CN112909463A - Low-loss high-selectivity clutter suppression type base station duplexer - Google Patents
Low-loss high-selectivity clutter suppression type base station duplexer Download PDFInfo
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- CN112909463A CN112909463A CN202110061560.8A CN202110061560A CN112909463A CN 112909463 A CN112909463 A CN 112909463A CN 202110061560 A CN202110061560 A CN 202110061560A CN 112909463 A CN112909463 A CN 112909463A
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- duplexer
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- base station
- selectivity
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- 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
- H01P1/207—Hollow waveguide filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/30—Auxiliary devices for compensation of, or protection against, temperature or moisture effects ; for improving power handling capability
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Abstract
The invention discloses a low-loss high-selectivity clutter suppression type base station duplexer, relates to the technical field of communication products, and aims to solve the problem that when the existing base station duplexer is used, internal signals are unstable due to the fact that the existing base station duplexer is easily influenced by external factors. The duplexer main part is installed to the below of going up movable gland structure, the below of duplexer main part is provided with down fixed bearing structure, firm base is installed to fixed bearing structure's below down, one side of fixed bearing structure is provided with the fixed block down, go up movable gland structure's top and install the control structure, the inside of duplexer main part is provided with annular inner chamber, damp-proof board is installed to fixed bearing structure's bottom down, the fixed surface of damp-proof board has the graphite block, and the fixed surface of graphite block and damp-proof board is connected, one side of graphite block is provided with wear-resisting piece, the fixed surface of bearing structure has anti-interference ware down.
Description
Technical Field
The invention relates to the technical field of communication products, in particular to a low-loss high-selectivity clutter suppression type base station duplexer.
Background
The duplexer is a main accessory of the different-frequency duplex radio station and the relay station, and has the function of isolating the transmitted and received signals and ensuring the normal operation of both receiving and transmitting. The receiving end filter resonates at the transmitting frequency and prevents the transmitting power from being in series with the receiver, and the transmitting end filter resonates at the receiving frequency. Some duplexers do not mark transmitting and receiving ends, but only mark LOW and HIGH, for example, a certain duplexer is LOW 450, HIGH 460, which means that the LOW end can be connected with 450 mega receiver HIGH end to connect with 460 mega transmitter, the LOW end can also be connected with 450 mega transmitter, the HIGH end is connected with 460 mega receiver, the transceiving frequency can be reversed, but the machine of the transmitting frequency 460 can not be connected with the 450 mega end of the duplexer to avoid damaging the radio station and the duplexer, and the duplexer is selected: the duplexer should be customized according to the station transmit and receive frequencies. The 400-million transceiving frequency difference 10MHZ duplexer has the working bandwidth of minus 250kHz and can ensure the isolation degree to be about 90 db.
When the existing base station duplexer is used, the existing base station duplexer is easily influenced by external factors, so that internal signals are unstable; therefore, the existing requirements are not met, and a low-loss high-selectivity clutter suppression type base station duplexer is proposed.
Disclosure of Invention
The invention aims to provide a low-loss high-selectivity clutter suppression type base station duplexer to solve the problem that the existing base station duplexer proposed in the background art is easily influenced by external factors when in use, so that internal signals are unstable.
In order to achieve the purpose, the invention provides the following technical scheme: low-loss high selectivity clutter suppression type basic station duplexer, including last activity gland structure, the duplexer main part is installed to the below of going up activity gland structure, the below of duplexer main part is provided with down fixed bearing structure, firm base is installed to the below of lower fixed bearing structure, one side of lower fixed bearing structure is provided with the fixed block, go up the top of activity gland structure and install control structure, the inside of duplexer main part is provided with the interior chamber of annular.
Preferably, the bottom of lower fixed bearing structure installs dampproofing board, the fixed surface of dampproofing board has the graphite piece, and the graphite piece is connected with the fixed surface of dampproofing board, one side of graphite piece is provided with wear-resisting piece, the fixed surface of bearing structure has anti-interference ware down, and anti-interference ware is connected with the fixed surface of bearing structure down.
Preferably, the sealing rubber limit is installed to the outer wall of fixed block, and sealing rubber limit and the outer wall integrated into one piece setting of fixed block, the one end of fixed block is provided with the regulating spindle, and the one end fixed connection of regulating spindle and fixed block.
Preferably, the display is installed to the upper end of control structure, and display and control structure's upper end fixed connection, control structure's surface mounting has signal emission module, control structure's inside is provided with the supply apparatus.
Preferably, a connection port is installed at one side of the power supply, and the power supply is electrically connected with the connection port through a wire line.
Preferably, spacing frame structure is installed to the front end of duplexer main part, and the front end integrated into one piece setting of spacing frame structure and duplexer main part, the internally mounted of spacing frame structure has the access port, one side of access port is provided with dismantles the protection steel sheet, the inner wall of duplexer main part is installed and is separated the temperature asbestos board, the one side that separates the temperature asbestos board is provided with the rubber sealing layer, and one side fixed connection of rubber sealing layer and the temperature-separating asbestos board.
Preferably, the surface mounting who goes up movable gland structure has heat abstractor, one side of heat abstractor is provided with adjusting bolt, the bolt post is installed to adjusting bolt's one end, and the one end fixed connection of bolt post and adjusting bolt, the outside of bolt post is provided with the bolt cover, the externally mounted of bolt cover has the metal loop, and the outside fixed connection of metal loop and bolt cover.
Preferably, a heat dissipation port is installed on one side of the heat dissipation device, an electric expansion piece is arranged at one end of the heat dissipation device, a temperature control sensor is installed inside the electric expansion piece, an air exhaust channel is arranged at one end of the electric expansion piece, a filter fiber net is installed on the inner wall of the air exhaust channel, and the filter fiber net is fixedly connected with the inner wall of the air exhaust channel.
Preferably, the butt joint hole is installed to the bottom of annular inner chamber, and the bottom fixed connection of butt joint hole and annular inner chamber, one side of butt joint hole is provided with the mounting hole, fixed ring baffle is installed to one side of mounting hole, fixed ring baffle's inner wall is provided with the suppression signal tinfoil intermediate layer, and the inner wall fixed connection of suppression signal tinfoil intermediate layer and fixed ring baffle.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the mutual matching of the upper movable gland structure, the lower fixed bearing structure and the duplexer main body, the influence of external signals on the inside can be well reduced, and the stable operation is ensured.
2. Through regulating spindle and the fixed block that sets up, when protecting the outside, the movable gland structure of opening that can be fine is convenient for adjust inside, avoided damaging the lid, increase the flexibility, promote the protectiveness, a plurality of heat abstractor of setting adopts the electronic expansion bend over-and-under type of drive heat dissipation, reduce the outside interference to inside, utilize accuse temperature inductor FT-AP, in time adjust the internal temperature, guarantee the thermal diffusivity, make the internal temperature suitable, thereby reduce electronic component's loss, guarantee the practicality, promote life.
3. A plurality of adjusting bolt and a plurality of butt joint hole that set up, the mounting structure of being convenient for, the guarantee is stable, promotes the steadiness, and the filtration fibre web that sets up can be effectual the dust when filtering taking a breath, avoids inside to receive the erosion, increases the protectiveness, utilizes graphite block and wear-resisting piece, reduces the magnetic field influence of below, the stability of guarantee internal signal.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic bottom view of the present invention;
FIG. 4 is a schematic front end view of the present invention;
FIG. 5 is an enlarged view of a portion of the upper movable gland structure of the present invention;
in the figure: 1. an upper movable gland structure; 2. a lower fixed load bearing structure; 3. a fixed block; 4. an interference eliminator; 5. sealing the rubber edge; 6. a duplexer main body; 7. a display; 8. a moisture-proof plate; 9. graphite blocks; 10. a wear-resistant block; 11. an adjustment shaft; 12. a heat sink; 13. adjusting the bolt; 14. a control structure; 15. a heat dissipation port; 16. a limiting frame structure; 17. an access port; 18. disassembling the protective steel plate; 19. a bolt sleeve; 20. a temperature control sensor; 21. a bolt column; 22. a metal ring; 23. an air exhaust channel; 24. filtering the web; 25. an electric expansion piece; 26. a thermal insulation asbestos sheet; 27. a rubber sealing layer; 28. an annular inner chamber; 29. a signal suppression tinfoil interlayer; 30. mounting holes; 31. a butt joint hole; 32. a connection port; 33. a power supply; 34. a signal transmitting module; 35. a wire line; 36. fixing the annular baffle; 37. and (5) stabilizing the base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: a low-loss high-selectivity clutter suppression type base station duplexer comprises an upper movable gland structure 1, a duplexer main body 6 is installed below the upper movable gland structure 1, a lower fixed bearing structure 2 is arranged below the duplexer main body 6, a stabilizing base 37 is installed below the lower fixed bearing structure 2, a fixed block 3 is arranged on one side of the lower fixed bearing structure 2, a control structure 14 is installed above the upper movable gland structure 1, an annular inner chamber 28 is arranged inside the duplexer main body 6, firstly, the whole structure is placed at a stable position by using the stabilizing base 37, firstly, an access port 17 connecting circuit inside a limiting frame structure 16 is used according to requirements, the annular inner chamber 28 inside the duplexer main body 6 is used, a plurality of filters are installed through a plurality of installation holes 30, limiting reinforcement is achieved by using a set fixed annular baffle 36, and a plurality of signal transmitting modules 34 are used, further improving the stability of signal transmission.
Further, dampproofing board 8 is installed to the bottom of lower fixed bearing structure 2, the surface mounting of dampproofing board 8 has graphite block 9, and graphite block 9 is connected with the fixed surface of dampproofing board 8, one side of graphite block 9 is provided with wear-resisting piece 10, the surface mounting of lower fixed bearing structure 2 has anti-interference ware 4, and anti-interference ware 4 is connected with the fixed surface of lower fixed bearing structure 2, when moving, through the mutually supporting of anti-interference ware 4 and inside inhibitory signal tinfoil intermediate layer 29, can effectually reduce the influence of external signal to inside, guarantee steady operation, regulating spindle 11 and fixed block 3 that set up, when opening the protection outside, movable gland structure 1 on opening that can be fine, be convenient for adjust inside, avoided damaging the lid, increase the flexibility, promote the protectiveness.
Further, sealing rubber limit 5 is installed to the outer wall of fixed block 3, and sealing rubber limit 5 sets up with the outer wall integrated into one piece of fixed block 3, the one end of fixed block 3 is provided with regulating spindle 11, and the one end fixed connection of regulating spindle 11 and fixed block 3, the temperature-isolating asbestos board 26 and the rubber sealing layer 27 that set up, can ensure that external factors do not influence inside operation and handle, promote stability, utilize simultaneously to dismantle protection steel sheet 18 and avoid the outside to receive environmental damage, promote overall structure's life.
Further, display 7 is installed to control structure 14's upper end, and display 7 and control structure 14's upper end fixed connection, control structure 14's surface mounting has signal emission module 34, control structure 14's inside is provided with supply unit 33, utilize a plurality of signal emission module 34, further promote signal emission's stability, when moving, through the mutually supporting of anti-interference ware 4 and inside suppression signal tinfoil intermediate layer 29, can effectually reduce the influence of external signal to inside, guarantee steady operation, regulating spindle 11 and fixed block 3 that set up, when starting the protection outside, movable gland structure 1 on opening that can be fine.
Further, connection port 32 is installed to one side of power supply 33, and power supply 33 passes through electric wire line 35 and connection port 32 electric connection, installs a plurality of wave filters through a plurality of mounting holes 30, utilizes the fixed ring baffle 36 that sets up to play spacing reinforcement, utilizes a plurality of signal emission module 34, further promotes signal emission's stability.
Further, spacing frame structure 16 is installed to the front end of duplexer main part 6, and the front end integrated into one piece setting of spacing frame structure 16 and duplexer main part 6, the internally mounted of spacing frame structure 16 has access port 17, access port 17's one side is provided with dismantles protection steel sheet 18, temperature-insulated asbestos board 26 is installed to duplexer main part 6's inner wall, one side of temperature-insulated asbestos board 26 is provided with rubber sealing layer 27, and rubber sealing layer 27 and one side fixed connection who separates temperature-insulated asbestos board 26.
Further, go up movable gland structure 1's surface mounting and have heat abstractor 12, one side of heat abstractor 12 is provided with adjusting bolt 13, bolt post 21 is installed to adjusting bolt 13's one end, and bolt post 21 and adjusting bolt 13's one end fixed connection, the outside of bolt post 21 is provided with bolt cover 19, the externally mounted of bolt cover 19 has metal ring 22, and the outside fixed connection of metal ring 22 and bolt cover 19, a plurality of adjusting bolt 13 and a plurality of butt joint hole 31, the mounting structure of being convenient for, the guarantee is stable, promote the steadiness, the filter fibre net 24 of setting, dust when can effectual filtration take a breath, avoid inside to receive the erosion, increase the protectiveness, utilize graphite cake 9 and wear-resisting cake 10, reduce the magnetic field influence of below.
Further, a heat dissipation port 15 is installed at one side of the heat dissipation device 12, an electric expansion piece 25 is installed at one end of the heat dissipation device 12, a temperature control sensor 20 is installed inside the electric expansion piece 25, an exhaust channel 23 is installed at one end of the electric expansion piece 25, a filter fiber net 24 is installed on the inner wall of the exhaust channel 23, and the filter fiber net 24 is fixedly connected with the inner wall of the exhaust channel 23.
Further, butt joint hole 31 is installed to the bottom of annular inner chamber 28, and butt joint hole 31 and the bottom fixed connection of annular inner chamber 28, one side of butt joint hole 31 is provided with mounting hole 30, fixed ring baffle 36 is installed to one side of mounting hole 30, the inner wall of fixed ring baffle 36 is provided with suppression signal tinfoil intermediate layer 29, and the inner wall fixed connection of suppression signal tinfoil intermediate layer 29 and fixed ring baffle 36, at first place stable position with overall structure utilization firm base 37, utilize the inside access port 17 interconnecting link of spacing frame structure 16 according to the demand earlier, utilize the inside annular inner chamber 28 of duplexer main part 6, install a plurality of wave filters through a plurality of mounting holes 30, utilize the fixed ring baffle 36 that sets up to play spacing reinforcement, utilize a plurality of signal emission module 34, further promote the stability of signal emission.
The working principle is as follows: when in use, firstly, the whole structure is placed at a stable position by using the stable base 37, the connecting circuit of the access port 17 in the limit frame structure 16 is used according to requirements, the annular inner chamber 28 in the duplexer main body 6 is used, a plurality of filters are installed through a plurality of installation holes 30, the limit reinforcement is realized by using the set fixed annular baffle 36, the stability of signal emission is further improved by a plurality of signal emission modules 34, when in operation, the influence of external signals on the inside can be effectively reduced by the mutual matching of the interference eliminator 4 and the internal inhibition signal tinfoil interlayer 29, the stable operation is ensured, the set adjusting shaft 11 and the set fixing block 3 can be well opened while the outside is protected, the movable gland structure 1 is opened, the inside can be conveniently adjusted, the cover body is prevented from being damaged, the flexibility is increased, the protectiveness is improved, and a plurality of the set heat radiating devices 12 are arranged, adopt the electronic expansion bend 25 over-and-under type heat dissipation of drive, reduce the outside interference to inside, utilize accuse temperature inductor 20, in time adjust the internal temperature, ensure the thermal diffusivity, make the internal temperature suitable, thereby reduce electronic component's loss, guarantee practicality, a plurality of adjusting bolt 13 and a plurality of butt joint hole 31, the mounting structure of being convenient for, the guarantee is stable, promote the steadiness, the filter fiber net 24 of setting, dust when can effectual filtration take a breath, avoid inside to receive the erosion, increase the protectiveness, utilize graphite cake 9 and wear-resisting piece 10, reduce the magnetic field influence of below.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. Low-loss high selectivity clutter suppression type basic station duplexer, including last activity gland structure (1), its characterized in that: go up the below of activity gland structure (1) and install duplexer main part (6), the below of duplexer main part (6) is provided with down fixed bearing structure (2), firm base (37) are installed to the below of lower fixed bearing structure (2), one side of fixed bearing structure (2) is provided with fixed block (3) down, go up the top of activity gland structure (1) and install control structure (14), the inside of duplexer main part (6) is provided with annular inner chamber (28).
2. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: dampproofing board (8) is installed to the bottom of lower fixed bearing structure (2), the surface mounting of dampproofing board (8) has graphite piece (9), and the fixed surface of graphite piece (9) and dampproofing board (8) is connected, one side of graphite piece (9) is provided with wear-resisting piece (10), the surface mounting of lower fixed bearing structure (2) has anti-interference ware (4), and anti-interference ware (4) and the fixed surface of lower fixed bearing structure (2) are connected.
3. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: sealing rubber limit (5) are installed to the outer wall of fixed block (3), and sealing rubber limit (5) and the outer wall integrated into one piece setting of fixed block (3), the one end of fixed block (3) is provided with regulating spindle (11), and the one end fixed connection of regulating spindle (11) and fixed block (3).
4. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: display (7) are installed to the upper end of control structure (14), and the upper end fixed connection of display (7) and control structure (14), the surface mounting of control structure (14) has signal emission module (34), the inside of control structure (14) is provided with powersupply (33).
5. The low-loss high-selectivity clutter suppression base station duplexer of claim 4, wherein: connection port (32) are installed to one side of power supply (33), and power supply (33) pass through electric wire circuit (35) and connection port (32) electric connection.
6. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: spacing frame structure (16) is installed to the front end of duplexer main part (6), and spacing frame structure (16) sets up with the front end integrated into one piece of duplexer main part (6), the internally mounted of spacing frame structure (16) has access port (17), one side of access port (17) is provided with dismantles protection steel sheet (18), the inner wall of duplexer main part (6) is installed and is separated temperature asbestos board (26), one side that separates temperature asbestos board (26) is provided with rubber sealing layer (27), and rubber sealing layer (27) and one side fixed connection that separates temperature asbestos board (26).
7. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: go up the surface mounting of activity gland structure (1) has heat abstractor (12), one side of heat abstractor (12) is provided with adjusting bolt (13), bolt post (21) are installed to the one end of adjusting bolt (13), and the one end fixed connection of bolt post (21) and adjusting bolt (13), the outside of bolt post (21) is provided with bolt cover (19), the externally mounted of bolt cover (19) has ferrule (22), and the outside fixed connection of ferrule (22) and bolt cover (19).
8. The low-loss high-selectivity clutter suppression base station duplexer of claim 7, wherein: heat dissipation mouth (15) are installed to one side of heat abstractor (12), the one end of heat abstractor (12) is provided with electronic expansion bend (25), the internally mounted of electronic expansion bend (25) has accuse temperature inductor (20), the one end of electronic expansion bend (25) is provided with air exhaust channel (23), filter fiber net (24) are installed to the inner wall of air exhaust channel (23), and filter fiber net (24) and the inner wall fixed connection of air exhaust channel (23).
9. The low-loss high-selectivity clutter-suppressed base station duplexer of claim 1, wherein: butt joint hole (31) is installed to the bottom of annular inner chamber (28), and the bottom fixed connection of butt joint hole (31) and annular inner chamber (28), one side of butt joint hole (31) is provided with mounting hole (30), fixed ring baffle (36) are installed to one side of mounting hole (30), the inner wall of fixed ring baffle (36) is provided with suppression signal tinfoil intermediate layer (29), and the inner wall fixed connection of suppression signal tinfoil intermediate layer (29) and fixed ring baffle (36).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110061560.8A CN112909463B (en) | 2021-01-18 | 2021-01-18 | Low-loss high-selectivity clutter suppression type base station duplexer |
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| CN202110061560.8A CN112909463B (en) | 2021-01-18 | 2021-01-18 | Low-loss high-selectivity clutter suppression type base station duplexer |
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| CN112909463B CN112909463B (en) | 2023-01-06 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305810Y (en) * | 1997-06-29 | 1999-01-27 | 深圳市天立通通讯设备有限公司 | Casing of duplex rodio fixing staion |
| JP2002368504A (en) * | 2001-06-12 | 2002-12-20 | Toshiba Corp | High frequency filter |
| CN2664294Y (en) * | 2003-11-08 | 2004-12-15 | 摩比天线技术（深圳）有限公司 | A radio-frequency device having multiple-unit duplexer |
| CN201117771Y (en) * | 2007-11-09 | 2008-09-17 | 深圳国人通信有限公司 | Low loss high selectivity clutter suppression -type base station double duplex device |
| CN105162002A (en) * | 2015-10-23 | 2015-12-16 | 程信羲 | Power equipment cabinet |
| CN207665254U (en) * | 2017-11-14 | 2018-07-27 | 广州市好今明企业管理服务有限公司 | A kind of electronic ballast |
| CN108631177A (en) * | 2018-06-26 | 2018-10-09 | 河南亚邦电气有限公司 | A kind of ring main unit used for open air |
| CN208622907U (en) * | 2018-09-12 | 2019-03-19 | 苏州奥尔顿电子科技有限公司 | A kind of compact filter of topology convergence |
| CN209119283U (en) * | 2018-12-20 | 2019-07-16 | 成都三联微讯科技有限公司 | A kind of duplexer that security performance is high |
| CN209880774U (en) * | 2019-06-26 | 2019-12-31 | 深圳市兴东泰电子有限公司 | Millimeter wave duplexer insulation card seat |
| CN210781169U (en) * | 2019-12-06 | 2020-06-16 | 广州卓英电子有限公司 | Industrial wireless network signal strengthening equipment |
| CN212182504U (en) * | 2020-05-22 | 2020-12-18 | 深圳市瑞拓鑫电子有限公司 | High isolation duplexer of broadband |
-
2021
- 2021-01-18 CN CN202110061560.8A patent/CN112909463B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305810Y (en) * | 1997-06-29 | 1999-01-27 | 深圳市天立通通讯设备有限公司 | Casing of duplex rodio fixing staion |
| JP2002368504A (en) * | 2001-06-12 | 2002-12-20 | Toshiba Corp | High frequency filter |
| CN2664294Y (en) * | 2003-11-08 | 2004-12-15 | 摩比天线技术（深圳）有限公司 | A radio-frequency device having multiple-unit duplexer |
| CN201117771Y (en) * | 2007-11-09 | 2008-09-17 | 深圳国人通信有限公司 | Low loss high selectivity clutter suppression -type base station double duplex device |
| CN105162002A (en) * | 2015-10-23 | 2015-12-16 | 程信羲 | Power equipment cabinet |
| CN207665254U (en) * | 2017-11-14 | 2018-07-27 | 广州市好今明企业管理服务有限公司 | A kind of electronic ballast |
| CN108631177A (en) * | 2018-06-26 | 2018-10-09 | 河南亚邦电气有限公司 | A kind of ring main unit used for open air |
| CN208622907U (en) * | 2018-09-12 | 2019-03-19 | 苏州奥尔顿电子科技有限公司 | A kind of compact filter of topology convergence |
| CN209119283U (en) * | 2018-12-20 | 2019-07-16 | 成都三联微讯科技有限公司 | A kind of duplexer that security performance is high |
| CN209880774U (en) * | 2019-06-26 | 2019-12-31 | 深圳市兴东泰电子有限公司 | Millimeter wave duplexer insulation card seat |
| CN210781169U (en) * | 2019-12-06 | 2020-06-16 | 广州卓英电子有限公司 | Industrial wireless network signal strengthening equipment |
| CN212182504U (en) * | 2020-05-22 | 2020-12-18 | 深圳市瑞拓鑫电子有限公司 | High isolation duplexer of broadband |
Non-Patent Citations (1)
| Title |
|---|
| 褚慧: "毫米波无源器件及天线若干问题研究", 《中国优秀博硕士学位论文全文数据库(博士)信息科技辑》 * |
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| CN112909463B (en) | 2023-01-06 |
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