CN2337681Y - Rectangular hollow combined waveguide filter - Google Patents
Rectangular hollow combined waveguide filter Download PDFInfo
- Publication number
- CN2337681Y CN2337681Y CN 98227866 CN98227866U CN2337681Y CN 2337681 Y CN2337681 Y CN 2337681Y CN 98227866 CN98227866 CN 98227866 CN 98227866 U CN98227866 U CN 98227866U CN 2337681 Y CN2337681 Y CN 2337681Y
- Authority
- CN
- China
- Prior art keywords
- resonant cavity
- coupling
- coupling iris
- unit
- end plate
- 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 - Lifetime
Links
Images
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model relates to a rectangular cavity combined filter, which comprises an end plate, an Input and output connector, opposite hollow rectangular frame-shaped cavity resonator units, a conductor arranged in the cavity resonator unit, a resonance frequency adjusting screw, and a coupling iris clamped on corresponding hollow point of the adjacent resonator unit. A coupling groove is arranged on the coupling iris. Each cavity resonator units and the coupling iris are fixedly connected by fasteners. The utility model has the advantages of delicate structure, compact structure, convenient adjustment, small insertion loss, high selectivity, small size, wide applicability, simple manufacturing technique, and low cost.
Description
The utility model relates to a kind of microwave filter, particularly a kind of rectangular cavity composite type filter.
In radio systems such as radar, communication, navigation, remote sensing, high selectivity, low loss filter are a kind of essential critical components.In the following frequency range of three gigahertzs, generally all adopt TEM film multicavity filter.Existing two kinds of multicavity filter versions commonly used: the multicavity filter of distributed couplings and the adjustable multicavity filter of centralized coupling.The former is a plurality of inner wires of broach shape ground insertion in the aluminium section bar chamber that whole section drawing forms generally, be formed centrally a plurality of rectangular cavities in inner wire being, screw in the resonance frequency adjustment screw relative from the cavity opposite side with inner wire, the filter two ends have end plate, and input and output connector is connected with filter two ends cavity respectively.This Filter Design is ripe with manufacturing, it is also less to insert loss, the problem that exists is the Fixed Design that is coupled as between the adjacent resonators, passband width is non-adjustable, be unfavorable for the design and the manufacturing of many kinds series of products, and when passband width required constriction, the distributed couplings district extended thereupon, increased the volume of filter.The latter mostly is and processes a plurality of cylindrical cavities (or rectangular cavity) in metal derby, also has inner wire and resonance frequency adjustment screw, has intercommunicating pore between the adjacent resonators, in the intercommunicating pore place, regulates the coupling amount between the resonant cavity by the extrapolation screw rod.The major advantage of this filter is that after product was made, performances such as ripple, input vswr fully be adjusted to and reach satisfactory result in can and being with passband width.The problem that exists is that screw device is relatively more clumsy, and the insertion loss is also bigger, and under the more situation of resonant cavity requirement, difficulty of processing increases, and technological debugging work is quite loaded down with trivial details, complicated, time-consuming.
The purpose of this utility model is, overcomes the shortcoming of above-mentioned two kinds of multicavity filters, and a kind of low-loss, high selectivity, debugging is convenient, volume is little rectangular cavity composite type filter are provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of rectangular cavity composite type filter, have end plate, input and output connector, resonant cavity inner wire, resonance frequency adjustment screw, it is characterized in that the resonant cavity unit is the blank rectangle frame shape in opposite, corresponding blank place, adjacent resonators unit accompanies coupling iris, have the coupling line of rabbet joint on the coupling iris, each resonant cavity unit and coupling iris are fixedly connected with securing member.
The utility model filter can be formed by the resonant cavity unit combination of any number of stages, and structure is dexterous compact; For the requirement of different choice characteristic and passband width, as long as the diaphragm that corresponding increase and decrease unit number and replacing have corresponding coupling line of rabbet joint size, debugging is convenient, and volume is little, and applicability is wide; Because coupling iris is thinner, its thickness is no more than 0.5mm, has to insert the advantage that loss is little, selectivity is high.The resonant cavity unit can adopt aluminium alloy to stretch, cutting forms one by one, and perhaps aluminothermy die casting is made and formed, coupling iris and on the coupling line of rabbet joint all can punching out be shaped, manufacturing technology is simple, and is with low cost, is suitable for producing in batches.
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.
Fig. 1 is the utility model embodiment overall structure schematic diagram (partly cuing open).
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the A-A cut-away view of Fig. 2.
Fig. 4 is the trip bolt schematic diagram.
As depicted in figs. 1 and 2, the embodiment filter is combined by three rectangular cavity unit 1.The filter two ends are end plate 3, input and output connector 5 is installed on the end plate (perhaps filter two ends resonant cavity sidewall) 3, resonant cavity unit 1 is the blank rectangle frame shape in opposite, corresponding blank place, adjacent resonators unit accompanies coupling iris 7, have the coupling line of rabbet joint 71 on the coupling iris 7, each resonant cavity unit and coupling iris are fixedly connected with securing member-screw 8.6 is the resonant cavity inner wire among the figure, and 2 is the resonance frequency adjustment screw.
In order to make the utility model filter input and output excitation behavior better, further feature is, as depicted in figs. 1 and 2, has external screw thread on the connector 5, be rotary with locking nut 4, have corresponding screw on the end plate (perhaps end resonant cavity sidewall) 3, connector 5 is connected with end plate (perhaps end resonant cavity sidewall) 3 spirals, by the distance of adjustable diameter and screw adjusting connector and end resonant cavity inner wire, can realize the strong and weak fine setting of input and output excitation easily.
The utlity model has easier fixed connection structure in order to make, further feature is, as shown in Figure 3 and Figure 4, the resonant cavity unit sidewall has screw hole 9, with the grafting screw 8 that is step-like, afterbody has screw end plate 3, each resonant cavity unit 1 and folded coupling iris 7 thereof is fastenedly connected successively.This is a kind of package assembly of stealth, has advantages such as structure is firm, mounting or dismounting are easy fast, good looking appearance.
Claims (3)
1, rectangular cavity composite type filter, have end plate, input and output connector, resonant cavity inner wire, resonance frequency adjustment screw, it is characterized in that the resonant cavity unit is the blank rectangle frame shape in opposite, corresponding blank place, adjacent resonators unit accompanies coupling iris, have the coupling line of rabbet joint on the coupling iris, each resonant cavity unit and coupling iris are fixedly connected with securing member.
2, rectangular cavity composite type filter according to claim 1 is characterized in that input and output connector is connected with end plate or end resonant cavity sidewall spiral, is rotary with locking nut on the connector.
3, rectangular cavity composite type filter according to claim 1 and 2 is characterized in that the resonant cavity unit sidewall has screw hole, with the grafting screw that is step-like, afterbody has screw end plate, each resonant cavity unit and folded coupling iris thereof is fastenedly connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227866 CN2337681Y (en) | 1998-09-17 | 1998-09-17 | Rectangular hollow combined waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227866 CN2337681Y (en) | 1998-09-17 | 1998-09-17 | Rectangular hollow combined waveguide filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337681Y true CN2337681Y (en) | 1999-09-08 |
Family
ID=33978102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227866 Expired - Lifetime CN2337681Y (en) | 1998-09-17 | 1998-09-17 | Rectangular hollow combined waveguide filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337681Y (en) |
Cited By (4)
| 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 |
| CN103117429A (en) * | 2011-11-17 | 2013-05-22 | 成都赛纳赛德科技有限公司 | Miniaturization comb filter |
| CN104143675A (en) * | 2013-05-09 | 2014-11-12 | 绵阳市耐特电子实业有限责任公司 | Cross coupling band-pass filter and design method of cross coupling band-pass filter |
| CN110190368A (en) * | 2019-05-23 | 2019-08-30 | 井冈山大学 | A kind of three frequency filter of small gauge coaxial chamber |
-
1998
- 1998-09-17 CN CN 98227866 patent/CN2337681Y/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| CN103117429A (en) * | 2011-11-17 | 2013-05-22 | 成都赛纳赛德科技有限公司 | Miniaturization comb filter |
| CN104143675A (en) * | 2013-05-09 | 2014-11-12 | 绵阳市耐特电子实业有限责任公司 | Cross coupling band-pass filter and design method of cross coupling band-pass filter |
| CN104143675B (en) * | 2013-05-09 | 2018-06-19 | 绵阳市耐特电子实业有限责任公司 | Cross-linked bandpass filter and its design method |
| CN110190368A (en) * | 2019-05-23 | 2019-08-30 | 井冈山大学 | A kind of three frequency filter of small gauge coaxial chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5047739A (en) | Transmission line resonator | |
| Queudet et al. | Integration of pass-band filters in patch antennas. | |
| US6549102B2 (en) | Quasi dual-mode resonator | |
| US5352996A (en) | Interdigital bandpass filter | |
| JPS62122303A (en) | Evanescent mode microwave band-pass filter | |
| US20080042783A1 (en) | Filter | |
| US4020428A (en) | Stripline interdigital band-pass filter | |
| CN2337681Y (en) | Rectangular hollow combined waveguide filter | |
| CN1855614A (en) | Block filter | |
| CN105229847B (en) | Coupled arrangement between cavity filter resonator | |
| EP0445587A2 (en) | Modular resonant cavity, modular dielectric notch resonator and modular dielectric notch filter | |
| JP3531570B2 (en) | Resonator, filter, duplexer, communication equipment | |
| US6664872B2 (en) | Iris-less combline filter with capacitive coupling elements | |
| EP0533394A2 (en) | Filter comprising a resonator rod mounted on a base plate | |
| WO2002054527A2 (en) | A filter including coaxial cavity resonators | |
| US4365221A (en) | Helical resonator filter with dielectric apertures | |
| JPS6150401A (en) | Dielectric filter | |
| JPH01260901A (en) | Dielectric filter | |
| JP2639874B2 (en) | Variable frequency filter | |
| CN2684390Y (en) | Low loss high selectivity high power multi-cavity filter | |
| CN214477826U (en) | Miniaturized low frequency cavity filter | |
| JPS6390201A (en) | Dielectric filter | |
| CN209232923U (en) | Filter and communication system | |
| JP2572344B2 (en) | Dielectric resonator and band-pass filter using this resonator | |
| JPS6324647Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: ZHUANG KUNJIE TO: SHENZHEN CITY CHINAREN COMMUNICATION CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Shenzhen City, Futian District CaiTian road 518026 Bank of China Tower, B block 16 layer Patentee after: Shenzhen China Communications Co., Ltd. Address before: 362000 Fujian city in Quanzhou Province, Xinhua Road, Sunwu industrial building Leike company Patentee before: Zhuang Kunjie |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |