CN101964435A - Cavity filter - Google Patents
Cavity filter Download PDFInfo
- Publication number
- CN101964435A CN101964435A CN 200910157677 CN200910157677A CN101964435A CN 101964435 A CN101964435 A CN 101964435A CN 200910157677 CN200910157677 CN 200910157677 CN 200910157677 A CN200910157677 A CN 200910157677A CN 101964435 A CN101964435 A CN 101964435A
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- China
- Prior art keywords
- cavity
- magnesium alloy
- body filter
- filter
- cover plate
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Abstract
The invention relates to the technical field of communication, in particular to a cavity filter. The cavity filter comprises a cavity, a resonance rod and a cover plate, wherein the cavity is combined with the cover plate; a hollow cavity is arranged on the cavity; the resonance rod is combined with the cavity and accommodated in the cavity; the cavity is made of magnesium alloy; and the surface of the side of the cavity opposite to the cover plate is plated with a metal layer. In the invention, the cavity of the cavity filter is made of the magnesium alloy, and because the density of the magnesium alloy is smaller, the weight of the cavity filter which is made of the magnesium alloy and in the same size as a traditional cavity filter is greatly reduced, which is beneficial to mounting, dismounting and transporting the cavity filter; and in addition, because the magnesium alloy has good processing properties, the processing time of the cavity filter is greatly reduced, and the labor production efficiency is improved, which is beneficial to the reduction of the processing cost and the using loss of a die for producing the cavity filter and the prolonging of the using time of the die.
Description
Technical field
This patent relates to technical field of micro communication, relates in particular to a kind of cavity body filter.
Background technology
In the base station system of mobile communication, pass through the signal of communication of the carrying communication data in the transmission antennas transmit particular frequency range usually, and by the reception antenna receiving communication signal.Not only comprise the signal of communication of the carrying communication data in the above-mentioned particular frequency range in the signal by the reception antenna reception, but also comprise clutter or interference signal that many above-mentioned particular frequency range are outer.To from the signal that reception antenna receives, obtain the signal of communication of the carrying communication data in the particular frequency range of transmission antennas transmit, usually need the signal that this reception antenna receives is carried out filtering by filter, with the outer clutter or the interference signal filtering of signal of communication characteristic frequency of this carrying communication data.
At present, generally adopt cavity body filter in the base station system.And this cavity body filter adopts aluminium, copper or aluminium alloy to make usually.Because the density of aluminium, copper or aluminium alloy is bigger, and is also bigger by the weight of its cavity body filter of making, and then make cavity body filter be unfavorable for transportation, install and dismounting, simultaneously the support that described cavity body filter is installed is also had higher requirements.
Patent content
In view of this, this patent provides a kind of cavity body filter that can transmit high-power signal.
A kind of cavity body filter comprises cavity, resonant rod and cover plate, described cavity combines with described cover plate, described cavity is provided with cavity, described resonant rod combines with described cavity, and be contained in the described cavity, described cavity adopts magnesium alloy to make, and the surface of a described cavity side relative with described cover plate is coated with metal level.
In the above-mentioned cavity body filter, described metal level uses argent.
In the above-mentioned cavity body filter, described resonant rod and described cavity are formed in one or a kind of in connecting of split.
In the above-mentioned cavity body filter, this resonant rod is made by magnesium alloy.
In the above-mentioned cavity body filter, described cavity body filter also comprises first end and second end, and described first end and second end all are arranged on the described cavity.
The cavity of above-mentioned cavity body filter adopts described magnesium alloy to make, because the density of described magnesium alloy is less, the weight with the onesize cavity body filter of traditional cavity body filter that adopts the magnesium alloy manufacturing is reduced greatly, help installation, dismounting, the transportation of described cavity body filter; In addition because described magnesium alloy has good processing characteristics, the time of the described cavity body filter of processing is significantly reduced, improved labor productivity, help cutting down finished cost, simultaneously, also help reducing the service wear of the mould of producing described cavity body filter, the service time of improving described mould.
Description of drawings
Fig. 1 is the schematic diagram of the cavity body filter of a better embodiment.
Embodiment
See also Fig. 1, cavity body filter 100 comprises cavity 110, cover plate 120, resonant rod 130, first end 140 and second end 150.On described cavity 110, be provided with a plurality of cavitys 111.Described resonant rod 130 combines with cavity 110, and is contained in the described cavity 111.Described first end 140 and second end 150 all are arranged on the cavity 110.Described cover plate 160 by screw on described cavity 110.
The material of making this cavity 110 is a magnesium alloy.Described cavity 110 is to be formed through turning by a monoblock magnesium alloy blank, and in other embodiments, described cavity 110 also can have described magnesium alloy materials through being stamped to form.Surface in described cavity 110 side relative with cover plate is coated with metal level, and the metal that described metal level uses is silver.
Described resonant rod 130 is one-body molded with described cavity 110 in the present embodiment, and it is made by described magnesium alloy materials.In other embodiments, described resonant rod 130 can adopt the split connecting mode to combine with described cavity 110, and described resonant rod 130 can be made by other metals such as copper, aluminium.The surface of described resonant rod 130 is coated with described metal level.
The cavity 110 of above-mentioned cavity body filter 100 adopts described magnesium alloy to make, because the density of described magnesium alloy is less, the weight with the onesize cavity body filter 100 of traditional cavity body filter that adopts the magnesium alloy manufacturing is reduced greatly, help installation, dismounting, the transportation of described cavity body filter; In addition because described magnesium alloy has good processing characteristics, the time of the described cavity body filter of processing is significantly reduced, improved labor productivity, help cutting down finished cost, simultaneously, also help reducing the service wear of the mould of producing described cavity body filter, the service time of improving described mould.
Claims (5)
1. cavity body filter, comprise cavity, resonant rod and cover plate, described cavity combines with described cover plate, described cavity is provided with cavity, described resonant rod combines with described cavity, and be contained in the described cavity, it is characterized in that: described cavity adopts magnesium alloy to make, and the surface of a described cavity side relative with described cover plate is coated with metal level.
2. cavity body filter as claimed in claim 1 is characterized in that: described metal level uses argent.
3. cavity body filter as claimed in claim 1 is characterized in that: described resonant rod and described cavity are formed in one or a kind of in connecting of split.
4. cavity body filter as claimed in claim 1 is characterized in that: this resonant rod is made by magnesium alloy.
5. cavity body filter as claimed in claim 1 is characterized in that: described cavity body filter also comprises first end and second end, and described first end and second end all are arranged on the described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910157677 CN101964435A (en) | 2009-07-23 | 2009-07-23 | Cavity filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910157677 CN101964435A (en) | 2009-07-23 | 2009-07-23 | Cavity filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101964435A true CN101964435A (en) | 2011-02-02 |
Family
ID=43517241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910157677 Pending CN101964435A (en) | 2009-07-23 | 2009-07-23 | Cavity filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101964435A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931460A (en) * | 2011-09-07 | 2013-02-13 | 苏州易特诺科技股份有限公司 | Magnesium alloy radio frequency and microwave device |
| CN107201473A (en) * | 2017-06-07 | 2017-09-26 | 深圳市威富通讯技术有限公司 | A kind of magnesium alloy and preparation method thereof, cavity body filter |
| CN107732391A (en) * | 2017-10-23 | 2018-02-23 | 成都旭思特科技有限公司 | A kind of lid equipment of cavity body filter |
-
2009
- 2009-07-23 CN CN 200910157677 patent/CN101964435A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931460A (en) * | 2011-09-07 | 2013-02-13 | 苏州易特诺科技股份有限公司 | Magnesium alloy radio frequency and microwave device |
| CN107201473A (en) * | 2017-06-07 | 2017-09-26 | 深圳市威富通讯技术有限公司 | A kind of magnesium alloy and preparation method thereof, cavity body filter |
| CN107732391A (en) * | 2017-10-23 | 2018-02-23 | 成都旭思特科技有限公司 | A kind of lid equipment of cavity body filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518104, Guangdong, Shenzhen province Baoan District manhole Street oyster road manhole Industrial Company Third Industrial Zone A1, A2, A3 101 and 2 layers, A4 Applicant after: Shenzhen Tat Fook Technology Co., Ltd. Co-applicant after: Anhui Dafu Electromechanical Technology Co., Ltd. Address before: 518108 Bao'an District, Shenzhen City, Guangdong Province, Shiyan Town, love group with the rich industrial area A \ B Dong Applicant before: Shenzhen Tat Fook Technology Co., Ltd. Co-applicant before: Anhui Dafu Electromechanical Technology Co., Ltd. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110202 |