CN107800008B - Coaxial connector, filter and radio frequency device - Google Patents
Coaxial connector, filter and radio frequency device Download PDFInfo
- Publication number
- CN107800008B CN107800008B CN201711014227.1A CN201711014227A CN107800008B CN 107800008 B CN107800008 B CN 107800008B CN 201711014227 A CN201711014227 A CN 201711014227A CN 107800008 B CN107800008 B CN 107800008B
- Authority
- CN
- China
- Prior art keywords
- coaxial connector
- cavity
- filter
- external equipment
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/52—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted in or to a panel or structure
- H01R24/525—Outlets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/04—Fixed joints
- H01P1/045—Coaxial joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
- H01R13/74—Means for mounting coupling parts in openings of a panel
Abstract
The invention provides a coaxial connector, a filter and a radio frequency device, wherein the coaxial connector comprises a shell, a flange arranged at one end of the shell and an inner conductor which is embedded in the shell and insulated from the shell, the flange is provided with a fastening ring at one end far away from the shell, and the fastening ring is circumferentially arranged around the inner conductor extending out of the end face of the flange and is used for being inserted into a mounting hole of an external equipment cavity to be in interference fit with the external equipment cavity and be in grounded connection with the external equipment cavity when the coaxial connector is mounted in the external equipment cavity. In this scheme, can realize interference fit's tighrening ring with the mounting hole of external equipment cavity through the setting, realize coaxial connector and external equipment cavity's stable connection, can keep good linear contact between tighrening ring and the external equipment cavity to can reduce the influence of external environment to its conventional index, improve the passive intermodulation's of wave filter stability.
Description
Technical Field
The invention relates to the field of radio frequency communication devices, in particular to a coaxial connector, a filter using the same and a radio frequency device.
Background
In modern mobile communication systems, metal cavity filters have long been the first choice for base stations and indoor signal distribution systems of mobile communication systems due to their advantages of good electromagnetic shielding, high passband selectivity, high power capacity, and easy mass production. With the development of mobile communication technology, spectrum resources are increasingly tense, the transmitting power of a base station is higher and higher, a metal cavity filter can generate Passive Intermodulation (PIM) under a high-power condition, and the normal work of a receiver can be interfered and the performance of a communication network is reduced due to the overhigh level of the Passive Intermodulation power. The coaxial connector is generally mounted on the sidewall of the cavity filter, and is used as a component of signal input and output of the cavity filter, so the intermodulation level and stability of the coaxial connector are especially important.
Conventional coaxial connectors include inner conductors, insulators, flanges, and the like. The inner conductor is mainly used for transmitting electric signals; the insulator plays a role of supporting the inner conductor; the flange is provided with screw holes, and the connector can be locked on the cavity filter by screws. The traditional connector is mainly grounded by a flange and a cavity, a metal ring with the height of 0.2-0.5 mm is usually arranged on the flange for improving the grounding effect, and the lever effect is easily generated by the structure due to different mounting sequences of the connector screws, so that the linear contact of the metal ring and the cavity is difficult to ensure. The screw looseness appears easily under the product receives vibrations, temperature variation condition, and the locking force worsens the condition, leads to connector ground connection bad, influences passive intermodulation level and long-term stability.
Another improvement scheme is to use the threaded connector, and this kind of connector has interior (outer) screw thread at shell processing, processes out outer (interior) screw thread simultaneously on the cavity, and both are screwed together through the screw thread, and this kind of mode intermodulation stability is better than traditional screw mounting means, and the shortcoming needs to scribble special glue at the screw thread department during the installation and fixes for it is difficult to dismantle after the installation, and inconvenient intermodulation maintenance and the connector can not reuse, causes the material waste easily.
Disclosure of Invention
A first object of the present invention is to provide a coaxial connector having a simple structure and high intermodulation stability;
a second object of the present invention is to provide a filter to which the coaxial connector is applied;
a third object of the present invention is to provide a radio frequency device comprising the above filter.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a coaxial connector, includes the shell, locates the flange of shell one end and inlay and locate the shell and with the insulated inner conductor of shell, the flange is keeping away from the one end of shell is equipped with the tighrening ring, the tighrening ring is around stretching out the flange terminal surface inner conductor circumference sets up, and is used for coaxial connector inserts when installing in the external equipment cavity insert in the mounting hole of external equipment cavity with external equipment cavity interference fit and ground connection.
Preferably, the fastening ring is integrally formed with the flange.
Preferably, the end of the fastening ring remote from the flange is provided with a guide.
Preferably, the guide forms a ground ring for abutment with the external equipment cavity.
Preferably, the axial length of the fastening ring is 4-10 mm; the external diameter of tighrening ring is greater than the internal diameter of mounting hole, just the external diameter with the difference of internal diameter is 0.02 ~ 0.05 mm.
Preferably, a gap is formed between the fastening ring and the inner conductor, and the gap is filled with an insulating medium.
Preferably, the flange is provided with a waterproof groove for filling sealing materials along the outer edge ring of the fastening ring.
The utility model provides a filter, including the filter cavity and with the coaxial connector that the filter cavity is connected, the mounting hole has been seted up to the filter cavity, coaxial connector is foretell coaxial connector, the tighrening ring insert in the mounting hole and with filter cavity interference fit.
Preferably, a resonant column is arranged in the filter cavity, a coupling hole is formed in the middle of the resonant column, and the inner conductor extends into the coupling hole to form a gap with the coupling hole; and a supporting medium for fixedly supporting the inner conductor is arranged in the filter cavity.
A radio frequency device comprising the filter described above.
Compared with the prior art, the scheme of the invention has the following advantages:
1. in the coaxial connector, the fastening ring which can be in interference fit with the mounting hole of the external equipment cavity is arranged, so that the coaxial connector can be stably connected with the external equipment cavity, and the fastening ring can be in good linear contact with the external equipment cavity, so that the influence of the external environment on the conventional index can be reduced, and the passive intermodulation stability of the filter can be improved.
2. Through adopting the tighrening ring that can realize interference fit with the mounting hole of external equipment cavity, when it inserted the mounting hole in the external equipment cavity, the concentricity of assurance coaxial connector and mounting hole that can be fine and the terminal interval with the coupling hole of inner conductor to avoid the condition of short circuit in order to further guarantee the uniformity of port bandwidth.
3. The tail end of tighrening ring is equipped with the guide part, the ground ring is located on the terminal surface of guide part, consequently, receives the influence of cavity dust less, can guarantee coaxial connector ground connection well simultaneously, and then guarantees the passive intermodulation level of crossing the end.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of a coaxial connector in an embodiment of the present invention;
FIG. 2 is a perspective view of a filter in an embodiment of the invention;
FIG. 3 is a cross-sectional view of a filter in an embodiment of the invention;
fig. 4 is an enlarged view of the region a shown in fig. 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1, the coaxial connector 2 of the present invention can be mounted on a filter housing 1 as a component of the input and output of the filter signal. It should be understood that the coaxial connector of the present invention can also be used in other external equipment cavities to form a radio frequency device for processing radio frequency signals together with external equipment.
In the embodiment of the present invention, the outer diameter of the fastening ring 24 is larger than the aperture of the mounting hole of the external device cavity, so that when the fastening ring 24 is inserted into the mounting hole of the external device cavity, the fastening ring 24 is flatly pressed into the mounting hole 11 by a tool, so that the fastening ring 24 and the mounting hole 11 are in an interference state (i.e. the coaxial connector 2 is in interference fit with the mounting hole of the external device cavity); on one hand, the coaxial connector 2 is in interference fit with the mounting hole of the external equipment cavity to further fix the coaxial connector 2, so that the coaxial connector 2 can be kept stable and not easy to loosen with external cavity equipment under the action of external force or when a screw for fixing the coaxial connector 2 and the external equipment cavity is loosened, the influence of external environments such as vibration on conventional indexes of the external environment is reduced, and the passive intermodulation stability of the filter is improved; on the other hand, the coaxial connector 2 and the mounting hole of the external device cavity are in interference fit, so that the concentricity of the coaxial connector 2 and the mounting hole of the external device cavity and the distance between the tail end of the inner conductor 23 and the coupling hole 121 can be ensured, and the condition that the inner conductor 23 is in contact with the coupling hole 121 in the filter cavity 1 to cause short circuit is avoided, so that the consistency of the bandwidth of the port is further ensured.
Preferably, the fastening ring 24 is integrally formed with the flange 22, and the axial length of the fastening ring 24 ranges from 4 to 10 mm. The fastening ring 24 and the flange are integrally formed, so that the connection between the fastening ring 24 and the flange 22 is firmer, and the overall stability of the coaxial connector 2 is improved when the coaxial connector is installed in the filter cavity 1. Through multiple tests of the applicant, the fastening ring 24 with the axial length of 4-10 mm is adopted, so that the position precision of the coaxial connector 2 and the external equipment cavity after installation is more conveniently controlled on the premise that the fastening ring 24 and the installation hole are assembled more conveniently in an interference fit mode, and the coaxiality between the fastening ring 24 and the installation hole is particularly improved; the axial length is further preferably 5.5 mm. In view of the effect of the external device cavity wall thickness on the mounting hole depth and the mounting hole depth on the axial length of the fastening ring 24, it is more preferred that the ratio of the axial length to the fastening ring 24 is 1: 1. In the embodiment of the invention, the thickness range of the fastening ring 24 is 0.5-3 mm, the strength of the fastening ring 24 can be maintained under the thickness, the grounding ring 242 is ensured to be flat and not to deform, meanwhile, the contact area between the grounding ring 242 and external equipment is not too large, the pressure of the joint surface of the coaxial connector 2 and an installation hole in a cavity of the external equipment is facilitated, the coaxial connector 2 and the filter cavity 1 are combined more tightly, the coaxial connector 2 can be ensured to be grounded well, and further, the lower passive intermodulation level is ensured. Of course, the height and thickness of the fastening ring 24 can be adjusted according to actual needs.
Preferably, the end of the fastening ring 24 remote from the flange 22 is provided with a guide 241. The diameter of the guide portion 241 is about 0.4-1 mm smaller than that of the installation hole in the external device cavity, so that the fastening ring 24 can play a role in guiding and the fastening ring 24 can be easily inserted into the installation hole in the external device cavity.
Preferably, the end surface of the guiding portion 241 forms a grounding ring 242 for abutting with an external equipment cavity. The grounding ring 242 is arranged on the end face of the guide part 241, is in contact with an external equipment cavity after being installed, and is less affected by cavity dust; in addition, since the grounding ring 242 is disposed on the end surface of the guiding portion 241 and is annular, the area is small, which is beneficial to increase the pressure of the junction surface of the coaxial connector 2 and the mounting hole in the external device cavity, so that the coaxial connector 2 and the filter cavity 1 are more tightly combined, the coaxial connector 2 can be well grounded, and thus a lower passive intermodulation level is ensured.
Preferably, a gap (not numbered, the same applies hereinafter) is formed between the fastening ring 24 and the inner conductor 23, and the gap is filled with an insulating medium 25. The insulating medium 25 supports the inner conductor 23 to prevent the inner conductor 23 from vibrating in the external device cavity to cause the tail end of the inner conductor to contact with the coupling hole in the external device cavity, so as to avoid short circuit.
Preferably, the flange 22 is provided with a waterproof groove 221 for filling a sealing material along an outer edge of the fastening ring 24, so as to perform a waterproof function. In one embodiment of the present invention, the sealing material is a waterproof rubber ring 222, but of course, in the embodiment of the present invention, the sealing material is not limited to the waterproof rubber ring.
Fig. 2 to 4 show a filter 100 using the coaxial connector 2. Filter 100 include filter cavity 1 and with the coaxial connector that filter cavity 1 connects, mounting hole 11 has been seted up in the filter cavity, coaxial connector is foretell coaxial connector 2, tighrening ring 24 inserts in the mounting hole 11 and with 1 interference fit of filter cavity, tighrening ring 24's external diameter is greater than the internal diameter of mounting hole 11, its difference is between 0.02 ~ 0.05mm to do benefit to the equipment operation.
A cavity hole 13 communicated with the mounting hole 11 and a resonance column 12 positioned on one side of the cavity hole 13 are further arranged in the filter cavity 1, a coupling hole 121 is formed in the middle of the resonance column 12, an inner conductor 23 of the coaxial connector 2 sequentially penetrates through the mounting hole 11 and the cavity hole 13, the tail end of the inner conductor is suspended in the coupling hole 121, namely, the inner conductor 23 extends into the coupling hole 121 to form a gap with the coupling hole 121, and the coupling hole 121 is used for feeding coupling; the flange 22 of the coaxial connector 2 is provided with a plurality of screw holes, and the coaxial connector 2 and the filter cavity 1 can be further fixed by passing screws through the screw holes.
Preferably, a supporting medium for fixedly supporting the inner conductor 23 to prevent the inner conductor 23 from vibrating in the coupling hole is arranged in the filter cavity 1. In one embodiment of the present invention, the supporting medium may be embedded in a gap between the coupling hole 121 and the inner conductor 23; in another embodiment of the present invention, the supporting medium may be inserted between the cavity hole 13 and the inner conductor 23, and the supporting medium may be disposed in the filter cavity 1, so that the inner conductor 23 may be prevented from vibrating in the coupling hole and contacting the coupling hole 121 to cause a short circuit.
The present invention also provides a radio frequency device (not shown) comprising a filter 100 as described above. The radio frequency device adopts the coaxial connector 2, the stability of the whole radio frequency device can be enhanced, the influence of the external environment on the conventional indexes of the radio frequency device is reduced, and the stability of the radio frequency device is improved. The radio frequency devices include, but are not limited to, filters, power splitters, couplers, duplexers, and radio frequency amplifiers.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a coaxial connector, includes the shell, locates the flange of shell one end and inlay and locate the shell and with the insulated inner conductor of shell, its characterized in that, the flange is keeping away from the one end of shell is equipped with the tighrening ring, the tighrening ring is around stretching out the flange terminal surface inner conductor circumference sets up, and be used for coaxial connector insert when external equipment cavity insert in the mounting hole of external equipment cavity with external equipment cavity interference fit and ground connection.
2. The coaxial connector of claim 1, wherein the fastening ring is integrally formed with the flange.
3. The coaxial connector of claim 1, wherein an end of the fastening ring remote from the flange is provided with a guide.
4. The coaxial connector of claim 3, wherein the guide forms a ground ring for abutting the external equipment cavity.
5. The coaxial connector of claim 1, wherein the fastening ring has an axial length of 4 to 10 mm; the external diameter of tighrening ring is greater than the internal diameter of mounting hole, just the external diameter with the difference of internal diameter is 0.02 ~ 0.05 mm.
6. The coaxial connector of claim 1, wherein a gap is formed between the fastening ring and the inner conductor, and the gap is filled with an insulating medium.
7. The coaxial connector of claim 1, wherein the flange is provided with a waterproof groove for filling a sealing material along an outer peripheral ring of the fastening ring.
8. A filter comprises a filter cavity and a coaxial connector connected with the filter cavity, wherein the filter cavity is provided with a mounting hole, the coaxial connector is the coaxial connector in any one of claims 1-7, and a fastening ring is inserted into the mounting hole and is in interference fit with the filter cavity.
9. The filter of claim 8, wherein a resonant column is disposed in the filter cavity, a coupling hole is disposed in the middle of the resonant column, and the inner conductor extends into the coupling hole to form a gap therebetween; and a supporting medium for fixedly supporting the inner conductor is arranged in the filter cavity.
10. A radio frequency device comprising a filter according to claim 8 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014227.1A CN107800008B (en) | 2017-10-26 | 2017-10-26 | Coaxial connector, filter and radio frequency device |
| PCT/CN2018/097589 WO2019080568A1 (en) | 2017-10-26 | 2018-07-27 | Coaxial connector and filter, and radio frequency device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014227.1A CN107800008B (en) | 2017-10-26 | 2017-10-26 | Coaxial connector, filter and radio frequency device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107800008A CN107800008A (en) | 2018-03-13 |
| CN107800008B true CN107800008B (en) | 2020-05-05 |
Family
ID=61547858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711014227.1A Active CN107800008B (en) | 2017-10-26 | 2017-10-26 | Coaxial connector, filter and radio frequency device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107800008B (en) |
| WO (1) | WO2019080568A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800008B (en) * | 2017-10-26 | 2020-05-05 | 京信通信技术(广州)有限公司 | Coaxial connector, filter and radio frequency device |
| CN109301480B (en) * | 2018-09-25 | 2021-03-09 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
| CN112908736B (en) * | 2021-01-26 | 2022-04-12 | 深圳国人科技股份有限公司 | Radio frequency switch device |
| CN113612080B (en) * | 2021-09-22 | 2023-09-08 | 华南师范大学 | Flange connector with low passive intermodulation interference |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035588A (en) * | 1988-02-01 | 1989-09-13 | Amp公司 | Microcoaxial connector family |
| JP2008060163A (en) * | 2006-08-29 | 2008-03-13 | Citizen Electronics Co Ltd | Shield connection structure for electronic apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800008B (en) * | 2017-10-26 | 2020-05-05 | 京信通信技术(广州)有限公司 | Coaxial connector, filter and radio frequency device |
-
2017
- 2017-10-26 CN CN201711014227.1A patent/CN107800008B/en active Active
-
2018
- 2018-07-27 WO PCT/CN2018/097589 patent/WO2019080568A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035588A (en) * | 1988-02-01 | 1989-09-13 | Amp公司 | Microcoaxial connector family |
| JP2008060163A (en) * | 2006-08-29 | 2008-03-13 | Citizen Electronics Co Ltd | Shield connection structure for electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019080568A1 (en) | 2019-05-02 |
| CN107800008A (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107800008B (en) | Coaxial connector, filter and radio frequency device | |
| KR100801357B1 (en) | Coaxial connector with enhanced insulator member and associated methods | |
| US7803018B1 (en) | Inner conductor end contacting coaxial connector and inner conductor adapter kit | |
| US8513963B2 (en) | Radio frequency testing apparatus | |
| KR20130050623A (en) | Dielectric resonator filter | |
| KR101720261B1 (en) | Tunable high frequency filter | |
| CN103199397A (en) | Radio frequency coaxial connector | |
| KR101097281B1 (en) | High power rf push connector | |
| CN104900951A (en) | Dielectric filter and communication equipment | |
| US20160254607A1 (en) | Connector for cavity filter | |
| CN106356603B (en) | Broadband probe coaxial coupler | |
| US8647148B2 (en) | High frequency interface and connecting device for connecting a high-frequency cable to the high frequency interface | |
| CN207625034U (en) | Coaxial connector and filter, radio-frequency devices | |
| EP2347467A1 (en) | Radio frequency coaxial to stripline / microstrip transition | |
| CN102856717B (en) | Radiofrequency coaxial connector with vacuum sealing function | |
| CN106099511A (en) | A kind of being suitable for inserts and threaded dual-purpose adapter soon | |
| CN215067007U (en) | Three-coaxial electromagnetic shielding test system | |
| CN209929614U (en) | Coaxial connector for cavity filter | |
| KR20100122231A (en) | Rf filter with double resonator strructure | |
| CN103311749B (en) | A kind of radio frequency connector | |
| CN208256972U (en) | A kind of radio frequency (RF) coaxial connector of high-performance high stability | |
| CN105874658A (en) | Connector and radio-frequency communication device | |
| CN207215922U (en) | Portable radio-frequency coaxial cable phase refinement equipment | |
| CN106207616B (en) | Millimeter wave connector is used in the push-in test of one kind | |
| CN205406861U (en) | Simple and easy radio frequency connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200120 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Applicant before: Jingxin Communication System (China) Co., Ltd. Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before: Jingxin Communication System (Guangzhou) Co., Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |