CN102709630B - Filter of satellite communication earth station receiver - Google Patents
Filter of satellite communication earth station receiver Download PDFInfo
- Publication number
- CN102709630B CN102709630B CN201210180383.6A CN201210180383A CN102709630B CN 102709630 B CN102709630 B CN 102709630B CN 201210180383 A CN201210180383 A CN 201210180383A CN 102709630 B CN102709630 B CN 102709630B
- Authority
- CN
- China
- Prior art keywords
- oversized waveguide
- resonant cavity
- filter
- oversized
- waveguide resonant
- 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
A kind of filter of satellite communication earth station receiver, it comprises cover plate (1) and base plate (2), described base plate (2) comprises incoming wave guide cavity (3) and output wave guide cavity (4), is provided with at least two oversized waveguide resonant cavitys between incoming wave guide cavity (3) and output wave guide cavity (4).The present invention is used for overcoming the restriction of physical size by non-physical cross-couplings, realize the transmission zero away from passband, thus when not increasing filter order, widen filter stop bend, increase considerably the stopband attenuation away from passband.
Description
Technical field
The present invention relates to a kind of waveguide filter, particularly relate to containing cross-linked waveguide filter.
Background technology
At present, band pass filter is a kind of base electronic components and parts, and it is used for the signal of telecommunication in selective filter passband, the signal of telecommunication simultaneously in rejects trap stopband.Microwave and millimeter wave band pass filter, through being commonly used in Modem radio transceiver, should have low insertion loss, high selectivity and Wide stop bands.Such as, in Ka band satellite communication ground station receiver, filter should be able to transmit the signal in 19.2 GHz-21.2 GHz frequency bands, the signal in transmit frequency band 29.5 GHz-30 GHz frequency band can be suppressed simultaneously, and the insertion loss in passband should be less than 1dB, in order to avoid receive simultaneously and launch and produce from blocking effect, the stopband attenuation of filter at least should be greater than 45dB.
Waveguide filter has the advantages such as loss is little, power capacity is large, but the strong dispersion effect of waveguide has had a strong impact on the Stopband Performance of waveguide filter.Although adopt E face discontinuity, as ridge waveguide, can reduce the effect of dispersion of waveguide, also cause whole filter construction complicated, processing cost significantly increases simultaneously.Increase the progression of filter, also can widen the stopband of waveguide filter, improve the stopband attenuation of filter, but too increase insertion loss and the volume of filter simultaneously.
The transmission zero be positioned in the imaginary axis of complex frequency face can be used for improving the selectivity of filter and stopband attenuation.The method realizing transmission zero has two kinds: one to be poles extracting technology usually.Transmission zero adopts band resistance resonator to realize, and the resonance frequency that the position of transmission zero hinders resonator by the band of correspondence determines, this band resistance resonator also produces a transmission pole simultaneously.Now, all couplings can have identical polar.Two is physical intersection coupling techniques.Between non-adjacent resonant unit, introduce cross-couplings, many signal path can be produced.If at certain frequency, the signal amplitude of two paths is equal, symbol contrary, and so the signal of this two paths cancels each other, and a transmission zero will appear in this frequency.Now, the coupling of two kinds of polarity must be realized simultaneously.But due to the restriction of physical size, distance passband is comparatively near usually to utilize the transmission zero of two kinds of technology realizations above, can not be used for improving the stopband attenuation away from passband.
Summary of the invention
The object of the invention is for the problems referred to above, propose a kind of filter of satellite communication earth station receiver.Utilize non-physical cross-couplings to realize the transmission zero away from passband, thus when not increasing filter order, widen filter stop bend, increase substantially the stopband attenuation away from passband.
Technical scheme of the present invention is:
A kind of filter of satellite communication earth station receiver, it comprises cover plate and base plate, and described base plate comprises incoming wave guide cavity and output wave guide cavity, is provided with at least two oversized waveguide resonant cavitys between incoming wave guide cavity and output wave guide cavity.
Oversized waveguide resonant cavity of the present invention is multiple, carries out cascade between each oversized waveguide resonant cavity by coupling iris.
Oversized waveguide resonant cavity of the present invention comprises at least one TE101/TE301 oversized waveguide chamber and at least one TE101/TE201 oversized waveguide chamber.
Oversized waveguide resonant cavity of the present invention comprises three TE101/TE301 oversized waveguide chambeies and a TE101/TE201 oversized waveguide chamber, carries out cascade between each oversized waveguide resonant cavity by coupling iris.
Oversized waveguide resonant cavity of the present invention is formed by metallic aluminium or other intermetallic composite coating, and cavity inner wall is silver-plated; By one section of waveguide of coupling iris coupling excitation first oversized waveguide resonant cavity; Be coupled to last oversized waveguide resonant cavity by coupling iris, export passband signal.
Each oversized waveguide resonant cavity of the present invention all has main mould and a higher mode, provide two bars transmission paths, the Signal averaging that amplitude is equal, phase place is contrary produces transmission zero, and transmission zero is positioned at distance passband stopband far away, by changing the relative angle of I/O, change the position of transmission zero.
Beneficial effect of the present invention:
The present invention utilizes non-physical cross-couplings to realize the transmission zero away from passband, thus when not increasing filter order, widens filter stop bend, increases substantially the stopband attenuation away from passband.
Waveguide filter of the present invention is formed by the cascade of several oversized waveguide resonant cavity, and input and output adopt one section of waveguide.The passband of filter is formed by the main mould of oversized waveguide resonant cavity, and the higher mode of oversized waveguide resonant cavity provides another signal path, and the signal path that main mould is formed superposes mutually, thus creates the transmission zero away from passband.The size of oversized waveguide resonant cavity and coupling iris, can determine the position required for pass-band performance and transmission zero, each transmission zero is determined separately by the oversized waveguide resonant cavity of correspondence and the size of coupling iris thereof.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the S parameter of Ka band satellite communication ground station filter for receiver.
Fig. 3 is the group delay of Ka band satellite communication ground station filter for receiver.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
A kind of filter of satellite communication earth station receiver, it comprises cover plate 1 and base plate 2, and described base plate 2 comprises incoming wave guide cavity 3 and output wave guide cavity 4, is provided with at least two oversized waveguide resonant cavitys between incoming wave guide cavity 3 and output wave guide cavity 4.
Waveguide filter of the present invention, comprises
Carried out several oversized waveguide resonant cavitys of cascade by coupling iris, chamber is formed by metallic aluminium or other intermetallic composite coating, and cavity wall is silver-plated;
By one section of waveguide of diaphragm coupling excitation first oversized waveguide resonant cavity;
Be coupled to last oversized waveguide resonant cavity by diaphragm, export passband signal.
As shown in Figure 1, oversized waveguide resonant cavity of the present invention comprises three TE101/TE301 oversized waveguide chamber 5-1 and TE101/TE201 oversized waveguide chamber 5-2, carries out cascade between each oversized waveguide resonant cavity by coupling iris 6.
Oversized waveguide resonant cavity of the present invention is formed by metallic aluminium or other intermetallic composite coating, and cavity inner wall is silver-plated; By one section of waveguide of coupling iris 6 coupling excitation first oversized waveguide resonant cavity; Be coupled to last oversized waveguide resonant cavity by coupling iris 6, export passband signal.
Each oversized waveguide resonant cavity of the present invention all has main mould and a higher mode, provide two bars transmission paths, the Signal averaging that amplitude is equal, phase place is contrary produces transmission zero, and transmission zero is positioned at distance passband stopband far away, by changing the relative angle of I/O, change the position of transmission zero.A kind of waveguide filter of the present invention is formed by the cascade of several oversized waveguide resonant cavity, and input and output adopt one section of waveguide.The passband of filter is formed by the main mould of oversized waveguide resonant cavity, and the higher mode of oversized waveguide resonant cavity provides another signal path, and the signal path that main mould is formed superposes mutually, thus creates the transmission zero away from passband.The size of oversized waveguide resonant cavity and coupling iris, can determine the position required for pass-band performance and transmission zero, each transmission zero is determined separately by the oversized waveguide resonant cavity of correspondence and the size of coupling iris thereof.
During concrete enforcement:
This filter is a waveguiding structure, and it is formed by metallic aluminium or other intermetallic composite coating completely, comprises cavity and cover plate two parts, and silver-plated bottom wire chamber inwall and metal cover board, metal cover board is fixed to cavity below by screw.Each unit oversized waveguide resonant cavity all produces a transmission pole and a transmission zero, and in order to obtain the transmission zero of diverse location, the size of each unit oversized waveguide resonant cavity and corresponding coupling iris is all different.
As shown in Figure 1, this filter is realized based on Ka band satellite communication ground station receiver pass-band, it is made up of three TE101/TE301 oversized waveguide chambeies and a TE101/TE201 oversized waveguide chamber, and (TE101 mould module exponent is in the X direction 1, module exponent in Y-direction is 0, and the module exponent in Z-direction is 1; TE301 mould module exponent is in the X direction 3, and the module exponent in Y-direction is 0, and the module exponent in Z-direction is 1; TE201 mould module exponent is in the X direction 2, and the module exponent in Y-direction is 0, and the module exponent in Z-direction is 1).The height of whole filter is 0.17 inch, and chaffy thickness is 16 mils, and the radius of corner of diaphragm is 31 mils.Its passband is positioned at 19.2 GHz-21.2 GHz, and the insertion loss of passband is better than 0.2dB, and group delay is changed to 0.3ns.54 dB are better than in the decay of transmit frequency band 29.5 GHz-30 GHz.TE101/TE201 oversized waveguide chamber creates the transmission zero be positioned near 29.5GHz, and TE101/TE301 oversized waveguide chamber creates the transmission zero be positioned near 31GHz.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (3)
1. a filter of satellite communication earth station receiver, it comprises cover plate (1) and base plate (2), described base plate (2) comprises incoming wave guide cavity (3) and output wave guide cavity (4), it is characterized in that being provided with at least two oversized waveguide resonant cavitys between incoming wave guide cavity (3) and output wave guide cavity (4); Described oversized waveguide resonant cavity comprises at least one TE101/TE301 oversized waveguide chamber (5-1) and at least one TE101/TE201 oversized waveguide chamber (5-2); Each oversized waveguide resonant cavity all has main mould and a higher mode, provide two bars transmission paths, the Signal averaging that amplitude is equal, phase place is contrary produces transmission zero, and transmission zero is positioned at distance passband stopband far away, by changing the relative angle of I/O, change the position of transmission zero; Described oversized waveguide resonant cavity is multiple, carries out cascade between each oversized waveguide resonant cavity by coupling iris (6), and the size of each unit oversized waveguide resonant cavity and corresponding coupling iris (6) is all different.
2. filter of satellite communication earth station receiver according to claim 1, it is characterized in that described oversized waveguide resonant cavity comprises three TE101/TE301 oversized waveguide chambeies (5-1) and a TE101/TE201 oversized waveguide chamber (5-2), between each oversized waveguide resonant cavity, carry out cascade by coupling iris (6).
3. filter of satellite communication earth station receiver according to claim 1, it is characterized in that described oversized waveguide resonant cavity is formed by metallic aluminium or other intermetallic composite coating, cavity inner wall is silver-plated; By one section of waveguide of coupling iris (6) coupling excitation first oversized waveguide resonant cavity; Be coupled to last oversized waveguide resonant cavity by coupling iris (6), export passband signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210180383.6A CN102709630B (en) | 2011-06-02 | 2012-06-01 | Filter of satellite communication earth station receiver |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101470937 | 2011-06-02 | ||
| CN201110147093 | 2011-06-02 | ||
| CN201110147093.7 | 2011-06-02 | ||
| CN201210180383.6A CN102709630B (en) | 2011-06-02 | 2012-06-01 | Filter of satellite communication earth station receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102709630A CN102709630A (en) | 2012-10-03 |
| CN102709630B true CN102709630B (en) | 2015-09-02 |
Family
ID=46902261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210180383.6A Expired - Fee Related CN102709630B (en) | 2011-06-02 | 2012-06-01 | Filter of satellite communication earth station receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102709630B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490124B (en) * | 2013-09-26 | 2016-03-30 | 西安空间无线电技术研究所 | A kind of waveguide duplexer |
| CN104241746A (en) * | 2014-09-09 | 2014-12-24 | 江苏贝孚德通讯科技股份有限公司 | Waveguide high-frequency low-pass filter |
| CN105304981B (en) * | 2015-10-30 | 2018-07-06 | 成都九洲迪飞科技有限责任公司 | The broadband height for covering Ka wave bands inhibits bandpass filter |
| CN105470605A (en) * | 2015-12-18 | 2016-04-06 | 航天恒星科技有限公司 | Waveguide filter and wave band transmitter |
| CN105406157B (en) * | 2015-12-22 | 2019-04-02 | 江苏贝孚德通讯科技股份有限公司 | A kind of diaphragm type tunable filter |
| CN106992346B (en) * | 2017-04-07 | 2019-02-19 | 北京理工大学 | A kind of Millimeter Wave Rectangular Wave cavity body filter with dual transfer zero |
| CN111384552A (en) * | 2018-12-29 | 2020-07-07 | 深圳市大富科技股份有限公司 | Filter and communication device |
| 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 |
| CN112909458B (en) * | 2021-02-08 | 2021-09-10 | 湖南国科雷电子科技有限公司 | W-waveband E-plane waveguide filter |
| CN117766965A (en) * | 2023-12-28 | 2024-03-26 | 北京华通时空通信技术有限公司 | Filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6657521B2 (en) * | 2002-04-26 | 2003-12-02 | The Boeing Company | Microwave waveguide filter having rectangular cavities, and method for its fabrication |
| WO2007013723A1 (en) * | 2005-07-26 | 2007-02-01 | Electronics And Telecommunications Research Institute | Inductive waveguide iris for adaptable tuning |
| CN201804984U (en) * | 2010-02-02 | 2011-04-20 | 东南大学 | Compact multistage high-order mode filter for rectangular over-mode waveguide |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005341350A (en) * | 2004-05-28 | 2005-12-08 | New Japan Radio Co Ltd | Filter |
-
2012
- 2012-06-01 CN CN201210180383.6A patent/CN102709630B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6657521B2 (en) * | 2002-04-26 | 2003-12-02 | The Boeing Company | Microwave waveguide filter having rectangular cavities, and method for its fabrication |
| WO2007013723A1 (en) * | 2005-07-26 | 2007-02-01 | Electronics And Telecommunications Research Institute | Inductive waveguide iris for adaptable tuning |
| CN201804984U (en) * | 2010-02-02 | 2011-04-20 | 东南大学 | Compact multistage high-order mode filter for rectangular over-mode waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709630A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102709630B (en) | Filter of satellite communication earth station receiver | |
| US9472835B2 (en) | Filtering apparatus | |
| US9899716B1 (en) | Waveguide E-plane filter | |
| CN209374644U (en) | A kind of filter and communication radio frequency device | |
| CN108448211A (en) | Slab Dielectric Waveguide terahertz filter | |
| CN110808440A (en) | Dielectric waveguide duplexer | |
| CN103390784A (en) | Miniaturized substrate integration waveguide duplexer | |
| CN112928411B (en) | Dual-mode dielectric filter and zero adjusting method thereof | |
| CN104868211A (en) | Tunable high power waveguide band-stop filter | |
| CN104167578B (en) | Substrate integration wave-guide band pass filter | |
| CN211125984U (en) | Filter and communication equipment | |
| CN110679033A (en) | Compact band-pass filter | |
| CN108365311B (en) | Reflection-free single conductor surface wave transmission line band-stop filter | |
| Zhang et al. | Design and optimization of high shape factor high-order substrate integrated waveguide filter with cross coupling | |
| CN105914433B (en) | A kind of bandstop filter applied to broadband receiver | |
| CN113497317B (en) | Filter and communication equipment | |
| CN204577550U (en) | A kind of tunable high power Waveguide bandstop filter | |
| CN216597925U (en) | Circular waveguide filter with eight irises | |
| CN111313133B (en) | Double-layer filter and harmonic wave improving method | |
| CN110875506B (en) | Compact dielectric filling waveguide filter | |
| US20190372545A1 (en) | Compact band pass filter with vias | |
| CN113036354A (en) | Filter and communication equipment | |
| CN113725574A (en) | Communication equipment and filter | |
| CN108417937B (en) | Reflection-free coplanar waveguide band-stop filter | |
| CN113497315A (en) | Filter and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20180601 |