CN202167596U - Filter capable of achieving coupling transmission zeros - Google Patents
Filter capable of achieving coupling transmission zeros Download PDFInfo
- Publication number
- CN202167596U CN202167596U CN2011202489194U CN201120248919U CN202167596U CN 202167596 U CN202167596 U CN 202167596U CN 2011202489194 U CN2011202489194 U CN 2011202489194U CN 201120248919 U CN201120248919 U CN 201120248919U CN 202167596 U CN202167596 U CN 202167596U
- Authority
- CN
- China
- Prior art keywords
- resonator
- coupled
- coupling column
- cavity
- filter capable
- 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 relates to a filter capable of achieving coupling transmission zeros, which comprises a cavity and two connectors. The connectors comprise an input connector and an output connector and are arranged at two ends of the cavity. The filter capable of achieving the coupling transmission zeros further comprises a first coupled column, a second coupled column, a first resonator, a second resonator and a low-pass element which are arranged in the cavity. The input connector is respectively connected with the first coupled column and the second coupled column through the low-pass element, the first coupled column is connected with the first resonator in coupled mode, and the second coupled column is connected with the second resonator in coupled mode. Compared with the prior art, the filter capable of achieving the coupling transmission zeros has the advantages of configuring positions of the zeros more conveniently and the like.
Description
Technical field
The utility model relates to a kind of filter, especially relates to a kind of coupled transfer filter at zero point of realizing.
Background technology
In the modern microwave millimeter-wave systems, filter is one of vitals, is used for channel filtering and selects, the good and bad quality that directly influences whole communication system of its performance.Low Insertion Loss, high inhibition degree, low cost and designing fast etc. becomes the requirement of filter key technology, and conventional filter and method for designing are difficult to adapt to the needs of modern development.The broad sense Chebyshev filter has sharp-pointed frequency selectivity, and group delay that again can flat filter can also form multiband filter, therefore in various microwave and millimeter wave system, is widely used.
Traditional circuit realizes can adopting filter coupled zero point the topological coupled structure of N and N+2 (N >=1); But at some fixedly under the claimed structure; In f0* (1.2～1.3) frequency multiplication, produce parasitic couplings, can't reach controlling consumption of filter, wherein the f0=passband central frequency.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of coupled transfer filter at zero point of realizing to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of coupled transfer filter at zero point of realizing; Comprise cavity, joint, described joint is provided with two, is input adapter and out splice going splice; Be located at the two ends of cavity respectively; It is characterized in that also comprise first coupling column, second coupling column, first resonator, second resonator and the low pass element that are located in the cavity, described input adapter is connected with first coupling column, second coupling column respectively through the low pass original paper; Described first coupling column and first resonator are of coupled connections, and described second coupling column and second resonator are of coupled connections.
Described joint is a sub-miniature A connector.
Described low pass element is an inductance element.
Compared with prior art, the utlity model has following advantage:
1) it is inductive coupled to utilize the source and second chamber to produce, the position that can arrange more easily zero point;
2) this kind coupled structure can not produce parasitic couplings in the scope of f0*2, and the intensity of port and second chamber coupling can calculate through the method that S11 reflects time delay.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of coupled transfer filter at zero point of realizing comprises cavity 1, joint, and described joint is provided with two; Be input adapter 6 and out splice going splice; Be located at the two ends of cavity 1 respectively, also comprise first coupling column 2 that is located in the cavity, second coupling column 3, first resonator 4, second resonator 5 and low pass element 7, described input adapter 6 is connected with first coupling column 2, second coupling column 3 respectively through low pass original paper 7; Described first coupling column 2 and first resonator 4 are of coupled connections, and described second coupling column 3 and second resonator 5 are of coupled connections.Described joint is a sub-miniature A connector.Described low pass element 7 is an inductance element.
Claims (3)
1. realize the coupled transfer filter at zero point for one kind; Comprise cavity, joint, described joint is provided with two, is input adapter and out splice going splice; Be located at the two ends of cavity respectively; It is characterized in that also comprise first coupling column, second coupling column, first resonator, second resonator and the low pass element that are located in the cavity, described input adapter is connected with first coupling column, second coupling column respectively through the low pass original paper; Described first coupling column and first resonator are of coupled connections, and described second coupling column and second resonator are of coupled connections.
2. a kind of coupled transfer filter at zero point of realizing according to claim 1 is characterized in that described joint is a sub-miniature A connector.
3. a kind of coupled transfer filter at zero point of realizing according to claim 1 is characterized in that described low pass element is an inductance element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202489194U CN202167596U (en) | 2011-07-14 | 2011-07-14 | Filter capable of achieving coupling transmission zeros |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202489194U CN202167596U (en) | 2011-07-14 | 2011-07-14 | Filter capable of achieving coupling transmission zeros |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167596U true CN202167596U (en) | 2012-03-14 |
Family
ID=45803404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202489194U Expired - Fee Related CN202167596U (en) | 2011-07-14 | 2011-07-14 | Filter capable of achieving coupling transmission zeros |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881975A (en) * | 2011-07-14 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Filter realizing coupled transmission zeros |
| WO2017214982A1 (en) * | 2016-06-17 | 2017-12-21 | 华为技术有限公司 | Multiplexer and device |
-
2011
- 2011-07-14 CN CN2011202489194U patent/CN202167596U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881975A (en) * | 2011-07-14 | 2013-01-16 | 凯镭思通讯设备（上海）有限公司 | Filter realizing coupled transmission zeros |
| CN102881975B (en) * | 2011-07-14 | 2015-04-08 | 凯镭思通讯设备（上海）有限公司 | Filter realizing coupled transmission zeros |
| WO2017214982A1 (en) * | 2016-06-17 | 2017-12-21 | 华为技术有限公司 | Multiplexer and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103280621B (en) | Five decile power splitters | |
| CN103390784B (en) | Miniaturized substrate integration waveguide duplexer | |
| CN105720339A (en) | Dual-band adjustable band-pass filter | |
| CN103811832A (en) | Filter, receiver, transmitter and transceiver | |
| CN103594762B (en) | A kind of controlled hybrid electromagnetic coupling filter | |
| CN102593567A (en) | Ultra-wideband multi-octave micro directional coupler | |
| CN202167596U (en) | Filter capable of achieving coupling transmission zeros | |
| CN105226354A (en) | The strong high frequency side stopband of three mode couplings suppresses microstrip bandpass filter and coupling process | |
| CN204375890U (en) | Based on the ultra-broadband dual-frequency band pass filter of dual-mode resonator | |
| CN102760922B (en) | Communication radio-frequency device, as well as filter and resonator overlapped coupling method of filter | |
| CN203690451U (en) | Duplexer | |
| CN104466333A (en) | Three-port high isolation equal division power distributor integrated with filtering function | |
| CN102881975B (en) | Filter realizing coupled transmission zeros | |
| CN201749928U (en) | Novel right bridge | |
| CN109390644B (en) | Double-cavity four-mode dielectric waveguide filter | |
| CN204088527U (en) | There is positive and negative convertible cross-linked waveguide duplexer | |
| CN209045720U (en) | A kind of four mould dielectric waveguide filter of two-chamber | |
| CN203644911U (en) | Micro-strip super-wide stop-band low-pass filter | |
| CN203644909U (en) | Whole-cavity-type quadriplexer | |
| CN202633482U (en) | Compact band elimination filter | |
| KR20160117041A (en) | UWB bandpass filter using stepped impedance short and open circuited stub | |
| CN204011654U (en) | Strong coupling device with air chamber | |
| CN105789765A (en) | Dual-mode resonator based controllable UWB (ultra-wide-band) dual-band band-pass filter | |
| CN204375891U (en) | Plane lower passband leads to double frequency filter | |
| CN202633483U (en) | Adjustable band-rejection filter |
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: 20120314 Termination date: 20150714 |
|
| EXPY | Termination of patent right or utility model |