CN202888364U - Cavity filter and power amplifier module - Google Patents
Cavity filter and power amplifier module Download PDFInfo
- Publication number
- CN202888364U CN202888364U CN 201220519311 CN201220519311U CN202888364U CN 202888364 U CN202888364 U CN 202888364U CN 201220519311 CN201220519311 CN 201220519311 CN 201220519311 U CN201220519311 U CN 201220519311U CN 202888364 U CN202888364 U CN 202888364U
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- China
- Prior art keywords
- coupling bar
- resonant rod
- cavity
- power board
- body filter
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Abstract
The present utility model discloses a cavity filter and a power amplifier module. A cavity, a resonance rod arranged inside the cavity, a cover plate and a coupling rod are provided. The coupling rod is connected with an external power amplifier board after passing through the cover plate, the coupling rod is connected with a signal transmission point of the external power amplifier board, a signal coupling structure is formed by the coupling rod and the resonance rod, and the resonance rod is connected with the signal transmission point of the external power amplification board through the coupling rod. In the cavity filter and the power amplifier module, a connecting method of the power amplification board and a connector internal conductor is improved, the relative position error between the coupling rod and the signal transmission point of the power amplification board can be avoided, and good contact between the coupling rod and the signal transmission point of external power amplification board of the cavity filter can be guaranteed.
Description
Technical field
The utility model embodiment relates to communication technical field, also relates to a kind of cavity body filter and power amplifier module.
Background technology
Cavity body filter is widely used in the communications field as a kind of frequency selection device because the specific (special) requirements that cavity body filter transmits signal, between its each assembly and and joint outer part between interconnective precision have relatively high expectations.
See also Fig. 1, Fig. 1 has shown a kind of schematic partial cross-sectional view of cavity body filter in the prior art, has wherein also shown the outside power board that part is connected with cavity body filter.
As shown in Figure 1, this cavity body filter comprises cavity 100, cover plate 110, connector outer conductor 120 and connector inner wire 130.
Cover plate 110 capping cavitys 100 briefly.Connector outer conductor 120 is connected with cover plate 110, connector inner wire 130 is located at connector and is led outward in 120 bodies, and connector inner wire 130 passes cover plate 110, be connected with the signal transfer point of the outside power board 150 of cavity body filter, generally speaking, connector outer conductor 120 and connector inner wire 130 adopt coaxial design, consist of the structure that signal transmits.Connector outer conductor 120 further is provided with conduction insulation rubber 124, is used for preventing leakage signal.
In the research and practice process to prior art; utility model people of the present utility model finds; in the above-mentioned prior art: inner wire 130 and power board 150 are owing to make and directional error; when the height of inner wire 130 is lower than assembling base plane; usually can there be gap h; inner wire produces distortion with making power board after power board is connected; and when the height of inner wire 130 is higher than assembling base plane; then power board 150 jack-up can may be made equally power board produce distortion, can not guarantee the good contact between the signal transfer point of connector inner wire 130 and cavity body filter outside power board 150.
The utility model content
In order to solve the defective that causes the power board distortion when inner wire is connected with power board in the prior art, the utility model provides a kind of cavity body filter and power amplifier module, can well solve problems of the prior art.
A kind of cavity body filter, comprise cavity, be located at resonant rod, cover plate and coupling bar in the cavity, described coupling bar passes described cover plate and is connected with outside power board, described coupling bar is connected with transmission point signal on the described outside power board, described coupling bar and described resonant rod form the signal coupling structure, and described resonant rod is connected with transmission point signal on the described outside power board by described coupling bar.
Described coupling bar and described resonant rod form structure capacitive.
Described coupling bar inserts in the cavity of resonant rod, with the inner surface formation structure capacitive of described resonant rod.
Described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod.
Described coupling bar is connected by riveted joint, crimping, socket, welding or threaded connection mode with described outside power board.
Described resonant rod and described cavity are bolted.
Described resonant rod and described cavity are one-body molded.
A kind of power amplifier module, comprise cavity body filter and power board, comprise cavity, be located at resonant rod, cover plate and coupling bar in the cavity, described coupling bar passes described cover plate and is connected with outside power board, described coupling bar is connected with transmission point signal on the described outside power board, described coupling bar and described resonant rod form the signal coupling structure, and described resonant rod is connected with transmission point signal on the described outside power board by described coupling bar.
Described coupling bar inserts in the cavity of resonant rod, with the inner surface formation structure capacitive of described resonant rod.
Described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod.
The cavity body filter pin that the utility model embodiment provides and power amplifier module have proposed improvement project to the connected mode of power board and connector inner wire, the relative position error between the signal transfer point of coupling bar and power board can be eliminated, good contact between the signal transfer point of the outside power board of coupling bar and cavity body filter can be guaranteed.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the partial cross-sectional cut-away view that a kind of cavity body filter is connected with power board in the prior art;
Fig. 2 is the partial cross-sectional cut-away view that a kind of cavity body filter among the utility model embodiment is connected with power board;
Fig. 3 is the partial cross-sectional cut-away view that the another kind of cavity body filter among the utility model embodiment is connected with power board.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one,
A kind of cavity body filter, comprise cavity 200, be located at resonant rod 210, cover plate 220 and coupling bar 230 in the cavity, described coupling bar 230 passes described cover plate 220 and is connected with outside power board 240, described coupling bar 230 is connected with transmission point signal on the described outside power board 240, described coupling bar 230 forms the signal coupling structures with described resonant rod 210, and described resonant rod 210 is connected with transmission point signal on the described outside power board 240 by described coupling bar 230.
Described cover plate 220 capping cavitys 200, cover plate are provided with supporting seat 270 and are connected with outside power board 240, and with the not conducting of outside power board, coupling bar 230 passes cover plate of connector 220, is connected with the outside power board 240 of cavity body filter.
Described coupling bar 230 forms structure capacitive with described resonant rod 210, utilizes mechanism's electric capacity of described formation to carry out the signal transmission.
A kind of execution mode, as shown in Figure 2, described coupling bar 230 inserts in the cavity of resonant rod 210, with the inner surface formation structure capacitive of described resonant rod 210, and coupling bar 230 and resonant rod 210 coaxial design.Described coupling bar and described outside power board adopt the mode that is flexibly connected, and regulate coupling bar and move up and down in resonant rod, to regulate microwave signal transmission stiffness of coupling, make the signal output variable meet the requirements of data.
Another kind of execution mode, as shown in Figure 3, described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod, and the structure capacitive by described formation carries out the signal transmission.Described coupling bar and described outside power board adopt the mode that is flexibly connected, and regulate coupling bar and move up and down, and to regulate microwave signal transmission stiffness of coupling, make the signal output variable meet the requirements of data.
By adopting the coupled structure of above-mentioned coupling bar and resonant rod, microwave signal directly transfers to outside power board by resonant rod and coupling bar with coupled modes, the microwave signal intensity transmission is adjustable, be beneficial to the data precision, saved simultaneously cavity row cavity space, must be not in addition emptying do the transmission structure design, be conducive to the filter Miniaturization Design.In addition, because signal transmits by coupled modes, and adjustable, be that this kind structure is limited to without assembly structure take air as medium between resonant rod and coupling bar, the tolerance dimension required precision is little, the Standard process.
Described coupling bar 230 is connected by riveted joint, crimping, socket, welding or threaded connection mode with described outside power board 240, preferably, described coupling bar 230 outer surfaces are provided with screw thread, and described coupling bar 230 is connected by nut 250 with described outside power board 240.
Described resonant rod 210 is bolted with described cavity 200.
Another kind of execution mode, described resonant rod 210 and described cavity 200 are one-body molded.
The cavity body filter pin that the utility model embodiment provides and power amplifier module have proposed improvement project to the connected mode of power board and connector inner wire, the relative position error between the signal transfer point of coupling bar and power board can be eliminated, good contact between the signal transfer point of the outside power board of coupling bar and cavity body filter can be guaranteed.
Embodiment two,
A kind of power amplifier module, comprise cavity body filter and power board, comprise cavity, be located at resonant rod, cover plate and coupling bar in the cavity, described coupling bar passes described cover plate and is connected with outside power board, described coupling bar is connected with transmission point signal on the described outside power board, described coupling bar and described resonant rod form the signal coupling structure, and described resonant rod is connected with transmission point signal on the described outside power board by described coupling bar.
Described coupling bar inserts in the cavity of resonant rod, with the inner surface formation structure capacitive of described resonant rod.
Described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod.
By adopting the coupled structure of above-mentioned coupling bar and resonant rod, microwave signal directly transfers to outside power board by resonant rod and coupling bar with coupled modes, the microwave signal intensity transmission is adjustable, be beneficial to the data precision, saved simultaneously cavity row cavity space, must be not in addition emptying do the transmission structure design, be conducive to the filter Miniaturization Design.In addition, because signal transmits by coupled modes, and adjustable, be that this kind structure is limited to without assembly structure take air as medium between resonant rod and coupling bar, the tolerance dimension required precision is little, the Standard process.
By adopting the coupled structure of above-mentioned coupling bar and resonant rod, microwave signal directly transfers to outside power board by resonant rod and coupling bar with coupled modes, the microwave signal intensity transmission is adjustable, be beneficial to the data precision, saved simultaneously cavity row cavity space, must be not in addition emptying do the transmission structure design, be conducive to the filter Miniaturization Design.In addition, because signal transmits by coupled modes, and adjustable, be that this kind structure is limited to without assembly structure take air as medium between resonant rod and coupling bar, the tolerance dimension required precision is little, the Standard process.
Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. cavity body filter, it is characterized in that: comprise cavity, be located at resonant rod, cover plate and coupling bar in the cavity, described coupling bar passes described cover plate and is connected with outside power board, described coupling bar is connected with transmission point signal on the described outside power board, described coupling bar and described resonant rod form the signal coupling structure, and described resonant rod is connected with transmission point signal on the described outside power board by described coupling bar.
2. cavity body filter according to claim 1 is characterized in that: described coupling bar and described resonant rod formation structure capacitive.
3. cavity body filter according to claim 2 is characterized in that: in the cavity of described coupling bar insertion resonant rod, with the inner surface formation structure capacitive of described resonant rod.
4. cavity body filter according to claim 2, it is characterized in that: described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod.
5. according to claim 1 to the described cavity body filter of 4 any one, it is characterized in that: described coupling bar is connected by riveted joint, crimping, socket, welding or threaded connection mode with described outside power board.
6. according to claim 1 to the described cavity body filter of 4 any one, it is characterized in that: described resonant rod and described cavity are bolted.
7. according to claim 1 to the described cavity body filter of 4 any one, it is characterized in that: described resonant rod and described cavity are one-body molded.
8. power amplifier module, it is characterized in that: comprise cavity body filter and power board, comprise cavity, be located at resonant rod, cover plate and coupling bar in the cavity, described coupling bar passes described cover plate and is connected with outside power board, described coupling bar is connected with transmission point signal on the described outside power board, described coupling bar and described resonant rod form the signal coupling structure, and described resonant rod is connected with transmission point signal on the described outside power board by described coupling bar.
9. power amplifier module according to claim 8 is characterized in that: in the cavity of described coupling bar insertion resonant rod, with the inner surface formation structure capacitive of described resonant rod.
10. power amplifier module according to claim 8, it is characterized in that: described coupling bar is positioned at the outside of described resonant rod, and forms structure capacitive with the outer surface of described resonant rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519311 CN202888364U (en) | 2012-10-11 | 2012-10-11 | Cavity filter and power amplifier module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519311 CN202888364U (en) | 2012-10-11 | 2012-10-11 | Cavity filter and power amplifier module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888364U true CN202888364U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519311 Expired - Fee Related CN202888364U (en) | 2012-10-11 | 2012-10-11 | Cavity filter and power amplifier module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888364U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356595A (en) * | 2016-09-19 | 2017-01-25 | 深圳三星通信技术研究有限公司 | Cavity filter |
| WO2018001315A1 (en) * | 2016-06-29 | 2018-01-04 | 中兴通讯股份有限公司 | Connector and device |
| WO2018133336A1 (en) * | 2017-01-22 | 2018-07-26 | 深圳市国人射频通信有限公司 | Coupling port structure, and cavity filter |
-
2012
- 2012-10-11 CN CN 201220519311 patent/CN202888364U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018001315A1 (en) * | 2016-06-29 | 2018-01-04 | 中兴通讯股份有限公司 | Connector and device |
| CN107546553A (en) * | 2016-06-29 | 2018-01-05 | 中兴通讯股份有限公司 | Connector and equipment |
| CN107546553B (en) * | 2016-06-29 | 2020-03-27 | 中兴通讯股份有限公司 | Connector and apparatus |
| CN106356595A (en) * | 2016-09-19 | 2017-01-25 | 深圳三星通信技术研究有限公司 | Cavity filter |
| CN106356595B (en) * | 2016-09-19 | 2019-07-30 | 深圳三星通信技术研究有限公司 | A kind of cavity body filter |
| WO2018133336A1 (en) * | 2017-01-22 | 2018-07-26 | 深圳市国人射频通信有限公司 | Coupling port structure, and cavity filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20171011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |