CN201369378Y - Narrow-band FSS filter - Google Patents
Narrow-band FSS filter Download PDFInfo
- Publication number
- CN201369378Y CN201369378Y CNU2008202238052U CN200820223805U CN201369378Y CN 201369378 Y CN201369378 Y CN 201369378Y CN U2008202238052 U CNU2008202238052 U CN U2008202238052U CN 200820223805 U CN200820223805 U CN 200820223805U CN 201369378 Y CN201369378 Y CN 201369378Y
- Authority
- CN
- China
- Prior art keywords
- waveguide
- narrow
- metallic membrane
- filter
- coupling
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model discloses a narrow-band FSS filter which comprises a waveguide, a resonant metal diaphragm and a coupled metal diaphragm. The resonant metal diaphragm and the coupled metal diaphragm are vertical to the longitudinal direction of the waveguide, and simultaneously, connected with the upper, the lower, the left and the right surfaces of the waveguide; and the narrow-band FSS filter is characterized in that the resonant metal diaphragm and the coupled metal diaphragm are staggered along the longitudinal direction of the filter. The metal diaphragms are provided with coupling holes which are connected with the inner wall of the waveguide only in one direction of the cross section of the waveguide. The narrow-band FSS filter can meet the design requirements of low passband insertion loss, high rejection outside the passband and compact appearance within quite a narrow scope of the band width, is characterized in flexible design, simple structure and convenient processing, and is mainly applied to electronic systems of all microwave regions, in particular to radar, antenna and feeder system, missile guidance, communication and other military fields as well as the civil field.
Description
Technical field
The utility model relates to a kind of waveguide filter, specifically, relates to a kind of narrowband FSS filter.
Background technology
2006, people such as Rosa-Maria Barrio-Garrido reported a kind of compact waveguide filter [IEEE MTT-S International Microwave SymposiumDigest, June 2006, pp 250-253].This filter is formed by several metal resonant iris serial connections.The transmission response of filter is controlled by the position and the size of the coupling aperture on the metallic membrane on the resonant cavity cross section.Because this metallic membrane resonant cavity is more intense with the coupling between the waveguide that is connected, this structure only is suitable for broadband filter, is difficult to make relative bandwidth and is lower than 10% narrow band filter.
The utility model content
The purpose of this utility model provides a kind of narrowband FSS filter, increases the outer inhibition of band, improves performance, simplifies the course of processing, reduces difficulty of processing, cuts down finished cost.
To achieve these goals, the technical solution adopted in the utility model is:
Narrowband FSS filter comprises waveguide, resonance metallic membrane and coupling metallic membrane, it is characterized in that, described resonance metallic membrane and coupling metallic membrane vertically are arranged alternately along waveguide, wherein, the coupling metallic membrane is provided with narrow coupling aperture, and the resonance metallic membrane is provided with wide coupling aperture.
The width of described narrow coupling aperture is less than its 0.1mm highly at least.
The width of described wide coupling aperture is greater than its 0.1mm highly at least.
Connection waveguide between described adjacent coupled metallic membrane and the resonance metallic membrane in length longitudinally at least than 1/3rd also little 0.1mm of duct width.
Described narrow coupling aperture is a rectangle.
Described wide coupling aperture is a rectangle.
The two sides, the left and right sides of described wide coupling aperture may extend into waveguide left and right sides sidewall, makes the width of wide coupling aperture equal the waveguide cross-section width.
The bottom surface of described narrow coupling aperture may extend to the waveguide lower wall, makes this coupling aperture height equal waveguide inner chamber height.
The difference of the utility model and prior art maximum is that the resonance metal film in the waveguide cavity is arranged alternately with the coupling metallic membrane.The resonance metallic membrane is " recessed " type diaphragm, and the wide coupling aperture on it is only above that along linking to each other with the broadside inwall of waveguide.At this moment, the lower edge of wide coupling aperture and the distance of guide floor are a transformable parameter, and this makes that with regard to for the design of whole filter has increased a parameter design is more flexible.Simultaneously, in waveguide, between each resonance sheet metal the coupling metallic membrane is set.Be equipped with narrow coupling aperture above the coupling metallic membrane.The upper edge of all wide coupling apertures and narrow coupling aperture links to each other with the broadside inwall of waveguide.The height of narrow coupling aperture is greater than its width.For guaranteeing performance of the present utility model, be connected waveguide in that length should be less than 1/2nd of duct width longitudinally between resonance metallic membrane and the coupling metallic membrane.
The utlity model has following characteristics:
One. resonant cavity can reduce by the width that dwindles narrow coupling aperture with the degree of coupling in the external world in the utility model, thereby constitutes narrow band filter, obtains good narrow-band filtering characteristic, and the common direct-coupled cavity filter of the outer rejection ratio of band is better.
Two. compare with common direct-coupled cavity filter, the utility model is obtaining under the high performance prerequisite owing to adopted the FSS diaphragm, and overall dimensions are compact more, help the miniaturization Design of microwave circuit system.
Three. compare with common direct-coupled cavity filter, under the very narrow situation of relative bandwidth, require the width of the narrow coupling aperture on the coupling metallic membrane in the filter very little.This filter adds man-hour by milling, requires to adopt very thin milling cutter.The utility model has reduced the height of coupling aperture, does not need to be machined to the rectangular waveguide bottom during processing coupling aperture, can reduce the mismachining tolerance that the milling cutter bending brings, and guarantees machining accuracy better.
Four. increased the number of design parameter, made design more flexible.
The utility model can be widely used in the electronic system of each microwave band, particularly military affairs and civil areas such as radar, antenna-feedback system, missile guidance, communication.
Description of drawings
Fig. 1 is the structural representation of the utility model-embodiment one.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
Fig. 3 is the structural representation of the utility model-embodiment two.
Fig. 4 is that the A-A of Fig. 2 is to structural representation.
Fig. 5 is the structural representation of resonance sheet metal among Fig. 1.
Fig. 6 is the structural representation of coupling sheet metal among Fig. 1.
Fig. 7 is the structural representation of resonance sheet metal among Fig. 3.
Fig. 8 is the structural representation of coupling sheet metal among Fig. 3.
The corresponding title of label in the accompanying drawing: 1-rectangular waveguide, 2-resonance metallic membrane, the 3-metallic membrane that is coupled, the narrow coupling aperture of 4-, the wide coupling aperture of 5-.
Embodiment
Embodiment one
As depicted in figs. 1 and 2, narrowband FSS filter, comprise waveguide 1, resonance metallic membrane 2 and coupling metallic membrane 3, wherein, resonance metallic membrane 2 and coupling metallic membrane 3 are arranged alternately in waveguide 1 chamber, and link to each other with the inwall of four faces up and down of waveguide 1, the connection waveguide between resonance metallic membrane 2 and the coupling metallic membrane 3 in length longitudinally less than 1/3rd of duct width.Resonance metallic membrane 2 is provided with the wide coupling aperture 5 that only is connected with the waveguide inwall on a direction of waveguide 1 cross section as described in Figure 5, makes resonance metallic membrane 2 form the metallic membrane of a spill, and the width of wide coupling aperture is greater than its height; The metallic membrane 3 that is coupled as described in Figure 6 is provided with the narrow coupling aperture 4 that only is connected with the waveguide inwall on a direction of waveguide 1 cross section, make coupling metallic membrane 3 also form a concave metal diaphragm, and the width of this narrow coupling aperture is less than its height.
Embodiment two
As Fig. 3 and Fig. 4, embodiment two is that with the difference of embodiment one broadside of the wide coupling aperture 5 on the resonance metallic membrane 2 of embodiment two overlaps with the left and right sides sidewall of waveguide 1, makes these wide coupling aperture 5 width equal the rectangular waveguide cross-sectional width, as Fig. 7.The bottom surface of the narrow coupling aperture 4 on the coupling sheet metal 3 overlaps with waveguide 1 lower edge, makes the height of this narrow coupling aperture equal waveguide inner chamber height, as Fig. 8.
In the utility model, the narrow coupling aperture 4 on resonance metallic membrane 2 and the coupling metallic membrane 3 and the size of wide coupling aperture 5 can change according to actual needs.By the foregoing description, as can be seen, the utility model can satisfy in the scope of bandwidth relative narrower that Insertion Loss in the passband is low, suppress the designing requirement of height and compact appearance outside the passband.The utlity model has flexible design, characteristics simple in structure, easy to process, be mainly used in the electronic system of various microwave bands, particularly military field and civil areas such as radar, antenna-feedback system, missile guidance, communication.
Claims (6)
1, narrowband FSS filter, comprise waveguide (1), resonance metallic membrane (2) and coupling metallic membrane (3), it is characterized in that, described resonance metallic membrane (2) and coupling metallic membrane (3) vertically are arranged alternately along waveguide (1), wherein, resonance metallic membrane (2) is provided with wide coupling aperture (5), and coupling metallic membrane (3) is provided with narrow coupling aperture (4).
2, narrowband FSS filter according to claim 1 is characterized in that, the width of described narrow coupling aperture (4) is less than its 0.1mm highly at least.
3, narrowband FSS filter according to claim 1 is characterized in that, the width of described wide coupling aperture (5) is greater than its 0.1mm highly at least.
4, according to claims 1 or 2 or 3 described narrowband FSS filters, it is characterized in that, the connection waveguide between described adjacent coupled metallic membrane (3) and the resonance metallic membrane (2) in length longitudinally at least than 1/2nd also little 0.1mm of duct width.
5. according to claims 1 described narrowband FSS filter, it is characterized in that described narrow coupling aperture (4) is a rectangle.
6. according to claims 1 described narrowband FSS filter, it is characterized in that described wide coupling aperture (5) is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202238052U CN201369378Y (en) | 2008-12-26 | 2008-12-26 | Narrow-band FSS filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202238052U CN201369378Y (en) | 2008-12-26 | 2008-12-26 | Narrow-band FSS filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369378Y true CN201369378Y (en) | 2009-12-23 |
Family
ID=41488269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202238052U Expired - Fee Related CN201369378Y (en) | 2008-12-26 | 2008-12-26 | Narrow-band FSS filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369378Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130369A (en) * | 2011-04-06 | 2011-07-20 | 成都赛纳赛德科技有限公司 | Compact type comb-shaped filter |
| CN106099282A (en) * | 2015-04-30 | 2016-11-09 | 凯瑟雷恩工厂两合公司 | For transmitting the high frequency filter with dielectric substrate of TM pattern in transverse direction |
| 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 |
| CN110247141A (en) * | 2019-06-12 | 2019-09-17 | 南京邮电大学 | Millimeter waveguide triplexer |
| CN110336101A (en) * | 2019-06-28 | 2019-10-15 | 电子科技大学 | A kind of Wide stop bands inductance diaphragm, capacitive window interlock loading waveguide bandpass filter |
-
2008
- 2008-12-26 CN CNU2008202238052U patent/CN201369378Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130369A (en) * | 2011-04-06 | 2011-07-20 | 成都赛纳赛德科技有限公司 | Compact type comb-shaped filter |
| CN106099282A (en) * | 2015-04-30 | 2016-11-09 | 凯瑟雷恩工厂两合公司 | For transmitting the high frequency filter with dielectric substrate of TM pattern in transverse direction |
| CN106099282B (en) * | 2015-04-30 | 2020-06-05 | 凯瑟雷恩欧洲股份公司 | High-frequency filter with dielectric matrix for transmitting TM modes in transverse direction |
| 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 |
| CN110247141A (en) * | 2019-06-12 | 2019-09-17 | 南京邮电大学 | Millimeter waveguide triplexer |
| CN110336101A (en) * | 2019-06-28 | 2019-10-15 | 电子科技大学 | A kind of Wide stop bands inductance diaphragm, capacitive window interlock loading waveguide bandpass filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201369378Y (en) | Narrow-band FSS filter | |
| CN109983616B (en) | Filter and communication equipment | |
| EP2034551A1 (en) | Bandpass filter, high-frequency module using the same, and radio communication device using them | |
| CN102354790A (en) | Highly miniaturized substrate integrated waveguide resonator | |
| EP4084213A1 (en) | Band-stop filter and radio frequency device | |
| CN103259068B (en) | Millimeter wave band-pass filter of substrate integrated waveguide structure and improvement method thereof | |
| CN209766609U (en) | Symmetrical zero structure of dielectric waveguide filter and filter thereof | |
| CN216773483U (en) | Resonator and cavity filter | |
| CN210379367U (en) | Ceramic dielectric filter | |
| CN211879571U (en) | Coupling structure of ceramic waveguide filter | |
| CN101217209B (en) | A substrate integration waveguide multi-mode filter based on square high order cavity | |
| CN109193087A (en) | A kind of novel four function filter-divider of high-performance dual-passband | |
| CN202259650U (en) | Highly miniaturized substrate integrated waveguide resonator | |
| CN101604779A (en) | Narrowband FSS filter | |
| CN107591597A (en) | Based on the satellite communication of split-ring resonator KU band filters | |
| CN201178126Y (en) | A substrate integration waveguide multi-mode filter based on square high order cavity | |
| CN114865255B (en) | Half-mode substrate integrated waveguide filter | |
| CN201204242Y (en) | Compact rectangular waveguide filter | |
| CN104167578B (en) | Substrate integration wave-guide band pass filter | |
| CN203445217U (en) | Satellite data transmission waveguide combiner | |
| CN211507845U (en) | Waveguide cavity filter | |
| CN209993709U (en) | High-suppression low-insertion-loss E-band duplexer | |
| EP1032070B1 (en) | Dielectric filter, dielectric duplexer, and communication apparatus | |
| CN103545584A (en) | Broadband band-pass filter low in insertion loss | |
| CN201466182U (en) | Compact self-resonant diaphragm filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20131226 |