CN102637930A - Substrate-insertion type rectangular waveguide band elimination filter - Google Patents
Substrate-insertion type rectangular waveguide band elimination filter Download PDFInfo
- Publication number
- CN102637930A CN102637930A CN2012101138861A CN201210113886A CN102637930A CN 102637930 A CN102637930 A CN 102637930A CN 2012101138861 A CN2012101138861 A CN 2012101138861A CN 201210113886 A CN201210113886 A CN 201210113886A CN 102637930 A CN102637930 A CN 102637930A
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- rectangular waveguide
- dielectric substrate
- transmission line
- substrate
- elimination filter
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Abstract
The invention discloses a substrate-insertion type rectangular waveguide band elimination filter, which belongs to the field of microwave band elimination filter. The filter is characterized in that two cavities fold to form a rectangular waveguide transmission line; a slot for inserting a medium substrate is arranged at the folding part of any one cavity; the medium substrate is electrically connected with the corresponding cavity through metal conduction bands arranged at two sides of the medium substrate and is pressed and fixed by folding of the two cavities; a plurality of L-shaped quarter-wave resonators are arranged on any one surface of the medium substrate; and each resonator is coupled with the rectangular waveguide transmission line so as to generate a stop band. According to the invention, the substrate-insertion type rectangular waveguide band elimination filter has a simple structure, does not need to use an external waveguide resonator, has low difficulty in processing and assembly and is small in volume and low in cost.
Description
Technical field
The present invention relates to a kind of filter, relate in particular to a kind of rectangular waveguide band stop filter, belong to the microwave band-elimination filter field.
Background technology
Microwave band-elimination filter is a kind of microwave frequency device commonly used, and it is used to suppress the signal transmission of certain frequency range, thereby eliminates corresponding the interference.This filter is widely used in communication system, radar radio system and spuious measuring system.
Traditional waveguide port band stop filter often need be provided with waveguide transmission line and a plurality of external waveguide resonator, and waveguide resonator and waveguide transmission line are realized the band resistance through certain coupling mechanism.The general structure more complicated of this Waveguide bandstop filter, processing and assembly difficulty are bigger, and required precision is high, and volume and cost are also higher relatively.
Summary of the invention
The present invention is directed to the deficiency of prior art, and propose a kind of blade inserting rectangular waveguide band stop filter, with simplified structure and reduction processing and assembly difficulty.
This rectangular waveguide band stop filter comprises rectangular waveguide transmission line and dielectric substrate; Said rectangular waveguide transmission line is to constitute by two cavitys are involutory; Apposition position middle part at any cavity is provided with the groove that is used to insert dielectric substrate, and the thickness of this groove is identical with the thickness of dielectric substrate, and dielectric substrate is by two involutory being fixed of cavity; On any one side of dielectric substrate, be provided with resonator circuit, resonator circuit and the coupling of rectangular waveguide transmission line produce stopband.
Said two cavitys are involutory fixing through screw and nut; Said dielectric substrate is electrically connected through the metal conduction band and the respective cavities on its both sides; Said resonator circuit is made up of several L type quarter-wave resonance devices, and the spacing between any two adjacent L type quarter-wave resonance devices is 1/4th guide wavelengths.
Technique effect:
1, resonator is arranged on the dielectric substrate, and is positioned over the inside of waveguide transmission line, thereby need not to use external waveguide resonator, has simplified Filter Structures, has reduced volume, and has reduced the realization cost.
2, need not to be provided with accurate coupling aperture, difficulty of processing is little, and assembling and debugging are simple.
Description of drawings
Fig. 1 is main TV structure figure of the present invention.
Fig. 2 is the face upwarding assumption diagram of Fig. 1.
Fig. 3 is the side-looking structure chart of Fig. 1.
Fig. 4 is for inserting the cavity body structure figure of dielectric substrate.
Fig. 5 is HFSS simulation curve figure of the present invention.
Label title among Fig. 1, Fig. 2, Fig. 4: 1, cavity; 2, square wave guide cavity; 3, dielectric substrate; 4, screw hole; 5, metal conduction band; 6, L type resonator.
Embodiment
Be described further in the face of the present invention down.
Main TV structure of the present invention is as shown in Figure 1, comprises rectangular waveguide transmission line and dielectric substrate, and said dielectric substrate adopts pcb board; Said rectangular waveguide transmission line is to constitute by two cavitys are involutory, and the middle square wave guide cavity that forms is provided with the groove that is used to insert dielectric substrate at the apposition position middle part of any cavity; In Fig. 1, this groove is arranged at the apposition position of right cavity, and the thickness of this groove is identical with the thickness of dielectric substrate; The dielectric substrate that inserts is provided with resonator circuit by two involutory being fixed of cavity on any one side of dielectric substrate, another side does not have circuit; Produce coupling between resonator circuit and the rectangular waveguide transmission line, thereby obtain band resistance response.
Like Fig. 2, Fig. 3 and shown in Figure 4; On two cavitys, be equipped with six screw holes; Two cavitys are involutory fixing through six pairs of screw and nuts, and the both sides up and down of dielectric substrate are provided with two strip metal conduction bands, on the metal conduction band, are provided with several circular metal via holes; Be used to realize being electrically connected of metal conduction band and cavity insertion groove, i.e. ground connection.Resonator circuit on the dielectric substrate is made up of several L type quarter-wave resonance devices; Promptly the length summation of the vertical direction of this resonator and horizontal direction is about quarter-wave; In Fig. 4, adopt three L type resonators; Each L type resonator all is connected with same strip metal conduction band; Spacing between any two adjacent L type resonators is 1/4th guide wavelengths, is the coupling power of each resonator of scalable and rectangular waveguide transmission line through the length of regulating L type resonator vertical direction.
We carry out HFSS emulation to one of the present invention rectangular waveguide band stop filter that comprises three resonators, and simulation curve is as shown in Figure 5, and its stop-band frequency is about 9.5GHz, and the about 1GHz of bandwidth of rejection suppresses more than the 35dB.
Claims (4)
1. blade inserting rectangular waveguide band stop filter; It is characterized in that: comprise rectangular waveguide transmission line and dielectric substrate; Said rectangular waveguide transmission line is to constitute by two cavitys are involutory; Apposition position middle part at any cavity is provided with the groove that is used to insert dielectric substrate, and the thickness of this groove is identical with the thickness of dielectric substrate, and dielectric substrate is by two involutory being fixed of cavity; On any one side of dielectric substrate, be provided with resonator circuit, resonator circuit and the coupling of rectangular waveguide transmission line produce stopband.
2. blade inserting rectangular waveguide band stop filter according to claim 1 is characterized in that: said two cavitys are involutory fixing through screw and nut.
3. blade inserting rectangular waveguide band stop filter according to claim 1 is characterized in that: said dielectric substrate is electrically connected through the metal conduction band and the respective cavities on its both sides.
4. blade inserting rectangular waveguide band stop filter according to claim 1; It is characterized in that: said resonator circuit is made up of several L type quarter-wave resonance devices, and the spacing between any two adjacent L type quarter-wave resonance devices is 1/4th guide wavelengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101138861A CN102637930A (en) | 2012-04-17 | 2012-04-17 | Substrate-insertion type rectangular waveguide band elimination filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101138861A CN102637930A (en) | 2012-04-17 | 2012-04-17 | Substrate-insertion type rectangular waveguide band elimination filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102637930A true CN102637930A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101138861A Pending CN102637930A (en) | 2012-04-17 | 2012-04-17 | Substrate-insertion type rectangular waveguide band elimination filter |
Country Status (1)
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| CN (1) | CN102637930A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972623A (en) * | 2014-04-22 | 2014-08-06 | 电子科技大学 | Waveguide filter based on electromagnetically induced transparency |
| CN105612655A (en) * | 2013-10-07 | 2016-05-25 | 日本电气株式会社 | Coaxial wiring device and transmitter-receiver demultiplexer |
| CN107658533A (en) * | 2017-10-20 | 2018-02-02 | 京信通信系统（中国）有限公司 | Bandstop filter and radio-frequency devices |
| CN107910624A (en) * | 2017-11-06 | 2018-04-13 | 江苏贝孚德通讯科技股份有限公司 | Coated by dielectric tunable filter and its design method, adjustable duplexer |
| CN114883767A (en) * | 2022-05-25 | 2022-08-09 | 厦门大学 | Low-pass rectangular waveguide with band-stop characteristic and internally inserted with SSPP material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349275A (en) * | 2000-10-18 | 2002-05-15 | 汤姆森许可贸易公司 | Waveguide filter |
| CN1534823A (en) * | 2003-03-31 | 2004-10-06 | ��ķɭ���ó��˾ | Floating microwave filtor in wave guide structure |
| CN1732592A (en) * | 2003-01-06 | 2006-02-08 | 汤姆森特许公司 | Waveguide E-plane RF bandpass filter with pseudo-elliptic response |
| JP2006191428A (en) * | 2005-01-07 | 2006-07-20 | Japan Radio Co Ltd | Microstrip line waveguide converter |
| CN101317299A (en) * | 2005-09-30 | 2008-12-03 | 爱立信股份有限公司 | Waveguide bandstop filter |
-
2012
- 2012-04-17 CN CN2012101138861A patent/CN102637930A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349275A (en) * | 2000-10-18 | 2002-05-15 | 汤姆森许可贸易公司 | Waveguide filter |
| CN1732592A (en) * | 2003-01-06 | 2006-02-08 | 汤姆森特许公司 | Waveguide E-plane RF bandpass filter with pseudo-elliptic response |
| CN1534823A (en) * | 2003-03-31 | 2004-10-06 | ��ķɭ���ó��˾ | Floating microwave filtor in wave guide structure |
| JP2006191428A (en) * | 2005-01-07 | 2006-07-20 | Japan Radio Co Ltd | Microstrip line waveguide converter |
| CN101317299A (en) * | 2005-09-30 | 2008-12-03 | 爱立信股份有限公司 | Waveguide bandstop filter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612655A (en) * | 2013-10-07 | 2016-05-25 | 日本电气株式会社 | Coaxial wiring device and transmitter-receiver demultiplexer |
| CN103972623A (en) * | 2014-04-22 | 2014-08-06 | 电子科技大学 | Waveguide filter based on electromagnetically induced transparency |
| CN103972623B (en) * | 2014-04-22 | 2016-08-24 | 电子科技大学 | A kind of waveguide filter based on electromagnetic induced transparency |
| CN107658533A (en) * | 2017-10-20 | 2018-02-02 | 京信通信系统（中国）有限公司 | Bandstop filter and radio-frequency devices |
| CN107910624A (en) * | 2017-11-06 | 2018-04-13 | 江苏贝孚德通讯科技股份有限公司 | Coated by dielectric tunable filter and its design method, adjustable duplexer |
| CN114883767A (en) * | 2022-05-25 | 2022-08-09 | 厦门大学 | Low-pass rectangular waveguide with band-stop characteristic and internally inserted with SSPP material |
| CN114883767B (en) * | 2022-05-25 | 2023-02-24 | 厦门大学 | Low-pass rectangular waveguide with band-stop characteristic and internally inserted with SSPP material |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |