CN203242727U - 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 - Google Patents
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 Download PDFInfo
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- CN203242727U CN203242727U CN 201320100176 CN201320100176U CN203242727U CN 203242727 U CN203242727 U CN 203242727U CN 201320100176 CN201320100176 CN 201320100176 CN 201320100176 U CN201320100176 U CN 201320100176U CN 203242727 U CN203242727 U CN 203242727U
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- frequency device
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Abstract
The utility model discloses a channel dividing and combining structure of a cavity radio frequency device. The channel dividing and combining structure comprises a first channel and a second channel disposed in a cavity. The combined output of signals of the first channel and the second channel is achieved through a channel combining port. The channel combining port comprises a port connector, a connector inner conductor, and a metallic sleeve sleeved on the inner conductor. An insulating layer is disposed between the inner conductor and the metallic sleeve. The first channel is achieved by a medium filter and comprises at least one medium harmonic oscillator. An arc wire is led from the inner conductor and is coupled to the medium harmonic oscillator adjacent to the channel combining port. The second channel is achieved by a metallic coaxial filter and comprises at least one resonance column. A wire is led from the metallic sleeve and is electrically connected with the resonance column which is in the metallic coaxial filter and which is adjacent to the channel combining port. The utility model also provides a cavity radio frequency device using the above channel dividing and combining structure. The channel dividing and combining structure has characteristics of novel structural design, simple structure, good intermodulation performance, and adaptability to batch production.
Description
Technical field
The utility model relates to a kind of signal combiner/technology, relates in particular to the combiner/structure of a kind of dielectric filter and metal coaxial filter and adopts 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 owing to the reason of own loss, in the situation that limits cavity size, can't obtain very high quality factor (Q value), cause the indexs such as Out-of-band rejection, insertion loss to be subject to certain restriction, and the link such as the silver-plated processing in metal surface also can produce certain impact to the passive intermodulation index.
Dielectric filter has adopted a kind of ceramic medium material of high Q value, is a kind of novel filter with low insertion loss, high inhibition, high intermodulation, the filter of Low Drift Temperature.Particularly the dielectric resonance of TE pattern is sub, its nonloaded Q is higher than traditional metal coaxial cavity harmonic oscillator far away, so the technical indicator performance of TE pattern dielectric filter also will be far superior to traditional metal filter, it is very little that the temperature of TE pattern dielectric filter is floated coefficient, can keep good index performance under the limiting temperature of high low temperature.
Usually comprise multi-channel filter in the modern passive radio frequency device, common a kind of application mode is exactly, comprise altogether two-way filter of uplink and downlink, realize with TE pattern dielectric resonance for the filter that technical requirement is strict, realize for the cheap metallic cavity filter with conventional that index is relatively loose, two-way filter is carried out respectively difference in functionality, but the public road port that closes is arranged necessarily, TE pattern dielectric resonance is different from the electromagnetic field mode of metal coaxial cavity harmonic oscillator, to realize closing the road according to the processing mode of routine, so how the road of closing for the treatment of media filter and metal filter is exactly a problem demanding prompt solution.
The utility model content
The purpose of this utility model is for overcoming above-mentioned problem, a kind of cavity radio frequency device of realizing the structure of dielectric filter and metal coaxial filter combiner/and comprising this combiner/structure being provided.
For reaching above technical purpose, the technical solution adopted in the utility model is as follows:
The combiner/structure of cavity radio frequency device, comprise the first path and the alternate path that are arranged in the cavity, described the first path and alternate path are exported by a road of closing of closing road port realization signal, the described road port that closes comprises port joint, the inner wire of establishing in this port joint and the metal sleeve that is set on this inner wire, be provided with insulating barrier between described inner wire and metal sleeve, wherein, described the first path is realized by dielectric filter, described dielectric filter comprises at least one dielectric resonance, and this closes the dielectric resonance coupling of road port to draw arc wire and next-door neighbour from described inner wire; Described alternate path realizes that by the metal coaxial filter described metal coaxial filter comprises at least one resonant column, draws from described metal sleeve and is close to resonant column electric connection that this closes road port wire and the described metal coaxial filter.
Particularly, described dielectric resonance dielectric resonance that is the TE pattern.
Further, the sub-concentric setting of described arc wire and dielectric resonance.
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 the 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 of separating described the first path and alternate path, and the free-end of described arc wire is fixed on the described spaced walls.
Further, the wire in the described alternate path is of coupled connections, is welded to connect or contact with described metal sleeve and is connected.Wire in the described alternate path and described resonant column are of coupled connections or are welded to connect.
More preferably, described the first path and alternate path physical isolation.Described inner wire passes the cavity of described alternate path, and this inner wire end is arranged in the cavity of described the first path.Described metal sleeve is set on a section of cavity that described inner wire is positioned at alternate path.
Cavity radio frequency device, it adopts the combiner/structure of foregoing cavity radio frequency device.
Compared with prior art, the utlity model has following advantage: the combiner/structure of the utility model dielectric filter and metal coaxial filter has realized in same cavity radio frequency device, TE pattern dielectric filter and metal coaxial cavity filter close the setting on road, thereby realized to comprise simultaneously independent dielectric filter and metal coaxial filter in the same cavity radio frequency device, this utility model has been expanded the mentality of designing of cavity radio frequency device, promoted cavity radio frequency device, especially the design level of filter; Its structural design is simple, and high conformity is debugged very conveniently, needn't repeatedly tear lid open, enhances productivity, and has guaranteed good intermodulation performance, and is suitable for batch production.
Description of drawings
Fig. 1 is the stereochemical structure exploded view of embodiment of the combiner/structure of the utility model cavity radio frequency device.
Fig. 2 is the vertical view of embodiment of the combiner/structure of the utility model cavity radio frequency device, and its cover plate is not shown.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Please refer to Fig. 1, in the stereochemical structure exploded view of the embodiment of the combiner/structure of the utility model cavity radio frequency device, show the partial structurtes of the cavity devices that adopts this kind combiner/structure, comprise the dielectric filter 4 and the metal coaxial filter 5 that are contained in the space that cavity 1 and cover plate 2 cover formation mutually, also comprise being arranged on and close road port 3 on described cavity 1 sidewall, export after being used for to close the road by the signal of described dielectric filter 4 and metal coaxial filter 5.
With reference to figure 1 and Fig. 2, described dielectric filter 4 and metal coaxial filter 5 are realized physical isolation by the spaced walls 11 in the described cavity 1, phase mutual interference with the signal that reduces these two signal paths, in the present embodiment, the cavity of described metal coaxial filter 5 is near the described road port 3 that closes, and the cavity of described dielectric filter 4 is arranged on the cavity side of described metal coaxial filter 5.Described dielectric filter 4 is to refer in particular to the dielectric filter that adopts the TE pattern, comprises dielectric resonance of at least one the TE pattern that is arranged in its signal path, and it realizes that by being close to described dielectric resonance 41 that closes road port 3 signal closes the road; Described metal coaxial filter 5 then comprises the coaxial resonant column of at least one metal, and similarly, it realizes that by being close to the described resonant column 51 that closes road port 3 signal closes the road.
The described road port 3 that closes comprises the inner wire 32 of establishing in port joint 31, this port joint 31 and is set in metal sleeve 33 on this inner wire 32; Described inner wire 32 is drawn from port joint 31, pass the cavity of described metal coaxial filter 5, arrive the cavity of described dielectric filter 4, wherein, one section of being exposed in described metal coaxial filter 5 cavitys of this inner wire 32 is arranged with described metal sleeve 33,33 of this inner wire 32 and metal sleeves are provided with insulating barrier (not shown), and the end of this inner wire 32 does not contact with described dielectric resonance 41 simultaneously.
The described inner wire 32 that closes road port 3 is drawn one section arc wire 42 along its end in described dielectric filter 4 cavitys, and the center of circle of described arc wire 42 overlaps or roughly overlaps with the center of circle of described dielectric resonance 41 cylinders, forms 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 is free, be fixed on by dielectric 43 in the cavity of described dielectric filter 4, 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 on the described spaced walls 11.Described metal coaxial filter 5 is realized being electrically connected with the described road port 3 that closes by a wire 52 of drawing from the described metal sleeve 33 that closes road port 3, and particularly, this wire 52 is connected with described resonant column 51.One end of described wire 52 can be connected by being of coupled connections, being welded to connect or contacting with metal sleeve 33, and the other end of this wire 52 and described resonant column 51 can be by being of coupled connections or being welded to connect; Described connected mode can be selected according to concrete specification requirement.Described arc wire 42 and wire 52 preferred copper facing silver lines.
Described dielectric filter 4 has different working frequency range from metal coaxial filter 5, so both can not produce co-channel interference when closing the road, and the main source of its interference 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 for example, this arc wire 42 is thicker, and distance described dielectric resonance 41 is nearer, and the assigned bandwidth of dielectric filter 4 is wider; The level altitude of described wire 52, length and thickness etc. have a significant impact the port bandwidth of described metal coaxial filter 5, and for example, described wire 52 is highly higher, thicker, and the assigned bandwidth of described metal coaxial filter 5 is wider.The setting of described arc wire 42 and wire 52 be mutually involve, interactional, the port bandwidth of adjusting on any path must exert an influence to the port bandwidth of an other path, therefore, described arc wire 42 need to be debugged repeatedly with arranging of wire 52.
In sum, the combiner/structural design of the utility model cavity radio frequency device is novel, simple in structure, intermodulation is good, is suitable for batch production.
The utility model 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 better execution mode of the utility model; but not merely be restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, all be included within the protection range of the present utility model.
Claims (13)
1. the combiner/structure of cavity radio frequency device, comprise the first path and the alternate path that are arranged in the cavity, described the first path and alternate path are exported by a road of closing of closing road port realization signal, the described road port that closes comprises port joint, the inner wire of establishing in this port joint and the metal sleeve that is set on this inner wire, be provided with insulating barrier between described inner wire and metal sleeve, it is characterized in that: described the first path is realized by dielectric filter, described dielectric filter comprises at least one dielectric resonance, and this closes the dielectric resonance coupling of road port to draw arc wire and next-door neighbour from described inner wire; Described alternate path realizes that by the metal coaxial filter described metal coaxial filter comprises at least one resonant column, draws from described metal sleeve and is close to resonant column electric connection that this closes road port wire and the described metal coaxial filter.
2. the combiner/structure of cavity radio frequency device as claimed in claim 1 is characterized in that: dielectric resonance that described dielectric resonance is the TE pattern.
3. the combiner/structure of cavity radio frequency device as claimed in claim 2 is characterized in that: the sub-concentric setting of described arc wire and dielectric resonance.
4. the combiner/structure of cavity radio frequency device as claimed in claim 3, it 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, it is characterized in that: the free-end of described arc wire is fixed in the filter cavity by dielectric.
6. the combiner/structure of cavity radio frequency device as claimed in claim 5, it is characterized in that: the free-end of described arc wire is fixed on described cavity bottom.
7. the combiner/structure of cavity radio frequency device as claimed in claim 5 is characterized in that: described cavity is provided with the spaced walls of separating described the first path and alternate path, and the free-end of described arc wire is fixed on the described spaced walls.
8. the combiner/structure of cavity radio frequency device as claimed in claim 1, it is characterized in that: the wire in the described alternate path is of coupled connections, is welded to connect or contact with described metal sleeve and is connected.
9. the combiner/structure of cavity radio frequency device as claimed in claim 1, it is characterized in that: the wire in the described alternate path and described resonant column are of coupled connections or are welded to connect.
10. such as the combiner/structure of the described cavity radio frequency device of claim 1-9 any one, it is characterized in that: described the first path and alternate path physical isolation.
11. the combiner/structure of cavity radio frequency device as claimed in claim 10 is characterized in that: described inner wire passes the cavity of described alternate path, this inner wire end is arranged in the cavity of described the first path.
12. the combiner/structure of cavity radio frequency device as claimed in claim 11 is characterized in that: described metal sleeve is set on a section of cavity that described inner wire is positioned at alternate path.
13. a cavity radio frequency device is characterized in that: it adopts the combiner/structure such as the described cavity radio frequency device of claim 1-12 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100176 CN203242727U (en) | 2013-03-05 | 2013-03-05 | 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100176 CN203242727U (en) | 2013-03-05 | 2013-03-05 | 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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| Publication Number | Publication Date |
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| CN203242727U true CN203242727U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320100176 Withdrawn - After Issue CN203242727U (en) | 2013-03-05 | 2013-03-05 | 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151589A (en) * | 2013-03-05 | 2013-06-12 | 京信通信系统（中国）有限公司 | Combining-dividing structure of cavity radio frequency device and cavity radio frequency device adopting same |
-
2013
- 2013-03-05 CN CN 201320100176 patent/CN203242727U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151589A (en) * | 2013-03-05 | 2013-06-12 | 京信通信系统（中国）有限公司 | Combining-dividing structure of cavity radio frequency device and cavity radio frequency device adopting same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20150909 |
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| RGAV | Abandon patent right to avoid regrant |