CN102306860B - 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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- CN102306860B CN102306860B CN201110175364.XA CN201110175364A CN102306860B CN 102306860 B CN102306860 B CN 102306860B CN 201110175364 A CN201110175364 A CN 201110175364A CN 102306860 B CN102306860 B CN 102306860B
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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 being applied in cavity devices.
[background technology]
Cavity devices is generally provided with the resonance passage being made up of some resonant columns and tuning screw, 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 is mainly used to filtering interference signals at communication process, ensures that needed signal passes through with minimum loss simultaneously.Adopt the cavity body filter of coaxial cable connection owing to thering is high Q value, low-loss, high power, low passive intermodulation and debugging the series of advantages such as simple, it is widely used in present mobile communication field.
Along with the development of mobile communication, moving communicating field according to the different demarcation of frequency range is: CDMA, GSM, DCS, 3G (comprising: WCDMA, TD, CDMA2000), WLAN, LTE, frequency is 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 for ultra broadband coaxial cavity filter, needing the port coupling bandwidth (exceeding in some cases 1GHz) of non-constant width, 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 is mainly to adopt silver-jacketed wire to connect cavity interior from the nearest resonant column 4 of radio frequency connector and connectivity port 6, and the height welding on resonant column 4 by thickness, shape and the described silver-jacketed wire 5 of adjustment silver-jacketed wire 5 is realized different port bandwidths.For the very wide coaxial connection cavity devices of pass band width, adopt the above-mentioned method for designing can only be by silver-jacketed wire overstriking, or replace silver-jacketed wire with sheet metal, raise the height that silver-jacketed wire or sheet metal weld on resonant column; 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 for raising welding and assembling height, within the height that can raise also can only be limited in the altitude range of resonant column, even but welding and assembling height is lifted to the top of resonant column, and be also inadequate in some cavity devices upper port bandwidth, this also may reduce the power capacity of this type of cavity devices simultaneously.
[summary of the invention]
The object of the invention is the deficiency existing for 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 cavity, resonance passage realizes signal coupling with it near the resonant column of connectivity port and this connectivity port, described resonant column is provided with the radially deep hole slot along its cylinder, and the bonding conductor of described connectivity port is inserted in this hole slot.
One end that described bonding conductor stretches into hole slot is provided with protrusion taper end, is beneficial to insert in hole slot.In described protrusion taper end, be arranged with PTFE medium sleeve, so that bonding conductor and resonant column are realized insulation.
For guaranteeing stable annexation, between described connectivity port and its bonding conductor, be threaded.Described connectivity port is fixed by screws on described cavity.
Tuning for realizing, on described resonant column, be furnished with tuning plug.Described tuning plug is fastened on the cover plate of installing mutually with described cavity by metal nuts.
Preferably, described bonding conductor is cylindric.
Cavity devices of the present invention, as one of any in 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 as follows: coupled structure of the present invention is simple and easy to realize, and can realize the coupling bandwidth of non-constant width, and requiring of the precision to assembling and the precision of processing is low, are applicable to very much producing in enormous quantities; Applied widely, coupling bandwidth flexible adjustment, can be used for designing multiple cavity devices.
[brief description of the 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 the drawings and specific embodiments, the present invention is further detailed explanation.
Resonance passage of the present invention connectivity port coupled structure is for being provided with the resonance passage that is made up of some resonant columns and the cavity devices of connectivity port, so that shaping 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 resonant column 4, the bonding conductor 8 in described cavity 3 cavitys, connectivity port 6 and the tuning plug 1 being arranged on described cavity 3 forms.On described resonant column 4, is furnished with tuning plug 1, by regulating tuning plug 1 to adjust the frequency in resonant column chamber.Described tuning plug 1 is fastened on cover plate 9 by metal nuts 2.Described cover plate 9 is connected with cavity 3, forms closed cavity.
It is pointed out that in cavity devices, the number of described resonant column 4 is not subject to the restriction of the present embodiment, and it generally comprises multiple to be formed for carrying out the described resonance passage of radio signal transmission, and those skilled in the art should know this known features.
On described resonant column 4, be provided with the radially deep hole slot 10 along its cylinder, one end of bonding conductor 8 is connected with connectivity port 6, and the resonant column 4 that the other end stretches in described hole slot 10 and under hole slot 10 forms capacitive coupling.Described resonant column 4 is resonant columns of the most close connectivity port 6 in physical distance; Described bonding conductor 8 can be columned coupling bar.Described bonding conductor 8 is provided with screwed hole with one end that described connectivity port 6 is connected, and described bonding conductor 8 is by the Stud connection on screwed hole and described connectivity port 6.One end that described bonding conductor 8 stretches into hole slot 10 is provided with described hole slot 10 and is matching in shape but do not contacting to realize the protrusion taper end 11 of coupling, and described protrusion taper end 11 stretches into the interior signal coupling of realizing between bonding conductor 8 and resonant column 4 of described hole slot 10.For make bonding conductor 8 and resonant column 4 not direct physical be connected, protrude and in taper end 11, be arranged with a medium sleeve 7 at bonding conductor 8.Described medium sleeve 7 can be insulating properties and the good PTFE medium sleeve of durability, protrudes between the hole wall of hole slot 10 of taper end 11 and resonant column 4 at bonding conductor 8.Described connectivity port 6 is suitable to be fixed by screws on described cavity 3.
The coupling bandwidth of coupled structure of the present invention can be inserted the reserved hole slot of resonant column 4 10 by the length of insertion resonant column 4 inner connecting conductors 8 and bonding conductor 8 and control from the height of described cavity 3 bottoms, the bonding conductor 8 that gos deep into resonant column 4 inside is longer, the more weak bandwidth that is coupled is narrower, reserved hole slot 10 is higher from the bottom level of cavity 3, and the bandwidth of coupling is wider.
In sum, the present invention has realized broader bandwidth and flexible adjustable cavity devices with simple structure, applicable to specific product application such as filter, duplexer, mixer, loops.
Although the present invention describes with reference to specific embodiment, this description not meaning that is construed as limiting the present invention.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 affiliated claim limited range.
Claims (9)
1. a resonance passage connectivity port coupled structure, this resonance passage is arranged in cavity, this connectivity port is arranged at chamber outer wall, resonance passage realizes signal coupling with it near the resonant column of connectivity port and this connectivity port, it is characterized in that, described resonant column is provided with the radially deep hole slot along its cylinder, the bonding conductor of described connectivity port is inserted in this hole slot to realize the capacitive coupling of bonding conductor and described resonant column, one end that described bonding conductor stretches into hole slot is provided with a protrusion taper end being coupled with described hole slot, described protrusion taper end stretches in described hole slot.
2. resonance passage according to claim 1 connectivity port coupled structure, is characterized in that: in described protrusion taper end, be arranged with medium sleeve.
3. resonance passage according to claim 2 connectivity port coupled structure, is characterized in that: described medium sleeve is PTFE medium sleeve.
4. according to the resonance passage connectivity port coupled structure described in any one in claims 1 to 3, it is characterized in that: between described connectivity port and its bonding conductor, be threaded.
5. according to the resonance passage connectivity port coupled structure described in any one in claims 1 to 3, it is characterized in that: described connectivity port is fixed by screws on described cavity.
6. according to the resonance passage connectivity port coupled structure described in any one in claims 1 to 3, it is characterized in that: on described resonant column, be furnished with tuning plug.
7. resonance passage according to claim 6 connectivity port coupled structure, is characterized in that: described tuning plug is fastened on the cover plate of assembling mutually with described cavity by metal nuts.
8. according to the resonance passage connectivity port coupled structure described in any one in claims 1 to 3, it is characterized in that, described bonding conductor entirety is cylindric.
9. a cavity devices, as one of any in filter, duplexer, mixer, loop, is characterized in that, it is provided with resonance passage connectivity port coupled structure as claimed in any of claims 1 to 8 in one of claims.
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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| CN102306860A CN102306860A (en) | 2012-01-04 |
| CN102306860B true CN102306860B (en) | 2014-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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| CN101312355B (en) * | 2007-05-23 | 2012-05-09 | 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 |
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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. |
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