CN107004931A - Radio frequency remote equipment, duplexer, wave filter and tap fixture - Google Patents
Radio frequency remote equipment, duplexer, wave filter and tap fixture Download PDFInfo
- Publication number
- CN107004931A CN107004931A CN201480084017.8A CN201480084017A CN107004931A CN 107004931 A CN107004931 A CN 107004931A CN 201480084017 A CN201480084017 A CN 201480084017A CN 107004931 A CN107004931 A CN 107004931A
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- CN
- China
- Prior art keywords
- tap
- clamping
- filter
- clamping groove
- fixing hole
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/04—Fixed joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention provides a kind of radio frequency remote equipment, duplexer, wave filter and tap fixture, the tap fixture is used for the fixed tap with plug division, tap fixture includes cylindrical body, cylindrical body one end offers the neck for prolonging and extending radially through, neck bottom is provided with jack, and the lateral wall that cylindrical body opens up neck one end has flange；The plug division of tap is plugged in jack, and the plug division of tap is fitted close with jack, deformed upon when the flange of cylindrical body is squeezed so that the inwall of neck clamps tap, the tap fixture processing technology is simple, tap or the assembling of tap fixture are easy and firm, it is ensured that filter signal index is stable.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of communication, in particular to radio remote equipment, a duplexer, a filter and a tap fixing piece.
[ background of the invention ]
The tapped piece is connected between the resonator and the connector of the filter, and is used for transmitting signals, the device for fixing the tapped piece in the prior art is shown in figure 1, the fixing device comprises a cylindrical clamping seat 1 and a square fixing seat 2, a square groove 4 for accommodating the tapped piece 3 is formed in the middle of the cylindrical clamping seat 1, the square groove 4 has a corner cleaning characteristic 5, the end part of the clamping seat 1 is provided with a fine groove 6 communicated with the square groove, the square fixing seat 2 is provided with the square groove and a round hole 8 for accommodating the clamping seat 1, when the tapped piece 3 is installed, the tapped piece 3 penetrates the fine groove 6 and is abutted to the square groove 4, then the cylindrical clamping seat 1 is assembled into the square fixing seat 2, and the fixing mode has the following defects:
(1) the processing technology of the square groove 4 and the thin groove 6 of the cylindrical clamping seat 1 is complex, the dimensional tolerance of the characteristics is strict, and the processing cost is high;
(2) when the cylindrical clamping seat is assembled with the tap piece 3, the cylindrical clamping seat is required to be extruded and assembled from the thin groove 6, the assembly difficulty is high, the deformation of the cylindrical clamping seat 1 before the integral assembly is large, and the cylindrical clamping seat 1 is easy to damage;
(3) after the cylindrical clamping seat 1 is assembled in the round hole 8, the cylindrical clamping seat is easy to move up and down, so that the tap piece is unstable in fixation and the signal index of the filter is influenced.
[ summary of the invention ]
The invention provides radio frequency remote equipment, a duplexer, a filter and a tap fixing piece, which aim to solve the technical problems that the processing technology of a square groove and a thin groove of a cylindrical clamping seat is complex, the assembly difficulty is high and the signal index of the filter is influenced.
In order to solve the technical problems, the invention adopts a technical scheme that: the tap fixing piece is used for fixing a tap with an inserting part and comprises a columnar body, wherein one end of the columnar body is provided with a clamping groove which penetrates in the radial direction, the bottom of the clamping groove is provided with an inserting hole, and the outer side wall of the end, provided with the clamping groove, of the columnar body is provided with a flange; the inserting part of the tap is inserted into the jack, the inserting part of the tap is tightly matched with the jack, and the flange of the columnar body deforms when being extruded so that the inner wall of the clamping groove can clamp the tap.
Wherein the insertion hole is a through hole.
Wherein, a gap is arranged between the insertion part and the bottom of the jack.
Wherein, the surface of the plug part is coated with an insulating material.
Wherein, the jack is a blind hole.
The cylindrical body comprises a first clamping section and a second clamping section, the first clamping section is provided with a first clamping groove, and the flange is arranged on the outer side wall of the first clamping section; the second clamping section is connected with the first clamping section and is provided with a second clamping groove; wherein, first clamp section includes left clamping part and right clamping part, and left clamping part and right clamping part draw close each other so that the deformation space of first clamp groove diminishes when compressed to compress tightly the tap of centre gripping in the second clamp groove.
The tapping fixing piece further comprises a clamping piece, and the clamping piece is sleeved on the first clamping section, so that the left clamping portion and the right clamping portion are mutually closed when being pressed, and the first clamping groove shape is reduced.
Wherein, take a percentage the mounting integrated into one piece.
In order to solve the technical problem, the invention also adopts another technical scheme, and provides a filter, which comprises a cavity, a cover plate and a resonator, wherein the cover plate covers the cavity, the resonator is arranged in the cavity, the filter also comprises a tap fixing piece, the tap fixing piece is used for fixing a tap with an inserting part, the tap fixing piece comprises a columnar body, one end of the columnar body is provided with a clamping groove which penetrates in the radial direction, the bottom of the clamping groove is provided with an inserting hole, and the outer side wall of one end of the columnar body, provided with the clamping groove; the plug part of the tap is inserted in the jack and is tightly matched with the jack; the cavity is provided with a fixing hole, the tap fixing piece is inserted in the fixing hole, and the inner wall of the fixing hole extrudes the flange of the columnar body so as to enable the inner wall of the clamping groove to clamp the tap.
Wherein the insertion hole is a through hole.
Wherein, a gap is arranged between the insertion part and the bottom of the jack.
Wherein, the surface of the plug part is coated with an insulating material.
Wherein, the jack is a blind hole.
The cylindrical body comprises a first clamping section and a second clamping section, the first clamping section is provided with a first clamping groove, and the flange is arranged on the outer side wall of the first clamping section; the second clamping section is connected with the first clamping section and is provided with a second clamping groove; wherein, first clamp section includes left clamping part and right clamping part, and left clamping part and right clamping part draw close each other so that the deformation space of first clamp groove diminishes when compressed to compress tightly the tap of centre gripping in the second clamp groove.
The fixing holes comprise a first fixing hole and a second fixing hole, and the first fixing hole acts on the first clamping section to enable the left clamping part and the right clamping part to be close to each other, so that the deformation space of the first clamping groove is reduced; the second fixing hole is communicated with the first fixing hole and used for fixing the second clamping section.
Wherein, the diameter or width of the first fixing hole is the same as that of the second fixing hole.
Wherein the diameter or width of the first fixing hole is larger than the second fixing hole and smaller than the first clamping section.
Wherein, take a percentage the mounting integrated into one piece.
In order to solve the above technical problem, the present invention further adopts another technical solution to provide a duplexer, which includes a receiving filter and a transmitting filter, wherein the receiving filter is connected between a receiving terminal and an antenna terminal, the transmitting filter is connected between a transmitting terminal and the antenna terminal, and the receiving filter and the transmitting filter are the above filters.
In order to solve the above technical problem, the present invention further adopts another technical solution to provide a radio remote device, which includes a radio transceiver module, a power amplifier module and the duplexer, wherein the radio transceiver module is connected to the power amplifier module, and the power amplifier module is connected to the duplexer.
The invention has the beneficial effects that: the invention provides a radio frequency remote device, a duplexer, a filter and a tap fixing piece, which are different from the prior art, wherein the tap fixing piece comprises a columnar body, one end of the columnar body is provided with a clamping groove which penetrates along the radial direction, and the bottom of the clamping groove is provided with a jack which is tightly matched with an inserting part of a tap.
[ description of the drawings ]
FIG. 1 is a prior art tap fixture;
FIG. 2 is a perspective view of a cylindrical body of the tap holder of the present invention;
FIG. 3 is a cross-sectional view of the cylindrical body of FIG. 1;
fig. 4 is an assembly view of the cavity and tap holder of the filter of the present invention;
FIG. 5 is a partial cross-sectional view of the assembly of the cavity and tap fixture of FIG. 4;
fig. 6 is a schematic diagram of the structure of the duplexer of the present invention;
fig. 7 is a block diagram of the duplexer of the present invention.
[ detailed description ] embodiments
Certain terms are used throughout the description and following claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. In the present specification and claims, the difference in name is not used as a means for distinguishing between components, but a difference in function of a component is used as a reference for distinguishing between components. The present invention will be described in detail below with reference to the accompanying drawings and examples.
The invention provides a tap fixing piece of a filter, which is used for fixing a tap with an inserting part and comprises a columnar body, wherein one end of the columnar body is provided with a clamping groove which penetrates along the radial direction, the bottom of the clamping groove is provided with an inserting hole, and the outer side wall of one end of the columnar body, which is provided with the clamping groove, is provided with a flange; the inserting part of the tap is inserted into the jack, the inserting part of the tap is tightly matched with the jack, and the flange of the columnar body deforms when being extruded so that the inner wall of the clamping groove can clamp the tap.
Wherein the insertion hole is a through hole.
Wherein, a gap is arranged between the insertion part and the bottom of the jack.
Wherein, the surface of the plug part is coated with an insulating material.
Wherein, the jack is a blind hole.
The cylindrical body comprises a first clamping section and a second clamping section, the first clamping section is provided with a first clamping groove, and the flange is arranged on the outer side wall of the first clamping section; the second clamping section is connected with the first clamping section and is provided with a second clamping groove; wherein, first clamp section includes left clamping part and right clamping part, and left clamping part and right clamping part draw close each other so that the deformation space of first clamp groove diminishes when compressed to compress tightly the tap of centre gripping in the second clamp groove.
The tapping fixing piece further comprises a clamping piece, and the clamping piece is sleeved on the first clamping section, so that the left clamping portion and the right clamping portion are mutually closed when being pressed, and the first clamping groove shape is reduced.
Wherein, take a percentage the mounting integrated into one piece.
The invention also provides a filter, which comprises a cavity, a cover plate and a resonator, wherein the cover plate covers the cavity, the resonator is arranged in the cavity, the filter also comprises a tap fixing piece, the tap fixing piece is used for fixing a tap with an inserting part, the tap fixing piece comprises a columnar body, one end of the columnar body is provided with a clamping groove which penetrates along the radial direction, the bottom of the clamping groove is provided with an inserting hole, and the outer side wall of the columnar body, provided with the clamping groove, is provided with a flange; the plug part of the tap is inserted in the jack and is tightly matched with the jack; the cavity is provided with a fixing hole, the tap fixing piece is inserted in the fixing hole, and the inner wall of the fixing hole extrudes the flange of the columnar body so as to enable the inner wall of the clamping groove to clamp the tap.
Wherein the insertion hole is a through hole.
Wherein, a gap is arranged between the insertion part and the bottom of the jack.
Wherein, the surface of the plug part is coated with an insulating material.
Wherein, the jack is a blind hole.
The cylindrical body comprises a first clamping section and a second clamping section, the first clamping section is provided with a first clamping groove, and the flange is arranged on the outer side wall of the first clamping section; the second clamping section is connected with the first clamping section and is provided with a second clamping groove; wherein, first clamp section includes left clamping part and right clamping part, and left clamping part and right clamping part draw close each other so that the deformation space of first clamp groove diminishes when compressed to compress tightly the tap of centre gripping in the second clamp groove.
The fixing holes comprise a first fixing hole and a second fixing hole, and the first fixing hole acts on the first clamping section to enable the left clamping part and the right clamping part to be close to each other, so that the deformation space of the first clamping groove is reduced; the second fixing hole is communicated with the first fixing hole and used for fixing the second clamping section.
Wherein, the diameter or width of the first fixing hole is the same as that of the second fixing hole.
Wherein the diameter or width of the first fixing hole is larger than the second fixing hole and smaller than the first clamping section.
Wherein, take a percentage the mounting integrated into one piece.
The invention also provides a duplexer, which comprises a receiving filter and a transmitting filter, wherein the receiving filter is connected between the receiving terminal and the antenna terminal, the transmitting filter is connected between the transmitting terminal and the antenna terminal, and the receiving filter and the transmitting filter are the filters.
The invention also provides radio frequency remote equipment which comprises a radio frequency transceiver module, a power amplifier module and the duplexer, wherein the radio frequency transceiver module is connected with the power amplifier module, and the power amplifier module is connected with the duplexer.
Referring to fig. 2 and 3, fig. 2 is a perspective view of a cylindrical body of the tap holder of the present invention, and fig. 3 is a sectional view of the cylindrical body of fig. 1.
The tap fixing piece 100 of the filter is used for clamping and fixing the tap 30, the tap 30 is provided with the inserting part 31, the tap fixing piece 100 comprises a columnar body 10, one end of the columnar body 10 is provided with a clamping groove 11 which penetrates along the radial direction, the bottom of the clamping groove 11 is provided with the jack 23, the outer side wall of one end of the columnar body 10, which is provided with the clamping groove 11, is provided with the flange 30, the flange 30 deforms when being extruded so that the inner wall of the clamping groove 11 clamps the tap 30, the inserting part 31 is inserted into the jack 23, the inserting part 31 is tightly matched with the jack 23, the jack 23 can be a through hole or a blind hole, and a gap 24 is formed between the inserting part 31 and the bottom of the jack 23.
The columnar body 10 comprises a first clamping section 12 and a second clamping section 13, the first clamping section 12 is provided with a first clamping groove 21, and a flange 30 is arranged on the outer side wall of the first clamping section 12; the second clamping section 13 is connected with the first clamping section 12 and is provided with a second clamping groove 22; the first clamping section 12 includes a left clamping portion 121 and a right clamping portion 122, and the left clamping portion 121 and the right clamping portion 122 are pressed to close each other to reduce a deformation space of the first clamping groove 21, so as to press the tap 30 clamped in the second clamping groove 22.
In other embodiments, the tap fixing member 100 may further include a clamping member, which is sleeved on the first clamping section 12, so that the left clamping portion 121 and the right clamping portion 122 are close to each other when being pressed, thereby reducing the first clamping groove 21 and the deformation space.
The tap fixture 100 of the present invention may be integrally formed.
Referring to fig. 4 and 5, fig. 4 is an assembly view of the cavity and the tap fixing member of the filter according to the present invention; fig. 5 is a partial cross-sectional view of the assembly of the cavity and tap fixture of fig. 4.
The invention also provides a filter, which comprises a cavity 40, a cover plate, a resonator and the tap fixing piece 100, wherein the cover plate covers the cavity 40, the resonator is arranged in the cavity 40, the cavity 40 is provided with a fixing hole 410, the tap fixing piece 100 is inserted in the fixing hole 410, and the inner wall of the fixing hole 410 extrudes the flange 30 of the columnar body 10 so that the inner wall of the clamping groove 11 clamps the tap 30.
The fixing hole 410 includes a first fixing hole 411 and a second fixing hole 412, the first fixing hole 411 acts on the first clamping section 12 to make the left clamping portion 121 and the right clamping portion 122 close to each other so as to make the deformation space of the first clamping groove 21 smaller; the second fixing hole 412 communicates with the first fixing hole 411 for fixing the second clamping section 13, and the diameter or width of the first fixing hole 411 is the same as that of the second fixing hole 412, but in other embodiments, the diameter or width of the first fixing hole 411 may be larger than that of the second fixing hole 412 and smaller than that of the first clamping section 12.
The cylindrical body 10 and the cavity 40 of the present invention may be square, cylindrical or other shapes, and of course, when the cylindrical body 10 is square, the fixing hole 410 is correspondingly square, and when the cylindrical body 10 is cylindrical, the fixing hole 410 is correspondingly circular.
Referring to fig. 6, fig. 6 is a schematic diagram of the duplexer of the present invention, the duplexer 50 of the present invention includes a receiving filter 51 and a transmitting filter 52, the receiving filter 51 is connected between a receiving terminal 53 and an antenna terminal 54, the transmitting filter 52 is connected between a transmitting terminal 55 and the antenna terminal 54, and the receiving filter 51 and the transmitting filter 52 are the above-mentioned filters.
Referring to fig. 7, fig. 7 is a block diagram of a duplexer of the present invention, a radio remote device 60 of the present invention includes a radio transceiver module 61, a power amplifier module 62 and the duplexer 50, the radio transceiver module 60 is connected to the power amplifier module 62, and the power amplifier module 62 is connected to the duplexer 50.
The invention provides a radio frequency remote device 60, a duplexer 50, a filter and a tap fixing piece 100, wherein the tap fixing piece 100 comprises a columnar body 10, one end of the columnar body is provided with a clamping groove 11 which penetrates along the radial direction, the bottom of the clamping groove 11 is provided with a jack 23 which is tightly matched with an inserting part 31, the tap fixing piece 100 is simple in processing technology, a tap 30 or the tap fixing piece 100 is simple and convenient to assemble and stable, and the stability of a filter signal index is ensured.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (20)
- The tap fixing piece of the filter is characterized by being used for fixing a tap with an inserting part and comprising a columnar body, wherein one end of the columnar body is provided with a clamping groove which penetrates in the radial direction, the bottom of the clamping groove is provided with a jack, and the outer side wall of one end of the columnar body, provided with the clamping groove, is provided with a flange; the plug part of the tap is inserted into the jack, the plug part of the tap is tightly matched with the jack, and the flange of the columnar body deforms when being extruded so that the inner wall of the clamping groove clamps the tap.
- The tap holder of claim 1 wherein said receptacles are through holes.
- The tap holder of claim 2 wherein the mating portion is spaced from the bottom of the socket.
- The tap holder of claim 2 wherein said mating portion is surface coated with an insulating material.
- The tap holder of claim 1 wherein the receptacle is a blind hole.
- The tap holder of claim 1, wherein the cylindrical body comprises:the first clamping section is provided with a first clamping groove, and the flange is arranged on the outer side wall of the first clamping section;the second clamping section is connected with the first clamping section and is provided with a second clamping groove;the first clamping section comprises a left clamping portion and a right clamping portion, the left clamping portion and the right clamping portion are mutually close to enable the deformation space of the first clamping groove to be small when being pressed, and therefore the tap is clamped in the second clamping groove in a pressing mode.
- The tap fixing member according to claim 6, further comprising a clamping member sleeved on the first clamping section so that the left clamping portion and the right clamping portion are drawn together when pressed, thereby realizing the narrowing of the first clamping groove.
- The tap holder of claim 1, wherein the tap holder is integrally formed.
- A filter comprises a cavity, a cover plate and a resonator, wherein the cover plate covers the cavity, and the resonator is arranged in the cavity; the plug part of the tap is inserted into the jack, and the plug part of the tap is tightly matched with the jack; the cavity is provided with a fixing hole, the tap fixing piece is inserted into the fixing hole, and the inner wall of the fixing hole extrudes the flange of the columnar body so that the inner wall of the clamping groove clamps the tap.
- The tap holder of claim 9 wherein said receptacles are through holes.
- The filter of claim 10, wherein the plug portion has a gap with a bottom of the receptacle.
- The tap holder of claim 10 wherein said mating portion is surface coated with an insulating material.
- The tap holder of claim 9 wherein said receptacles are blind holes.
- The filter of claim 9, wherein the cylindrical body comprises:the first clamping section is provided with the first clamping groove, and the flange is arranged on the outer side wall of the first clamping section;a second clamping section connected with the first clamping section and provided with the second clamping groove;the first clamping section comprises a left clamping portion and a right clamping portion, the left clamping portion and the right clamping portion are mutually close to enable the deformation space of the first clamping groove to be small when being pressed, and therefore the tap is clamped in the second clamping groove in a pressing mode.
- The filter of claim 14, wherein the fixing hole comprises:the first fixing hole acts on the first clamping section to enable the left clamping part and the right clamping part to be close to each other, so that the deformation space of the first clamping groove is reduced;and the second fixing hole is communicated with the first fixing hole and is used for fixing the second clamping section.
- The filter of claim 15, wherein the first fixing hole has the same diameter or width as the second fixing hole.
- The filter of claim 15, wherein the first securing hole has a diameter or width greater than the second securing hole and less than the first clamping section.
- The filter of claim 9, wherein the tap fixture is integrally formed.
- A duplexer comprising a receive filter and a transmit filter, the receive filter being connected between a receive terminal and an antenna terminal, the transmit filter being connected between a transmit terminal and the antenna terminal, characterized in that the receive filter and the transmit filter are filters according to any of claims 9 to 18.
- A radio remote device comprising a radio transceiver module, a power amplifier module and the duplexer of claim 19, wherein the radio transceiver module is connected to the power amplifier module, and the power amplifier module is connected to the duplexer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/095870 WO2016106672A1 (en) | 2014-12-31 | 2014-12-31 | Remote radio device, duplexer, filter and tap fixing member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107004931A true CN107004931A (en) | 2017-08-01 |
| CN107004931B CN107004931B (en) | 2019-06-11 |
Family
ID=56283946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480084017.8A Active CN107004931B (en) | 2014-12-31 | 2014-12-31 | Radio frequency remote equipment, duplexer, filter and tap fixing piece |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107004931B (en) |
| WO (1) | WO2016106672A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09275304A (en) * | 1996-04-08 | 1997-10-21 | Nec Eng Ltd | Band filter |
| CN1723403A (en) * | 2002-11-13 | 2006-01-18 | 梁宽淑 | Optical contact module |
| CN201412426Y (en) * | 2009-06-10 | 2010-02-24 | 大富（深圳）科技有限公司 | Screw device and chamber wave filter applying same |
| US20100271153A1 (en) * | 2009-04-23 | 2010-10-28 | Hon Hai Precision Industry Co., Ltd. | Fixation arrangement for resonator of cavity filter |
| CN101924334A (en) * | 2009-06-12 | 2010-12-22 | 海洋王照明科技股份有限公司 | Lead sheath |
| CN202121038U (en) * | 2011-06-17 | 2012-01-18 | 深圳市大富科技股份有限公司 | Cavity filter and communication device |
| CN202585795U (en) * | 2012-05-17 | 2012-12-05 | 深圳市大富科技股份有限公司 | Wire fixing column and cavity filter having same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202103147U (en) * | 2011-06-01 | 2012-01-04 | 摩比天线技术（深圳）有限公司 | Coupling device for port of wave filter |
| CN202259599U (en) * | 2011-10-18 | 2012-05-30 | 武汉凡谷电子技术股份有限公司 | Tubular main rod assembly structure |
| CN203553311U (en) * | 2013-11-08 | 2014-04-16 | 武汉凡谷电子技术股份有限公司 | Cylindrical integrated low pass installation structure |
-
2014
- 2014-12-31 WO PCT/CN2014/095870 patent/WO2016106672A1/en active Application Filing
- 2014-12-31 CN CN201480084017.8A patent/CN107004931B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09275304A (en) * | 1996-04-08 | 1997-10-21 | Nec Eng Ltd | Band filter |
| CN1723403A (en) * | 2002-11-13 | 2006-01-18 | 梁宽淑 | Optical contact module |
| US20100271153A1 (en) * | 2009-04-23 | 2010-10-28 | Hon Hai Precision Industry Co., Ltd. | Fixation arrangement for resonator of cavity filter |
| CN201412426Y (en) * | 2009-06-10 | 2010-02-24 | 大富（深圳）科技有限公司 | Screw device and chamber wave filter applying same |
| CN101924334A (en) * | 2009-06-12 | 2010-12-22 | 海洋王照明科技股份有限公司 | Lead sheath |
| CN202121038U (en) * | 2011-06-17 | 2012-01-18 | 深圳市大富科技股份有限公司 | Cavity filter and communication device |
| CN202585795U (en) * | 2012-05-17 | 2012-12-05 | 深圳市大富科技股份有限公司 | Wire fixing column and cavity filter having same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016106672A1 (en) | 2016-07-07 |
| CN107004931B (en) | 2019-06-11 |
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Address after: 233000 building 4, national financial incubation Industrial Park, 17 Yannan Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Dafu Technology (Anhui) Co., Ltd Patentee after: ANHUI DAFU ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 518108 the third industrial zone of Shajing Industrial Company, HouXiang Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. Patentee before: ANHUI DAFU ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |