CN202601817U - TE011 mode circular cavity filter having plurality of asymmetric zeros - Google Patents
TE011 mode circular cavity filter having plurality of asymmetric zeros Download PDFInfo
- Publication number
- CN202601817U CN202601817U CN 201120254975 CN201120254975U CN202601817U CN 202601817 U CN202601817 U CN 202601817U CN 201120254975 CN201120254975 CN 201120254975 CN 201120254975 U CN201120254975 U CN 201120254975U CN 202601817 U CN202601817 U CN 202601817U
- Authority
- CN
- China
- Prior art keywords
- cylindrical cavity
- circular cavity
- cavity
- filter
- cylindrical
- 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 TE011 mode circular cavity filter having a plurality of asymmetric zeros. The TE011 mode circular cavity filter comprises a body and a cover plate, and at least five circular cavities are arranged on one surface of the body which is adjacent to the cover plate. The filter is characterized in that, a first circular cavity, a second circular cavity and a third circular cavity are positioned on a first straight line in sequence, and a fourth circular cavity and a fifth circular cavity are positioned on a second straight line; the first straight line is parallel to the second straight line, the fourth circular cavity is triangularly arranged with the third circular cavity and the second circular cavity, and the fifth circular cavity is triangularly arranged with the second circular cavity and the first circular cavity, so that the first circular cavity and the second circular cavity, the second circular cavity and the third circular cavity, the third circular cavity and the fourth circular cavity, and the fourth circular cavity and the fifth circular cavity are adjacently coupled; and the first circular cavity, the second circular cavity, the third circular cavity, the fourth circular cavity and the fifth circular cavity are all TE011 mode circular cavities, and the fourth circular cavity and the second circular cavity, the fifth circular cavity and the second circular cavity, and the fifth circular cavity and first circular cavity are non-adjacently coupled together. The filter is small in size, requires less material consumption and low production cost, and can realize the coupling between the non-adjacent circular cavities.
Description
Technical field
The utility model relates to a kind of microwave filter.Specifically, be the TE011 mould cylindrical cavity filter at a plurality of asymmetric zero points that can realize being coupled between non-adjacent cylindrical cavity.
Background technology
All know in the microwave filter manufacturing,, be widely used on narrow-band, the low-loss microwave filter/multiplexer because wave-guide cavity wave filter has low-loss, operating power advantages of higher.For low-frequency band,, need to adopt technology such as metal embedding or dielectric resonator loading to reduce the volume of waveguide cavity because the waveguide cavity volume is bigger.And for high frequency band for example greater than the wave band of 20Ghz, then cause the Q value of waveguide cavity low excessively, requirement on machining accuracy is higher because of the waveguide cavity volume is too small.As the higher mode waveguide cavity is applied to high frequency band, not only can improve the Q value of waveguide cavity, also can increase the volume of waveguide cavity.But when the higher mode waveguide cavity was applied in microwave filter, for avoiding interference, requiring had the appearance that does not have higher mode in the band frequency scope near the operating frequency.TE011 mould cylindrical cavity has been proved to be the highest waveguide cavity of Q value, can be applicable on the microwave filter.But the TE011 mould cylindrical cavity of this microwave filter all is on the straight line, has only between adjacent cylindrical cavity just can be coupled, and makes that this microwave filter is symmetrical transmission zero, symmetry response filter.Because the TE011 mould cylindrical cavity of above-mentioned microwave filter all is on the straight line, design one 7 rank wave filter just needs 7 cylindrical cavities, makes that the volume of this microwave filter is big, consumptive material is more, production cost is higher.
The utility model content
The problem that the utility model will solve provides the TE011 mould cylindrical cavity filter at a kind of a plurality of asymmetric zero points.This filter, volume is little, and consumptive material is few, and production cost is low.
For addressing the above problem, take following technical scheme:
The TE011 mould cylindrical cavity filter at a plurality of asymmetric zero points of the utility model comprises body and cover plate; Have first cylindrical cavity, second cylindrical cavity, the 3rd cylindrical cavity, the 4th cylindrical cavity and the 5th cylindrical cavity at least on the body one side adjacent with cover plate; Input and output are arranged on the body wall, and this input, output are communicated with first cylindrical cavity and the 5th cylindrical cavity respectively.Be characterized in that first cylindrical cavity, second cylindrical cavity and the 3rd cylindrical cavity are on first straight line successively, the 4th cylindrical cavity and the 5th cylindrical cavity are on second straight line.First straight line and second straight line parallel, and be triangularly arranged between the 4th cylindrical cavity and the 3rd cylindrical cavity, second cylindrical cavity, be triangularly arranged between the 5th cylindrical cavity and second cylindrical cavity, first cylindrical cavity.Make win between the cylindrical cavity and second cylindrical cavity, between second cylindrical cavity and the 3rd cylindrical cavity, between the 3rd cylindrical cavity and the 4th cylindrical cavity, be adjacent coupled between the 4th cylindrical cavity and the 5th cylindrical cavity.Said first cylindrical cavity, second cylindrical cavity, the 3rd cylindrical cavity, the 4th cylindrical cavity and the 5th cylindrical cavity are TE011 mould cylindrical cavity, are non-adjacent coupled together between the 4th cylindrical cavity and second cylindrical cavity.
The further improvement project of the utility model is to be non-adjacent coupled together between the 5th cylindrical cavity and second cylindrical cavity.
The further improvement project of the utility model is to be non-adjacent coupled together between the 5th cylindrical cavity and first cylindrical cavity.
Take such scheme, have the following advantages:
Can be found out that by such scheme because the cylindrical cavity that the utility model adopts is TE011 mould cylindrical cavity, first cylindrical cavity, second cylindrical cavity and the 3rd cylindrical cavity are on first straight line, the 4th cylindrical cavity and the 5th cylindrical cavity are on second straight line.First straight line and second straight line parallel, and be triangularly arranged between the 4th cylindrical cavity and the 3rd cylindrical cavity, second cylindrical cavity, be triangularly arranged between the 5th cylindrical cavity and second cylindrical cavity, first cylindrical cavity.Make win between the cylindrical cavity and second cylindrical cavity, between second cylindrical cavity and the 3rd cylindrical cavity, between the 3rd cylindrical cavity and the 4th cylindrical cavity, be adjacent coupled between the 4th cylindrical cavity and the 5th cylindrical cavity.Be non-adjacent coupled together between the 4th cylindrical cavity and second cylindrical cavity, be non-adjacent coupled together between the 5th cylindrical cavity and second cylindrical cavity, be non-adjacent coupled together between the 5th cylindrical cavity and first cylindrical cavity.Make that this microwave filter is asymmetric zero point, asymmetry response filter.Design one and be equivalent to the microwave filter that 8 rank do not have transmission zero; Utilize the utility model only to need 5 cylindrical cavities; Compare with symmetrical transmission zero, symmetry response filter in the background technology, reduced cylindrical cavity, dwindled the volume of microwave filter; Reduce material consumption, reduced production cost.
Description of drawings
Fig. 1 is the TE011 mould cylindrical cavity filter construction sketch map at a plurality of asymmetric zero points of the utility model, and this figure is the schematic top plan view of removing behind the cover plate;
Fig. 1-the 1st has the response curve of the non-adjacent coupled filter of a transmission zero;
Fig. 2 is the microwave filter structural representation with two asymmetric zero points;
Fig. 2-the 1st has the response curve of the non-adjacent coupled filter of two transmission zeros
Fig. 3 is the microwave filter structural representation with two asymmetric zero points;
Fig. 3-the 1st has the response curve of the non-adjacent coupled filter of three transmission zeros.
Embodiment
As shown in Figure 1, the TE011 mould cylindrical cavity filter at a plurality of asymmetric zero points of the utility model comprises body 6, and this body is a cuboid, is processed with first cylindrical cavity 1, second cylindrical cavity 2, the 3rd cylindrical cavity 3, the 4th cylindrical cavity 4 and the 5th cylindrical cavity 5 on its one side.Wherein, first cylindrical cavity 1, second cylindrical cavity 2 and the 3rd cylindrical cavity 3 are on first straight line successively, and the 4th cylindrical cavity 4 and the 5th cylindrical cavity 5 are on second straight line.First straight line and second straight line parallel, and the 4th cylindrical cavity 4 and the 3rd cylindrical cavity 3,2 of second cylindrical cavities be triangularly arranged, the 5th cylindrical cavity 5 and second cylindrical cavity 2,1 of first cylindrical cavity are triangularly arranged.First cylindrical cavity 1 all is processed with 5 of the 5th cylindrical cavities with 4 of the 4th cylindrical cavities, the 4th cylindrical cavity 4 with 3 of the 3rd cylindrical cavities, the 3rd cylindrical cavity 3 with 2 of second cylindrical cavities, second cylindrical cavity 2 and is communicated with window 7; The cylindrical cavity 1 of winning all is communicated with 5 of the 5th cylindrical cavities with 4 of the 4th cylindrical cavities, the 4th cylindrical cavity 4 with 3 of the 3rd cylindrical cavities, the 3rd cylindrical cavity 3 with 2 of second cylindrical cavities, second cylindrical cavity 2 and is coupled, and this adjacent coupled that is coupled as.With contiguous body 6 walls of first cylindrical cavity 1 on be processed with transverse holes, input 8 is installed in this transverse holes.With contiguous body 6 walls of the 5th cylindrical cavity 5 on be processed with transverse holes, output 9 is installed in this transverse holes.
The specifications and characteristics in various circular waveguides chamber sees the following form:
Can find out by table; In TM010 mould cylindrical cavity, TE111 mould cylindrical cavity, TE112 mould cylindrical cavity, TE110 mould cylindrical cavity and the TE011 mould cylindrical cavity; The Q value of TE011 mould cylindrical cavity is maximum; Therefore, first cylindrical cavity 1 in the utility model, second cylindrical cavity 2, the 3rd cylindrical cavity 3, the 4th cylindrical cavity 4 and the 5th cylindrical cavity 5 all adopt TE011 mould cylindrical cavity.
As shown in Figure 1, on the body 6 of the 4th cylindrical cavity 4 and 2 of second cylindrical cavities, be processed with and be communicated with window 7, make the 4th cylindrical cavity 4 and 2 of second cylindrical cavities be non-adjacent coupled together.What Fig. 1-1 showed is the response curve of this non-adjacent coupled filter of Fig. 1, and this response curve only has a transmission zero 10 on low frequency.
As shown in Figure 2, on the body 6 of the 5th cylindrical cavity 5 and 2 of second cylindrical cavities, be processed with and be communicated with window 7, make the 5th cylindrical cavity 5 and 2 of second cylindrical cavities be non-adjacent coupled together.What Fig. 2-1 showed is the response curve of this non-adjacent coupled filter of Fig. 2, and this response curve has two transmission zeros 10 on low frequency.
As shown in Figure 3, on the body 6 of the 5th cylindrical cavity 5 and 1 of first cylindrical cavity, be processed with and be communicated with window 7, make the 5th cylindrical cavity 5 and 1 of first cylindrical cavity be non-adjacent coupled together.What Fig. 3-1 showed is the response curve of this non-adjacent coupled filter of Fig. 3, and this response curve has three transmission zeros 10 on low frequency.
Can find out that by Fig. 1-1, Fig. 2-1 and Fig. 3-1 above-mentioned three microwave filters are asymmetric transmission zero, asymmetry response filter.
Claims (3)
1. the TE011 mould cylindrical cavity filter at many asymmetric zero points; Comprise body (6) and cover plate; Have first cylindrical cavity (1), second cylindrical cavity (2), the 3rd cylindrical cavity (3), the 4th cylindrical cavity (4) and the 5th cylindrical cavity (5) at least on body (6) one side adjacent with cover plate; Input (8) and output (9) are arranged on the wall of body (6), and this input, output are communicated with first cylindrical cavity (1) and the 5th cylindrical cavity (5) respectively; It is characterized in that first cylindrical cavity (1), second cylindrical cavity (2) and the 3rd cylindrical cavity (3) are on first straight line successively, the 4th cylindrical cavity (4) and the 5th cylindrical cavity (5) are on second straight line; First straight line and second straight line parallel, and the 4th cylindrical cavity (4) and the 3rd cylindrical cavity (3), second cylindrical cavity be triangularly arranged between (2), and the 5th cylindrical cavity (5) and second cylindrical cavity (2), first cylindrical cavity are triangularly arranged between (1); Make between cylindrical cavity of winning (1) and second cylindrical cavity (2), between second cylindrical cavity (2) and the 3rd cylindrical cavity (3), between the 3rd cylindrical cavity (3) and the 4th cylindrical cavity (4), be adjacent coupled between the 4th cylindrical cavity (4) and the 5th cylindrical cavity (5); Said first cylindrical cavity (1), second cylindrical cavity (2), the 3rd cylindrical cavity (3), the 4th cylindrical cavity (4) and the 5th cylindrical cavity (5) are TE011 mould cylindrical cavity, are non-adjacent coupled together between the 4th cylindrical cavity (4) and second cylindrical cavity (2).
2. the TE011 mould cylindrical cavity filter at a plurality of asymmetric zero points according to claim 1 is characterized in that being non-adjacent coupled together between the 5th cylindrical cavity (5) and second cylindrical cavity (2).
3. the TE011 mould cylindrical cavity filter at a plurality of asymmetric zero points according to claim 2 is characterized in that being non-adjacent coupled together between the 5th cylindrical cavity (5) and first cylindrical cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120254975 CN202601817U (en) | 2011-07-13 | 2011-07-13 | TE011 mode circular cavity filter having plurality of asymmetric zeros |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120254975 CN202601817U (en) | 2011-07-13 | 2011-07-13 | TE011 mode circular cavity filter having plurality of asymmetric zeros |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601817U true CN202601817U (en) | 2012-12-12 |
Family
ID=47319336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120254975 Expired - Fee Related CN202601817U (en) | 2011-07-13 | 2011-07-13 | TE011 mode circular cavity filter having plurality of asymmetric zeros |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403558A (en) * | 2011-07-13 | 2012-04-04 | 江苏贝孚德通讯科技股份有限公司 | TE011 mold circular cavity filter for a plurality of unsymmetrical zeros |
-
2011
- 2011-07-13 CN CN 201120254975 patent/CN202601817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403558A (en) * | 2011-07-13 | 2012-04-04 | 江苏贝孚德通讯科技股份有限公司 | TE011 mold circular cavity filter for a plurality of unsymmetrical zeros |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201063353Y (en) | Cavity filter with naught cavity | |
| CN102544650B (en) | Coaxial resonant cavity mixed coupling method | |
| CN102544649A (en) | One-cavity three-mode filter | |
| CN204905392U (en) | Integrated waveguide filter of dual 14 folding mould substrates | |
| CN105720331A (en) | Single-cavity three-mode band-pass duplexer based on microstrip feed gap coupling | |
| CN110190366B (en) | Miniaturized sectional waveguide ferrite phase shifter | |
| CN203839491U (en) | Waveguide filter based on electromagnetically induced transparency | |
| CN202601817U (en) | TE011 mode circular cavity filter having plurality of asymmetric zeros | |
| CN102403558A (en) | TE011 mold circular cavity filter for a plurality of unsymmetrical zeros | |
| CN203826521U (en) | Substrate integrated waveguide filter realizing cross coupling by utilizing microstrip lines | |
| CN206564313U (en) | A kind of annular housing wave filter stacked based on multilayer grooved dielectric-slab | |
| CN101604783A (en) | Compact type microwave cavity | |
| CN203134947U (en) | Filter and coupling structure of metal resonator and medium resonator | |
| CN203166048U (en) | Mixed-mode radio frequency/microwave band elimination filter | |
| CN202259650U (en) | Highly miniaturized substrate integrated waveguide resonator | |
| CN205621825U (en) | Three mould band -pass duplexers in single chamber based on gap coupling of microstrip feed | |
| CN201369383Y (en) | Compact microwave resonant cavity | |
| CN103956541B (en) | One utilizes microstrip line to realize cross-linked substrate integral wave guide filter | |
| CN106450618B (en) | Coupling structure of filter port and waveguide duplexer common port coupling structure | |
| CN104134840A (en) | Cross transverse electric-wall waveguide band-pass filter | |
| CN203895577U (en) | Band pass filter based on one third equilateral triangle substrate integration waveguide | |
| CN202395128U (en) | Dual-mode cavity filter with circular chamfers | |
| CN201877545U (en) | Microwave filter with multiple transmission zeros and no cross coupling fly rod | |
| CN101950825A (en) | Novel compact dual-mode band-pass filter | |
| CN106602189A (en) | Annular metal resonant cavity waveguide filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: TE011 mold circular cavity filter for a plurality of unsymmetrical zeros Effective date of registration: 20130730 Granted publication date: 20121212 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Pivotone Communication Technologies, Inc. Registration number: 2013990000524 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150824 Granted publication date: 20121212 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Pivotone Communication Technologies, Inc. Registration number: 2013990000524 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20200713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |