CN103151589B - The combiner structure of cavity radio frequency device and adopt the cavity radio frequency device of this structure - Google Patents
The combiner structure of cavity radio frequency device and adopt the cavity radio frequency device of this structure Download PDFInfo
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- CN103151589B CN103151589B CN201310069818.4A CN201310069818A CN103151589B CN 103151589 B CN103151589 B CN 103151589B CN 201310069818 A CN201310069818 A CN 201310069818A CN 103151589 B CN103151589 B CN 103151589B
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Abstract
The present invention discloses a kind of combiner structure of cavity radio frequency device, comprise and be arranged on the first path in cavity and alternate path, described first path and alternate path close by one the conjunction road that road port realizes signal and export, this conjunction road port comprises port joint, the inner wire established in this port joint and the metal sleeve be set on this inner wire, insulating barrier is provided with between described inner wire and metal sleeve, wherein, described first path is realized by dielectric filter, it comprises at least one dielectric resonance, draw arc wire from described inner wire to be coupled with dielectric resonance of this conjunction road port of next-door neighbour, described alternate path is realized by metal coaxial filter, and it comprises at least one resonant column, draws the resonant column being close to this conjunction road port wire and described metal coaxial filter be electrically connected from described metal sleeve.The present invention also discloses a kind of cavity radio frequency device adopting above-mentioned combiner structure.Novel in structural design of the present invention, structure are simple, intermodulation is good, are suitable for batch production.
Description
Technical field
The present invention relates to a kind of signal combiner technology, particularly relate to the combiner structure of a kind of dielectric filter and metal coaxial filter and adopt the cavity radio frequency device of this structure.
Background technology
In present mobile communication technology, radio-frequency devices has become requisite important component part.Filter is as a kind of basic radio frequency unit, and a series of indexs such as its insertion loss, Out-of-band rejection, passive intermodulation and power capacity have important impact for the performance of complete machine.Traditional metal coaxial cavity filter is due to the reason of own loss, when limiting cavity size, very high quality factor (Q value) cannot be obtained, cause the index such as Out-of-band rejection, insertion loss to receive certain restriction, and the link such as the silver-plated process in metal surface also can produce certain impact to passive intermodulation index.
Dielectric filter have employed a kind of ceramic medium material of high q-factor, is a kind of novel filter with low insertion loss, high suppression, high intermodulation, the filter of Low Drift Temperature.Particularly dielectric resonance of TE pattern, its nonloaded Q is far away higher than traditional metal coaxial cavity harmonic oscillator, so the technical indicator performance of TE mode media filter also will be far superior to traditional metal filter, the temperature drift coefficient of TE mode media filter is very little, can keep excellent index performance under the limiting temperature of high/low temperature.
Usually multi-channel filter is comprised in modern passive radio frequency device, common a kind of application mode is exactly, comprise uplink and downlink two-way filter altogether, TE mode media harmonic oscillator is used to realize for the filter that technical requirement is strict, cheap metallic cavity filter for the use routine of index relative loose realizes, two-way filter performs difference in functionality respectively, but necessarily there is public conjunction road port, TE mode media harmonic oscillator is different from the electromagnetic field mode of metal coaxial cavity harmonic oscillator, processing mode conveniently cannot realize closing road, so how the conjunction road for the treatment of media filter and metal filter is exactly a problem demanding prompt solution.
Summary of the invention
The object of the invention is for overcoming above-mentioned problem, providing a kind of and realize the structure of dielectric filter and metal coaxial filter combiner and comprise the cavity radio frequency device of this combiner structure.
For reaching above technical purpose, the technical solution used in the present invention is as follows:
The combiner structure of cavity radio frequency device, comprise and be arranged on the first path in cavity and alternate path, described first path and alternate path close by one the conjunction road that road port realizes signal and export, described conjunction road port comprises port joint, the inner wire established in this port joint and the metal sleeve be set on this inner wire, insulating barrier is provided with between described inner wire and metal sleeve, wherein, described first path is realized by dielectric filter, described dielectric filter comprises at least one dielectric resonance, draw arc wire from described inner wire to be coupled with dielectric resonance of this conjunction road port of next-door neighbour, described alternate path is realized by metal coaxial filter, and described metal coaxial filter comprises at least one resonant column, draws the resonant column being close to this conjunction road port wire and described metal coaxial filter be electrically connected from described metal sleeve.
Particularly, described dielectric resonance is dielectric resonance of TE pattern.
Further, described arc wire and the sub-concentric of dielectric resonance are arranged.
Selectively, described arc wire and inner wire are of coupled connections or are welded to connect.The free-end of described arc wire is fixed in filter cavity by dielectric.Selectively, the free-end of described arc wire is fixed on described cavity bottom.More preferably, described cavity is provided with the spaced walls separating described first path and alternate path, and the free-end of described arc wire is fixed in described spaced walls.
Further, the wire in described alternate path is of coupled connections with described metal sleeve, is welded to connect or contacts connection.Wire in described alternate path and described resonant column are of coupled connections or are welded to connect.
More preferably, described first path and alternate path physical isolation.Described inner wire is through the cavity of described alternate path, and this inner wire end is arranged in the cavity of described first path.Described metal sleeve is set in described inner wire and is positioned on one section of the cavity of alternate path.
Cavity radio frequency device, it adopts the combiner structure of foregoing cavity radio frequency device.
Compared with prior art, the present invention has following advantage: the combiner structure of dielectric filter of the present invention and metal coaxial filter achieves in same cavity radio frequency device, TE mode media filter and metal coaxial cavity filter close the setting on road, thus achieve in same cavity radio frequency device can comprise independent dielectric filter and metal coaxial filter simultaneously, this invention extends the mentality of designing of cavity radio frequency device, improve cavity radio frequency device, especially the design level of filter; Its structural design is simple, and consistency is good, debugs very convenient, repeatedly need not tear lid open, enhance productivity, and ensure that excellent intermodulation performance, and is suitable for batch production.
Accompanying drawing explanation
Fig. 1 is the stereochemical structure exploded view of the embodiment of the combiner structure of cavity radio frequency device of the present invention.
Fig. 2 is the vertical view of the embodiment of the combiner structure of cavity radio frequency device of the present invention, and its cover plate is not shown.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, in the stereochemical structure exploded view of the embodiment of the combiner structure of cavity radio frequency device of the present invention, show the partial structurtes of the cavity devices adopting this kind of combiner structure, comprise and be contained in cavity 1 and cover plate 2 and cover dielectric filter 4 in the space of formation and metal coaxial filter 5 mutually, also comprise the conjunction road port 3 be arranged on described cavity 1 sidewall, export after the signal by described dielectric filter 4 and metal coaxial filter 5 is closed road.
With reference to figure 1 and Fig. 2, described dielectric filter 4 and metal coaxial filter 5 realize physical isolation by the spaced walls 11 in described cavity 1, to reduce the mutual interference of the signal of these two signal paths, in the present embodiment, the cavity of described metal coaxial filter 5 is near described conjunction road port 3, and the cavity of described dielectric filter 4 is arranged on the cavity side of described metal coaxial filter 5.Described dielectric filter 4 refers in particular to the dielectric filter adopting TE pattern, and comprise dielectric resonance of at least one the TE pattern be arranged in its signal path, it realizes signal by dielectric resonance 41 of the described conjunction road port 3 of next-door neighbour and closes road; Described metal coaxial filter 5 then comprises the coaxial resonant column of at least one metal, and similarly, it realizes signal by the resonant column 51 of the described conjunction road port 3 of next-door neighbour and closes road.
Described conjunction road port 3 comprises the inner wire 32 established in port joint 31, this port joint 31 and the metal sleeve 33 be set on this inner wire 32; Described inner wire 32 is drawn from port joint 31, through the cavity of described metal coaxial filter 5, arrive the cavity of described dielectric filter 4, wherein, this inner wire 32 one section of being exposed in described metal coaxial filter 5 cavity is arranged with described metal sleeve 33, be provided with insulating barrier (not shown) between this inner wire 32 and metal sleeve 33, the end of this inner wire 32 does not contact with described dielectric resonance 41 simultaneously.
The inner wire 32 of described conjunction road port 3 draws one section of arc wire 42 along its end in described dielectric filter 4 cavity, and the center of circle of described arc wire 42 overlaps with the center of circle of described dielectric resonance 41 cylinders or roughly overlaps, formation concentric structure; One end of this arc wire 42 and the end of inner wire 32 are of coupled connections or are welded to connect, the other end of this arc wire 42 dissociates, be fixed in the cavity of described dielectric filter 4 by dielectric 43, selectively, the free-end of this arc wire 42 is fixed on the cavity bottom of dielectric filter 4, more preferably, as shown in Figure 2, the free-end of this arc wire 42 is fixed in described spaced walls 11.The wire 52 that described metal coaxial filter 5 is drawn by a metal sleeve 33 from described conjunction road port 3 realizes being electrically connected with described conjunction road port 3, and particularly, this wire 52 is connected with described resonant column 51.One end of described wire 52 can by being of coupled connections, being welded to connect or contacting connection with metal sleeve 33, and the other end of this wire 52 and described resonant column 51 can by being of coupled connections or being welded to connect; Described connected mode can be selected according to concrete technical requirement.Described arc wire 42 and wire 52 be copper facing silver line preferably.
Described dielectric filter 4 has different working frequency range from metal coaxial filter 5, can not produce co-channel interference when therefore both close road, and its main source disturbed is that the distribution of port bandwidth brings.The opening direction of described arc wire 42, arc length, thickness and radius etc. all affect the port bandwidth of described dielectric filter 4, and such as, this arc wire 42 is thicker, nearer apart from described dielectric resonance 41, and the bandwidth assigned by dielectric filter 4 is wider; Level altitude, the length and thickness etc. of described wire 52 have a significant impact the port bandwidth of described metal coaxial filter 5, and such as, described wire 52 is highly higher, thicker, and the bandwidth assigned by described metal coaxial filter 5 is wider.Described arc wire 42 and the setting of wire 52 be mutually involve, interactional, the port bandwidth adjusted on any path inherently has an impact to the port bandwidth of an other path, therefore, described arc wire 42 needs repeatedly to debug with arranging of wire 52.
In sum, combiner novel in structural design, the structure of cavity radio frequency device of the present invention are simple, intermodulation is good, is suitable for batch production.
The present invention also provides a kind of cavity radio frequency device, includes but not limited to combiner device, filter, duplexer, and it adopts foregoing combiner structure, does not repeat them here.
Above-described embodiment is the present invention's preferably execution mode; but be not merely restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be all included within protection scope of the present invention.
Claims (13)
1. the combiner structure of cavity radio frequency device, comprise and be arranged on the first path in cavity and alternate path, described first path and alternate path close by one the conjunction road that road port realizes signal and export, described conjunction road port comprises port joint, the inner wire established in this port joint and the metal sleeve be set on this inner wire, insulating barrier is provided with between described inner wire and metal sleeve, it is characterized in that: described first path is realized by dielectric filter, described dielectric filter comprises at least one dielectric resonance, draw arc wire from described inner wire to be coupled with dielectric resonance of this conjunction road port of next-door neighbour, described alternate path is realized by metal coaxial filter, and described metal coaxial filter comprises at least one resonant column, draws the resonant column being close to this conjunction road port wire and described metal coaxial filter be electrically connected from described metal sleeve.
2. the combiner structure of cavity radio frequency device as claimed in claim 1, is characterized in that: described dielectric resonance is dielectric resonance of TE pattern.
3. the combiner structure of cavity radio frequency device as claimed in claim 2, is characterized in that: described arc wire and the sub-concentric of dielectric resonance are arranged.
4. the combiner structure of cavity radio frequency device as claimed in claim 3, is characterized in that: described arc wire and inner wire are of coupled connections or are welded to connect.
5. the combiner structure of cavity radio frequency device as claimed in claim 3, is characterized in that: the free-end of described arc wire be fixed on by dielectric belong to described dielectric filter cavity in.
6. the combiner structure of cavity radio frequency device as claimed in claim 5, is characterized in that: the free-end of described arc wire is fixed on the cavity bottom of described dielectric filter.
7. the combiner structure of cavity radio frequency device as claimed in claim 5, it is characterized in that: the cavity of the combiner structure of described cavity radio frequency device is provided with the spaced walls separating described first path and alternate path, and the free-end of described arc wire is fixed on described spaced walls and belongs on the side of described first path.
8. the combiner structure of cavity radio frequency device as claimed in claim 1, is characterized in that: the wire in described alternate path is of coupled connections with described metal sleeve, be welded to connect or contact connection.
9. the combiner structure of cavity radio frequency device as claimed in claim 1, is characterized in that: the wire in described alternate path and described resonant column are of coupled connections or are welded to connect.
10. the combiner structure of the cavity radio frequency device as described in claim 1-9 any one, is characterized in that: described first path and alternate path physical isolation.
The combiner structure of 11. cavity radio frequency devices as claimed in claim 10, is characterized in that: described inner wire is through the cavity of described alternate path, and this inner wire end is arranged in the cavity of described first path.
The combiner structure of 12. cavity radio frequency devices as claimed in claim 11, is characterized in that: described metal sleeve is set in described inner wire and is positioned on one section of the cavity of alternate path.
13. 1 kinds of cavity radio frequency devices, is characterized in that: it adopts the combiner structure of the cavity radio frequency device as described in claim 1-12 any one.
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| CN201310069818.4A CN103151589B (en) | 2013-03-05 | 2013-03-05 | The combiner structure of cavity radio frequency device and adopt the cavity radio frequency device of this structure |
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| CN201310069818.4A CN103151589B (en) | 2013-03-05 | 2013-03-05 | The combiner structure of cavity radio frequency device and adopt the cavity radio frequency device of this structure |
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| CN103151589B true CN103151589B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105633520B (en) * | 2016-03-01 | 2018-09-21 | 西南交通大学 | A kind of double frequency narrow-band bandpass dielectric 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 |
| WO2021012197A1 (en) * | 2019-07-23 | 2021-01-28 | 深圳市大富科技股份有限公司 | Filter, communication device, remote radio device, transceiving apparatus and tower amplifier |
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| CN1469665A (en) * | 2002-06-12 | 2004-01-21 | ���µ�����ҵ��ʽ���� | Dielectric filter, communication device and method for controlling resonance frequency |
| US6806791B1 (en) * | 2000-02-29 | 2004-10-19 | Radio Frequency Systems, Inc. | Tunable microwave multiplexer |
| CN202004129U (en) * | 2010-10-29 | 2011-10-05 | 合肥恒和通信有限公司 | CDMA (Code Division Multiple Access)/ GSM (Global System for Mobile Communication)/ WCDMA (Wideband Code Division Multiple Access) triple-frequency combiner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6919782B2 (en) * | 2001-04-04 | 2005-07-19 | Adc Telecommunications, Inc. | Filter structure including circuit board |
| CN101267219B (en) * | 2007-03-12 | 2011-10-26 | 京信通信系统（中国）有限公司 | Ultra-broadband dual-frequency channel merger |
| KR101388642B1 (en) * | 2007-06-26 | 2014-04-25 | 주식회사 케이엠더블유 | Filter combiner/divider |
| CN102064370A (en) * | 2009-11-16 | 2011-05-18 | 安徽信安通讯技术有限公司 | Mixed filtering combiner |
| CN202103148U (en) * | 2011-05-20 | 2012-01-04 | 京信通信系统（中国）有限公司 | Coupling structure of dielectric resonator and coaxial cavity resonator |
| CN203242727U (en) * | 2013-03-05 | 2013-10-16 | 京信通信系统（中国）有限公司 | A channel dividing and combining structure of a cavity radio frequency device and a cavity radio frequency device using the channel dividing and combining structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6806791B1 (en) * | 2000-02-29 | 2004-10-19 | Radio Frequency Systems, Inc. | Tunable microwave multiplexer |
| CN1469665A (en) * | 2002-06-12 | 2004-01-21 | ���µ�����ҵ��ʽ���� | Dielectric filter, communication device and method for controlling resonance frequency |
| CN202004129U (en) * | 2010-10-29 | 2011-10-05 | 合肥恒和通信有限公司 | CDMA (Code Division Multiple Access)/ GSM (Global System for Mobile Communication)/ WCDMA (Wideband Code Division Multiple Access) triple-frequency combiner |
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Effective date of registration: 20200119 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 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, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |
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