CN103346376A - Gradual change fin line extension waveguide space power distribution synthesizer - Google Patents
Gradual change fin line extension waveguide space power distribution synthesizer Download PDFInfo
- Publication number
- CN103346376A CN103346376A CN2013102648692A CN201310264869A CN103346376A CN 103346376 A CN103346376 A CN 103346376A CN 2013102648692 A CN2013102648692 A CN 2013102648692A CN 201310264869 A CN201310264869 A CN 201310264869A CN 103346376 A CN103346376 A CN 103346376A
- Authority
- CN
- China
- Prior art keywords
- power
- fin line
- waveguide
- gradual change
- expansion
- 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
Images
Landscapes
- Microwave Amplifiers (AREA)
Abstract
The invention discloses a gradual change fin line extension waveguide space power distribution synthesizer. According to the gradual change fin line extension waveguide space power distribution synthesizer, a low-loss and broadband extension waveguide space power distribution synthesizing structure is adopted, an extension waveguide is mainly composed of a coaxial step-shaped impedance transformation structure and 16 antipode fin line arrays with gradually changed impedance and uniform in high amplitude and high in power distribution synthesizing efficiency, each antipode fin line array can achieve one-way amplification of power on a micro-strip circuit through an antipode fin line - micro-strip line transformation structure, and final power synthesis is achieved in the extension waveguide. Due to the fact that a gain amplification circuit and a power amplification circuit of a power amplifier are placed outside the extension waveguide, the radiating problem is effectively solved, and power capacity of a system is greatly improved. According to the gradual change fin line extension waveguide space power distribution synthesizer, the applicable frequency range can cover multiple frequency bands such as microwaves and millimeter waves, and output power can be adjusted flexibly according to bandwidth requirements of different frequency bands and specific power devices.
Description
Technical field
The present invention relates to a kind of gradual change fin line expansion waveguide space power division synthesizer.
Background technology
The microwave and millimeter wave solid-state power amplifier has become the important topic of microwave and millimeter wave area research as an important component part of systems such as microwave and millimeter wave radar, guidance and communication.Along with to the improving constantly of amplifier demanded power output, the power output of single amplification chip no longer can satisfy the needs of system works, therefore, must adopt multichannel is amplified, power is synthetic technology with the power output of the whole amplifying circuit of effective raising.
Because the technical scheme that adopts of traditional planar circuit power division synthetic technology more complicated all on structure realizes reduces the wastage and the efficiently radiates heat problem all is difficult to solution, thereby combined coefficient and synthetic power are not very good.Spatial power synthetic technology based on waveguide can prevent radiation loss effectively, has that bandwidth, loss are low, an advantage such as rapid heat dissipation, amplitude-phase consistency height and power capacity are big, has remedied the deficiency of planar circuit power synthetic technique preferably.Thereby, become the research focus of millimeter wave spatial power synthetic technology gradually based on the power synthetic technique of waveguide.
Spatial power distributes synthetic technology mainly to adopt lamination mode in the waveguide at present, by being positioned over the amplification of the active fin wire antenna realization power on every stacked.The distribution of power and synthetic realize in waveguide that by means of active fin wire antenna battle array typical implementation structure as shown in Figure 1.The advantage of this structure is compact conformation, but its maximum shortcoming is to reach effective heat radiation, simultaneously, also evokes higher mode easily, thereby has influenced the synthetic efficient of its power greatly.Simultaneously, owing to space in the waveguide is very narrow and small, can't place the amplification chip at millimeter wave frequency band, therefore, this structure only is suitable for microwave frequency band, can't realize that the power division of multichannel is with synthetic at millimeter wave frequency band.
Along with the extensive use of microwave and millimeter wave technology in fields such as radar, guidance and communications, more and more higher requirement has been proposed all for the indexs such as bandwidth, gain and power output of microwave and millimeter wave signal source.Though microwave and millimeter wave solid state power amplifier chip has that size is little, in light weight, reliability is high and advantage such as circuit structure compactness, but because the power output of present single solid state device is subjected to the restriction of problems such as the influence of self Semiconductor Physics characteristic and heat radiation, processing technology, impedance matching and do not reach the power output that requires in the actual engineering far away, thereby can't satisfy the requirement of the high-power communication system of microwave and millimeter wave.Therefore, under individual devices power output condition of limited, the power synthetic technique that adopts a plurality of solid state device is the effective ways of raising system power output.And the common problem that at present domestic and international power division synthetic technology runs into is how further to improve the power division combined coefficient effectively, reduce the wastage, increase bandwidth of operation and improve power capacity etc.
The technical problem to be solved in the present invention is exactly effectively to improve technical barriers such as the broadband of power division synthesizer, big capacity, high efficiency and low-loss.
Summary of the invention
The present invention has proposed a kind of novel broad-band multipath expansion waveguide space power division synthetic technology based on gradual change fin line array by domestic and international microwave and millimeter wave spatial power being distributed in-depth analysis and the research of synthetic technology.This technology adopts the expansion waveguide space power division composite structure with low-loss, broadband character, the expansion waveguide mainly has high amplitude-phase consistency by coaxial step-like impedance mapped structure and 16 tunnel and high power distributes the impedance transition mechanism of combined coefficient that utmost point fin line array is constituted, each road all can be by realizing that at microstrip circuit the single channel of power amplifies to utmost point fin line-microstrip line transformational structure to utmost point fin line, and final power is synthesized in the expansion waveguide and finished.This technology places gain amplifying circuit and the power amplification circuit of power amplifier outside the expansion waveguide, has not only solved heat dissipation problem effectively, and has improved the power capacity of system greatly.The suitable frequency range of this technology can cover a plurality of frequency ranges of microwave and millimeter wave, and power output can be adjusted in conjunction with concrete power device flexibly according to the bandwidth requirement of different frequency range.
Technical scheme of the present invention is as follows:
A kind of gradual change fin line expansion waveguide space power division synthesizer, it is characterized in that, electromagnetic wave at first enters broad-band multipath expansion waveguide by impedance transition mechanism expansion coaxial waveguide, enter the anti-gradual change of every roadlock to utmost point fin line by the expansion waveguide then, finish the distribution of power, each the road signal that enters the gradual change fin line enters little band planar circuit by fin line-microstrip line transformational structure, on the planar circuit of every road, amplify and the electromagnetic wave energy of power amplification after will amplifying enters each road to utmost point fin line again by little band-gradual change fin line array transformational structure by gain, 16 the tunnel finally finish in the expansion waveguide the power output of utmost point fin line and to collect with synthetic, and the signal after synthetic is the expansion coaxial waveguide output by output at last; By appropriate design coaxial and waveguide dimensions, to the size of step transition structure in the gradual change equation of utmost point fin line and position, the expansion waveguide, can realize in microwave and millimeter wave different frequency range that broadband power distributes with synthetic, this power division and synthetic implementation are owing to adopted the metal waveguide structure, thereby the energy loss in greatly reducing power division and synthesizing, improved combined coefficient; Therefore this expansion waveguide, makes radiating efficiency improve greatly owing to adopted axisymmetric radial radiation shape structure; The expansion waveguide is the same with coaxial line, also can there be the TEM mould, it is a kind of cylinder TEM mould, be that electric field is identical on the circumference of R at radius, magnetic field has only axial component, be magnetic field equal and opposite in direction on the circumference of R at radius, direction is tangential along circumference, and the electromagnetic field of expansion waveguide TEM mould distributes and has radial symmetry; The central inner conductor of expansion waveguide power combiner adopts the structure of step transition, and this structure has been carried out optimal design according to minimal reflection theory and transmission line model, and the method that adopts the expansion waveguide to combine with the impedance transition mechanism fin line suppresses the transmission of higher mode; Impedance transition mechanism adopts high frequency special microwave substrate to realize to the microstrip circuit in the utmost point fin line array transformational structure, the easement curve equation of fin line to 50 ohm normal impedance microstrip line is according to minimal reflection theory and transmission line model design, the curve design equation that adopts exponential function to combine with trigonometric function, realize inserting loss less than 0.3dB in broadband range, standing wave is less than 1.2.
Existing power division synthetic technology is owing to adopt lamination scheme in the waveguide, its shortcoming is to be difficult to further to improve the power division combined coefficient effectively, to reduce the wastage, increase bandwidth of operation and to improve power capacity etc., simultaneously because the waveguide dimensions of millimeter wave frequency band is all very little, be difficult to place the amplification chip, therefore, this technology is more remarkable in the shortcoming of the millimeter wave frequency band that is higher than 40GHz.
Purpose of the present invention is exactly broadband, high-frequency, high efficiency and the low-loss in will solving the microwave and millimeter wave power division and synthesizing.After adopting present technique, at microwave and millimeter wave frequency band, bandwidth of operation can reach more than the 10GHz, and the power division combined coefficient can be increased to more than 80% by about 60% of traditional lamination mode.
Description of drawings
Fig. 1 is the stacked power division synthesizer of existing microwave frequency band waveguide.
Fig. 2 is broadband expansion waveguide space power division synthesizer structure principle chart.
Fig. 2 (a) is gradual change fin line array extension waveguide space power division synthesizer structure chart.
Fig. 2 (b) be gradual change coaxial-expansion waveguide transitions structural metal part-structure figure.
Fig. 2 (c) is gradual change fin line-microstrip line Change-over knot composition.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Broad-band multipath based on gradual change fin line array of the present invention is expanded waveguide power division composite structure principle as shown in Figure 2.In this structure, electromagnetic wave at first enters broad-band multipath expansion waveguide by impedance transition mechanism expansion coaxial waveguide, enter the anti-gradual change of every roadlock to utmost point fin line by the expansion waveguide then, finish the distribution of power, each the road signal that enters the gradual change fin line enters little band planar circuit by fin line-microstrip line transformational structure, on the planar circuit of every road, amplify and the electromagnetic wave energy of power amplification after will amplifying enters each road to utmost point fin line again by little band-gradual change fin line array transformational structure by gain, 16 the tunnel finally finish in the expansion waveguide the power output of utmost point fin line and to collect with synthetic, and the signal after synthetic is the expansion coaxial waveguide output by output at last.
By appropriate design coaxial and waveguide dimensions, to the size of step transition structure in the gradual change equation of utmost point fin line and position, the expansion waveguide, can realize in microwave and millimeter wave different frequency range that broadband power distributes with synthetic, this power division and synthetic implementation are owing to adopted the metal waveguide structure, thereby the energy loss in greatly reducing power division and synthesizing, improved combined coefficient.In addition, therefore this expansion waveguide, makes radiating efficiency improve greatly owing to adopted axisymmetric radial radiation shape structure.
The expansion waveguide is the same with coaxial line, also can there be the TEM mould, by the correlation theory of expansion waveguide as can be known, it is a kind of cylinder TEM mould, is that electric field is identical on the circumference of R at radius, magnetic field has only axial component (φ component), be magnetic field equal and opposite in direction on the circumference of R at radius, direction is tangential along circumference, that is to say, the electromagnetic field of expansion waveguide TEM mould distributes and has radial symmetry, and this also is that we utilize the expansion waveguide to realize one of reason of power five equilibrium.
The central inner conductor of expansion waveguide power combiner has adopted the structure of step transition, this structure has been carried out optimal design according to minimal reflection theory and transmission line model, simultaneously, for the isolation that improves each port, improve the port standing wave and effectively solve the expansion waveguide in the higher mode interference problem that millimeter wave frequency band exists, the method that has adopted the expansion waveguide to combine with the impedance transition mechanism fin line here suppresses the transmission of higher mode.
Impedance transition mechanism adopts high frequency special microwave substrate to realize to the microstrip circuit in the utmost point fin line array transformational structure, the easement curve equation of fin line to 50 ohm normal impedance microstrip line is according to minimal reflection theory and transmission line model design, the curve design equation that has adopted exponential function to combine with trigonometric function, can realize inserting loss less than 0.3dB in broadband range, standing wave is less than 1.2.
The present invention not only can be increased to millimeter wave frequency band by traditional microwave frequency band with its suitable frequency range, thereby avoided amplifying in the existing implementation problem that chip is difficult to assemble, this technology has wideer working band simultaneously, higher power division combined coefficient, lower path loss and radiating mode more efficiently.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields (change as the way of the rectangular waveguide that links to each other with the expansion waveguide etc.), all in like manner be included in the scope of patent protection of the present invention.
Claims (1)
1. a gradual change fin line is expanded waveguide space power division synthesizer, it is characterized in that, electromagnetic wave at first enters broad-band multipath expansion waveguide by impedance transition mechanism expansion coaxial waveguide, enter the anti-gradual change of every roadlock to utmost point fin line by the expansion waveguide then, finish the distribution of power, each the road signal that enters the gradual change fin line enters little band planar circuit by fin line-microstrip line transformational structure, on the planar circuit of every road, amplify and the electromagnetic wave energy of power amplification after will amplifying enters each road to utmost point fin line again by little band-gradual change fin line array transformational structure by gain, 16 the tunnel finally finish in the expansion waveguide the power output of utmost point fin line and to collect with synthetic, and the signal after synthetic is the expansion coaxial waveguide output by output at last; By appropriate design coaxial and waveguide dimensions, to the size of step transition structure in the gradual change equation of utmost point fin line and position, the expansion waveguide, can realize in microwave and millimeter wave different frequency range that broadband power distributes with synthetic, this power division and synthetic implementation are owing to adopted the metal waveguide structure, thereby the energy loss in greatly reducing power division and synthesizing, improved combined coefficient; Therefore this expansion waveguide, makes radiating efficiency improve greatly owing to adopted axisymmetric radial radiation shape structure; The expansion waveguide is the same with coaxial line, also can there be the TEM mould, it is a kind of cylinder TEM mould, be that electric field is identical on the circumference of R at radius, magnetic field has only axial component, be magnetic field equal and opposite in direction on the circumference of R at radius, direction is tangential along circumference, and the electromagnetic field of expansion waveguide TEM mould distributes and has radial symmetry; The central inner conductor of expansion waveguide power combiner adopts the structure of step transition, and this structure has been carried out optimal design according to minimal reflection theory and transmission line model, and the method that adopts the expansion waveguide to combine with the impedance transition mechanism fin line suppresses the transmission of higher mode; Impedance transition mechanism adopts high frequency special microwave substrate to realize to the microstrip circuit in the utmost point fin line array transformational structure, the easement curve equation of fin line to 50 ohm normal impedance microstrip line is according to minimal reflection theory and transmission line model design, the curve design equation that adopts exponential function to combine with trigonometric function, realize inserting loss less than 0.3dB in broadband range, standing wave is less than 1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310264869.2A CN103346376B (en) | 2013-06-27 | 2013-06-27 | Gradual change fin line extension waveguide space power distribution synthesizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310264869.2A CN103346376B (en) | 2013-06-27 | 2013-06-27 | Gradual change fin line extension waveguide space power distribution synthesizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103346376A true CN103346376A (en) | 2013-10-09 |
| CN103346376B CN103346376B (en) | 2016-03-16 |
Family
ID=49281159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310264869.2A Expired - Fee Related CN103346376B (en) | 2013-06-27 | 2013-06-27 | Gradual change fin line extension waveguide space power distribution synthesizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103346376B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134843A (en) * | 2014-07-18 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Low-frequency broadband multi-channel coaxial space power distribution synthesizer and method |
| CN104518268A (en) * | 2014-12-24 | 2015-04-15 | 西安电子科技大学 | Planar multi-stage power divider |
| CN105762476A (en) * | 2016-04-12 | 2016-07-13 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide combining/distributing device |
| CN106952881A (en) * | 2017-03-15 | 2017-07-14 | 北京北广科技股份有限公司 | Water-cooled power combiner for high power solid state power amplifier |
| CN106992348A (en) * | 2017-04-14 | 2017-07-28 | 电子科技大学 | The broadband radial waveguide power divider/synthesizer of one species cycloid transition structure |
| CN106997982A (en) * | 2017-05-12 | 2017-08-01 | 电子科技大学 | A kind of Klopfenstein transition of mechanical impedance extension shaft power source distribution/synthesizer |
| CN107910625A (en) * | 2017-10-27 | 2018-04-13 | 西安恒达微波技术开发有限公司 | A kind of coaxial power splitter of super high power |
| CN108696254A (en) * | 2018-05-22 | 2018-10-23 | 广州联星科技有限公司 | microwave power combining amplifier |
| CN112019183A (en) * | 2020-08-27 | 2020-12-01 | 中电科仪器仪表有限公司 | Novel ultra-wideband power synthesis circuit impedance matching circuit and method |
| CN113702916A (en) * | 2021-06-24 | 2021-11-26 | 北京无线电测量研究所 | Compact 2-18GHz solid-state ultra-wideband transmitter |
| CN114114161A (en) * | 2021-10-20 | 2022-03-01 | 北京无线电测量研究所 | Compact airborne three-band solid-state transmitter and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280681A (en) * | 2011-05-13 | 2011-12-14 | 电子科技大学 | Power divider of coaxial-ridge waveguide-microstrip transformation structure |
| CN202363570U (en) * | 2011-10-31 | 2012-08-01 | 华南理工大学 | Air micro-strip high isolation radial power synthesis amplifier |
| CN102832432A (en) * | 2012-08-30 | 2012-12-19 | 北京遥测技术研究所 | Radial linear power divider/synthesizer |
-
2013
- 2013-06-27 CN CN201310264869.2A patent/CN103346376B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280681A (en) * | 2011-05-13 | 2011-12-14 | 电子科技大学 | Power divider of coaxial-ridge waveguide-microstrip transformation structure |
| CN202363570U (en) * | 2011-10-31 | 2012-08-01 | 华南理工大学 | Air micro-strip high isolation radial power synthesis amplifier |
| CN102832432A (en) * | 2012-08-30 | 2012-12-19 | 北京遥测技术研究所 | Radial linear power divider/synthesizer |
Non-Patent Citations (1)
| Title |
|---|
| 宁曰民等: ""对极鳍线在空间功率合成器中的应用"", 《微波学报》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134843A (en) * | 2014-07-18 | 2014-11-05 | 中国电子科技集团公司第四十一研究所 | Low-frequency broadband multi-channel coaxial space power distribution synthesizer and method |
| CN104518268A (en) * | 2014-12-24 | 2015-04-15 | 西安电子科技大学 | Planar multi-stage power divider |
| CN105762476A (en) * | 2016-04-12 | 2016-07-13 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide combining/distributing device |
| WO2017177577A1 (en) * | 2016-04-12 | 2017-10-19 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide combiner/divider |
| CN105762476B (en) * | 2016-04-12 | 2018-01-16 | 深圳市华讯方舟卫星通信有限公司 | Radial waveguide synthesis/distributor |
| CN106952881A (en) * | 2017-03-15 | 2017-07-14 | 北京北广科技股份有限公司 | Water-cooled power combiner for high power solid state power amplifier |
| CN106992348B (en) * | 2017-04-14 | 2019-07-19 | 电子科技大学 | The broadband radial waveguide power divider/synthesizer of one type cycloid transition structure |
| CN106992348A (en) * | 2017-04-14 | 2017-07-28 | 电子科技大学 | The broadband radial waveguide power divider/synthesizer of one species cycloid transition structure |
| CN106997982A (en) * | 2017-05-12 | 2017-08-01 | 电子科技大学 | A kind of Klopfenstein transition of mechanical impedance extension shaft power source distribution/synthesizer |
| CN106997982B (en) * | 2017-05-12 | 2019-10-01 | 电子科技大学 | A kind of Klopfenstein impedance transition extension shaft power source distribution/synthesizer |
| CN107910625A (en) * | 2017-10-27 | 2018-04-13 | 西安恒达微波技术开发有限公司 | A kind of coaxial power splitter of super high power |
| CN108696254A (en) * | 2018-05-22 | 2018-10-23 | 广州联星科技有限公司 | microwave power combining amplifier |
| CN108696254B (en) * | 2018-05-22 | 2023-12-26 | 广州联星科技有限公司 | Microwave power synthesis amplifier |
| CN112019183A (en) * | 2020-08-27 | 2020-12-01 | 中电科仪器仪表有限公司 | Novel ultra-wideband power synthesis circuit impedance matching circuit and method |
| CN113702916A (en) * | 2021-06-24 | 2021-11-26 | 北京无线电测量研究所 | Compact 2-18GHz solid-state ultra-wideband transmitter |
| CN114114161A (en) * | 2021-10-20 | 2022-03-01 | 北京无线电测量研究所 | Compact airborne three-band solid-state transmitter and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103346376B (en) | 2016-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103346376B (en) | Gradual change fin line extension waveguide space power distribution synthesizer | |
| CN103346375B (en) | Expansion waveguide spatial power distributes synthesizer | |
| CN105304998B (en) | Novel broadband radial curve gradual change ridge space power distribution/synthesizer | |
| WO2021068442A1 (en) | Low-loss feeding network and high-efficiency antenna device | |
| KR101647575B1 (en) | Differential high power amplifier for a low profile, wide band transmit array | |
| CN113517527B (en) | Single-sided double-ridge double-probe waveguide power divider, power combiner and synthesis method | |
| CN110112566A (en) | A kind of phased array antenna system of big broadband high radiation efficiency | |
| CN106953168B (en) | Plane millimeter wave MIMO antenna | |
| CN112382853A (en) | Full-shunt-feed common-caliber dual-polarized waveguide slot filter antenna array system | |
| CN107275738B (en) | Waveguide-microstrip power combiner based on magnetic coupling principle | |
| CN107706545B (en) | CTS array antenna system with wide-angle scanning function | |
| CN105186086A (en) | Ultra-wideband multi-channel power distributor and synthesizer | |
| CN103490133B (en) | Micro-strip multi-directional power divider/combiner based on flexible connection | |
| CN211743396U (en) | High-isolation gap ultra-wideband MIMO antenna | |
| CN103354301A (en) | Expansion coaxial power distribution synthesizer, power distribution method, power synthesis method | |
| CN108134206A (en) | Step ripple Terahertz electromagnetic horn | |
| CN109411851B (en) | Three-frequency-band coaxial embedded circular waveguide serpentine mode converter | |
| CN204333200U (en) | The spatial power combiner of a kind of waveguide-bis-Coupler in finline-microstrip line form | |
| CN104538718B (en) | A kind of spatial power combiner of the double Coupler in finline microstrip line forms of waveguide | |
| CN104362420A (en) | Broadband full-port matched waveguide power distributing/combining method | |
| CN210111041U (en) | Ultra-wideband dual-polarization feed source | |
| de Kok et al. | A review of pa-antenna co-design: Direct matching, harmonic tuning and power combining | |
| CN203398282U (en) | A microstrip antenna with triple coplanar concentric circular rings | |
| Mishra et al. | Investigation of binomial and chebyshev distribution on dielectric resonator antenna array | |
| Wang et al. | A millimeter-wave solid-state power combining circuit based on branch-waveguide directional coupler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190308 Address after: 266000 No. 98 Xiangjiang Road, Huangdao District, Qingdao City, Shandong Province Patentee after: China Electronics Technology Instrument and Meter Co., Ltd. Address before: 266000 No. 98 Xiangjiang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: The 41st Institute of CETC |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20210627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |