CN107615572B - Cavity body filter and radio frequency remote equipment, signal receiving/transmission device and tower amplifier - Google Patents
Cavity body filter and radio frequency remote equipment, signal receiving/transmission device and tower amplifier Download PDFInfo
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- CN107615572B CN107615572B CN201480084409.4A CN201480084409A CN107615572B CN 107615572 B CN107615572 B CN 107615572B CN 201480084409 A CN201480084409 A CN 201480084409A CN 107615572 B CN107615572 B CN 107615572B
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- cavity
- body filter
- cavity body
- resonant
- connector
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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
Abstract
The embodiment of the invention discloses a kind of cavity body filter and the radio frequency remote equipment with the cavity body filter, signal receiving/transmission device and tower amplifier, the cavity body filter includes cavity and cover board, and the connector on cavity or cover board is set, cover board capping cavity forms several cascade resonant cavities, several cascade resonant cavities are spaced apart by the isolation bar being arranged on cavity or cover board；The resonant column in solid cylinder shape is equipped at least two resonant cavities, the bottom wall of one end of resonant column and cover board or cavity is integrally formed, cavity body filter further includes connector, resonant column is electrically connected by connector with connector, connector includes integrally formed tap and capacitive load disk, tap is connect with connector, and capacitive load disk is detachably connected on the end face of the resonant column other end.Cavity body filter of the present invention has lower manufacturing cost and can effectively avoid the generation of noise.
Description
Technical field
The present invention relates to wave filter technology field, in particular to a kind of cavity body filter and penetrating with the cavity body filter
Frequency remote device, signal receiving/transmission device and tower amplifier.
Background technique
Cavity body filter is widely used in the communications field, especially radio communication as a kind of frequency selection device and leads
Domain.In a base station, filter filters out clutter or interference signal outside communication signal frequency for selecting signal of communication.
Referring to Figure 1, Fig. 1 is a kind of partial structural diagram of cavity body filter in the prior art.Cavity body filter packet
Include cavity 11, cover board 12, resonant rod 13, tuning screw 14, tap 15 and connector 16.Cover board 12 covers cavity 11 and forms resonance
Chamber, resonant rod 13 are in open at one end, the closed cylindrical shape of the other end, and closed end is screwed in the installation of 11 bottom of cavity
On boss.The open end of resonant rod 13 is equipped with the capacitance disk radially stretched out.Tuning screw 14 is threadedly coupled with cover board 12,
Tuning screw 14 gos deep into the opening of resonant rod 13, and by be arranged tuning screw 14 go deep into the length in resonant rod 13 variation come
Reconcile the radio frequency parameter of cavity body filter.Connector 16 is set on the side wall of cavity 11, and tap 15 is substantially L-shaped, one end
It is soldered on resonant rod 13, the other end is electrically connected with connector 16.
In the research and practice process to the prior art, it was found by the inventors of the present invention that in the prior art, resonant rod
Then usually punch forming is being installed to cavity bottom with screw, including is processing and assemble two procedures, be easy to appear assembly
Error.In addition, capacitance disk be it is molding with resonant rod integrated punching, when market demand occur it is larger change or manufacture occur
When large error and tuning screw are not enough to adjust the radio frequency parameter of cavity body filter to normal range (NR), can only more it renew
Resonant rod, or old resonant rod disassembled, cut away part capacitance disk after be installed in cavity again.In addition, tap passes through weldering
The mode connect is connect with resonant rod 13, and electromagnetic wave can reflect during being passed to resonant rod by tap in solder flux, thus
The electromagnetic wave different from original input signal frequency is generated, i.e. generation noise.
Accordingly, it is desirable to provide a kind of novel solution that can be solved the above problems.
Summary of the invention
Manufacturing cost in order to solve cavity body filter in the prior art is higher and electromagnetic wave enters and generates when resonant rod
Noise problem, the embodiment of the present invention provide a kind of cavity body filter and radio frequency remote equipment, signal with the cavity body filter
R-T unit and tower amplifier.
Solution of embodiment of the present invention above-mentioned technical problem, which adopts the technical scheme that, provides a kind of cavity body filter, wraps
Cavity and cover board are included, and the connector being arranged on cavity or cover board, it is cascade humorous that cover board capping cavity forms several
Shake chamber, several cascade resonant cavities are spaced apart by the isolation bar being arranged on cavity or cover board；At least two resonant cavities
The bottom wall of the interior resonant column being equipped in solid cylinder shape, one end of resonant column and cover board or cavity is integrally formed；Cavity filtering
Device further includes connector, and resonant column is electrically connected by connector with connector；Connector includes integrally formed tap and capacitor
Loading disc, tap are connect with connector, and capacitive load disk is detachably connected on the end face of the resonant column other end.
Wherein, resonant cavity includes the tail chamber for receiving the first chamber and transmission of electromagnetic signals of electromagnetic signal, first chamber and the setting of tail chamber
There is the resonant column of solid cylinder shape.
Wherein, the capacitive load disk is fixed on the bottom wall opposite side of the resonant column Yu the cavity with clamp-screw
End face.
Wherein, the outer surface of the clamp-screw has silver coating.
Wherein, the cover board is equipped with the tuning screw protruded into the resonant cavity, and the tuning screw protrudes into described humorous
Intracavitary depth of shaking is adjustable.
Wherein, the tuning screw protrudes into the part in the resonant cavity and is located at except capacitive load plate edge portion.
Wherein, the capacitive load disk and tap with a thickness of 1~2mm.
Wherein, the width of the tap is 2~5mm.
The embodiment of the present invention solves another technical solution that above-mentioned technical problem is taken and is to provide a kind of remote radio
Equipment comprising RF transceiver module, power amplifier module and cavity body filter as described above, RF transceiver module
It is connect with power amplifier module, power amplifier module is connect with cavity body filter.
The embodiment of the present invention solves another technical solution that above-mentioned technical problem is taken and is to provide a kind of signal transmitting and receiving
Device comprising: cavity body filter as described above is connected with receiving antenna, and is filtered to signal is received；Radio frequency
Low-noise amplifier is connect with the signal output end of cavity body filter；Circulator is exported with the signal of radio frequency low-noise amplifier
End connection；Combiner is connect with circulator；Radio-frequency power amplifier, input terminal are connected with the signal output end of combiner,
Its output end is connect with cavity body filter；Transmitting antenna, the output signal of receiving cavity filter simultaneously emit signal.
The embodiment of the present invention solves another technical solution that above-mentioned technical problem is taken and is to provide a kind of tower top amplification
Device comprising low-noise amplifier and bandpass filter, the bandpass filter are the upper cavity body filter.
Compared with prior art, using cavity body filter of the invention, firstly, resonant column is in solid cylindrical, with cavity bottom
Wall is integrally formed, and is eliminated resonant column assembly process, is also avoided rigging error.Then, capacitive load disk and resonant column are removable
Connection is unloaded, when tuning screw is not enough to adjust the radio frequency parameter of cavity body filter to normal range (NR), capacitor can be replaced and added
Load plate, without replacing entire resonant column as before or cutting away part capacitance disk.Finally, tap and capacitive load disk
Be integrally formed, capacitive load disk is detachably connected with resonant column, electromagnetic wave during passing to resonant column by tap just not
The impurity as solder flux can be passed through, avoid generation noise.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing:
Fig. 1 is a kind of sectional structure chart of cavity body filter in the prior art；
Fig. 2 is the sectional structure chart of first embodiment of the invention cavity body filter；
Fig. 3 is the perspective view that cavity body filter shown in Fig. 2 removes cover board；
Fig. 4 is the sectional structure chart of second embodiment of the invention cavity body filter；
Fig. 5 is the structure chart of radio frequency remote equipment of the embodiment of the present invention；
Fig. 6 is the structure chart of signal receiving/transmission device of the present invention；
Fig. 7 is the structure chart of tower amplifier of the present invention.
Specific embodiment
Below in conjunction with the attached drawing of the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Cavity body filter of the embodiment of the present invention comprising cavity and cover board, and the company being arranged on cavity or cover board
Device is connect, cover board capping cavity forms several cascade resonant cavities, several cascade resonant cavities are by being arranged in cavity or lid
Isolation bar on plate is spaced apart；Be equipped with the resonant column in solid cylinder shape at least two resonant cavities, one end of resonant column with
The bottom wall of cover board or cavity is integrally formed；Cavity body filter further includes connector, and resonant column passes through connector and connector electricity
Connection；Connector includes integrally formed tap and capacitive load disk, and tap is connect with connector, and capacitive load disk detachably connects
It connects in the end face of the resonant column other end.Using cavity body filter of the invention, firstly, resonant column is in solid cylindrical, with cavity bottom
Wall is integrally formed, and is eliminated resonant column assembly process, is also avoided rigging error.Then, capacitive load disk and resonant column are removable
Connection is unloaded, when tuning screw is not enough to adjust the radio frequency parameter of cavity body filter to normal range (NR), capacitor can be replaced and added
Load plate, without replacing entire resonant column as before or cutting away part capacitance disk.Finally, tap and capacitive load disk
Be integrally formed, capacitive load disk is detachably connected with resonant column, electromagnetic wave during passing to resonant column by tap just not
The impurity as solder flux can be passed through, avoid generation noise.
Refering to Fig. 2 and Fig. 3, first embodiment of the invention cavity body filter includes cavity 21, cover board 22, connector 24, adjusts
Humorous screw rod 25, resonant column 26, clamp-screw 27 and connector (not indicating).
Cavity 21 is including bottom wall 211 and the side wall 212 set on 211 edge of bottom wall is extended vertically and enclosed from bottom wall 211.Cover board
22 capping cavitys 21 form several cascade resonant cavities (not indicating)；Several cascade resonant cavities by be arranged in cavity 21 or
Isolation bar (not shown) on cover board 22 is spaced apart；The resonant column 26 in solid cylinder shape is equipped at least two resonant cavities.
Specifically, resonant cavity includes the tail chamber for receiving the first chamber and transmission of electromagnetic signals of electromagnetic signal, and first chamber and tail chamber are provided with solid
The resonant column 26 of bar shape.
Resonant column 26, clamp-screw 27 and connector are set in resonant cavity.In the present embodiment, resonant column 26 is in solid post
The bottom wall 211 of body shape, one end and cavity 21 is integrally formed, and resonant column 26 is electrically connected by connector with connector 24.Resonance
Column 26 is arranged in solid cylinder shape, and capacitive load disk 28 can be facilitated to be fixed to resonant column 26.Resonant column 26 uses and cavity 21
Integrally formed structure eliminates processing and the assembly process of resonant column 26, reduces the manufacturing cost of cavity body filter.
Connector 24 is set on cavity 21 or cover board 22.In the present embodiment, connector 24 is set to the side wall of cavity 21
On 212.Concrete meaning is that setting connection resonant cavity and external mounting hole (not indicating), connector 24 pass through peace on side wall 212
Dress hole is fixed on side wall 212, and 24 part of connector is goed deep into be electrically connected with connector in resonant cavity, meanwhile, from cavity 21
Outer surface, that is, cavity body filter outside of side wall 212 can watch the jack (not indicating) of connector 24, corresponding
Plug is inserted into the filter function of realization cavity body filter after jack.
Connector be tap 23 and the integrally formed structural member of capacitive load disk 28, resonant column 26 by connector with connect
Device electrical connection.Capacitive load disk 28 is detachably connected to the end face of the other end of resonant column 26.In the present embodiment, capacitor adds
Load plate 28 is fixed on the end face with 211 opposite side of bottom wall of cavity 21 of resonant column 26 by clamp-screw 27.Specifically,
Through-hole (not indicating) is set on capacitive load disk 28, threaded hole (not indicating) is arranged in the corresponding position of resonant column 26, fastening spiral shell
It is screwed into the threaded hole of resonant column 26 tap 23 being connected to resonant column 26 after the through-hole of 27 insertion capacitive load disk 28 of nail.
Preferably, the outer surface of clamp-screw 27 has silver coating.For control cost and the starting point of guarantee use intensity, spiral shell is fastened
Nail 27 generallys use steel and is made, however the electric conductivity of steel is poor, and the setting of silver coating can reduce the damage of electromagnetic signal propagation
Consumption.
In other examples, capacitive load disk 28 and resonant column 26 can be by being interference fitted or being threadedly coupled
Mode realizes dismountable connection.The capacitive load disk 28 and cover board 22 for being connected to resonant column 26 form capacitor.
In the present invention, one end of tap 23 and capacitive load disk 28 are integrally formed.It is designed since the two is integrally formed,
Thickness just corresponds to the thickness for manufacturing an element in the prior art.Preferably, capacitive load disk 28 and tap 23 with a thickness of 1
~2mm (millimeter), the width of tap 23 are 2~3mm.Further, both capacitive load disk 28 and tap 23 are integrally formed, and two
The small volume of person, it is more easy to install in cavity 21.
The other end of tap 23 is electrically connected with connector 24.The connection of tap 23 and connector 24 can pass through the side of welding
Formula is connected or is attached by other dismountable modes.
Tuning screw 25 is set on cover board 22 and part is goed deep into resonant cavity, and in other words, tuning screw 25 passes through cover board
22 and part be inserted in resonant cavity.Cavity filtering is adjusted by the way that the length variation that tuning screw 25 protrudes into resonant cavity is arranged
The radio frequency parameter of device.
In the present embodiment, because resonant column 26 be it is solid, therefore, if tuning screw 25 be located at capacitive load disk 28 just on
Side, then tuning screw 25 gos deep into limitation of the distance in resonant cavity by capacitive load disk 28, limits to cavity body filter significantly
Parameter regulation range；Preferably, tuning screw 25 gos deep into the part in resonant cavity and is located at except capacitive load plate edge portion, to increase
Parameter regulation range of the big tuning screw 25 to cavity body filter；In other words, on the axis direction perpendicular to tuning screw 25,
Tuning screw 25 is arranged in a staggered manner with tap 23.Preferably, tuning screw 25 and tap 23 are in the axis perpendicular to tuning screw 25
Spacing between on direction is 1.5~2mm.
Refering to Fig. 4, second embodiment of the invention cavity body filter includes cavity 31, cover board 32, connector 34, tuning screw
35, resonant column 36, clamp-screw 37 and connector (not indicating).
Cavity 31 includes bottom wall and extends vertically from bottom wall and enclose the side wall set on bottom wall edge.Cover board 32 covers cavity 31
Form several cascade resonant cavities (not indicating)；Several cascade resonant cavities by be arranged on cavity 31 or cover board 32 every
It is spaced apart from muscle (not shown)；The resonant column 36 in solid cylinder shape is equipped at least two resonant cavities.Specifically, resonant cavity
Including receiving the first chamber of electromagnetic signal and the tail chamber of transmission of electromagnetic signals, first chamber and tail chamber are provided with the resonant column of solid cylinder shape
36。
Resonant column 36, clamp-screw 37 and connector are set in resonant cavity.In the present embodiment, resonant column 36 is in solid post
Body shape, one end and lid are integrally formed, and resonant column 36 is electrically connected by connector with connector 34.Resonant column 36 is in solid post
The setting of body shape, can facilitate capacitive load disk 38 to be fixed to resonant column 36.Resonant column 36 uses and the integrally formed knot of cavity 31
Structure eliminates processing and the assembly process of resonant column 36, reduces the manufacturing cost of cavity body filter.
Connector 34 is set on cavity 31 or cover board 32.In the present embodiment, connector 34 is set to the side wall of cavity 31
On.
Connector be tap 33 and the integrally formed structural member of capacitive load disk 38, resonant column 36 by connector with connect
Device electrical connection.Capacitive load disk 38 is detachably connected to the end face of the other end of resonant column 36.In the present embodiment, capacitor adds
Load plate 38 is fixed on the end face with the bottom wall opposite side of cavity 31 of resonant column 36 by clamp-screw 37.Specifically, electric
Hold corresponding position setting threaded hole (not indicating) that through-hole (not indicating), resonant column 36 are set on loading disc 38, clamp-screw
It is screwed into the threaded hole of resonant column 36 tap 33 being connected to resonant column 36 after the through-hole of 37 insertion capacitive load disks 38.It is excellent
The outer surface of selection of land, clamp-screw 37 has silver coating.
In the present invention, one end of tap 33 and capacitive load disk 38 are integrally formed.It is designed since the two is integrally formed,
Thickness just corresponds to the thickness for manufacturing an element in the prior art.Preferably, capacitive load disk 38 and tap 33 with a thickness of 1
~2mm (millimeter), the width of tap 33 are 2~3mm.Further, both capacitive load disk 38 and tap 33 are integrally formed, and two
The small volume of person, it is more easy to install in cavity 31.
The other end of tap 33 is electrically connected with connector 34.The connection of tap 33 and connector 34 can pass through the side of welding
Formula is connected or is attached by other dismountable modes.
Tuning screw 35 is set on the bottom wall of cavity and part is goed deep into resonant cavity, and in other words, tuning screw 35 passes through
The bottom wall of cavity and part is inserted in resonant cavity.It is adjusted by the way that the length variation that tuning screw 35 protrudes into resonant cavity is arranged
The radio frequency parameter of cavity body filter.
In the present embodiment, because resonant column 36 be it is solid, therefore, if tuning screw 35 be located at capacitive load disk 38 just on
Side, then tuning screw 35 gos deep into limitation of the distance in resonant cavity by capacitive load disk 38, limits to cavity body filter significantly
Parameter regulation range；Preferably, tuning screw 35 gos deep into the part in resonant cavity and is located at except capacitive load plate edge portion, to increase
Parameter regulation range of the big tuning screw 35 to cavity body filter；In other words, on the axis direction perpendicular to tuning screw 35,
Tuning screw 35 is arranged in a staggered manner with tap 33.Preferably, tuning screw 35 and tap 33 are in the axis perpendicular to tuning screw 35
Spacing between on direction is 1.5~2mm.
It is different from the prior art, using cavity body filter of the invention, firstly, resonant column is in solid cylindrical, with cavity bottom
Wall is integrally formed, and is eliminated resonant column assembly process, is also avoided rigging error.Then, capacitive load disk and resonant column are removable
Connection is unloaded, when tuning screw is not enough to adjust the radio frequency parameter of cavity body filter to normal range (NR), capacitor can be replaced and added
Load plate, without replacing entire resonant column as before or cutting away part capacitance disk.Finally, tap and capacitive load disk
Be integrally formed, capacitive load disk is detachably connected with resonant column, electromagnetic wave during passing to resonant column by tap just not
The impurity as solder flux can be passed through, avoid generation noise.
The present invention further provides a kind of radio frequency remote equipments, and incorporated by reference to Fig. 5, radio frequency remote equipment includes RF signal receiving and s ending
Machine module, power amplifier module, cavity body filter and power module.Power module is used for RF transceiver module, power amplifier module
It powers with cavity body filter；RF transceiver module is connect with power amplifier module, and power amplifier module is connect with cavity body filter.Cavity
The detailed description of the structure of filter such as previous embodiment.Radio frequency remote equipment works in descending time slot, comes from radio-frequency receiving-transmitting
The transmitting signal in two channels of letter machine module enters cavity body filter by power amplifier module, and cavity body filter completes transmitting signal
Filtering, is then emitted to antenna opening after power combing.Radio frequency remote equipment works in ascending time slot, receives from antenna opening
Signal enters power amplifier module after filtering by cavity body filter, then RF transceiver module is given in output after power amplifier module amplifies
Corresponding receiving channel.
The present invention further provides a kind of signal receiving/transmission devices, and incorporated by reference to Fig. 6, signal receiving/transmission device includes cavity body filter
1, radio frequency low-noise amplifier 2, radio-frequency power amplifier 3, circulator 4, receiving antenna 5, transmitting antenna 6 and combiner 7.Cavity
The detailed description of the structure of filter 1 such as previous embodiment.Cavity body filter 1 is connect with receiving antenna 5, and to receive signal into
Row filtering；Radio frequency low-noise amplifier 2 is connect with the signal output end of cavity body filter 1；Circulator 4 and radio frequency low-noise amplify
The signal output end of device 2 connects；Combiner 7 is connect with circulator 4；The input terminal of radio-frequency power amplifier 3 and the letter of combiner 7
Number output end is connected, the connection of output end and cavity body filter 1；The output signal of 6 receiving cavity filter 1 of transmitting antenna simultaneously will
Signal transmitting.
The present invention further provides a kind of tower amplifiers, incorporated by reference to Fig. 7, tower amplifier include low-noise amplifier and
Bandpass filter.Wherein, the detailed description of the structure of bandpass filter such as previous embodiment.
In the above-described embodiments, exemplary description only has been carried out to the embodiment of the present invention, but those skilled in the art exist
Read present patent application after can in the case where not departing from the spirit and scope of the embodiment of the present invention to the embodiment of the present invention into
Row various modifications.
Claims (11)
1. a kind of cavity body filter, which is characterized in that including cavity and cover board, and be arranged on the cavity or cover board
Connector, the cover board cover the cavity and form several cascade resonant cavities, several described cascade resonant cavities are by setting
The isolation bar set on the cavity or cover board is spaced apart；
Be equipped at least two resonant cavities the resonant column in solid cylinder shape, one end of the resonant column and the cover board or
The bottom wall of person's cavity is integrally formed；
The cavity body filter further includes connector, and the resonant column is electrically connected by the connector with the connector；
The connector includes integrally formed tap and capacitive load disk, and the tap is connect with the connector, the electricity
Hold the end face that loading disc is detachably connected on the resonant column other end.
2. cavity body filter according to claim 1, which is characterized in that the resonant cavity includes the head for receiving electromagnetic signal
The tail chamber of chamber and transmission of electromagnetic signals, the head chamber and tail chamber are provided with the resonant column of the solid cylinder shape.
3. cavity body filter according to claim 2, which is characterized in that the capacitive load disk is fixed on clamp-screw
The end face of the bottom wall opposite side of the resonant column and the cavity.
4. cavity body filter according to claim 3, which is characterized in that the outer surface of the clamp-screw has silver-plated
Layer.
5. cavity body filter according to claim 2, which is characterized in that the cover board is equipped with and protrudes into the resonant cavity
Tuning screw, it is adjustable that the tuning screw protrudes into the depth in the resonant cavity.
6. cavity body filter according to claim 5, which is characterized in that the tuning screw protrudes into the resonant cavity
Part is located at except capacitive load plate edge portion.
7. cavity body filter according to claim 2, which is characterized in that the capacitive load disk and tap with a thickness of 1
~2mm.
8. cavity body filter according to claim 2, which is characterized in that the width of the tap is 2~5mm.
9. a kind of radio frequency remote equipment, it is characterised in that: the radio frequency remote equipment includes RF transceiver module, power amplifier mould
Cavity body filter described in 1 to 8 any one of block and power, the RF transceiver module are connect with the power amplifier module,
The power amplifier module is connect with the cavity body filter.
10. a kind of signal receiving/transmission device, it is characterised in that: the signal receiving/transmission device includes:
Cavity body filter as described in claim 1 to 8 any one, is connected with receiving antenna, and to receive signal into
Row filtering；
Radio frequency low-noise amplifier is connect with the signal output end of the cavity body filter；
Circulator is connect with the signal output end of the radio frequency low-noise amplifier；
Combiner is connect with the circulator；
Radio-frequency power amplifier, input terminal are connected with the signal output end of the combiner, output end and the cavity
Filter connection；
Transmitting antenna receives the output signal of the cavity body filter and emits signal.
11. a kind of tower amplifier, it is characterised in that: including low-noise amplifier and bandpass filter, the bandpass filter
For cavity body filter described in claim 1 to 8 any one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/095532 WO2016106550A1 (en) | 2014-12-30 | 2014-12-30 | Cavity filter, and remote radio device, signal transceiving apparatus, and tower mounted amplifier having cavity filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107615572A CN107615572A (en) | 2018-01-19 |
| CN107615572B true CN107615572B (en) | 2019-11-26 |
Family
ID=56283834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480084409.4A Active CN107615572B (en) | 2014-12-30 | 2014-12-30 | Cavity body filter and radio frequency remote equipment, signal receiving/transmission device and tower amplifier |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107615572B (en) |
| WO (1) | WO2016106550A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109219299B (en) * | 2018-10-31 | 2023-08-18 | 重庆山淞信息技术有限公司 | Filter with multiple filtering functions |
| CN115663434B (en) * | 2022-12-29 | 2023-03-21 | 成都联帮微波通信工程有限公司 | Filter mechanism |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2045560C3 (en) * | 1970-09-15 | 1978-03-09 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Microwave filters made from cuboid cavity resonators |
| JPS5535560A (en) * | 1978-09-04 | 1980-03-12 | Matsushita Electric Ind Co Ltd | Coaxial type filter |
| JPS57136802A (en) * | 1981-02-17 | 1982-08-24 | Matsushita Electric Ind Co Ltd | Coaxial filter |
| US4491806A (en) * | 1982-10-06 | 1985-01-01 | Motorola, Inc. | Resonant cavity with integrated microphonic suppression means |
| SE513349C2 (en) * | 1998-08-12 | 2000-08-28 | Allgon Ab | cavity resonator |
| CN102881977B (en) * | 2011-07-15 | 2015-02-25 | 凯镭思通讯设备（上海）有限公司 | Single-cavity filter with load coupling plate |
| CN103855454B (en) * | 2012-11-30 | 2018-04-17 | 深圳光启创新技术有限公司 | A kind of resonator, filtering device and electromagnetic wave device |
| CN203119066U (en) * | 2013-01-21 | 2013-08-07 | 合肥科尚电子科技有限公司 | A filter used in a C-waveband radar system transceiver assembly |
| CN203386875U (en) * | 2013-06-04 | 2014-01-08 | 深圳市大富科技股份有限公司 | A cavity filter |
-
2014
- 2014-12-30 WO PCT/CN2014/095532 patent/WO2016106550A1/en active Application Filing
- 2014-12-30 CN CN201480084409.4A patent/CN107615572B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107615572A (en) | 2018-01-19 |
| WO2016106550A1 (en) | 2016-07-07 |
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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 Address before: 518108, Guangdong, Shenzhen province Baoan District manhole Street oyster road manhole Industrial Company Third Industrial Zone A1, A2, A3 101 and 2 layers, A4 Patentee before: SHENZHEN TATFOOK TECHNOLOGY Co.,Ltd. |
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