CN201725860U - Wave filter with medium base - Google Patents
Wave filter with medium base Download PDFInfo
- Publication number
- CN201725860U CN201725860U CN2010202338151U CN201020233815U CN201725860U CN 201725860 U CN201725860 U CN 201725860U CN 2010202338151 U CN2010202338151 U CN 2010202338151U CN 201020233815 U CN201020233815 U CN 201020233815U CN 201725860 U CN201725860 U CN 201725860U
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- medium
- metal derby
- cavity
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- base
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Abstract
The utility model discloses a wave filter with a medium base, which comprises a cavity body, a tubular medium, a cover plate, and a wholly silvered metal block, wherein the bottom surface of the medium is welded with the metal block; and the metal block is fixed at the bottom part of the cavity body. The utility model can effectively avoid the problems caused by directly welding the medium on the cavity body.
Description
Technical field
The utility model relates to a kind of filter, in particular a kind of filter with the medium base.
Background technology
In the mobile communication system, filter is a significant element, and conventional filter is based on the wire chamber Design of Filter, and crowded day by day along with communications band requires more and more higher to performance of filter.It is high that TM01 mould medium has the Q value, and temperature coefficient is good, and good characteristics such as low price will play more and more important effect in following Design of Filter.
In the TM01 mould dielectric filter design, the dielectric structure design is an important component part, this partial design rationally whether, directly have influence on the passive intermodulation and the reliability of filter.
Figure 1 shows that general TM01 mould dielectric filter, as shown in the figure, medium 30 is fixed on the bottom of cavity 20 by certain mode, and medium 30 closely is connected with cavity 20 bottoms.For medium is closely contacted with cavity bottom, normally medium 30 is welded to cavity bottom by Reflow Soldering or alternate manner, solder side 50 as shown in the figure.
But there is following shortcoming in existing scheme:
1. because cavity belongs to metallic conductor, and volume is big, rapid heat dissipation, between medium and the cavity to be welded on the technology difficulty bigger;
2. medium and cavity bottom welding quality are difficult to control, weld the bad serious passive intermodulation problem that then exists;
3. medium is in the same place with other metal solder, because the temperature coefficient of dilatation of medium is different with metal, when dielectric filter cavity environment variations in temperature is big, because the size telescopic level of medium and cavity is different, cause medium to ftracture at weld probably, performance worsens;
4. if medium welding has problem, take off difficulty from cavity, it is big to reprocess difficulty.
Therefore, prior art has yet to be improved and developed.
The utility model content
The purpose of this utility model is to provide a kind of TM01 mould dielectric filter of special construction, is intended to solve when being welded direct to medium on the cavity, and the welding difficulty is bigger, welding quality is difficult to control and reprocess problems such as difficulty is big.
The technical solution of the utility model is as follows:
A kind of filter comprises cavity, medium and cover plate, and described medium is a tubulose, wherein, also comprises a whole silver-plated metal derby, the bottom surface of described medium and metal derby welding; Described metal derby is by being bolted to cavity bottom.
Described filter, wherein, reach medium the bottom surface be silver-plated bottom surface.
Described filter, wherein, described metal derby is a cylinder, and a lug boss is set on it; Described cylindrical size is less than medium bottom surface diameter, and the shape and size of described lug boss and the internal diameter of medium are adaptive.
Described filter, wherein, the described metal derby side of being body is provided with a lug boss on it; The size of described side's body is less than medium bottom surface diameter, and the shape and size of described lug boss and the internal diameter of medium are adaptive.
The beneficial effects of the utility model: the utility model is by being provided with a base between medium and cavity, medium welding is fixed on base on the cavity with bolt in back on the base, effectively avoids because of medium being welded direct to the variety of issue that brings on the cavity.
Description of drawings
Fig. 1 is existing filter generalized section;
Fig. 2 is the generalized section of the utility model filter;
Fig. 3 is the vertical view of medium of the present utility model;
Fig. 4 is the cutaway view along the one A line of A among Fig. 3;
Fig. 5 is the profile of metal derby base of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
See also Fig. 2, filter of the present utility model comprises cover plate 10, cavity 20, medium 30, metal derby base 40, and medium 30 contacts with metal derby base 40; The end face of described medium is set to open circuit; The metal derby base is fixed on the bottom of cavity 20 by bolt 43; Described cover plate 10 is provided with tuning screw rod 11, and fixes on the cover board by nut 12, thereby described tuning screw rod 11 can be regulated length adjusting resonance frequency by screwing.
Referring to Fig. 3 and Fig. 4, medium 30 overall structures are tubulose, and its internal diameter 31 is provided with less.Fig. 4 is the cutaway view along A-A line among Fig. 3, is provided with silver-plated 32 at the bottom surface of medium 30.
Referring to Fig. 5 is metal derby base 40 of the present utility model, and described metal derby base 40 is made as cylindrical shape (also can be set to Fang Ti etc.), and a lug boss 42 is set on it, and metal derby base 40 is provided with a screw 41, is used for adaptive bolt 43; Described cylindrical size its role is to reduce the contact area of medium 30 and metal derby base 40 less than medium 30 bottom surface diameters, can make welding be more prone to operation on the one hand, can strengthen the passive intermodulation performance of filter on the other hand; The shape and size of described lug boss 42 and the internal diameter of medium 31 are adaptive, and when lug boss 42 was fitted in the internal diameter 31 of medium, medium 30 promptly was fixed on the metal derby base 40.
Medium 30 and metal derby base 40 are provided with as a whole by welding, thereby and will guarantee that every a metal derby base 40 media 30 can not be subjected to causing weld to split greatly because of cavity 20 variations in temperature between medium 30 and the cavity 20.
The assembling process of the utility model filter is as follows:
At first, by welding medium 30 is fixed on the metal derby base 40 then the one side and 40 assemblings of metal derby base of being provided with of medium 30 silver-plated 32; After medium 30 and metal derby base 40 fix, medium 30 and metal derby base 40 are fixed on the cavity 20 by a spiral shell inspection 43; The cover plate 10 that will assemble tuning screw rod 11 at last covers the assembling that can finish filter at the opening part of cavity 20.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (4)
1. a filter comprises cavity, medium and cover plate, and described medium is a tubulose, it is characterized in that, also comprises a whole silver-plated metal derby, the bottom surface of described medium and metal derby welding; Described metal derby is by being bolted to cavity bottom.
2. filter according to claim 1 is characterized in that, the bottom surface of described medium is silver-plated bottom surface.
3. filter according to claim 1 is characterized in that described metal derby is a cylinder, and a lug boss is set on it; Described cylindrical size is less than medium bottom surface diameter, and the shape and size of described lug boss and the internal diameter of medium are adaptive.
4. filter according to claim 1 is characterized in that, the described metal derby side of being body is provided with a lug boss on it; The size of described side's body is less than medium bottom surface diameter, and the shape and size of described lug boss and the internal diameter of medium are adaptive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202338151U CN201725860U (en) | 2010-06-10 | 2010-06-10 | Wave filter with medium base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202338151U CN201725860U (en) | 2010-06-10 | 2010-06-10 | Wave filter with medium base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725860U true CN201725860U (en) | 2011-01-26 |
Family
ID=43494208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202338151U Expired - Lifetime CN201725860U (en) | 2010-06-10 | 2010-06-10 | Wave filter with medium base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725860U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916240A (en) * | 2012-11-21 | 2013-02-06 | 江苏贝孚德通讯科技股份有限公司 | High-reliability TM mode single-ended short circuiting resonator |
| CN102931464A (en) * | 2012-11-21 | 2013-02-13 | 江苏贝孚德通讯科技股份有限公司 | Single-ended short circuit dielectric resonator |
| CN102938490A (en) * | 2012-11-21 | 2013-02-20 | 江苏贝孚德通讯科技股份有限公司 | Medium TM mode single-ended short circuit resonator |
| CN103022627A (en) * | 2012-12-14 | 2013-04-03 | 中兴通讯股份有限公司 | Transverse magnetic (TM) dielectric resonator, implement method thereof and TM dielectric filter |
| WO2013117072A1 (en) * | 2012-02-08 | 2013-08-15 | 武汉凡谷电子技术股份有限公司 | Mid-frequency band high-power cavity filter |
| CN103682537A (en) * | 2012-08-31 | 2014-03-26 | 罗森伯格（上海）通信技术有限公司 | TM (Transverse Magnetic) mode dielectric filter |
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
| JP2022518360A (en) * | 2018-12-28 | 2022-03-15 | 華為技術有限公司 | TM mode filter and manufacturing method of TM mode filter |
-
2010
- 2010-06-10 CN CN2010202338151U patent/CN201725860U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013117072A1 (en) * | 2012-02-08 | 2013-08-15 | 武汉凡谷电子技术股份有限公司 | Mid-frequency band high-power cavity filter |
| CN103682537B (en) * | 2012-08-31 | 2018-08-14 | 罗森伯格（上海）通信技术有限公司 | TM mould dielectric filters |
| CN103682537A (en) * | 2012-08-31 | 2014-03-26 | 罗森伯格（上海）通信技术有限公司 | TM (Transverse Magnetic) mode dielectric filter |
| CN102916240A (en) * | 2012-11-21 | 2013-02-06 | 江苏贝孚德通讯科技股份有限公司 | High-reliability TM mode single-ended short circuiting resonator |
| CN102931464A (en) * | 2012-11-21 | 2013-02-13 | 江苏贝孚德通讯科技股份有限公司 | Single-ended short circuit dielectric resonator |
| CN102938490A (en) * | 2012-11-21 | 2013-02-20 | 江苏贝孚德通讯科技股份有限公司 | Medium TM mode single-ended short circuit resonator |
| CN103022627B (en) * | 2012-12-14 | 2017-07-18 | 中兴通讯股份有限公司 | TM dielectric resonators and its implementation and TM dielectric filters |
| JP2016503976A (en) * | 2012-12-14 | 2016-02-08 | ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ | TM medium resonator, realization method thereof, and TM medium filter |
| WO2014090031A1 (en) * | 2012-12-14 | 2014-06-19 | 中兴通讯股份有限公司 | Tm medium resonator, method of implementing same, and tm medium filter |
| US9935348B2 (en) | 2012-12-14 | 2018-04-03 | Zte Corporation | TM dielectric resonator, method for implementing TM dielectric resonator and TM dielectric filter |
| CN103022627A (en) * | 2012-12-14 | 2013-04-03 | 中兴通讯股份有限公司 | Transverse magnetic (TM) dielectric resonator, implement method thereof and TM dielectric filter |
| CN107615579A (en) * | 2015-05-20 | 2018-01-19 | 华为技术有限公司 | Wave filter and electromagnetic equipment |
| CN107615579B (en) * | 2015-05-20 | 2020-02-21 | 华为技术有限公司 | Filter and electromagnetic device |
| JP2022518360A (en) * | 2018-12-28 | 2022-03-15 | 華為技術有限公司 | TM mode filter and manufacturing method of TM mode filter |
| JP7266685B2 (en) | 2018-12-28 | 2023-04-28 | 華為技術有限公司 | TM mode filter and method for manufacturing TM mode filter |
| US11990661B2 (en) | 2018-12-28 | 2024-05-21 | Huawei Technologies Co., Ltd. | TM mode filter and method for manufacturing TM mode filter |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |