CN204732505U - For the capacitive coupling structure of metallic cavity filter product - Google Patents
For the capacitive coupling structure of metallic cavity filter product Download PDFInfo
- Publication number
- CN204732505U CN204732505U CN201520351463.2U CN201520351463U CN204732505U CN 204732505 U CN204732505 U CN 204732505U CN 201520351463 U CN201520351463 U CN 201520351463U CN 204732505 U CN204732505 U CN 204732505U
- Authority
- CN
- China
- Prior art keywords
- medium
- capacitive coupling
- coupling structure
- cavity filter
- metallic cavity
- 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
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The utility model relates to a kind of capacitive coupling structure for metallic cavity filter product, U-shaped or the inverted U of this structure, comprise cross-brace medium and be arranged on the coupling piece at cross-brace medium two ends, each coupling piece offers the U-shaped hole passed for metal debugging screw.Compared with prior art, the utility model has the conforming problem solving and suppress when requiring harsh production.
Description
Technical field
The utility model relates to a kind of capacitive coupling structure, especially relates to a kind of capacitive coupling structure for metallic cavity filter product.
Background technology
Microwave refers to the signal between 300MHz (1MHz=1.0 × 10E6Hz) to 300GHz (1GHz=1.0 × 10E9Hz) frequency range in frequency.Microwave communication originates from the Radar Technology grown up in World War II, be widely used in telecommunications network all over the world at present, due to the transmission that its bandwidth, capacity are large, may be used for various telecommunication service, as phone, telegram, data, fax and color TV etc., its occupation rate in network erection is in accelerating the gesture of rising.Therefore, microwave communication research to developing national economy and satisfy social needs significant.
The most basic microwave telecommunication system between two microwave stations, sets up a microwave communication connect.Each microwave station structure mainly comprises three parts: digital modems, radio-frequency front-end and antenna.Wherein modulator-demodulator is used for subscriber signal to be modulated into radiofrequency signal (300KHz-300MHz); The modulated radiofrequency signal made is carried to microwave or millimeter wave frequency band and carried out being amplified to power by radio-frequency front-end is about 1w; And passive parabolic shape antenna is for transmitting and receiving these microwave signals.Duplexer is the key element in radio-frequency front-end, its function is to make the microwave signal of transmitting and receiving with minimum loss without passing through with influencing each other simultaneously, also will effectively suppress other noise signal on the impact of system, the quality of its electrical property will be directly connected to the signal transmission quality of whole microwave telecommunication system.Mostly adopt coaxial type duplexer in the microwave system of below 6GHz, more than 6GHz then more adopts waveguide type duplexer.
Cavity body filter has sound construction, frequency coverage is wide, and high side parasitic passband is comparatively far away, and consistency is good, volume is little, Q value is moderate, full temperature scope internal stability is reliable, easy input and output 50 ohms impedance match, standing wave is little is easy to cascade use, and in band, amplitude-frequency characteristic is smooth, the little Out-of-band rejection of insertion loss is high, flexible design such as easily to install at the advantage, therefore
Microwave Cavity Filter is transmitting terminal and the requisite device of receiving terminal in Modern Communication System, and it plays centrifugation to signal, allows useful signal is undamped as much as possible to be passed through, to unwanted signal as far as possible high attenuation suppress it to pass through.And along with the development of radio communication, the frequency band between signal is more and more narrow, mutually suppress to require more and more higher, this just has higher requirement to the index of filter, reliability and producible consistency.
Utility model content
The purpose of this utility model is exactly provide a kind of capacitive coupling structure for metallic cavity filter product to overcome defect that above-mentioned prior art exists, solves the conforming problem suppressed when requiring harsh production.
The purpose of this utility model can be achieved through the following technical solutions:
For a capacitive coupling structure for metallic cavity filter product, the U-shaped or inverted U of this structure, comprises cross-brace medium and is arranged on the coupling piece at cross-brace medium two ends, each coupling piece offers the U-shaped hole passed for metal debugging screw.
Described cross-brace medium is provided with the medium screw hole passed for medium screw.
Described medium screw hole is provided with one, arranges the center of cross-brace medium.
Described medium screw hole is provided with multiple, in laterally or longitudinally arranging.
Described cross-brace medium is provided with symmetrically arranged U-shaped groove.
Described metal debugging screw is provided with insulating sleeve.
This capacitive coupling structure is used for metallic cavity resonator.
Compared with prior art, the utility model has the following advantages:
1. the adjustable extent that is coupled is wide, suppresses higher filter.
2. debugging is simple, can avoid because capacitive coupling is non-adjustable, and the product defects caused in the rejection and waste caused and process of rework or scrap.
3. the production debugging time is shorter, more convenient.
4. performance is more stable, more reliable, consistency is good.
5. cost low, be easy to make.
Accompanying drawing explanation
Fig. 1 is capacitive coupling structure schematic front view of the present utility model;
Fig. 2 is capacitive coupling structure schematic top plan view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As depicted in figs. 1 and 2, a kind of capacitive coupling structure for metallic cavity filter product, U-shaped or the inverted U of this structure, comprise cross-brace medium and be arranged on the coupling piece 3 at cross-brace medium two ends, each coupling piece offers the U-shaped hole 2 passed for metal debugging screw, metal debugging screw on cover plate can regulate, to realize the object of variable coupling electric capacity in the U-shaped hole 2 of the coupling piece of both sides.
Described cross-brace medium is provided with the medium screw hole 1 passed for medium screw.Described medium screw hole 1 is provided with one, arranges the center of cross-brace medium.Described cross-brace medium is provided with symmetrically arranged U-shaped groove.
The capacitive coupling structure of metal filter product, the adjustable coupling screw in U-shaped hole 2 is avoided contacting coupling piece itself, can add an insulating sleeve under some condition on screw, avoids short circuit and increases power capacity.
Embodiment 2
Described medium screw hole 1 is provided with multiple, in laterally or longitudinally arranging.All the other are with embodiment 1.
Claims (6)
1. the capacitive coupling structure for metallic cavity filter product, it is characterized in that, U-shaped or the inverted U of this structure, comprises cross-brace medium and is arranged on the coupling piece at cross-brace medium two ends, each coupling piece offers the U-shaped hole passed for metal debugging screw.
2. a kind of capacitive coupling structure for metallic cavity filter product according to claim 1, is characterized in that, described cross-brace medium is provided with the medium screw hole passed for medium screw.
3. a kind of capacitive coupling structure for metallic cavity filter product according to claim 2, is characterized in that, described medium screw hole is provided with one, arranges the center of cross-brace medium.
4. a kind of capacitive coupling structure for metallic cavity filter product according to claim 2, is characterized in that, described medium screw hole is provided with multiple, in laterally or longitudinally arranging.
5. a kind of capacitive coupling structure for metallic cavity filter product according to claim 1 and 2, is characterized in that, described cross-brace medium is provided with symmetrically arranged U-shaped groove.
6. a kind of capacitive coupling structure for metallic cavity filter product according to claim 1, is characterized in that, described metal debugging screw is provided with insulating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351463.2U CN204732505U (en) | 2015-05-27 | 2015-05-27 | For the capacitive coupling structure of metallic cavity filter product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520351463.2U CN204732505U (en) | 2015-05-27 | 2015-05-27 | For the capacitive coupling structure of metallic cavity filter product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204732505U true CN204732505U (en) | 2015-10-28 |
Family
ID=54390834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520351463.2U Expired - Fee Related CN204732505U (en) | 2015-05-27 | 2015-05-27 | For the capacitive coupling structure of metallic cavity filter product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204732505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299562A (en) * | 2015-05-27 | 2017-01-04 | 凯镭思通讯设备（上海）有限公司 | A kind of capacitive coupling structure for metallic cavity wave filter product |
-
2015
- 2015-05-27 CN CN201520351463.2U patent/CN204732505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299562A (en) * | 2015-05-27 | 2017-01-04 | 凯镭思通讯设备（上海）有限公司 | A kind of capacitive coupling structure for metallic cavity wave filter product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104409808B (en) | Comb filter based on multimode resonator | |
| CN103811832B (en) | Filter, receiver, transmitter and transceiver | |
| CN103633400B (en) | A kind of micro-strip duplexer based on electromagnetism hybrid coupled | |
| CN104091982B (en) | A kind of ultra broadband band elimination filter loaded based on many step impedance resonator | |
| CN105720339A (en) | Dual-band adjustable band-pass filter | |
| CN202798692U (en) | Eight GHz fully outdoor internet protocol (IP) digital microwave unit and radio frequency unit thereof | |
| CN204732505U (en) | For the capacitive coupling structure of metallic cavity filter product | |
| CN104134836A (en) | Planar duplexer based on quarter-wavelength short circuit feeder | |
| CN106299562A (en) | A kind of capacitive coupling structure for metallic cavity wave filter product | |
| CN104681897A (en) | Input and output coupling structure for transverse magnetic (TM) mode dielectric filter | |
| CN203288723U (en) | Interdigital coupling diplexer | |
| CN203707286U (en) | Input output coupling structure for TM mode dielectric filter | |
| CN203883094U (en) | Micro-strip diplexer based on electromagnetic mixed coupling | |
| CN113131148A (en) | Communication device and filter thereof | |
| CN101471471B (en) | Coupling structure of waveguide antenna mouth metal plate | |
| CN101471473A (en) | Cross coupling structure of filter | |
| CN110518316A (en) | A kind of multifrequency band-pass filter based on single minor matters load multimode resonator | |
| CN205376725U (en) | Directional coupler | |
| CN205039788U (en) | A multichannel wave filter and digital microwave transmission equipment for digital microwave transmission equipment | |
| CN204696217U (en) | A kind of cavity No. 6 multiplexer | |
| CN203644909U (en) | Whole-cavity-type quadriplexer | |
| CN201134488Y (en) | Waveguide antenna aperture metal piece coupled structure | |
| CN201134485Y (en) | Cross coupling construction of millimeter wave filter | |
| US11128324B2 (en) | 5G common filter with excellent PIMD performance using coupling method upon combining frequency bands and filtering method therewith | |
| CN213905563U (en) | Adjustable cavity medium duplexer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20190527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |