CN102306860A - Cavity body device and coupling structure of resonant channel and connecting port thereof - Google Patents
Cavity body device and coupling structure of resonant channel and connecting port thereof Download PDFInfo
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- CN102306860A CN102306860A CN201110175364A CN201110175364A CN102306860A CN 102306860 A CN102306860 A CN 102306860A CN 201110175364 A CN201110175364 A CN 201110175364A CN 201110175364 A CN201110175364 A CN 201110175364A CN 102306860 A CN102306860 A CN 102306860A
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Abstract
The invention discloses a coupling structure of a resonant channel and a connecting port. The resonant channel and the connecting port are arranged in a cavity body; a resonant column of the resonant channel near the connecting port realizes signal coupling with the connecting port; the resonant column is provided with a radial embedded hole groove along a column body of the resonant column; and a connecting conductor of the connecting port is arranged into the hole groove. The coupling structure provided by the invention is suitable for cavity body devices such as filters, duplexers, combiners, feeders and the like. The coupling structure has the obvious characteristics and effects of simplicity, easy realization, wide realizable port bandwidth, low requirements for assembly precision and processing precision, suitability for large-batch production and wide application range and can be used for designing various cavity body devices.
Description
[technical field]
The present invention relates to a kind of cavity devices, relate in particular to the coaxial coupled structure in resonance passage connectivity port that is applied in the cavity devices.
[background technology]
Cavity devices generally is provided with the resonance passage that is made up of some resonance posts and tuning screw rod, is passive product, and its concrete application at moving communicating field mainly comprises following product: filter, duplexer, loop, mixer etc.Various concrete application have its concrete and known purposes.For example, filter mainly is used for filtering interference signals at communication process, guarantees that simultaneously needed signal passes through with the loss of minimum.Adopt the cavity body filter that coaxial cable connects owing to have high Q value, low-loss, high power, low passive intermodulation and debug series of advantages such as simple, make its in modern times moving communicating field obtained using widely.
Along with the development of mobile communication, moving communicating field is divided into according to the difference of frequency range: CDMA, GSM, DCS, 3G (comprising: WCDMA, TD, CDMA2000), WLAN, LTE, frequency from 700MHz until 2700MHz.And can shared resource, reduce the application mode of the multisystem colocation site of system equipment cost to be used widely ultra-wide band filter and the mixer radio-frequency devices that is absolutely necessary.And, then needing the port coupling bandwidth (surpassing 1GHz in some cases) of non-constant width to the ultra broadband coaxial cavity filter, the port bandwidth of the coaxial cavity filter of existing structure is difficult to reach application requirements.
As shown in Figure 1; The I/O mode of the cavity devices of existing coaxial connection mainly is that to adopt silver-jacketed wire to connect cavity interior from radio frequency connector nearest resonance post 4 and connectivity port 6, realizes different port bandwidths through the height that thickness, shape and the said silver-jacketed wire 5 of adjusting silver-jacketed wire 5 welds on resonance post 4.For the very wide coaxial connection cavity devices of pass band width, adopt above-mentioned method for designing the silver-jacketed wire overstriking perhaps can only be replaced silver-jacketed wire with sheet metal, raise the height that silver-jacketed wire or sheet metal weld on the resonance post; But overstriking silver-jacketed wire or employing sheet metal will make silver-jacketed wire or sheet metal be not easy bending and molding, also will make product very responsive in assembling process simultaneously, be not easy to produce in enormous quantities; And as far as raising welding and assembling height; The height that can raise also can only be limited within the altitude range of resonance post; Even but welding and assembling height is lifted to the top of resonance post, and also be not enough in some cavity devices port bandwidth, this also possibly reduce the power capacity of this type of cavity devices simultaneously.
[summary of the invention]
The objective of the invention is the deficiency that exists to the above prior art, provide a kind of and in moving communicating field, be particularly suitable for cavity devices and can improve the port coupling bandwidth of cavity devices and widen a kind of resonance passage connectivity port coupled structure of range of application.
Another object of the present invention is to provide a kind of cavity devices that adopts above-mentioned coupled structure.
For achieving the above object, technical scheme of the present invention is:
Resonance passage of the present invention connectivity port coupled structure; This resonance passage and connectivity port are arranged in the cavity; Resonance passage realizes the signal coupling with its resonance post and this connectivity port near the connectivity port; Said resonance post is provided with the radially deep hole slot along its cylinder, and the bonding conductor of said connectivity port is inserted in this hole slot.
The end that said bonding conductor stretches into hole slot is provided with the thin end of protrusion, is beneficial to insert in the hole slot.Be arranged with the PTFE medium sleeve on the thin end of said protrusion, so that bonding conductor and resonance post are realized insulation.
For guaranteeing stable annexation, be threaded between said connectivity port and its bonding conductor.Screw is passed through on said cavity in described connectivity port.
Tuning for realizing, be furnished with tuning plug on the said resonance post.Said tuning plug is fastened on the cover plate of installing mutually with said cavity through metal nuts.
Preferable, said bonding conductor is cylindric.
Cavity devices of the present invention as one of any in the filter, duplexer, mixer, loop, is characterized in that it is provided with aforesaid resonance passage connectivity port coupled structure.
Compared with prior art, distinguishing feature of the present invention and effect are following: coupled structure of the present invention is simple and easy to realize, can realize the coupling bandwidth of non-constant width, to the precision of the precision of assembling and processing require lowly, be fit to very much produce in enormous quantities; Applied widely, the coupling bandwidth adjustment is flexible, can be used for designing multiple cavity devices.
[description of drawings]
Fig. 1 is the generalized section of the input/output unit structure of existing coaxial filter;
Fig. 2 is the generalized section of resonance passage of the present invention connectivity port coupled structure;
Fig. 3 is the three-dimensional installation diagram of resonance passage of the present invention connectivity port coupled structure.
[embodiment]
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed explanation.
Resonance passage of the present invention connectivity port coupled structure is used for being provided with the resonance passage that is made up of some resonance posts and the cavity devices of connectivity port, so that form filter, duplexer, mixer, loop etc.
Referring to Fig. 2 and Fig. 3, the resonance passage connectivity port coupled structure of cavity devices of the present invention by cavity 3, be fixedly mounted on resonance post 4, the bonding conductor 8 in said cavity 3 cavitys, connectivity port 6 and the tuning plug 1 that is installed on the said cavity 3 formed.Be furnished with tuning plug 1 on the said resonance post 4, adjust the frequency in resonance post chamber through regulating tuning plug 1.Said tuning plug 1 is fastened on the cover plate 9 through metal nuts 2.Said cover plate 9 is connected with cavity 3, forms closed cavity.
It is pointed out that in cavity devices the number of said resonance post 4 is not subjected to the restriction of present embodiment, comprise a plurality of so that be formed for carrying out the said resonance passage of radio signal transmission as the one of which that those skilled in the art should know this known features.
Said resonance post 4 is provided with the radially deep hole slot 10 along its cylinder, and an end of bonding conductor 8 is connected with connectivity port 6, and the other end stretches in the said hole slot 10 and forms the capacitives coupling with hole slot 10 affiliated resonance posts 4.Said resonance post 4 is near the resonance post of connectivity port 6 on physical distance; Said bonding conductor 8 can be columned coupling bar.Said bonding conductor 8 is provided with screwed hole with the end that said connectivity port 6 is connected, and said bonding conductor 8 is connected with double-screw bolt on the said connectivity port 6 through screwed hole.The end that said bonding conductor 8 stretches into hole slot 10 is provided with said hole slot 10 and is matching in shape but do not contact the thin end 11 of protrusion to realize coupling, and the thin end 11 of said protrusion stretches into realizes in the said hole slot 10 that bonding conductors 8 and signals between the resonance post 4 are coupled.For make bonding conductor 8 and resonance post 4 not direct physical be connected, on the thin end 11 of bonding conductor 8 protrusions, be arranged with a medium sleeve 7.Said medium sleeve 7 can be insulating properties and the good PTFE medium sleeve of durability, between the hole wall of the hole slot 10 of thin end 11 of bonding conductor 8 protrusion and resonance post 4.The said connectivity port 6 suitable screw of passing through are on said cavity 3.
The hole slot 10 that the coupling bandwidth of coupled structure of the present invention can be inserted 4 reservations of resonance posts through the length and the bonding conductor 8 of insertion resonance post 4 inner connecting conductors 8 is controlled from the height of said cavity 3 bottoms; The bonding conductor 8 that gos deep into resonance post 4 inside is long more; The more weak bandwidth that is coupled is narrow more; The hole slot of reserving 10 is high more from the bottom level of cavity 3, and the bandwidth of coupling is wide more.
In sum, the present invention has realized broader bandwidth and flexible adjustable cavity devices with simple structure, uses applicable to specific products such as filter, duplexer, mixer, loops.
Although the present invention describes with reference to specific embodiment, this description does not also mean that the present invention is constituted restriction.With reference to description of the invention, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (10)
1. resonance passage connectivity port coupled structure; This resonance passage and connectivity port are arranged in the cavity; Resonance passage realizes the signal coupling with its resonance post and this connectivity port near the connectivity port; It is characterized in that; Said resonance post is provided with the radially deep hole slot along its cylinder, and the bonding conductor of said connectivity port is inserted in this hole slot.
2. resonance passage according to claim 1 connectivity port coupled structure is characterized in that: the end that said bonding conductor stretches into hole slot is provided with a protrusion with said hole slot coupling and carefully holds, and the thin end of described protrusion stretches in the said hole slot.
3. resonance passage according to claim 2 connectivity port coupled structure is characterized in that: be arranged with the medium sleeve on the thin end of said protrusion.
4. resonance passage according to claim 3 connectivity port coupled structure is characterized in that: said medium sleeve is the PTFE medium sleeve.
5. according to any described resonance passage connectivity port coupled structure in the claim 1 to 4, it is characterized in that: be threaded between said connectivity port and its bonding conductor.
6. according to any described resonance passage connectivity port coupled structure in the claim 1 to 4, it is characterized in that: screw is passed through on said cavity in described connectivity port.
7. according to any described resonance passage connectivity port coupled structure in the claim 1 to 4, it is characterized in that: be furnished with tuning plug on the said resonance post.
8. resonance passage according to claim 7 connectivity port coupled structure, it is characterized in that: said tuning plug is fastened on the cover plate of installing mutually with said cavity through metal nuts.
9. according to any described resonance passage connectivity port coupled structure in the claim 1 to 4, it is characterized in that said bonding conductor integral body is cylindric.
10. cavity devices as one of any in filter, duplexer, mixer, the loop, is characterized in that it is provided with like any described resonance passage connectivity port coupled structure in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175364.XA CN102306860B (en) | 2011-06-27 | 2011-06-27 | Cavity body device and coupling structure of resonant channel and connecting port thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175364.XA CN102306860B (en) | 2011-06-27 | 2011-06-27 | Cavity body device and coupling structure of resonant channel and connecting port thereof |
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| Publication Number | Publication Date |
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| CN102306860A true CN102306860A (en) | 2012-01-04 |
| CN102306860B CN102306860B (en) | 2014-06-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785275A (en) * | 2017-02-17 | 2017-05-31 | 京信通信系统（中国）有限公司 | Double-deck chamber combiner and its public port device |
| DE102016117415A1 (en) | 2016-09-15 | 2018-03-15 | Kathrein Mobilcom Austria Gmbh | High-frequency filter with improved signal coupling or signal extraction |
| WO2018133335A1 (en) * | 2017-01-22 | 2018-07-26 | 深圳市国人射频通信有限公司 | Electric coupling port structure, and cavity filter |
| CN108417943A (en) * | 2018-05-23 | 2018-08-17 | 东莞市易讯时代通信有限公司 | A kind of manifold type combiner |
| CN109461998A (en) * | 2018-11-27 | 2019-03-12 | 苏州工业园区艺达精密机械有限公司 | Wideband combiner antenna opening blocking input coupling structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312355A (en) * | 2007-05-23 | 2008-11-26 | 京信通信系统（中国）有限公司 | DCS/WCDMA dual-frequency combiner and general dual-frequency combiner |
| CN201478428U (en) * | 2009-09-09 | 2010-05-19 | 西安空间无线电技术研究所 | Power combiner with filter property |
| CN202121037U (en) * | 2011-06-27 | 2012-01-18 | 京信通信系统（中国）有限公司 | Cavity device and resonance channel coupling port coupling structure thereof |
-
2011
- 2011-06-27 CN CN201110175364.XA patent/CN102306860B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312355A (en) * | 2007-05-23 | 2008-11-26 | 京信通信系统（中国）有限公司 | DCS/WCDMA dual-frequency combiner and general dual-frequency combiner |
| CN201478428U (en) * | 2009-09-09 | 2010-05-19 | 西安空间无线电技术研究所 | Power combiner with filter property |
| CN202121037U (en) * | 2011-06-27 | 2012-01-18 | 京信通信系统（中国）有限公司 | Cavity device and resonance channel coupling port coupling structure thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016117415A1 (en) | 2016-09-15 | 2018-03-15 | Kathrein Mobilcom Austria Gmbh | High-frequency filter with improved signal coupling or signal extraction |
| DE102016117415B4 (en) * | 2016-09-15 | 2019-10-31 | Kathrein Mobilcom Austria Gmbh | High-frequency filter with improved signal coupling or signal extraction |
| WO2018133335A1 (en) * | 2017-01-22 | 2018-07-26 | 深圳市国人射频通信有限公司 | Electric coupling port structure, and cavity filter |
| CN106785275A (en) * | 2017-02-17 | 2017-05-31 | 京信通信系统（中国）有限公司 | Double-deck chamber combiner and its public port device |
| CN106785275B (en) * | 2017-02-17 | 2020-11-06 | 京信通信技术(广州)有限公司 | Double-layer cavity combiner and public port device thereof |
| CN108417943A (en) * | 2018-05-23 | 2018-08-17 | 东莞市易讯时代通信有限公司 | A kind of manifold type combiner |
| CN109461998A (en) * | 2018-11-27 | 2019-03-12 | 苏州工业园区艺达精密机械有限公司 | Wideband combiner antenna opening blocking input coupling structure |
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| Publication number | Publication date |
|---|---|
| CN102306860B (en) | 2014-06-11 |
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Effective date of registration: 20200116 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
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Effective date of registration: 20230804 Address after: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Patentee after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |