CN103972615A - Novel low pass filtering pathway and communication cavity device with same - Google Patents
Novel low pass filtering pathway and communication cavity device with same Download PDFInfo
- Publication number
- CN103972615A CN103972615A CN201310058589.6A CN201310058589A CN103972615A CN 103972615 A CN103972615 A CN 103972615A CN 201310058589 A CN201310058589 A CN 201310058589A CN 103972615 A CN103972615 A CN 103972615A
- Authority
- CN
- China
- Prior art keywords
- low pass
- pass filtering
- novel low
- hole
- stub
- 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.)
- Granted
Links
Classifications
-
- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a novel low pass filtering pathway and a communication cavity device with the same. The novel low pass filtering pathway comprises a metal cavity and a covering plate covering the metal cavity. A plurality of sub cavities communicated sequentially are arranged in the metal cavity. A connecting window is arranged between two adjacent sub cavities. A conductor rod penetrating the sub cavities communicated sequentially is arranged in the metal cavity. Resonant rods penetrating the conductor rods and facing the covering plate to expose are arranged on the conductor rod corresponding to the connecting windows. The covering plate is provided with screw holes corresponding to the resonant rods. A group of tuning screws provided with mounting holes penetrate the screw holes to extend into the cavity to be in capacitive coupling with the corresponding resonant rods, and the mounting holes sleeve medium sleeves. The novel low pass filtering pathway and the communication cavity device with the same have the advantages that electrical specifications are excellent, and externally tuning can be implemented to facilitate machining and large-scale production; according to the communication cavity device with the pathway, high suppression can be produced in the external wide frequency band range, and the requirement of high isolation between communication system are met.
Description
Technical field
The present invention relates to a kind ofly for signal of communication being carried out to the communication cavity device of low-pass filtering, being specifically related to can outside tuning novel low pass filtering access and adopt the communication cavity device of this access structure, as filter, mixer and duplexer.
Background technology
Along with the development of the integration of three networks and enabling of LTE frequency range, relatively traditional frequency range, new frequency range is just towards lower and higher both direction development.Along with the introducing of new standard or system, market is more and more higher to the requirement of passive device.
Mixer, duplexer and filter are widely used in the communications field as passive communication device, especially field of radio frequency communication.And along with television system, video on-demand system join communication system passage, need a kind of high performance low pass filter, and realizing on the basis of cable TV signal normal transmission, need has higher inhibition degree to mobile communication system simultaneously.
For low pass filter, traditional implementation is generally Chebyshev's type, common sugarcoated haws shape low pass filter for example, its advantage be simple in structure, be easy to realize but the shortcoming precision that to be band outer declines slowly, Out-of-band rejection degree consistency low, filtering characteristic depends on processing and assembling.Such low pass filter is usually used in suppressing outside far-end band, and generally, it cannot meet the requirement of the high-isolation between real system.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of with outer decline faster, Out-of-band rejection degree low pass filtering access higher, that be convenient to outside tuning correction.
Another object of the present invention is to provide a kind of filter that comprises described novel low pass filtering access.
A further object of the present invention is to provide a kind of mixer that comprises described novel low pass filtering access.
A further object of the present invention is to provide a kind of duplexer that comprises described novel low pass filtering access.
For reaching the object of foregoing invention, the present invention is achieved through the following technical solutions:
Novel low pass filtering access of the present invention, comprises metallic cavity and fixes the cover plate of installation with metallic cavity; In described metallic cavity, be provided with a plurality of sub-chambeies that are connected in turn, between adjacent two sub-chambeies, be provided with connection window, in described metallic cavity, be provided with the sub-chamber that a stub is respectively connected described in running through in turn, and this stub is connected with the two-port that cavity two ends are provided with, stub is provided with hole corresponding to described connection the window's position place, is equipped with one end towards the resonant rod of cover plate in described hole; Described cover plate is provided with the screwed hole corresponding with above-mentioned resonant rod present position, each screwed hole arranges a tuning screw for going deep into metallic cavity and corresponding resonant rod capacitive coupling through this screwed hole, this tuning screw is provided with installing hole towards one end of metallic cavity, and is socketed with medium socket cylinder in this installing hole.
Filter of the present invention, it comprises aforesaid novel low pass filter access structure
Mixer of the present invention, it comprises aforesaid novel low pass filter access structure.
Duplexer of the present invention, it comprises aforesaid novel low pass filter access structure.
Compared with prior art, tool of the present invention has the following advantages:
Novel low pass filtering access of the present invention and adopt its communication cavity device, on the basis of traditional sugarcoated haws shape low pass filter, the harmonic oscillator that its Low ESR is partly replaced to an equivalent inductance capacitances in series is incorporated to primary path, the equivalent inductance of this harmonic oscillator is realized by the high impedance forming between resonant rod and chamber wall, and equivalent capacity is realized by the slot-coupled between tuning screw and resonant rod inwall.The communication cavity device forming like this, band is outer to decline comparatively fast, and can in band limits very wide outside band, produce stronger inhibition, thereby meets the requirement of the high-isolation between communication system; Meanwhile, there is the advantages such as insertion loss is little, standing-wave ratio is little, passive intermodulation is low, power capacity is large.On the other hand, tuning screw is fixed on the outer surface of cover plate, makes the debugging of low pass filter very convenient, saves the step of in the past repeatedly tearing lid debugging open, has guaranteed the intermodulation performance that it is good when improving low pass filter production efficiency.
Accompanying drawing explanation
Fig. 1 is the package assembly schematic diagram of novel low pass filtering access of the present invention.
Fig. 2 is the stub of novel low pass filtering access of the present invention and the mounting structure figure of resonant rod.
Fig. 3 is the equivalent circuit diagram of novel low pass filtering access of the present invention.
Embodiment
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated:
Refer to Fig. 1, the embodiment of novel low pass filtering access of the present invention, this novel low pass filtering access is the low pass filtering access of design forming in metallic cavity 1, includes metallic cavity 1 and fixes the cover plate 2 of installation with metallic cavity 1.A plurality of sub-chambeies of the interior formation of metallic cavity 1, and between adjacent two sub-chamber 11-15, be connection window 16, thereby each sub-chamber 11-15 of UNICOM successively, each sub-chamber 11-15 that stub 3 traverses metallic cavity 1 longitudinally in metallic cavity be connected window 16, and be fixedly connected with the port one 7,18 that metallic cavity 1 two ends arrange.Be provided with through stub 3 and towards the resonant rod 31-34 of cover plate with each relevant position that connects the corresponding stub 3 of window 16.Cover plate 2 is provided with the screwed hole 23 corresponding with above-mentioned resonant rod 31-34 present position and gos deep into metallic cavity 1 and the capacitively coupled tuning screw 21 of corresponding resonant rod 31-34 through this screwed hole 24.
Please, further combined with Fig. 2 and Fig. 3, be convenient to clearer concrete structure and the electrical principle of understanding the present embodiment.
Described a plurality of sub-chamber 11-15 substantially in the same direction along a straight line path arrange in turn, the spatial volume Size-dependent of sub-chamber 11-15 is realized in the design of electrical performance indexes, preferably, except the party upwards two sub-chambeies 11 of head and the tail and 15 spatial volume relatively little, substantially the same or the akin spatial volume of the sub-chamber 12-14 of all the other sections of mediating, can be considered etc. large.
Described stub 3 two ends respectively with two port ones 7,18 inner wire (not shown) is connected, two port ones 7 and 18 are fixed in metallic cavity 1, thereby stub 3 is fixed on the longitudinal axis of metallic cavity 1, thereby through the connection window 16 between each sub-chamber 11-15 and adjacent sub-chamber.Stub 3 positions that connect window 16 correspondences have hole 36 at each, make resonant rod pass this hole 36 and be one end and stretch to cover plate 2 setting, and within its other end is set to stepped this hole 36 that is retained in stub 3, stair-stepping design makes to leave between resonant rod and hole 36 gap 35 with stub 3 welding, thereby be beneficial to scolding tin, resonant rod and stub 3 are welded mutually, and scolding tin is difficult for overflowing this hole 36.Each resonant rod stretches out stub 3 and the height that presents just differs, and different resonant rods adapt to different frequency ranges and have different length, form thus a plurality of resonant rod 31-34 that arrange along same straight line.
Screwed hole 23 on cover plate 2 and adapt to the position of stubs 3 and resonant rod 31-34 and linearly arrange through the tuning screw 21 of this screwed hole 23, the internal thread of the external screw thread of tuning screw 21 and screwed hole 23 is supporting, thereby adjustable tuning screw 21 gos deep into the degree of depth in metallic cavity 1.One end that tuning screw 21 stretches into cavity has installing hole, and through hole or the blind hole of this installing hole for reducing gradually to internal orifice dimension, the medium sleeve 22 that this installing hole is made by polytetrafluoroethylene or other insulating material for inner sleeve one.One end end face that tuning screw 21 is exposed on cover plate 2 has flat recess or cross recess for ease of rotation tuning screw rod 21, and the shaft of tuning screw 21 these ends is hex bolts structure.
The installing hole of tuning screw 21 is stepped, and large in the aperture at installing hole access port place, more past internal orifice dimension is less.Described medium sleeve 22 and tuning screw 21 interference assemblings, and medium sleeve 22 exposes the installing hole of tuning screw 21 and forms a boss, after medium sleeve 22 and tuning screw 21 interference are assembled, on medium sleeve 22, local raised head face exceeds the end face of tuning screw 21, be conducive to like this assembling, and medium sleeve 22 difficult drop-offs and effectively prevent tuning screw 21 and stub 3 short circuits.
When cover plate 2 is installed in metallic cavity 1, along with going deep into of tuning screw 21, medium sleeve 22 in tuning screw 21 can inner sleeve resonant rod 31-34, thereby realize the capacitive coupling between resonance screw rod 21 and corresponding resonant rod 31-34, thereby by tuning screw 21, medium sleeve 22 coordinates installation with the resonant rod 31-34 on stub 3, as shown in Figure 3, these resonant rods 31-34, connect window 16, medium sleeve 22 and tuning screw 21 have formed the equivalent capacity inductance in equivalent inductance capacitances in series harmonic oscillator together, can produce capacitive coupling and inductive effect, form a series resonant circuit, its equivalent capacity inductance is by tuning screw 21, stub 3, the relative position of resonant rod 31-34 and resonant rod 31-34 and tuning screw 21 decides, this series resonant circuit forms transmission zero at the inhibition passband of low pass filtering access.
The equivalent series harmonic oscillator in series of like this, corresponding equivalent inductance and equivalent capacity.A plurality of equivalent series harmonic oscillators and then match make low pass filtering access can be in the outer very wide band limits of band the higher inhibition degree (more than 70dB) of (relative bandwidth can reach 45%) generation.
In another not shown embodiment of the present invention, the arrangement of described a plurality of sub-chamber 11-15 can arrange along bending path not in same direction, and for example, the orientation of a plurality of sub-chamber 11-15 forms right angle.As adaptive change, described stub 3 also needs to be designed to bending.Screwed hole 23 and tuning screw 21 on corresponding cover plate are done adaptive arranging.Visible, suitably change the structure of indivedual parts of the present invention, still do not affect the realization of technique effect of the present invention.
By the structure applications of novel low pass filtering access of the present invention in communication cavity device, in filter, mixer and duplexer, mixer is wherein also referred to as splitter according to the difference of port service condition, can bring into play better the performance of its high bandwidth inhibition degree.
Above-described embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (11)
1. novel low pass filtering access, comprises metallic cavity and fixes the cover plate of installation with metallic cavity; In described metallic cavity, be provided with a plurality of sub-chambeies that are connected in turn, between adjacent two sub-chambeies, be provided with connection window, in described metallic cavity, be provided with the sub-chamber that a stub is respectively connected described in running through in turn, and this stub is connected with the two-port that cavity two ends are provided with, stub is provided with hole corresponding to described connection the window's position place, is equipped with one end towards the resonant rod of cover plate in described hole; Described cover plate is provided with the screwed hole corresponding with above-mentioned resonant rod present position, each screwed hole arranges a tuning screw for going deep into metallic cavity and corresponding resonant rod capacitive coupling through this screwed hole, this tuning screw is provided with installing hole towards one end of metallic cavity, and is socketed with medium socket cylinder in this installing hole.
2. novel low pass filtering access according to claim 1, is characterized in that: arrange in the same direction in described a plurality of sub-chambeies, described stub is corresponding linearly.
3. novel low pass filtering access according to claim 1, is characterized in that: do not arrange in described a plurality of sub-chambeies in same direction the corresponding bending that is of described stub.
4. according to the novel low pass filtering access described in any one in claims 1 to 3, it is characterized in that: one end that described resonant rod is retained in the hole of stub is set to stepped, weld mutually at hole place with stub, it is consistent or inconsistent that each resonant rod on this stub exceeds the height of corresponding hole.
5. according to the novel low pass filtering access described in any one in claims 1 to 3, it is characterized in that: the installing hole of described tuning screw is through hole or blind hole.
6. novel low pass filtering access according to claim 5, is characterized in that: the installing hole of described tuning screw is stepped, and its aperture at installing hole access port place is greater than the aperture of installing hole inside.
7. novel low pass filtering access according to claim 6, is characterized in that: described medium sleeve and tuning screw interference are assembled, and medium sleeve exposes the installing hole of tuning screw and forms a boss.
8. according to the novel low pass filtering access described in any one in claims 1 to 3, it is characterized in that: in described a plurality of sub-chambeies, its minor chamber between two sub-chambeies of head and the tail is impartial large.
9. a filter, is characterized in that, comprises the overall structure of novel low pass filtering access as claimed in any of claims 1 to 8 in one of claims.
10. a mixer, is characterized in that, comprises the overall structure of novel low pass filtering access as claimed in any of claims 1 to 8 in one of claims.
11. 1 kinds of duplexers, is characterized in that, comprise the overall structure of novel low pass filtering access as claimed in any of claims 1 to 8 in one of claims.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310058589.6A CN103972615B (en) | 2013-01-29 | 2013-01-29 | Novel low pass filtering access and adopt its communication cavity device |
| PCT/CN2013/079284 WO2014117482A1 (en) | 2013-01-29 | 2013-07-12 | Novel low-pass filtering path and communication cavity device using same |
| BR112015011114A BR112015011114A8 (en) | 2013-01-29 | 2013-07-12 | LOW PASS FILTER PATH AND COMMUNICATION CAVITY COMPONENT USING THE SAME |
| TW102144762A TWI542070B (en) | 2013-01-29 | 2013-12-06 | Low-pass filter path and the use of its communication cavity device |
| HK15100839.8A HK1200597A1 (en) | 2013-01-29 | 2015-01-26 | New type low pass filter path and communication cavity component using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310058589.6A CN103972615B (en) | 2013-01-29 | 2013-01-29 | Novel low pass filtering access and adopt its communication cavity device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103972615A true CN103972615A (en) | 2014-08-06 |
| CN103972615B CN103972615B (en) | 2016-07-06 |
Family
ID=51241858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310058589.6A Active CN103972615B (en) | 2013-01-29 | 2013-01-29 | Novel low pass filtering access and adopt its communication cavity device |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN103972615B (en) |
| BR (1) | BR112015011114A8 (en) |
| HK (1) | HK1200597A1 (en) |
| TW (1) | TWI542070B (en) |
| WO (1) | WO2014117482A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977586A (en) * | 2016-06-23 | 2016-09-28 | 江苏华灿电讯股份有限公司 | Low-frequency ultra-wideband filter |
| CN108199124A (en) * | 2018-02-08 | 2018-06-22 | 京信通信系统（中国）有限公司 | Elliptic Function Type low-pass filter and radio-frequency devices |
| CN110416676A (en) * | 2019-08-01 | 2019-11-05 | 京信通信技术(广州)有限公司 | Combiner |
| CN110416672A (en) * | 2019-08-01 | 2019-11-05 | 京信通信技术(广州)有限公司 | High-pass filter and communication cavity device with it |
| WO2023159482A1 (en) * | 2022-02-25 | 2023-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | A communication device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020145490A1 (en) * | 2001-04-04 | 2002-10-10 | Adc Telecommunications, Inc. | Filter structure including circuit board |
| US20060111070A1 (en) * | 2004-10-19 | 2006-05-25 | Anders Svensson | DC extracting arrangement and a filter |
| CN101931113A (en) * | 2009-06-25 | 2010-12-29 | 泰科电子(上海)有限公司 | Low-pass filter |
| CN102354778A (en) * | 2011-08-24 | 2012-02-15 | 京信通信系统（中国）有限公司 | Elliptic function low-path filtering path and communication cavity device adopting same |
| CN203300771U (en) * | 2013-01-29 | 2013-11-20 | 京信通信系统（中国）有限公司 | Novel low-pass filtering pathway, filter, combiner and duplexer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3966197B2 (en) * | 2003-03-19 | 2007-08-29 | 三菱電機株式会社 | Dual mode filter |
| CN101409377A (en) * | 2008-11-24 | 2009-04-15 | 丹东华讯电子有限公司 | Cavity filter structure mathematical response model and cavity filter for mobile communication network thereof |
| CN102386463B (en) * | 2011-08-24 | 2013-11-20 | 京信通信系统（中国）有限公司 | Communication cavity device and combining and distribution structure thereof |
-
2013
- 2013-01-29 CN CN201310058589.6A patent/CN103972615B/en active Active
- 2013-07-12 WO PCT/CN2013/079284 patent/WO2014117482A1/en active Application Filing
- 2013-07-12 BR BR112015011114A patent/BR112015011114A8/en active Search and Examination
- 2013-12-06 TW TW102144762A patent/TWI542070B/en active
-
2015
- 2015-01-26 HK HK15100839.8A patent/HK1200597A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020145490A1 (en) * | 2001-04-04 | 2002-10-10 | Adc Telecommunications, Inc. | Filter structure including circuit board |
| US20060111070A1 (en) * | 2004-10-19 | 2006-05-25 | Anders Svensson | DC extracting arrangement and a filter |
| CN101931113A (en) * | 2009-06-25 | 2010-12-29 | 泰科电子(上海)有限公司 | Low-pass filter |
| CN102354778A (en) * | 2011-08-24 | 2012-02-15 | 京信通信系统（中国）有限公司 | Elliptic function low-path filtering path and communication cavity device adopting same |
| CN203300771U (en) * | 2013-01-29 | 2013-11-20 | 京信通信系统（中国）有限公司 | Novel low-pass filtering pathway, filter, combiner and duplexer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977586A (en) * | 2016-06-23 | 2016-09-28 | 江苏华灿电讯股份有限公司 | Low-frequency ultra-wideband filter |
| CN108199124A (en) * | 2018-02-08 | 2018-06-22 | 京信通信系统（中国）有限公司 | Elliptic Function Type low-pass filter and radio-frequency devices |
| CN108199124B (en) * | 2018-02-08 | 2020-06-02 | 京信通信技术(广州)有限公司 | Elliptic function type low-pass filter and radio frequency device |
| CN110416676A (en) * | 2019-08-01 | 2019-11-05 | 京信通信技术(广州)有限公司 | Combiner |
| CN110416672A (en) * | 2019-08-01 | 2019-11-05 | 京信通信技术(广州)有限公司 | High-pass filter and communication cavity device with it |
| CN110416672B (en) * | 2019-08-01 | 2024-02-27 | 京信通信技术(广州)有限公司 | High-pass filter and communication cavity device with same |
| CN110416676B (en) * | 2019-08-01 | 2024-02-27 | 京信通信技术(广州)有限公司 | Combiner device |
| WO2023159482A1 (en) * | 2022-02-25 | 2023-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | A communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015011114A8 (en) | 2022-07-05 |
| CN103972615B (en) | 2016-07-06 |
| WO2014117482A1 (en) | 2014-08-07 |
| TW201431172A (en) | 2014-08-01 |
| TWI542070B (en) | 2016-07-11 |
| HK1200597A1 (en) | 2015-08-07 |
| BR112015011114A2 (en) | 2017-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6676171B2 (en) | Filters and wireless network devices | |
| CN102354778B (en) | Elliptic function low-path filtering path and communication cavity device adopting same | |
| CN103972615A (en) | Novel low pass filtering pathway and communication cavity device with same | |
| CN203300776U (en) | Communication cavity device and low-pass filtering path | |
| CN107104256B (en) | A kind of screw-filter and its design method | |
| CN203300771U (en) | Novel low-pass filtering pathway, filter, combiner and duplexer | |
| CN204947040U (en) | A kind of miniaturized duplexer with Wide stop bands height isolation characteristic | |
| CN104767023B (en) | A kind of substrate integration wave-guide electric tuning of variable passband number is shaken unit | |
| CN104409813A (en) | Vertical interdigital filter based on source-load coupling | |
| CN210403998U (en) | Ware is divided to merit of 3.5GHz frequency channel | |
| CN208173758U (en) | A kind of electrically tunable cavity combline bandpass filter | |
| CN203895578U (en) | Filter loading electric field by using coaxial cavity gradually changing spiral tubes | |
| CN203013895U (en) | Three-way cavity device and port combiner structure thereof | |
| CN203503761U (en) | Elliptic function type low pass filter | |
| CN211017336U (en) | 5G low intermodulation multi-frequency combiner | |
| CN102623776A (en) | Coaxial cavity-based rejection filter | |
| CN104659453A (en) | Wideband line combiner | |
| CN103474726B (en) | Elliptic Function Type low pass filter | |
| CN103545580A (en) | Miniaturized adjustable band stop filter | |
| CN206349477U (en) | One kind miniaturization band resistance broadband combiner | |
| CN202196847U (en) | Ultra-wideband combiner | |
| CN106785252A (en) | New resistance filter apparatus | |
| CN202196845U (en) | Elliptic function type low pass filtering access and communication cavity body device using same | |
| CN104953205A (en) | Coplanar waveguide band-stop filter based on novel split-ring resonator structure | |
| CN202633483U (en) | Adjustable band-rejection filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1200597 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1200597 Country of ref document: HK |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200115 Address after: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Address before: 510663 Guangzhou Science City, Guangdong Shenzhou Road, No. 10 Patentee before: COMBA TELECOM SYSTEMS (CHINA) Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230912 Address after: 510730, No. 6, Jin Lu, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee after: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. Patentee after: COMBA TELECOM SYSTEMS (GUANGZHOU) Ltd. Address before: 510730 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Patentee before: COMBA TELECOM TECHNOLOGY (GUANGZHOU) Ltd. |