CN1776958A - Cavity filter with adjustable capacitive coupling structure - Google Patents
Cavity filter with adjustable capacitive coupling structure Download PDFInfo
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- CN1776958A CN1776958A CN 200510061735 CN200510061735A CN1776958A CN 1776958 A CN1776958 A CN 1776958A CN 200510061735 CN200510061735 CN 200510061735 CN 200510061735 A CN200510061735 A CN 200510061735A CN 1776958 A CN1776958 A CN 1776958A
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- 230000008878 coupling Effects 0.000 title claims abstract description 30
- 238000010168 coupling process Methods 0.000 title claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 44
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
The filter includes case body. Resonant cavity is built inside the case body. A slotopening is made on the dividing wall between not adjacent concentric resonators needed capacitance to be coupled. A tunable capacitance coupling module is setup in the slotopening. The module includes medium screw, metal piece. Through subassembly of nut and gasket unit, the upper end of the medium screw is fixed on the cover board; and the lower end of the medium screw is on the slotopening. A sheet metal is fixed on lower end of the medium screw. Being extended out of the dividing wall, the sheet metal is folded down. Useful effects of the invention are: (1) since the structure is movable up and down, thus, range of tunable capacitance coupling strength of not adjacent cavities is increased; (2) lowering tuning difficulties and shortening tuning time; (3) avoiding abrasion of screw between cover board and cavity caused by opening cover board for many times; (4) raising performance of insertion loss.
Description
Technical field
The present invention relates to radio frequency and cavity filter in the wireless communication field, especially a kind of cavity body filter of the band adjustable capacitive coupling structure of can be easily non-adjacent chamber capacitive coupling intensity being regulated on a large scale.
Background technology
In the mobile communication cavity body filter, capacitive coupling design in non-adjacent chamber is a conventional means.It can improve the outer selectivity of filter band effectively.Non-adjacent chamber capacitive coupling structure is existing at present a lot.But the adjusting of most capacitive coupling intensity is very difficult.Common regulative mode has: 1, open filter cover board and regulate, waste time and energy.2, open two holes on the corresponding cover plate of each capacitive coupling and regulate, stick metal tape sticker sheet after mixing up, but the debugging scope is little.
Summary of the invention
The present invention will solve present cavity body filter in the capacitive coupling debug process of non-adjacent chamber, adjustable range is little, the debugging adjustment of need repeatedly uncapping, the problem that wastes time and energy provides a kind of cavity body filter of the band adjustable capacitive coupling structure of debugging simple and fast and can regulating in a big way.
The present invention solves the technical scheme that its technical problem adopts: the cavity body filter of this band adjustable capacitive coupling structure, comprise housing, have resonant cavity in the housing, on the dividing wall between two capacity coupled non-adjacent coaxial resonant cavities of needs, open a slotted eye, be provided with a tunable capacitor coupling assembly in the slotted eye, this tunable capacitor coupling assembly comprises medium Luo bar, sheet metal; Medium Luo bar upper end is fixed on the cover board by the female gasket assembly of Luo, and its lower end is positioned at slotted eye, and sheet metal is fixed in medium Luo bar lower end, and dividing wall and bending are downwards stretched out in the two ends of sheet metal.
The present invention can be further perfect by following manner:
The below of sheet metal is lined with the medium pad, and this medium pad is between sheet metal and medium Luo bar.
Medium Luo bar lower end has annular groove, and a side of medium pad, sheet metal has medium pad draw-in groove, sheet metal draw-in groove, and medium pad, sheet metal are positioned at annular groove, and is connected on the medium Luo bar by medium pad draw-in groove, sheet metal draw-in groove.
The medium pad has the buckling groove that is complementary with sheet metal, and sheet metal is connected on the medium pad.
The effect that the present invention is useful is: 1) because this structure can move up and down, the non-adjacent chamber capacitive coupling strength range that can debug is obviously increased; 2) because the non-adjacent chamber capacitive coupling strength range of this Adjustable structure examination obviously increases, obviously reduce debugging difficulty, shortened debug time, improved debugging efficiency; 3) avoided repeatedly uncapping to the wearing and tearing of cavity screw.4) the cover plate Insertion Loss Performance And Reliability that need not punch and improve cavity body filter.
Description of drawings
Fig. 1 is the main cross-sectional view of looking of the present invention;
Fig. 2 is the main TV structure schematic diagram of tunable capacitor coupling assembly of the present invention;
Fig. 3 is the plan structure schematic diagram of tunable capacitor coupling assembly of the present invention;
Fig. 4 is a medium Luo bar structural representation of the present invention;
Fig. 5 is the plan structure schematic diagram of medium pad of the present invention;
Fig. 6 is the side-looking structural representation of medium pad of the present invention;
Fig. 7 is the main TV structure schematic diagram of sheet metal of the present invention;
Fig. 8 is the plan structure schematic diagram of sheet metal of the present invention;
Fig. 9 is the perspective view of cylindrical cavity filter of the present invention;
Figure 10 is the perspective view of side's cavity filter of the present invention.
Description of reference numerals: 1-medium Luo bar, 1-1-annular groove, 2-medium pad, 2-1-medium pad draw-in groove, 3-sheet metal, 3-1-sheet metal draw-in groove, 4-dividing wall, 5-housing, 6-resonant cavity, the female gasket assembly of 7-Luo, 8-slotted eye.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in the figure, the cavity body filter of this band adjustable capacitive coupling structure, comprise housing 5, have resonant cavity 6 in the housing 5, on the dividing wall 4 between two capacity coupled non-adjacent coaxial resonant cavities 6 of needs, open a slotted eye 8, be provided with a tunable capacitor coupling assembly in the slotted eye 8, this tunable capacitor coupling assembly comprises medium Luo bar 1, sheet metal 3; Medium Luo bar 1 is made of dielectric material, and the upper end has the Luo line, is to be linked to each other by one section thinner cylinder in the middle of bottom and the upper end Luo line.Medium Luo bar 1 upper end is fixed on the cover plate 5-1 by the female gasket assembly 7 of Luo, and its lower end is positioned at slotted eye 8, and sheet metal 3 is fixed in medium Luo bar 1 lower end, and dividing wall 4 and bending are downwards stretched out in the two ends of sheet metal 3.The below of sheet metal 3 is lined with medium pad 2, and this medium pad 2 is between sheet metal 3 and medium Luo bar 1.Luo bar 1 lower end has annular groove 1-1, one side of medium pad 2, sheet metal 3 has medium pad draw-in groove 2-1, sheet metal draw-in groove 3-1, medium pad 2, sheet metal 3 are positioned at annular groove 1-1, and are connected on the medium Luo bar 1 by medium pad draw-in groove 2-1, sheet metal draw-in groove 3-1.Medium pad 2 has the buckling groove 2-2 that is complementary with sheet metal 3, and described sheet metal 3 is connected on the medium pad 2, makes that sheet metal 3 only can move at above-below direction in the up-down adjustment process.Medium Luo bar 1 adopts interference fits between medium pad 2 and sheet metal 3 threes.
Because domestic also do not have an aforesaid tunable capacitor coupling assembly device, above embodiment only be the special case explanation of opinion of the present invention, and every medium Luo bar 1, certain distortion example of medium pad 2 and sheet metal 3 all belong to the scope that support the present invention advocates.
The present invention is simple and reasonable, and is easy to operate, can regulate on a large scale non-adjacent chamber capacitive coupling intensity easily.
Claims (4)
1, a kind of cavity body filter with adjustable capacitive coupling structure, comprise housing (5), it is characterized in that: have resonant cavity (6) in the housing (5), on the dividing wall (4) between two capacity coupled non-adjacent coaxial resonant cavities of needs (6), open a slotted eye (8), be provided with a tunable capacitor coupling assembly in the slotted eye (8), this tunable capacitor coupling assembly comprises medium Luo bar (1), sheet metal (3); Medium Luo bar (1) upper end is fixed on the cover plate (5-1) by the female gasket assembly of Luo (7), and its lower end is positioned at slotted eye (8), and sheet metal (3) is fixed in medium Luo bar (1) lower end, and dividing wall (4) and bending are downwards stretched out in the two ends of sheet metal (3).
2, the cavity body filter of band adjustable capacitive coupling structure according to claim 1 is characterized in that: the below of described sheet metal (3) is lined with medium pad (2), and this medium pad (2) is positioned between sheet metal (3) and the medium Luo bar (1).
3, the cavity body filter of band adjustable capacitive coupling structure according to claim 2, it is characterized in that: described medium Luo bar (1) lower end has annular groove (1-1), one side of described medium pad (2), sheet metal (3) has medium pad draw-in groove (2-1), sheet metal draw-in groove (3-1), medium pad (2), sheet metal (3) are positioned at annular groove (1-1), and are connected on the medium Luo bar (1) by medium pad draw-in groove (2-1), sheet metal draw-in groove (3-1).
4, according to the cavity body filter of claim 2 or 3 described band adjustable capacitive coupling structures, it is characterized in that: described medium pad (2) has the buckling groove (2-2) that is complementary with sheet metal (3), and described sheet metal (3) is connected on the medium pad (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100617356A CN100364169C (en) | 2005-11-28 | 2005-11-28 | Cavity filter with adjustable capacitive coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100617356A CN100364169C (en) | 2005-11-28 | 2005-11-28 | Cavity filter with adjustable capacitive coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1776958A true CN1776958A (en) | 2006-05-24 |
| CN100364169C CN100364169C (en) | 2008-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100617356A Active CN100364169C (en) | 2005-11-28 | 2005-11-28 | Cavity filter with adjustable capacitive coupling structure |
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| Country | Link |
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| CN (1) | CN100364169C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820091A (en) * | 2010-04-29 | 2010-09-01 | 网拓(上海)通信技术有限公司 | Adjustable cavity filter |
| CN102354601A (en) * | 2011-05-20 | 2012-02-15 | 深圳市大富科技股份有限公司 | Structural capacitor, connector and communication equipment using connector |
| CN102361117A (en) * | 2011-09-29 | 2012-02-22 | 武汉虹信通信技术有限责任公司 | Capacitive cross coupling flying bar and coaxial cavity resonator thereof |
| CN103441317A (en) * | 2013-09-05 | 2013-12-11 | 宁波泰立电子科技有限公司 | Cavity filter with rotation adjustable loop |
| CN103518287A (en) * | 2013-04-27 | 2014-01-15 | 华为技术有限公司 | Cavity filter |
| US10403957B2 (en) | 2017-03-23 | 2019-09-03 | Nanning Fugui Precision Industrial Co., Ltd. | Cavity filter |
| CN110534857A (en) * | 2019-07-26 | 2019-12-03 | 苏州诺泰信通讯有限公司 | A kind of adjustable capacitive coupling structure |
| US11133567B2 (en) | 2019-09-30 | 2021-09-28 | Nokia Shanghai Bell Co., Ltd. | Capacitive coupling tuner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594767B (en) * | 2013-11-23 | 2015-10-21 | 中国电子科技集团公司第三十八研究所 | A kind of integrated cavity body filter |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836875A (en) * | 1973-01-17 | 1974-09-17 | Ferranti Ltd | Microwave limiter having variable capacitance diode in tuned cavity |
| JPS57155803A (en) * | 1981-03-23 | 1982-09-27 | Nec Corp | Band pass filter |
| FI88979C (en) * | 1990-12-17 | 1993-07-26 | Telenokia Oy | highfrequency bandpass filter |
| US5220300A (en) * | 1992-04-15 | 1993-06-15 | Rs Microwave Company, Inc. | Resonator filters with wide stopbands |
| JPH05304403A (en) * | 1992-04-27 | 1993-11-16 | Nec Corp | Microwave bandpass filter |
| JPH0715208A (en) * | 1993-06-25 | 1995-01-17 | Kokusai Electric Co Ltd | Polarized band pass filter |
| AUPO076796A0 (en) * | 1996-07-01 | 1996-07-25 | Jacobs, Ian Orde Michael | Injection moulding |
| FI973842A (en) * | 1997-09-30 | 1999-03-31 | Fertron Oy | A coaxial resonator |
| AU1564699A (en) * | 1997-12-11 | 1999-06-28 | Lk-Products Oy | Resonator structure |
| JP3140736B2 (en) * | 1998-07-03 | 2001-03-05 | 日本電業工作株式会社 | Group delay time compensation type band pass filter |
| ITSO20010002A1 (en) * | 2001-05-18 | 2002-11-18 | Comtech S R L | MINIMUM ORDER FILTER WITH CAVITY COUPLED FOR UHF TELEVISION CHANNELS. |
| CN2847557Y (en) * | 2005-11-28 | 2006-12-13 | 浙江三维通信股份有限公司 | Chamber filter with adjustable capacitor coupling structure |
-
2005
- 2005-11-28 CN CNB2005100617356A patent/CN100364169C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820091A (en) * | 2010-04-29 | 2010-09-01 | 网拓(上海)通信技术有限公司 | Adjustable cavity filter |
| CN101820091B (en) * | 2010-04-29 | 2013-07-03 | 罗森伯格（上海）通信技术有限公司 | Adjustable cavity filter |
| CN102354601A (en) * | 2011-05-20 | 2012-02-15 | 深圳市大富科技股份有限公司 | Structural capacitor, connector and communication equipment using connector |
| CN102361117A (en) * | 2011-09-29 | 2012-02-22 | 武汉虹信通信技术有限责任公司 | Capacitive cross coupling flying bar and coaxial cavity resonator thereof |
| CN103518287A (en) * | 2013-04-27 | 2014-01-15 | 华为技术有限公司 | Cavity filter |
| CN103441317A (en) * | 2013-09-05 | 2013-12-11 | 宁波泰立电子科技有限公司 | Cavity filter with rotation adjustable loop |
| CN103441317B (en) * | 2013-09-05 | 2015-07-15 | 宁波泰立电子科技有限公司 | Cavity filter with rotation adjustable loop |
| US10403957B2 (en) | 2017-03-23 | 2019-09-03 | Nanning Fugui Precision Industrial Co., Ltd. | Cavity filter |
| CN110534857A (en) * | 2019-07-26 | 2019-12-03 | 苏州诺泰信通讯有限公司 | A kind of adjustable capacitive coupling structure |
| CN110534857B (en) * | 2019-07-26 | 2024-04-16 | 苏州诺泰信通讯有限公司 | Adjustable capacitive coupling structure |
| US11133567B2 (en) | 2019-09-30 | 2021-09-28 | Nokia Shanghai Bell Co., Ltd. | Capacitive coupling tuner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100364169C (en) | 2008-01-23 |
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Owner name: SANWEI COMMUNICATION CO., LTD. ADDRESS Free format text: FORMER OWNER: SANWEI COMMUNICATION CO., LTD., ZHEJIANG ADDRESS Effective date: 20081121 |
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Effective date of registration: 20081121 Address after: No. 581, Torch Road, Zhejiang, Hangzhou Patentee after: Sunwave Communication Co., Ltd. Address before: No. 92 Huaxing Road, Hangzhou, Zhejiang, China Patentee before: 3-D Communication Co., Ltd., Zhejiang |
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| ASS | Succession or assignment of patent right |
Owner name: SANWEI COMMUNICATION CO., LTD. Free format text: FORMER OWNER: SANWEI COMMUNICATION CO., LTD., ZHEJIANG Effective date: 20081121 |