CN102074776A - Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device - Google Patents
Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device Download PDFInfo
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- CN102074776A CN102074776A CN2010106051812A CN201010605181A CN102074776A CN 102074776 A CN102074776 A CN 102074776A CN 2010106051812 A CN2010106051812 A CN 2010106051812A CN 201010605181 A CN201010605181 A CN 201010605181A CN 102074776 A CN102074776 A CN 102074776A
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- 238000004891 communication Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000004512 die casting Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 230000019491 signal transduction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The embodiment of the invention provides a cavity filter and a manufacturing method thereof. The cavity filter comprises a cavity, a cover plate and a resonance rod, wherein the cover plate seals the cavity; the resonance rod serving as an insert is cast together with the cavity or the cover plate without installing screws, so the cavity filter is efficient and time-saving and has low cost; and the resonance rod is well contacted with the cavity or the cover plate, so the communication index of the cavity filter is greatly optimized. Because the resonance rod is in an insert module form, the resonance rod and the cavity can be made of different materials, and the materials can be selected according to the signal transduction property, mechanical strength, cost and the like of the materials.
Description
[technical field]
The present invention relates to communications field wave filter technology, particularly a kind of cavity body filter and manufacture method, frequency communication devices and communication equipment.
[background technology]
Cavity body filter is widely used in the communications field as a kind of frequency selection device, especially field of radio frequency communication.In the base station, filter is used to select signal of communication, clutter or interference signal that the filtering communication signal frequency is outer.
Cavity body filter generally comprises three classes, and the first kind is a coaxial cavity filter, and second class is a dielectric filter, and the 3rd class is a waveguide filter.
With regard to coaxial cavity filter (being called for short cavity body filter down), please in the lump referring to Fig. 1 and Fig. 2, wherein, Fig. 1 has shown the schematic cross-section of a kind of cavity body filter in the prior art and cover plate thereof, and Fig. 2 shown a kind of partial structurtes schematic diagram of cavity body filter product in the prior art.
As shown in Figure 1, this cavity body filter 10 comprises cavity 11, cover plate 12 and resonant rod 13.Cover plate 12 capping cavitys 11 form resonant cavity 110.The bottom of cavity 11 is provided with installing hole 111, and resonant rod 13 is assemblied in cavity 11 bottoms by screw 112.As shown in Figure 2, the cavity body filter product has a plurality of structures shown in Figure 1, and each resonant rod all is assemblied in cavity bottom by the screw fastening means.
In research and practice process to prior art, the present inventor's discovery, in the prior art, owing to adopt screw that resonant rod is installed, its complex procedures, assembling is consuming time and cost is higher, if a certain screw loosening or come off and be easy to have influence on the signal processing of whole cavity body filter.
Therefore, be necessary the annexation of resonant rod and cavity is optimized improvement.
[summary of the invention]
The embodiment of the invention solves the problems of the technologies described above the technical scheme of being taked and provides a kind of cavity body filter, comprise cavity, cover plate and resonant rod, wherein, the described cavity of described cover plate capping, described resonant rod as inserts with cavity or cover plate die cast.
The embodiment of the invention also provides a kind of communication equipment, and this communication equipment comprises cavity body filter mentioned above, and cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The embodiment of the invention also provides a kind of manufacture method of cavity body filter, in this manufacture method, earlier resonant rod is shaped to inserts via punching press, die casting or machining mode, utilize then described resonant rod as inserts with cavity or cover plate die cast, make described resonant rod and described cavity or the cover plate structure that links into an integrated entity.
The embodiment of the invention also provides a kind of frequency communication devices, and this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, described resonant rod as inserts with cavity or cover plate die cast.
Compared with prior art, the cavity body filter that the embodiment of the invention provides, resonant rod as inserts with cavity or cover plate die cast, need not mounting screw, high efficiency and time conservation, with low cost, resonant rod is good with contacting of cavity or cover plate, has optimized the singal reporting code of cavity body filter greatly.Because of resonant rod as inserts with cavity or cover plate die casting, can adopt different materials, concrete material optical signal transport properties, mechanical strength and material cost etc. are selected, the multiple choices that provide for the design of product.
[description of drawings]
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 has shown a kind of schematic cross-section of cavity body filter in the prior art;
Fig. 2 has shown a kind of partial structurtes schematic diagram of cavity body filter product in the prior art;
Fig. 3 has shown the schematic cross-section according to the cavity body filter of first embodiment of the invention;
Fig. 4 has shown the schematic cross-section according to the cavity body filter of second embodiment of the invention;
Fig. 5 has shown the schematic cross-section according to the cavity body filter of third embodiment of the invention;
Fig. 6 has shown the schematic partial cross-sectional view according to the cavity body filter of fourth embodiment of the invention;
Fig. 7 has shown the partial structurtes schematic diagram according to the cavity body filter product of fourth embodiment of the invention;
Fig. 8 has shown the schematic cross-section according to the cavity body filter of fifth embodiment of the invention;
Fig. 9 has shown the schematic cross-section according to the cavity body filter of sixth embodiment of the invention; And
Figure 10 has shown the partial structurtes schematic diagram according to the cavity body filter product of sixth embodiment of the invention.
[embodiment]
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses a kind of cavity body filter, comprise cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod as inserts with cavity or cover plate die cast.
The embodiment of the invention also discloses a kind of communication equipment, this communication equipment comprises cavity body filter above, and cavity body filter is located at the transceiver circuit part of communication equipment, is used for signal is selected.
The embodiment of the invention also provides a kind of manufacture method of cavity body filter, in this manufacture method, earlier resonant rod is shaped to inserts via punching press, die casting or machining mode, then with resonant rod as inserts with cavity or cover plate die cast, make resonant rod and cavity or cover plate with the mosaic mode structure that closely links into an integrated entity.
The embodiment of the invention also provides a kind of frequency communication devices, and this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod as inserts with cavity or cover plate die cast.
Certainly, the cavity body filter of the embodiment of the invention also comprises various other conventional components or structure, herein, present embodiment is only to being described with present embodiment inventive point relevant portion, concrete parts or structure, can not be construed as limiting the invention with reference to the suitable increase and decrease of existing conventional implementation.
Embodiment one
A kind of cavity body filter 30, as shown in Figure 3, this cavity body filter 30 comprises cavity 31, cover plate 32 and resonant rod 33.Cover plate 32 capping cavitys 31 form resonant cavity 310.With cavity 31 or cover plate 32 die casts, and resonant rod 33 is positioned at the bottom of cavity 31 and is integrative-structure with cavity 31 resonant rod 33 as inserts.
In the present embodiment, the bottom of resonant rod 33 is embedded in the cavity 31, and promptly resonant rod 33 is die cast as one as inserts and cavity 31.
Particularly, this resonant rod 33 is shaped to inserts via punching press, die casting or machining mode earlier, utilize again this resonant rod 33 as inserts with cavity 31 die casting, make resonant rod 33 and cavity 31 with the mosaic mode structure that closely links into an integrated entity.
Those skilled in the art understand easily, resonant rod 33 can adopt not with resonant cavity 310, and same material is cast into one, for example the material of resonant rod 33 employings is copper or iron, the material of resonant cavity 310 then can adopt aluminium alloy, and signal transport properties, mechanical strength and the material cost etc. of concrete visual material are selected.
In the present embodiment, the die casting junction surface of described resonant rod and cavity is provided with flange, is used for carrying out spacing in inside cavity to resonant rod.
Embodiment two
A kind of cavity body filter 40, as shown in Figure 4, this cavity body filter 40 comprises cavity 41, cover plate 42 and resonant rod 43, in the present embodiment, identical among cavity body filter 40 its general configuration and the embodiment one, its distinctive points is that the die casting junction surface of described resonant rod and cavity is provided with groove 432, is used for carrying out spacing in inside cavity to resonant rod.For the ease of in the press casting procedure resonant rod being positioned, described resonant rod 43 can be run through cavity 41 bottoms and with the concordant setting in cavity 41 bottom surfaces.
Particularly, the depressed part of cavity body filter 40 also has second flange 412, resonant rod 43 also has the groove 432 with second flange, 412 couplings, so, resonant rod 43 cooperating and groove 432 and the bottom that is embedded in cavity 41 cooperating of second flange 412 by lug boss 431 and first flange 411.In the present embodiment, the bottom of resonant rod is embedded in the cavity, and it links closely, and the signal transmission is good, loosening, the obscission of screw assembling can not occur utilizing.
Embodiment three
A kind of cavity body filter 50, as shown in Figure 5, this cavity body filter 50 comprises cavity 51, cover plate 52 and resonant rod 53.Cover plate 52 capping cavitys 51 form resonant cavity 510.In resonant cavity 510, and resonant rod 53 is positioned at the bottom of cavity 51 and is integrative-structure with cavity 51 resonant rod 53 as inserts die casting.
In the present embodiment, resonant rod 53 can adopt different materials with cavity 51, for example resonant rod 53 adopts copper product or iron material, and 51 of cavitys can adopt materials such as aluminium alloy, and concrete visual material signal transport properties, mechanical strength and material cost etc. are selected.
In a preferred embodiment, the thickness of resonant rod 53 is less than the thickness of cover plate 52 and cavity 51, and resonant rod 53 can be by the sheet stamping moulding, and this resonant rod 53 has recess 530, and resonant rod 53 is all cylindrical with recess 530.The top closure of resonant rod 53.The sidewall of resonant rod 53 and its bottom is for seamlessly transitting 531, and the position that resonant rod 53 is connected with resonant cavity 510 is also for seamlessly transitting 532.Resonant rod 53 has lug boss 533, and lug boss 533 and resonant rod 53 are for seamlessly transitting 532.The bottom of resonant cavity 510 has depressed part (scheming not shown), this depressed part has first flange 511 and second flange 512, form the groove (scheming not shown) that holds lug boss 533 between first flange 511 and second flange 512, the position that first flange 511 is connected with resonant rod 53 becomes to seamlessly transit 513 configuration, and resonant rod 53 is embedded in the bottom of resonant cavity 510 by lug boss 533 and first flange 511 and cooperating of second flange 512.
In the present embodiment, resonant rod is embedded in the cavity, and it links closely, and the signal transmission is good, loosening, the obscission of screw assembling can not occur utilizing.
Embodiment four
A kind of cavity body filter 60, the fit of its cover plate 62 and resonant rod 63 as shown in Figure 6, this resonant rod 63 is positioned on the cover plate 62 and with cover plate 62 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 63 is embedded in the cover plate 62, and promptly resonant rod 63 is die cast as one as inserts and cover plate 62.
Particularly, this resonant rod 63 is shaped to inserts via punching press, die casting or machining mode earlier, utilize again this resonant rod 63 as inserts with cover plate 62 die casting, make resonant rod 63 and cover plate 62 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 60 of present embodiment is roughly the same with embodiment two, and it only is resonant rod 63 is arranged on the cover plate 62 as inserts without part, and therefore, identical structure does not repeat them here.
Please in the lump referring to Fig. 7, Fig. 7 has shown the partial structurtes schematic diagram of the cavity body filter product of fifth embodiment of the invention, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and the signal transmission is good, and it is fastening to need not screw.
Embodiment five
A kind of cavity body filter 70, the fit of its cover plate 72 and resonant rod 73 as shown in Figure 8, this resonant rod 73 is positioned on the cover plate 72 and with cover plate 72 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 73 is embedded in the cover plate 72, and promptly resonant rod 73 is die cast as one as inserts and cover plate 72.
Particularly, this resonant rod 73 is shaped to inserts via punching press, die casting or machining mode earlier, utilizes this resonant rod 73 to come die casting cover plate 72 as inserts again, makes resonant rod 73 and cover plate 72 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 70 of present embodiment is roughly the same with embodiment five, its without part be resonant rod 73 run through cover plate 72 and with the concordant setting of cover plate 72 end faces.Herein, identical structure does not repeat them here.
Can be in the lump referring to Fig. 8, the partial structurtes schematic diagram of the cavity body filter product of present embodiment is identical with embodiment five, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and the signal transmission is good, and it is fastening to need not screw.
Embodiment six
A kind of cavity body filter 80, the fit of its cover plate 82 and resonant rod 83 as shown in Figure 9, this resonant rod 83 is positioned on the cover plate 82 and with cover plate 82 and is integrative-structure.
In the present embodiment, the bottom of resonant rod 83 is embedded in the cover plate 82, and promptly resonant rod 83 is die cast as one with inserts module and cover plate 82.
Particularly, this resonant rod 83 is shaped to inserts via modes such as punching presses earlier, utilize again this resonant rod 83 as inserts with cover plate 82 die casting, make resonant rod 83 and cover plate 82 with the mosaic mode structure that closely links into an integrated entity.
The cavity body filter 80 of present embodiment is roughly the same with embodiment four, and it only is resonant rod 83 is arranged on the cover plate 82 as inserts without part, and therefore, identical structure does not repeat them here.
Please in the lump referring to Figure 10, Figure 10 has shown the partial structurtes schematic diagram of the cavity body filter product of fifth embodiment of the invention, and as shown in the figure, a plurality of resonant rods are embedded on the cover plate, and it links closely, and the signal transmission is good, and it is fastening to need not screw.
Embodiment seven
A kind of communication equipment, this communication are established and are comprised the above described cavity body filter of each embodiment, and this cavity body filter is located at the transceiver circuit part of this communication equipment, is used for signal is selected.
Embodiment eight
A kind of manufacture method of cavity body filter.The embodiment of the invention also provides a kind of manufacture method of cavity body filter, in this manufacture method, earlier resonant rod is shaped to inserts via punching press, die casting or machining mode, then with resonant rod as inserts with cavity or cover plate die cast, make resonant rod and cavity or cover plate with the mosaic mode structure that closely links into an integrated entity.
Embodiment nine
A kind of frequency communication devices.The embodiment of the invention also provides a kind of frequency communication devices, and this frequency communication devices comprises cavity, cover plate and resonant rod, wherein, cover plate capping cavity, resonant rod as inserts with cavity or cover plate die cast.
In practice, above-mentioned frequency communication devices is cavity body filter, single multiplexer, duplexer, multiplexer, mixer or splitter.
In sum, those skilled in the art understand easily, the cavity body filter that the embodiment of the invention provides is arranged on the resonant rod integral type on cavity bottom or the cover plate when manufacturing, need not mounting screw, high efficiency and time conservation, with low cost, resonant rod is good with contacting of cavity or cover plate, has optimized the singal reporting code of cavity body filter greatly.Because of resonant rod is the inserts modular form, so itself and cavity can adopt different materials, signal transport properties, mechanical strength and the material cost etc. of concrete visual material are selected.
Need to prove that in order to narrate conveniently, all only shown a resonant cavity in the application in each embodiment accompanying drawing, the cavity body filter in the practical application can comprise a plurality of resonant cavitys.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (13)
1. a cavity body filter is characterized in that, described cavity body filter comprises cavity, cover plate and resonant rod, wherein, the described cavity of described cover plate capping, described resonant rod as inserts with described cavity or described cover plate die cast.
2. cavity body filter according to claim 1 is characterized in that, with described cavity die cast, and made by same material not by described resonant rod and described cavity as inserts for described resonant rod.
3. cavity body filter according to claim 2 is characterized in that described resonant rod is shaped to inserts via punching press, die casting or machining mode.
4. cavity body filter according to claim 3 is characterized in that, the die casting junction surface of described resonant rod and described cavity is provided with flange or groove, is used for carrying out spacing in the inside of described cavity to resonant rod.
5. cavity body filter according to claim 4 is characterized in that described resonant rod runs through described cavity bottom, is used at press casting procedure described resonant rod being positioned.
6. according to each described cavity body filter among the claim 1-5, it is characterized in that, described resonant rod is arranged at described cavity bottom, described resonant rod has recess, the bottom surface of described recess is higher than the inner chamber bottom surface of described cavity, so that electroplate liquid is easy to flow out when the inwall of described recess is electroplated.
7. cavity body filter according to claim 1 is characterized in that, with described cover plate die cast, and made by same material not by described resonant rod and described cover plate as inserts for described resonant rod.
8. cavity body filter according to claim 7 is characterized in that, the die casting junction surface of described resonant rod and described cover plate is provided with flange or groove, is used for carrying out spacing in the inside of described cavity to described resonant rod.
9. cavity body filter according to claim 8 is characterized in that, described resonant rod runs through described cover plate plate body, is used at press casting procedure described resonant rod being positioned.
10. a communication equipment is characterized in that, described communication equipment comprises that described cavity body filter is located at the transceiver circuit part of described communication equipment, is used for signal is selected according to each described cavity body filter among the claim 1-9.
11. the manufacture method of a cavity body filter, it is characterized in that, earlier resonant rod is shaped to inserts via punching press, die casting or machining mode, utilize then described resonant rod as inserts with cavity or cover plate die cast, make described resonant rod and described cavity or the cover plate structure that links into an integrated entity.
12. a frequency communication devices is characterized in that described frequency communication devices comprises cavity, cover plate and resonant rod, wherein, the described cavity of described cover plate capping, described resonant rod as inserts with described cavity or described cover plate die cast.
13. frequency communication devices according to claim 12 is characterized in that, described frequency communication devices is cavity body filter, single multiplexer, duplexer, multiplexer, mixer or splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010106051812A CN102074776A (en) | 2010-12-24 | 2010-12-24 | Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device |
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| CN2010106051812A CN102074776A (en) | 2010-12-24 | 2010-12-24 | Cavity filter and manufacturing method thereof, communication equipment and radio-frequency communication device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248149A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐航压铸有限公司 | Method for eliminating leakage of 4G18 die-casting aluminum alloy engine cylinder shell by using hole insert |
| CN102637923A (en) * | 2012-04-16 | 2012-08-15 | 中国电子科技集团公司第十研究所 | Debugging-free circular waveguide screw circular polarizer |
| CN102709629A (en) * | 2012-02-08 | 2012-10-03 | 武汉凡谷电子技术股份有限公司 | Mid frequency range high-power cavity filter |
| CN102738543A (en) * | 2012-06-05 | 2012-10-17 | 深圳光启创新技术有限公司 | Filter |
| CN104821421A (en) * | 2015-04-20 | 2015-08-05 | 深圳市大富科技股份有限公司 | Cavity filter, duplexer and radio frequency zooming-out equipment |
| KR20200004775A (en) * | 2018-07-04 | 2020-01-14 | (주)웨이브텍 | Method For Forming Combination Structures Between Components In Radio Frequency Filters |
| CN113070458A (en) * | 2020-01-06 | 2021-07-06 | 深圳市大富科技股份有限公司 | Preparation method of die for die casting, die, preparation method of cover plate and filter |
| JP2021530935A (en) * | 2018-07-04 | 2021-11-11 | ウェイブ テック カンパニー，リミテッド | Coupling structures between components of high frequency filters, and high frequency filters containing such coupling structures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008026493A1 (en) * | 2006-08-31 | 2008-03-06 | Panasonic Corporation | Filter device and method for manufacturing the same |
| CN201259915Y (en) * | 2008-09-02 | 2009-06-17 | 深圳市云海通讯股份有限公司 | Cavity filter |
| CN101546853A (en) * | 2009-04-29 | 2009-09-30 | 上海华为技术有限公司 | Die-casting diplexer and die-casting method |
| CN101704086A (en) * | 2009-11-26 | 2010-05-12 | 芜湖市金贸流体科技股份有限公司 | Precision aluminum-running-preventing die-casting device |
| CN201576731U (en) * | 2009-07-23 | 2010-09-08 | 大富（深圳）科技有限公司 | Cavity filter and connecting structure thereof |
| CN202004121U (en) * | 2010-12-24 | 2011-10-05 | 深圳市大富科技股份有限公司 | Cavity filter, communication equipment and radio frequency communication device |
-
2010
- 2010-12-24 CN CN2010106051812A patent/CN102074776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008026493A1 (en) * | 2006-08-31 | 2008-03-06 | Panasonic Corporation | Filter device and method for manufacturing the same |
| CN201259915Y (en) * | 2008-09-02 | 2009-06-17 | 深圳市云海通讯股份有限公司 | Cavity filter |
| CN101546853A (en) * | 2009-04-29 | 2009-09-30 | 上海华为技术有限公司 | Die-casting diplexer and die-casting method |
| CN201576731U (en) * | 2009-07-23 | 2010-09-08 | 大富（深圳）科技有限公司 | Cavity filter and connecting structure thereof |
| CN101704086A (en) * | 2009-11-26 | 2010-05-12 | 芜湖市金贸流体科技股份有限公司 | Precision aluminum-running-preventing die-casting device |
| CN202004121U (en) * | 2010-12-24 | 2011-10-05 | 深圳市大富科技股份有限公司 | Cavity filter, communication equipment and radio frequency communication device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248149A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐航压铸有限公司 | Method for eliminating leakage of 4G18 die-casting aluminum alloy engine cylinder shell by using hole insert |
| CN102248149B (en) * | 2011-07-15 | 2012-10-03 | 徐州徐航压铸有限公司 | Method for eliminating leakage of 4G18 die-casting aluminum alloy engine cylinder shell by using hole insert |
| CN102709629A (en) * | 2012-02-08 | 2012-10-03 | 武汉凡谷电子技术股份有限公司 | Mid frequency range high-power cavity filter |
| CN102637923A (en) * | 2012-04-16 | 2012-08-15 | 中国电子科技集团公司第十研究所 | Debugging-free circular waveguide screw circular polarizer |
| CN102738543A (en) * | 2012-06-05 | 2012-10-17 | 深圳光启创新技术有限公司 | Filter |
| CN104821421A (en) * | 2015-04-20 | 2015-08-05 | 深圳市大富科技股份有限公司 | Cavity filter, duplexer and radio frequency zooming-out equipment |
| KR20200004775A (en) * | 2018-07-04 | 2020-01-14 | (주)웨이브텍 | Method For Forming Combination Structures Between Components In Radio Frequency Filters |
| JP2021530935A (en) * | 2018-07-04 | 2021-11-11 | ウェイブ テック カンパニー，リミテッド | Coupling structures between components of high frequency filters, and high frequency filters containing such coupling structures |
| KR102361611B1 (en) * | 2018-07-04 | 2022-02-11 | (주)웨이브텍 | Method For Forming Combination Structures Between Components In Radio Frequency Filters |
| JP7239215B2 (en) | 2018-07-04 | 2023-03-14 | ウェイブ テック カンパニー，リミテッド | Method for forming coupling structure between parts of high frequency filter |
| CN113070458A (en) * | 2020-01-06 | 2021-07-06 | 深圳市大富科技股份有限公司 | Preparation method of die for die casting, die, preparation method of cover plate and filter |
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Application publication date: 20110525 |