CN202352805U - Novel magnetic cross-coupling structure - Google Patents
Novel magnetic cross-coupling structure Download PDFInfo
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- CN202352805U CN202352805U CN201120529084XU CN201120529084U CN202352805U CN 202352805 U CN202352805 U CN 202352805U CN 201120529084X U CN201120529084X U CN 201120529084XU CN 201120529084 U CN201120529084 U CN 201120529084U CN 202352805 U CN202352805 U CN 202352805U
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- resonant rod
- cavity
- resonant
- housing
- coaxial cable
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Abstract
The utility model discloses a novel magnetic cross-coupling structure, comprising a housing (1), a cavity (2) enclosed by the housing (1), and a resonant rod A (3), a resonant rod B (4) and a resonant rod C (5) which are sequentially arranged in the cavity (2) in a linear structure, wherein a coaxial cable (6) is embedded in the side wall of the housing (1), and metal conductor parts (7) at two ends of the coaxial cable (6) are inserted into the cavity (2) through preformed holes in the inner wall of the side wall, and are respectively welded with the bottom ends of the resonant rod A (3) and the resonant rod C (5). The novel magnetic cross-coupling structure has the beneficial effects of being simple in structure, and easy to implement, the cross-coupling among the non-adjoining resonant rods is realized in a waver filter in which the resonant rods are linearly arranged, and a transmitting zero point is introduced into responses of the wave filter, so that the good out-of-band rejection of the wave filter is realized, the selectivity is improved, and on the another hand, the different coupling polarities can be realized due to coaxial cables with different lengths.
Description
Technical field
The utility model relates to the microwave communication field, particularly a kind of novel magnetic cross coupling structure.
Background technology
Filter is one of indispensable device of wireless communication system, and wireless communication system frequency resource in short supply further is also increasingly high to the requirement of the performance index of filter.Because the interval between the frequency spectrum is more and more littler, thereby interference each other will be more and more obvious, for avoiding this interference, then needs the filter of high selectivity, promptly have the filter of higher band outside inhibitory ability.In order to realize higher inhibition degree index, then need adopt generalized Chebyshev filter, i.e. the cross-couplings filter.The cross-couplings filter need utilize the cross-couplings between the non-adjacent resonators in filter response, to introduce transmission zero, thereby the stopband of filter response curve is more precipitous, suppresses Du Genggao.
It is structural folding that traditional coaxial cavity filter realizes that cross-couplings generally needs; Be being staggered of resonant cavity; But some path must be that linear pattern is arranged in the multipath mixer, thereby staggered cavity body filter obviously here is inapplicable.
The utility model content
The purpose of the utility model is to overcome the shortcoming of prior art, and a kind of novel cross-linked structure of realization magnetic in the linear pattern filter is provided.
The purpose of the utility model realizes through following technical scheme:
A kind of novel magnetic cross coupling structure; The resonant rod A, resonant rod B and the resonant rod C that are arranged in order with linear structure in the cavity that it comprises housing, surrounded by housing, the cavity; Be embedded with coaxial cable in the sidewall of housing; And the inwall of this sidewall is provided with two preformed holes, and the metal conductor portion at coaxial cable two ends is inserted in the cavity through this preformed hole, and the metal conductor portion at coaxial cable two ends is welded in the bottom of resonant rod A resonant bar C respectively.
Resonant rod is the copper bar preferably, so that the welding of coaxial cable.
The utlity model has following advantage:
1, the utility model simple in structure, be easy to realize; Can in the resonant rod filter that linearly type is arranged, realize the magnetic cross-couplings very easily; Thereby when having avoided, need structural folding, be applicable to microwave pectination cavity body filter as cavity body filter realization cross-couplings.
2, be that coaxial cable has been realized the cross-couplings between the non-adjacent resonant rod in the linear pattern filter through transmission line, in filter response, introduced transmission zero, thereby realized that filter suppresses outside being with preferably, has improved selectivity.In addition on the one hand, through using the coaxial cable of different length, can realize different coupling polarity.
Description of drawings
Fig. 1 is the structural representation of the utility model
Among the figure, 1-housing, 2-cavity, 3-resonant rod A, 4-resonant rod B, 5-resonant rod C, 6-coaxial cable, 7-metal conductor portion.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further description:
As shown in Figure 1; A kind of novel magnetic cross coupling structure; The resonant rod A3, resonant rod B4 and the resonant rod C5 that are arranged in order with linear structure in the cavity 2 that it comprises housing 1, surrounded by housing 1, the cavity 2; Be embedded with coaxial cable 6 in the sidewall that housing 1 and resonant rod orientation parallel; And the inwall of this sidewall is provided with two preformed holes, and the metal conductor portion 7 at coaxial cable 6 two ends is inserted in the cavity 2 through this preformed hole, and the metal conductor portion 7 at coaxial cable 6 two ends is welded in the bottom of resonant rod A3 resonant bar C5 respectively.Resonant rod is the copper bar preferably, so that the welding of coaxial cable 6.
Because magnetic field mainly concentrates on short-circuit end, thereby just can realize these two the magnetic cross-couplings between the non-adjacent resonant rod like this.Through changing the height that coaxial cable 6 is welded in resonant rod, can change the size of magnetic cross-couplings amount, coaxial cable 6 is high more from the height of short-circuit end, and then magnetic cross-couplings amount is big more.
Claims (1)
1. novel magnetic cross coupling structure; It is characterized in that: the resonant rod A (3), resonant rod B (4) and the resonant rod C (5) that are arranged in order with linear structure in the cavity (2) that it comprises housing (1), surrounded by housing (1), the cavity (2); Be embedded with coaxial cable (6) in the sidewall of housing (1); And the inwall of this sidewall is provided with two preformed holes; The metal conductor portion (7) at coaxial cable (6) two ends is inserted in the cavity (2) through this preformed hole, and the metal conductor portion (7) at coaxial cable (6) two ends is welded in the bottom of resonant rod A (3) resonant bar C (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120529084XU CN202352805U (en) | 2011-12-16 | 2011-12-16 | Novel magnetic cross-coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120529084XU CN202352805U (en) | 2011-12-16 | 2011-12-16 | Novel magnetic cross-coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352805U true CN202352805U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120529084XU Expired - Fee Related CN202352805U (en) | 2011-12-16 | 2011-12-16 | Novel magnetic cross-coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352805U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934201A (en) * | 2015-07-03 | 2015-09-23 | 江苏容天机电科技有限公司 | Lead structure about transformer on-load voltage regulation tap switch |
| CN107425247A (en) * | 2013-09-27 | 2017-12-01 | 英特尔公司 | Multi-resmator cross-coupling |
| CN108110389A (en) * | 2017-11-21 | 2018-06-01 | 上海交通大学 | A kind of high proximal inhibition degree Mini Microstrip hair clip line filter |
| CN111211388A (en) * | 2020-03-24 | 2020-05-29 | 江苏贝孚德通讯科技股份有限公司 | Metal filter with inductance structure |
-
2011
- 2011-12-16 CN CN201120529084XU patent/CN202352805U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425247A (en) * | 2013-09-27 | 2017-12-01 | 英特尔公司 | Multi-resmator cross-coupling |
| CN107425247B (en) * | 2013-09-27 | 2020-10-16 | 英特尔公司 | Multiple resonator non-adjacent coupling |
| CN104934201A (en) * | 2015-07-03 | 2015-09-23 | 江苏容天机电科技有限公司 | Lead structure about transformer on-load voltage regulation tap switch |
| CN108110389A (en) * | 2017-11-21 | 2018-06-01 | 上海交通大学 | A kind of high proximal inhibition degree Mini Microstrip hair clip line filter |
| CN111211388A (en) * | 2020-03-24 | 2020-05-29 | 江苏贝孚德通讯科技股份有限公司 | Metal filter with inductance structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121216 |