaphragm inserted, utilizing the substrate of superconduction diaphragm to support as mechanical structure, improve consistency that is in kind and simulation architecture performance, simplifying linkage editor.
Accompanying drawing explanation
Fig. 1 is the top plan view structural representation of Millimeter Wave Rectangular Wave-guide filter one embodiment of built-in transverse superconduction diaphragm of the present invention;
Fig. 2 is the perspective view of filter shown in Fig. 1.
Embodiment
Embodiments of the invention design according to principle of the present invention, is further elaborated principle of the present invention below in conjunction with accompanying drawing and specific embodiment.
Be specific embodiments of the invention as shown in Figures 1 and 2:
In the Millimeter Wave Rectangular Wave-guide filter of the built-in transverse superconduction diaphragm of the present embodiment, comprise rectangular waveguide 1, multi-disc superconduction diaphragm 2 is fixed with perpendicular in the Different Plane in rectangular waveguide energy transferring direction by the mode inserted in described rectangular waveguide 1, adjacent superconduction diaphragm forms millimeter wave resonant cavity, is provided with coupling 3 between adjacent resonators.Specifically be provided with 4 superconduction diaphragms in the present embodiment, form 3 resonant cavitys.In a particular application, can according to the difference of engineering problem to the parameter request such as filter centre frequency, squareness factor, adjustment uses corresponding superconduction diaphragm quantity, the position of adjustment superconduction diaphragm, the coupling coefficient of adjustment coupling and adjusts accordingly rectangular waveguide size.
In order to more be adapted to engineer applied, simplified design structure, the present embodiment preferably have employed direct-coupling structure as the coupling between resonant cavity.And be designed specifically to following version: remove part superconducting thin film in coupling place of superconduction diaphragm and form opening.
Coupling coefficient between the number resonant cavity of adjustment resonant cavity is to obtain different design objectives, and described design objective refers to the parameters such as the bandwidth of operation of filter, ripple coefficient, insertion loss and Out-of-band rejection.Coupling coefficient between the number resonant cavity of wherein resonant cavity can be obtained by the size changing the size of superconduction diaphragm, quantity and rectangular waveguide.Prior art theoretical category is belonged to owing to calculating rectangular waveguide and superconducting film chip size according to the design objective of filter and calculating the position of superconduction diaphragm in rectangular waveguide, common practise is belonged to for those of ordinary skill in the art, therefore does not launch to describe in detail at this.Thus the technology that this programme relates to this aspect realizes being clear and complete.
In order to reduce the insertion loss of device further, improve device performance, the present embodiment described rectangular waveguide inwall growth of superconductive film (superconducting thick-film) or adopt inwall growth to have the rectangular waveguide of superconducting film.Due to superconducting thick-film growth technique not innovative point of the present invention, belong to prior art category simultaneously, therefore do not describe in detail at this.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from essence of the present invention according to these technology enlightenment disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (4)
1. the Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm, comprise rectangular waveguide, it is characterized in that, multi-disc superconduction diaphragm is fixed with perpendicular to the Different Plane in rectangular waveguide energy transferring direction is inserted in described rectangular waveguide, adjacent superconduction diaphragm forms millimeter wave resonant cavity, is provided with coupling between adjacent resonators.
2. the Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm according to claim 1, is characterized in that, is arranged to be coupled as direct-coupling structure between resonant cavity.
3. the Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm according to claim 2, is characterized in that, remove part superconducting thin film in coupling place of superconduction diaphragm and form opening, described opening is as the direct-coupling structure between resonant cavity.
4. the Millimeter Wave Rectangular Wave-guide filter of the built-in transverse superconduction diaphragm according to any one claim of claim 1-3, is characterized in that, the inwall growth of described rectangular waveguide has superconducting film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410563825.4A CN104319446A (en) | 2014-10-21 | 2014-10-21 | Millimeter wave rectangular waveguide filter of built-in transverse superconductivity membrane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410563825.4A CN104319446A (en) | 2014-10-21 | 2014-10-21 | Millimeter wave rectangular waveguide filter of built-in transverse superconductivity membrane |
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| CN104319446A true CN104319446A (en) | 2015-01-28 |
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| CN201410563825.4A Pending CN104319446A (en) | 2014-10-21 | 2014-10-21 | Millimeter wave rectangular waveguide filter of built-in transverse superconductivity membrane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732389A (en) * | 2017-10-13 | 2018-02-23 | 成都美数科技有限公司 | A kind of mechanical adjustable wave filter |
| CN107732388A (en) * | 2017-10-13 | 2018-02-23 | 成都美数科技有限公司 | A kind of wave filter of quick adjustment filter effect |
| CN110459844A (en) * | 2019-08-30 | 2019-11-15 | 成都天奥电子股份有限公司 | A kind of adjustable waveguide filter of face H medium |
| CN113224481A (en) * | 2021-04-30 | 2021-08-06 | 电子科技大学 | Circularly symmetric TE0nMode filter |
| CN113782930A (en) * | 2021-09-16 | 2021-12-10 | 江苏贝孚德通讯科技股份有限公司 | Rectangular waveguide filter with compact structure |
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| US6961597B1 (en) * | 2003-07-01 | 2005-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Strips for imparting low nonlinearity to high temperature superconductor microwave filters |
| CN204088535U (en) * | 2014-10-21 | 2015-01-07 | 成都顺为超导科技股份有限公司 | A kind of Millimeter Wave Rectangular Wave-guide filter of built-in transverse superconduction diaphragm |
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2014
- 2014-10-21 CN CN201410563825.4A patent/CN104319446A/en active Pending
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| CN1348618A (en) * | 1998-09-22 | 2002-05-08 | 伊利诺伊超导股份有限公司 | Dual operation mode filter using superconducting resonators |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732389A (en) * | 2017-10-13 | 2018-02-23 | 成都美数科技有限公司 | A kind of mechanical adjustable wave filter |
| CN107732388A (en) * | 2017-10-13 | 2018-02-23 | 成都美数科技有限公司 | A kind of wave filter of quick adjustment filter effect |
| CN110459844A (en) * | 2019-08-30 | 2019-11-15 | 成都天奥电子股份有限公司 | A kind of adjustable waveguide filter of face H medium |
| CN110459844B (en) * | 2019-08-30 | 2024-07-02 | 成都天奥电子股份有限公司 | H-plane medium adjustable waveguide filter |
| CN113224481A (en) * | 2021-04-30 | 2021-08-06 | 电子科技大学 | Circularly symmetric TE0nMode filter |
| CN113782930A (en) * | 2021-09-16 | 2021-12-10 | 江苏贝孚德通讯科技股份有限公司 | Rectangular waveguide filter with compact structure |
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