CN2243719Y - Small size hanging micro-band two way filter - Google Patents
Small size hanging micro-band two way filter Download PDFInfo
- Publication number
- CN2243719Y CN2243719Y CN 95240757 CN95240757U CN2243719Y CN 2243719 Y CN2243719 Y CN 2243719Y CN 95240757 CN95240757 CN 95240757 CN 95240757 U CN95240757 U CN 95240757U CN 2243719 Y CN2243719 Y CN 2243719Y
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- China
- Prior art keywords
- filter
- dielectric layer
- metal shell
- small
- suspended mictrostrip
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Abstract
The utility model relates to a small-size duplex filter with a hanging microstrip line, which is a duplex filter used for transmitting and receiving microwaves. The utility model is mainly composed of a resonator (4) composed of a metallic shell (1), a dielectric layer (2) and an upper metallic strip line (3). A hanging microstrip line structure is used in the overall structure, and a transmitting filter and a receiving filter are integrated, wherein a baffle is arranged in the metallic shell and the space in the metallic shell is divided into two symmetrical cavities by the baffle. The transmitting filter and the receiving filter are respectively bridged on the side walls in the two cavities. The resonator is composed of the metallic microstrip line arranged on the dielectric layer.
Description
The utility model is a kind of duplexer filter spare that microwave transmits and receives that is used for, and belongs to the technical field that microwave filter is made.
Microwave diplexer is made up of microwave sending and receiving filter and one three end circulator, and its median filter is a Primary Component, and it should guarantee that the band interpolation consumption of duplexer filter is little, guarantees that again attenuation outside a channel is big, to guarantee receiving a two-way high degree of isolation.As microwave diplexer, at present interdigital filters that adopt metal rectangular bar (or round bar) to make, or waveguide filter more.The subject matter of this class filter is that volume is big, Heavy Weight, and especially in the microwave low-frequency range, the increase of volume and weight is just more, and the specification requirement height, the required precision height of machining, debug difficulties, thereby manufacturing cost is higher.In aviation, in the technical field of space flight, because this filter volume is big, Heavy Weight is the difficult problem that the relevant technologies personnel capture always.
Goal of the invention of the present utility model provides that a kind of volume is little, in light weight, low cost of manufacture, can satisfy the small-sized suspended mictrostrip duplexer filter of Aeronautics and Astronautics specification requirement.
Small-sized suspended mictrostrip duplexer filter of the present utility model.Form by metal shell, dielectric layer, resonator, on general structure design, adopted the suspended mictrostrip structure, will transmit and receive filter and be integrated.The resonator of soon being made up of the metal tape places in the cavity of metal shell, and transmits and receives two shared metal shells of filter.In this structure, resonator is made up of the last metal tape line that is bonded on the dielectric layer, and the cavity of the metal shell of suitable height is left in the both sides of dielectric layer bridge joint in metal shell in the upper and lower both sides of dielectric layer.Below dielectric layer, promptly be provided with a side of resonator and the both sides of shell bridge joint and also be respectively equipped with a following metal tape line.Metal shell comprises shell body and middle dividing plate, and this dividing plate is divided into two parts with the cavity in the metal shell, and the filter that transmits and receives is placed respectively in two separated cavitys of this same metal shell.
Advantage of the present utility model is:
Because suspended mictrostrip has the little advantage of loss, therefore adopt this microstrip line development microwave filter, its band interpolation consumption is little, the outer inhibition degree height of band.Compare with the ripple wave guide with metal rectangular bar interdigital filter, this duplexer filter volume is little, in light weight, reliable and stable, processing and fabricating convenient, only just can finish with general micro belt process and simple shell machining, and debugging is convenient, be suitable for batch process, thereby cost is low.This duplexer is applied to more can demonstrate in the aerospace equipment its distinctive advantage.
Fig. 1 is the suspended mictrostrip structural representation of employing of the present utility model.
Fig. 2 is a Pyatyi tap filter metal tape line schematic layout pattern.
Fig. 3 is the horizontal sectional structure schematic diagram of the utility model general structure.
Embodiment of the present utility model is as follows:
The technology that adopts making sheet, photoetching make on the dielectric layer 2 certain width on metal tape line 3 form the suspend resonator 4 of microstrip filter of multistage tap, the bridge joint place of both sides below dielectric layer and metal shell 1 also is provided with metal tape line 3-1 down, the central authorities of metal shell 1 are provided with a dividing plate 1-2, the inner cavity part of metal shell 1 is divided into two identical cavity 1-1, the place that connects with the dielectric layer Bridge 2 on the sidewall in metal shell is provided with groove, and dielectric layer is inserted in the metal shell by this groove.General little belt lacing is contained in the metal shell two ends at resonator 4 two, and the heart yearn of joint is welded on the going out of resonator two, the inbound port 4-1.In order to improve this stability of filter and reliability, about dielectric layer, in the cavity of both sides, can fill the backing material of low-k.For the performance index to this filter are finely tuned, can on the shell of appropriate location above the resonator, increase and adjust screw.Just can form small-sized suspended mictrostrip duplexer filter of the present utility model according to the above.
Claims (5)
1. a small-sized suspended mictrostrip duplexer filter is characterized in that this filter is made up of metal shell (1), dielectric layer (2), resonator (4), has adopted the suspended mictrostrip structure, will transmit and receive filter and be integrated.
2. small-sized suspended mictrostrip duplexer filter according to claim 1, it is characterized in that in the suspended mictrostrip structure, resonator (4) is made up of the last metal tape line (3) that is bonded on the dielectric layer (2), dielectric layer (2) bridge joint is in the both sides of metal shell (1), on dielectric layer (2), the cavity (1-1) of metal shell (1) is left in following both sides.
3. small-sized suspended mictrostrip duplexer filter according to claim 2 is characterized in that below dielectric layer (2) and the both sides of shell (1) bridge joint also are respectively equipped with a following metal tape line (3-1).
4. the small-sized suspended mictrostrip duplexer filter of being formed according to claim 1 or 2 or 3, it is characterized in that being provided with a dividing plate (1-2) in the centre of metal shell (1), cavity in the metal shell (1) is divided into two parts, and the filter that transmits and receives places respectively in these two separated cavitys of same metal shell (1-1).
5. small-sized suspended mictrostrip duplexer filter according to claim 4 is characterized in that being filled with the backing material of low-k in described cavity (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240757 CN2243719Y (en) | 1995-10-30 | 1995-10-30 | Small size hanging micro-band two way filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240757 CN2243719Y (en) | 1995-10-30 | 1995-10-30 | Small size hanging micro-band two way filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2243719Y true CN2243719Y (en) | 1996-12-25 |
Family
ID=33882277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240757 Expired - Fee Related CN2243719Y (en) | 1995-10-30 | 1995-10-30 | Small size hanging micro-band two way filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2243719Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025010B (en) * | 2009-09-18 | 2013-12-11 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN104752801A (en) * | 2015-04-20 | 2015-07-01 | 中国电子科技集团公司第四十一研究所 | Directional bridge based on coaxial sling transform-matching |
| CN108649301A (en) * | 2018-04-13 | 2018-10-12 | 江苏硅华电子科技有限公司 | A kind of broadband MEMS interdigital filters and preparation method thereof |
| CN108736116A (en) * | 2017-04-21 | 2018-11-02 | 上海诺基亚贝尔股份有限公司 | A kind of suspended stripline filter |
| CN111261980A (en) * | 2018-11-30 | 2020-06-09 | 华为技术有限公司 | Switch assembly and antenna device |
| US11670828B1 (en) | 2021-04-27 | 2023-06-06 | Rockwell Collins, Inc. | Dielectric and thin film floating metal stacking for embedded tunable filtering of high frequency signals |
-
1995
- 1995-10-30 CN CN 95240757 patent/CN2243719Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025010B (en) * | 2009-09-18 | 2013-12-11 | 鸿富锦精密工业（深圳）有限公司 | Filter |
| CN104752801A (en) * | 2015-04-20 | 2015-07-01 | 中国电子科技集团公司第四十一研究所 | Directional bridge based on coaxial sling transform-matching |
| CN104752801B (en) * | 2015-04-20 | 2017-08-11 | 中国电子科技集团公司第四十一研究所 | A kind of orientation electric bridge based on coaxial sling Transformation Matching |
| CN108736116A (en) * | 2017-04-21 | 2018-11-02 | 上海诺基亚贝尔股份有限公司 | A kind of suspended stripline filter |
| CN108736116B (en) * | 2017-04-21 | 2019-12-03 | 上海诺基亚贝尔股份有限公司 | A kind of suspended stripline filter |
| CN108649301A (en) * | 2018-04-13 | 2018-10-12 | 江苏硅华电子科技有限公司 | A kind of broadband MEMS interdigital filters and preparation method thereof |
| CN111261980A (en) * | 2018-11-30 | 2020-06-09 | 华为技术有限公司 | Switch assembly and antenna device |
| CN111261980B (en) * | 2018-11-30 | 2021-06-01 | 华为技术有限公司 | Switch assembly and antenna device |
| US11670828B1 (en) | 2021-04-27 | 2023-06-06 | Rockwell Collins, Inc. | Dielectric and thin film floating metal stacking for embedded tunable filtering of high frequency signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |