CN106602191A - High-performance band-stop filter and the communication cavity component thereof - Google Patents
High-performance band-stop filter and the communication cavity component thereof Download PDFInfo
- Publication number
- CN106602191A CN106602191A CN201611153124.9A CN201611153124A CN106602191A CN 106602191 A CN106602191 A CN 106602191A CN 201611153124 A CN201611153124 A CN 201611153124A CN 106602191 A CN106602191 A CN 106602191A
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- China
- Prior art keywords
- cavity
- transmission line
- resonant column
- performance band
- band elimination
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Classifications
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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
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a high-performance band-stop filter comprising a cavity body and a cover plate covering the cavity. The cavity body is provided with a longitudinal-length type empty cavity; the two ends in the longitudinal-length direction of the empty cavity are formed with connection ports respectively. Inside the empty cavity are arranged a transmission line allowing the two connection ports to be electrically connected and a transmission line cavity holding the transmission line. One side of the transmission line cavity is provided with a plurality of resonant cavities distributed in sequence; each resonant cavity is provided therein with a resonant column. Each resonant column is provided with a holding hole to hold a tuning screw rod; the transmission line is provided with impedance transforming structures corresponding to the resonant columns and in capacitive coupling with the resonant columns; the cover plate is provided with tuning screw rods corresponding to each resonant column and arranged in a suspension manner. The running screw rods are in non-touch connection with the resonant columns. The high-performance band-stop filter can achieve good effects of relatively narrow bandwidth, wide passband and band-stop bandwidth, high band-stop suppression, and small insertion loss. In addition, the invention further provides a communication cavity component with the high-performance band-stop filter.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of high-performance band elimination filter and its communication cavity
Device.
Background technology
With the development of LTE communication technology, System Expansion becomes the important component part of networking.System Expansion is increased
Utilization to the resource of frequency range, but at the same time, frequency range is also more and more crowded.In order to ensure during System Expansion, to be
There are enough isolations between system, just have higher requirement to performance of filter.
Existing wave filter can be realized declining the higher effect of very fast, Out-of-band rejection degree with outer.Be applied to passband and
In the case of stopband interval is larger, stopband suppresses less demanding, good isolation effect can be realized.But, for passband and
Stopband is closely spaced, passband and bandwidth of rejection is very wide, the situation that belt resistance inhibitor system has high demands, and existing wave filter cannot be realized good
Good isolation effect.
Therefore, a kind of wave filter that can solve above-mentioned technical problem or filtering path etc. are needed badly in the industry.
The content of the invention
The purpose of the present invention aim to provide one kind can, passband closely spaced in passband and stopband and bandwidth of rejection it is very wide, resistance
In the case of band degree of suppression has high demands, good isolation effect is realized, it is ensured that have the high performance tape of enough isolations between system
Resistance wave filter and its communication cavity device.
To achieve these goals, the present invention provides technical scheme below：
A kind of first aspect, there is provided high-performance band elimination filter.The high-performance band elimination filter includes cavity and and chamber
The cover plate of body phase lid dress；The cavity is provided with lengthwise open cavity, and in cavity longitudinally two ends connectivity port is respectively formed with, empty
Intracavity is provided with the transmission line for realizing the electric connection of two connectivity ports and the transmission line chamber for housing transmission line；
The side of the transmission line chamber is provided with multiple resonator cavitys arranged successively, and each described resonance intracavity is provided with resonance
Post, each resonant column is equipped with the accommodating hole of accommodating tuning screw, on the transmission line correspondence resonant column be provided with
The capacitively coupled impedance mapped structure of the resonant column；
Described each resonant column suspension of correspondence on the cover plate has tuning screw, and the tuning screw is non-with the resonant column
Contact connection.
Specifically, the transmission line is provided with multiple impedance mapped structures, and the plurality of impedance mapped structure is more with described
Individual resonant column is corresponded and arranged.
Preferably, the resonant column, impedance conversion detail equidistantly set gradually along the transmission line of wire.
Specifically, the impedance mapped structure include with the transmission line be electrically connected with high impedance line and with the high resistant
The coupling disc of anti-line connection, the end face of the coupling disc is arranged in the face of the resonant column.
Preferably, the coupling side surface is circular or rectangle.
Specifically, the plurality of resonator cavity is connected shape by multiple metal partion (metp)s be arrangeding in parallel with well floor and side plate
Into.
Preferably, the resonator cavity is the equal square chamber of the bottom surface length of side.
Specifically, the resonant column and the cover plate noncontact arranges to form electric capacity between the two.
Specifically, the resonant column is electrically connected with the cavity bottom.
Preferably, the transmission line is fixed on the transmission line intracavity by media supports.
A kind of second aspect, there is provided communication cavity device.The communication cavity device is included described in above-mentioned first aspect
High-performance band elimination filter.
Compared to existing technology, the solution of the present invention has advantages below：
High-performance band elimination filter in the present invention, multiple is arranged successively by being provided with the side of the transmission line chamber
Resonator cavity, each described resonance intracavity is provided with resonant column, and each resonant column is equipped with the accommodating hole of accommodating tuning screw, and
The correspondence resonant column is provided with and the capacitively coupled impedance mapped structure of the resonant column on the transmission line so that band resistance filter
The performance of ripple device is significantly lifted, and can be effectively realized that passband and stopband are spaced very narrow, passband and bandwidth of rejection is very wide, resistance
With the superperformance that degree of suppression is high, insertion loss is little.Further, since the simple structure of the high-performance band elimination filter, size are suitable
In, concordance it is good, be conducive to batch production, improve production efficiency.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is a kind of structural representation of a kind of embodiment of high-performance band elimination filter in the present invention；
Fig. 2 is the top view of the cavity of Fig. 1, shows the position relationship of impedance mapped structure and resonant column.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in figure 1, the invention provides a kind of high-performance band elimination filter 100, the energy of high-performance band elimination filter 100
Realize that passband and stopband are spaced very narrow, passband and bandwidth of rejection is very wide, belt resistance inhibitor system is high and that pass band insertion loss is little is good
Performance.Further, since the simple structure of the high-performance band elimination filter 100, it is conducive to batch production.
Fig. 2 is separately combined, the high-performance band elimination filter 100 includes cavity 2 and the cover plate 1 of dress is mutually covered with cavity 2；It is described
Cavity 2 is provided with lengthwise open cavity 21, and is respectively formed with connectivity port 51,52, the cavity in the longitudinally two ends of cavity 21
The transmission line 3 for realizing the electric connection of two connectivity ports 51,52 and the transmission line for housing transmission line 3 are provided with 21
Chamber 31.The cover plate 1 is fixedly connected by screw 9 with the cavity 2, to form the confined space of signal transmission.
The side of the transmission line chamber 31 is provided with multiple resonator cavitys 7 arranged successively, and the plurality of resonator cavity 7 is by multiple flat
The metal partion (metp) 10 that row is arranged is connected restriction with the base plate of cavity 2 and side plate and goes out.Preferably, the resonator cavity 7 is the bottom surface length of side
Equal square chamber, in order to arrange chamber, improves space availability ratio, optimizes space layout.Additionally, being provided with each described resonator cavity 7
Resonant column 71, the resonant column 71 is the appearance that any column construction and each described resonant column 71 are equipped with accommodating tuning screw 6
Put hole.
Accordingly, the cover plate 1 is provided with the installing hole that accommodating tuning screw 6 is passed through, and the installing hole correspondence is described every
Individual resonant column 71 is opened up, and the tuning screw 6 is suspended on each resonant column 71 through the installing hole correspondence on the cover plate 1,
And can stretch in the accommodating hole of the resonant column 71, but tuning screw 6 remains that noncontact is connected with resonant column 71.
By adjusting the tuning screw 6, the resonant frequency of the resonator that realization is constituted to resonator cavity 7 and resonant column 71
Regulation, so as to by the resonant frequency of the resonator control in stopband frequency range.Additionally, the resonant column 71 and the cover plate 1
Noncontact is arranged to form electric capacity between the two, and the electric capacity is the equivalent capacity of the resonator；It is electrical with the bottom of the cavity 2
The resonant column 71 of connection forms inductance, and the inductance is the equivalent inductance of the resonator.
The correspondence resonant column 71 is provided with and the capacitively coupled impedance mapped structure of the resonant column 71 on the transmission line 3
4.Half between the impedance mapped structure 4, the two neighboring described impedance mapped structure 4 of the both sides of impedance mapped structure 4
The transmission line 3 of length and the capacitively coupled resonant column 71 of the impedance mapped structure 4 and it is located with the resonant column 71
Resonator cavity 7 constitutes the elementary cell of the high-performance band elimination filter 100.Institute in the high-performance band elimination filter 100
State impedance mapped structure 4 and contribute to high performance filter 100 and realize good electrical characteristic, while simple structure, it is easy to produce
And layout.
Specifically, the transmission line 3 is provided with multiple impedance mapped structures 4, the plurality of impedance mapped structure 4 with it is described
Multiple resonant columns 71 are corresponded and arranged.Meanwhile, the transmission line length along path between the two neighboring impedance mapped structure 4
Degree need not be constrained to 1/4 or one of 1/8 traditional wavelength, and length can be different.Additionally, the resonant column 71 and the transmission
The distance between line 3, the impedance mapped structure 4 physical dimension can be different.
Continuing with Fig. 2 is combined, the impedance mapped structure 4 includes the high impedance line 41 being electrically connected with the transmission line 3
And the coupling disc 42 being connected with the high impedance line 41.Side wall of the end face of the coupling disc 42 in the face of the plurality of resonant column 71
Correspond and arrange, and be not in contact with each other with the resonant column 71 and form coupled capacitor.The side of the resonant column 71 can be
Plane or curved surface, such as square column face or the face of cylinder, the end face of the coupling disc 42 can be adjusted according to the side of the resonant column 71
It is whole.
Preferably, the side of the resonant column 71 is plane, and accordingly, the end face of the coupling disc 42 is circular or rectangle,
Contribute to adjusting the structure shape of the end face of coupling disc 42 according to the side size of the structure size inside cavity 2 and/or resonant column 71
Shape and size.High-performance band elimination filter 100 in the present embodiment, by the shapes and sizes for flexibly adjusting coupling disc 42,
On the one hand be conducive to lifting the electric property of high-performance band elimination filter 100, be on the one hand conducive to high-performance band elimination filter 100
Topology layout.
Additionally, the transmission line 3 be built in transmission line chamber 31, its two ends respectively with two connectivity ports 51,52 in
Conductor (sign) is direct-connected, to realize the transmission of the signal between two connectivity ports 51,52.Wherein, the transmission line 3 is transversal
The shape in face can have any shape, and the shape of cross section and size of different axial location can be with different, can be according to reality
Shape at border needs and connectivity port 51,52 is adjusted.
Preferably, the high-performance band elimination filter 100 also includes media supports 8.The transmission line 3 is by medium
Support member 8 is fixed in the transmission line chamber 31, it is ensured that the position of transmission line 3 will not be moved, it is to avoid affect thereon
The size of the electric capacity formed between the resonant column 71 corresponding with the impedance mapped structure 4 of impedance mapped structure 4, carries out impact institute
State the electric property of high-performance band elimination filter 100.
On the premise of the electric property of high-performance band elimination filter 100 is ensured, in order to realize the high usage to space
And the convenience in row chamber, it is preferable that the resonator cavity 7 is as broad as long side chamber, it will be apparent that, when the resonator cavity 7 is side
Chamber, its utilization rate to space is highest.Meanwhile, the transmission line section between the two neighboring transforming impedance structure 4 is in straight
Wire is laid, and the transmission line line segment length is equal to the metal partion (metp) 10 between the length of side of the resonator cavity 7 and the resonator cavity 7
Thickness sum.That is, the resonant column 71, the impedance mapped structure 4 are equidistant along the linearly transmission line 3
Set gradually.
Heretofore described high-performance band elimination filter 100, by the impedance mapped structure 4 for introducing simple structure, makes
The performance for obtaining its corresponding band elimination filter is greatly enhanced.The high-performance band elimination filter 100 can realize passband
0-1880MHz insertion loss≤0.5dB, the specification requirements to the suppression >=60dB of stopband 1920-2170MHz frequency ranges.
It should be noted that some embodiments of heretofore described high-performance band elimination filter 100 are not constituted to this
Invention uses the restriction of approach.The high-performance band elimination filter 100 is except realizing the stopband low side tool shown in embodiment
Except in the case of having passband, it is also possible to realize that stopband is high-end and have a case that passband, and the high and low two ends of stopband are respectively provided with passband
Situation.
Additionally, a kind of present invention also offers communication cavity device.The communication cavity device includes above-mentioned high performance tape
Resistance wave filter 100.
The above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (11)
1. a kind of high-performance band elimination filter, including cavity and the cover plate of dress is mutually covered with cavity；Lengthwise open is provided with the cavity
Cavity, in cavity longitudinally two ends connectivity port is respectively formed with, and the electricity for realizing two connectivity ports is provided with cavity
Property connection transmission line and the transmission line chamber for housing transmission line, it is characterised in that：
The side of the transmission line chamber is provided with multiple resonator cavitys arranged successively, and each described resonance intracavity is provided with resonant column, often
The individual resonant column is equipped with the accommodating hole of accommodating tuning screw, and the correspondence resonant column is provided with humorous with described on the transmission line
The capacitively coupled impedance mapped structure of the post that shakes；
Described each resonant column suspension of correspondence on the cover plate has tuning screw, the tuning screw and the resonant column noncontact
Connection.
2. high-performance band elimination filter according to claim 1, it is characterised in that the transmission line is provided with multiple impedances
Mapped structure, the plurality of impedance mapped structure is corresponded with the plurality of resonant column and arranged.
3. high-performance band elimination filter according to claim 1, it is characterised in that the resonant column, impedance conversion
Detail equidistantly sets gradually along the transmission line of wire.
4. the high-performance band elimination filter according to any one of claims 1 to 3, it is characterised in that the impedance conversion knot
The coupling disc that structure includes the high impedance line being electrically connected with the transmission line and is connected with the high impedance line, the coupling disc
End face is arranged in the face of the resonant column.
5. high-performance band elimination filter according to claim 4, it is characterised in that the coupling side surface is circular or square
Shape.
6. high-performance band elimination filter according to claim 1, it is characterised in that the plurality of resonator cavity is by multiple parallel
The metal partion (metp) of setting is connected to be formed with well floor and side plate.
7. high-performance band elimination filter according to claim 6, it is characterised in that the resonator cavity is that the bottom surface length of side is equal
Square chamber.
8. high-performance band elimination filter according to claim 1, it is characterised in that the resonant column is non-with the cover plate to be connect
Touch and arrange to form electric capacity between the two.
9. high-performance band elimination filter according to claim 1, it is characterised in that the resonant column and the cavity bottom
It is electrically connected with.
10. high-performance band elimination filter according to claim 1, it is characterised in that the transmission line is by dielectric support
Part is fixed on the transmission line intracavity.
11. a kind of communication cavity devices, it is characterised in that hinder including the high performance tape described in any one in claim 1-10
Wave filter.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153124.9A CN106602191A (en) | 2016-12-14 | 2016-12-14 | High-performance band-stop filter and the communication cavity component thereof |
| PCT/CN2017/081171 WO2018107633A1 (en) | 2016-12-14 | 2017-04-20 | High-performance band-stop filter and communications cavity device thereof |
| BR112019011886A BR112019011886A2 (en) | 2016-12-14 | 2017-04-20 | high performance stop band filter and its communication cavity device |
| AU2017375168A AU2017375168B2 (en) | 2016-12-14 | 2017-04-20 | High-performance band-stop filter and communications cavity device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153124.9A CN106602191A (en) | 2016-12-14 | 2016-12-14 | High-performance band-stop filter and the communication cavity component thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602191A true CN106602191A (en) | 2017-04-26 |
Family
ID=58802390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611153124.9A Pending CN106602191A (en) | 2016-12-14 | 2016-12-14 | High-performance band-stop filter and the communication cavity component thereof |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN106602191A (en) |
| AU (1) | AU2017375168B2 (en) |
| BR (1) | BR112019011886A2 (en) |
| WO (1) | WO2018107633A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879050A (en) * | 2018-07-23 | 2018-11-23 | 京信通信系统（中国）有限公司 | Bandstop filter and communication cavity device |
| CN109713413A (en) * | 2019-02-25 | 2019-05-03 | 江苏贝孚德通讯科技股份有限公司 | A kind of coupled structure of band-stop response communication headend equipment component |
| CN109786907A (en) * | 2019-02-18 | 2019-05-21 | 摩比科技（深圳）有限公司 | The capacitive coupling structure and cavity body filter of cavity body filter |
| CN112635944A (en) * | 2020-12-30 | 2021-04-09 | 京信射频技术(广州)有限公司 | Filter and metal cavity filter |
| CN113131148A (en) * | 2019-12-31 | 2021-07-16 | 深圳市大富科技股份有限公司 | Communication device and filter thereof |
| WO2022001570A1 (en) * | 2020-07-02 | 2022-01-06 | 罗森伯格技术有限公司 | Band-stop filter and radio frequency device |
| CN114284663A (en) * | 2022-02-10 | 2022-04-05 | 深圳国人科技股份有限公司 | 5G band elimination cavity filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101090725B1 (en) * | 2011-06-13 | 2011-12-08 | 주식회사 이너트론 | Dual band rejection filter |
| KR101115323B1 (en) * | 2011-06-13 | 2012-03-06 | 주식회사 이너트론 | Band rejection filter and band rejection filter circuit by the same |
| CN203300776U (en) * | 2013-05-06 | 2013-11-20 | 京信通信技术(广州)有限公司 | Communication cavity device and low-pass filtering path |
| KR101386941B1 (en) * | 2012-10-10 | 2014-04-18 | 주식회사 이너트론 | Band rejection filter of assembly type |
| CN206282952U (en) * | 2016-12-14 | 2017-06-27 | 京信通信技术(广州)有限公司 | High-performance bandstop filter and its communication cavity device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011666Y (en) * | 2006-12-28 | 2008-01-23 | 武汉凡谷电子技术股份有限公司 | Band stop filter |
| KR100992089B1 (en) * | 2009-03-16 | 2010-11-05 | 주식회사 케이엠더블유 | Band rejection filter |
| CN102354778B (en) * | 2011-08-24 | 2014-03-26 | 京信通信系统（中国）有限公司 | Elliptic function low-path filtering path and communication cavity device adopting same |
| CN103117436A (en) * | 2011-11-17 | 2013-05-22 | 成都赛纳赛德科技有限公司 | Miniaturization band elimination filter |
| CN102683779B (en) * | 2012-05-18 | 2014-09-10 | 京信通信系统（中国）有限公司 | Communication cavity device and elliptic function type high-pass filtering channel thereof |
| CN104241751B (en) * | 2014-09-10 | 2017-07-25 | 江苏贝孚德通讯科技股份有限公司 | A kind of dielectric filter port coupled structure |
-
2016
- 2016-12-14 CN CN201611153124.9A patent/CN106602191A/en active Pending
-
2017
- 2017-04-20 AU AU2017375168A patent/AU2017375168B2/en active Active
- 2017-04-20 WO PCT/CN2017/081171 patent/WO2018107633A1/en active Application Filing
- 2017-04-20 BR BR112019011886A patent/BR112019011886A2/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101090725B1 (en) * | 2011-06-13 | 2011-12-08 | 주식회사 이너트론 | Dual band rejection filter |
| KR101115323B1 (en) * | 2011-06-13 | 2012-03-06 | 주식회사 이너트론 | Band rejection filter and band rejection filter circuit by the same |
| KR101386941B1 (en) * | 2012-10-10 | 2014-04-18 | 주식회사 이너트론 | Band rejection filter of assembly type |
| CN203300776U (en) * | 2013-05-06 | 2013-11-20 | 京信通信技术(广州)有限公司 | Communication cavity device and low-pass filtering path |
| CN206282952U (en) * | 2016-12-14 | 2017-06-27 | 京信通信技术(广州)有限公司 | High-performance bandstop filter and its communication cavity device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879050A (en) * | 2018-07-23 | 2018-11-23 | 京信通信系统（中国）有限公司 | Bandstop filter and communication cavity device |
| CN108879050B (en) * | 2018-07-23 | 2024-01-30 | 京信通信技术(广州)有限公司 | Band-stop filter and communication cavity device |
| CN109786907A (en) * | 2019-02-18 | 2019-05-21 | 摩比科技（深圳）有限公司 | The capacitive coupling structure and cavity body filter of cavity body filter |
| CN109713413A (en) * | 2019-02-25 | 2019-05-03 | 江苏贝孚德通讯科技股份有限公司 | A kind of coupled structure of band-stop response communication headend equipment component |
| CN109713413B (en) * | 2019-02-25 | 2024-05-10 | 江苏贝孚德通讯科技股份有限公司 | Coupling structure of band-stop characteristic communication front-end equipment component |
| CN113131148A (en) * | 2019-12-31 | 2021-07-16 | 深圳市大富科技股份有限公司 | Communication device and filter thereof |
| WO2022001570A1 (en) * | 2020-07-02 | 2022-01-06 | 罗森伯格技术有限公司 | Band-stop filter and radio frequency device |
| CN112635944A (en) * | 2020-12-30 | 2021-04-09 | 京信射频技术(广州)有限公司 | Filter and metal cavity filter |
| CN114284663A (en) * | 2022-02-10 | 2022-04-05 | 深圳国人科技股份有限公司 | 5G band elimination cavity filter |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2017375168A1 (en) | 2019-07-04 |
| WO2018107633A1 (en) | 2018-06-21 |
| BR112019011886A2 (en) | 2019-10-22 |
| AU2017375168B2 (en) | 2020-09-10 |
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Effective date of registration: 20200119 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Address before: 510663 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before: Jingxin Communication System (China) Co., Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170426 |