CN107611617A - A kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide - Google Patents
A kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide Download PDFInfo
- Publication number
- CN107611617A CN107611617A CN201710584057.4A CN201710584057A CN107611617A CN 107611617 A CN107611617 A CN 107611617A CN 201710584057 A CN201710584057 A CN 201710584057A CN 107611617 A CN107611617 A CN 107611617A
- Authority
- CN
- China
- Prior art keywords
- varactor
- pad
- metal
- ground pad
- minor matters
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention belongs to microwave power transmission technical field, there is provided a kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide, be made up of electric tuning reception antenna, electric tuning match circuit and single order voltage doubling rectifing circuit.Wherein, electric tuning reception antenna is made up of circular a quarter mould substrate integration wave-guide resonator, varactor, inductance, electric capacity, active line, ground pad, and the resonator is made up of intermediate medium substrate, upper strata radiation sheet metal, lower floor metal floor, plated-through hole array with deep-slotted chip breaker；Electric tuning match circuit converts minor matters, short-circuit minor matters, varactor, metal pad, inductance, electric capacity, active line, ground pad by impedance and formed；Single order voltage doubling rectifing circuit is made up of electric capacity, commutation diode, load resistance, metal pad, ground pad.The present invention has wider frequency rate tuning range while meets bimodulus excitation, realizes the circular a quarter mould substrate integration wave-guide RECTIFYING ANTENNA of two kinds of polarization modes of linear polarization and circular polarisation.
Description
Technical field
The invention belongs to microwave power transmission technical field, and in particular to a kind of electric tuning rectification day based on substrate integration wave-guide
Line.
Background technology
In recent years, with the sustainable development of wireless communication technology, and Internet of Things, radio sensing network, radio frequency identification marking
Continuing to bring out for the low power consuming devices such as label and wearable and implanted electronics, more environmentally friendly, life cycle length microwave power transmission skill
Art receives people and more and more paid close attention to.Microwave power transmission, it possesses the ability of long-distance transmissions microwave energy, in wireless power
Considerable role is play in Transmission system；And the core of microwave power transmission system is exactly RECTIFYING ANTENNA, its effect is to receive
Collect the microwave energy of input, and convert thereof into direct current energy.
To adapt to different working frequency range and work system, need of the people to the high speed electric tuning RECTIFYING ANTENNA of function admirable
Ask gradual increase；Electric tuning RECTIFYING ANTENNA has the characteristic of frequency agility due to it, has become more and more important.To meet electricity
The requirement of subsystem miniaturization, Antenna Impedance Matching is carried out using adjustable matching network, circuit can be made in multiple working frequency range
Peak power can effectively be transmitted and reduced and be lost, simplify circuit, while reduce size and cost.Substrate integration wave-guide is
It is a kind of to be realized on dielectric substrate similar to the guided wave structure of metal rectangular waveguide transmission characteristic, the structure is introduced, antenna can be made
Have the advantages that simple in construction, high gain, section are low, be easily integrated.And a quarter mould substrate integration wave-guide has and full mould
Substrate integration wave-guide identical characteristic, but its overall dimensions is reduced to original a quarter, has the function that miniaturization.Separately
Outside, a quarter mould substrate integration wave-guide has inborn advantage on bimodulus, dual-polarized realization.Therefore, to based on four points
One of the research and design of the electric tuning RECTIFYING ANTENNA of mould substrate integration wave-guide there is very real meaning.
The content of the invention
It is an object of the invention to provide a kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide, has wider frequency rate
Tuning range while meet bimodulus excitation, realize the circular a quarter mould substrate of two kinds of polarization modes of linear polarization and circular polarisation
Integrated waveguide RECTIFYING ANTENNA.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide, by electric tuning reception antenna, electric tuning match circuit
And single order voltage doubling rectifing circuit is formed；Characterized in that,
The electric tuning reception antenna include by intermediate medium substrate (1), upper strata a quarter circle radiation sheet metal (2,
3), metal floor of the lower floor with deep-slotted chip breaker (4), through intermediate medium substrate (1) and connect bilevel plated-through hole
Array (5) form circular a quarter mould substrate integration wave-guide resonant cavity and by the first varactor (6), the second transfiguration
Diode (7), the 3rd varactor (8), the first choke induction (10), the first power filtering capacitor (11), the first active line
(12), the reception antenna resonant frequency that the first ground pad (9), the second ground pad (13), the 3rd ground pad (14) are formed
Electric tuning network；Wherein, upper strata a quarter circle radiation sheet metal includes a quarter circle radiation sheet metal (2) and position
In the square-shaped radiation sheet metal (3) of a quarter circle radiation sheet metal home position；First varactor (6) and second becomes
Hold diode (7) to be connected across between a quarter circle radiation sheet metal (2) and square-shaped radiation sheet metal (3), the 3rd transfiguration two
Pole pipe (8) is connected across between square-shaped radiation sheet metal (3) and the first ground pad (9), and the first varactor (6), second become
Hold diode (7), the negative electrode of the 3rd varactor (8) is placed on square-shaped radiation sheet metal (3)；Square-shaped radiation sheet metal
(3) it is connected by the first choke induction (10) with the first active line (12), the first power filtering capacitor (11) is connected across first and added
Between electric wire (12) and the second ground pad (13), the 3rd ground pad (14) is used to be grounded；
The electric tuning match circuit includes the first impedance conversion minor matters (23), the second impedance conversion minor matters (25), short circuit
Minor matters (24), the 4th varactor (21), the 5th varactor (22), the first metal pad (20), the second choke induction
(15), second source filter capacitor (16), the second active line (17), the 4th ground pad (18), the 5th ground pad (1 9)；
Wherein, the 4th varactor (21) and the 5th varactor (22) be connected in parallel across the first impedance conversion minor matters (2 3) and
Between first metal pad (20), the 4th varactor (21), the negative electrode of the 5th varactor (22) are placed on the first metal
On pad (20), anode is placed in impedance conversion minor matters (23)；First metal pad (20) by the second choke induction (15) with
Second active line (17) is connected；Second source filter capacitor (16) is connected across the second active line (17) and the 4th ground pad
(18) between；First impedance conversion minor matters (23) connection upper strata a quarter circle radiation sheet metal (2), the second impedance conversion branch
Section (25) is connected the first impedance conversion minor matters (23) with short-circuit minor matters (24), and the 5th ground pad (1 9) is used to be grounded；
The single order voltage doubling rectifing circuit includes blocking storage capacitor (26), filtering storage capacitor (30), the first rectification two
Pole pipe (27), the second commutation diode (29), load resistance (32), the second metal pad (28), the 3rd metal pad (31),
6th ground pad (33)；Wherein, blocking storage capacitor (26) is connected across the second impedance conversion minor matters (25) and the second metal welding
Between disk (28), the first commutation diode (27) is connected across between the second metal pad (28) and the 6th ground pad (33), the
Two commutation diodes (29) are connected across between the second metal pad (28) and the 3rd metal pad (31), filtering storage capacitor (30)
It is in parallel with load resistance (32) to be connected across between the 3rd metal pad (31) and the 6th ground pad (33).
Further, the end of the short-circuit minor matters (24) is connected by metalized ground hole with lower metal floor.
Further, first choke induction (10), the second choke induction (15) use the inductor for being applied to high frequency,
The blocking storage capacitor (26), filtering storage capacitor (30) are using the capacitor suitable for high frequency.
(29 use Schottky diode for first commutation diode (27), the second commutation diode；First transfiguration
Diode (6), the second varactor (7), the 3rd varactor (8), the 4th varactor (21), the pole of the 5th transfiguration two
Pipe (22) should select the less varactor of series parasitic resistance.
The beneficial effects of the present invention are：
The present invention by a quarter mould substrate integrated wave-guide cavity wave upper strata radiant body maximum field opening position and
The varactor of capacitive is loaded in the input of match circuit, introduces electric tuning network, it can be ensured that RECTIFYING ANTENNA has wider
Tuning range.
The present invention, can be by being fed in one jiao of a quarter mould substrate integrated wave-guide cavity wave upper strata radiant body simultaneously
The electromagnetic wave of TE101 and TE202 both of which has been encouraged, when carrying out electric tuning to the RECTIFYING ANTENNA, TE101 and TE202 two
The resonance point of kind pattern can be simultaneously tuned；In addition, two open-circuit edges in upper strata radiant body occur for the radiation of RECTIFYING ANTENNA, by
In the presence of 50 ohm of feed lines, the symmetry of upper strata radiant body is broken, thus the TE202 patterns under perfect symmetry just by
It is decomposed into two very close resonance points, to a certain extent the frequency range corresponding to broadening TE202 patterns.
The present invention is adjusted by being fed in one jiao of a quarter mould substrate integrated wave-guide cavity wave upper strata radiant body
The length of two open-circuit edges of upper strata radiant body, the electromagnetic wave of TE202 patterns can be made to meet that amplitude is equal, 90 degree of phase difference
Condition, so as to form circularly polarised wave in far field, and the electromagnetic wave of TE101 patterns forms line polarization wave in far field.
The present invention simultaneously integrate broad tuning scope, bimodulus, dual polarization mode, can make antenna possess different frequency range with
And under conditions of complicated electromagnetic environment works fine ability.
The present invention by 50 ohm of feed lines by being placed on the one of a quarter mould substrate integrated wave-guide cavity wave upper strata radiant body
Angle, it can effectively suppress back wave and clutter.
Medium substrate material of the invention by selecting function admirable, it can effectively strengthen fringe radiation field, improve radiation
Efficiency.
The present invention, due to the presence of fringe radiation field, makes by using circular a quarter mould substrate integrated wave guide structure
Reception antenna size it is also smaller than a quarter of full mould substrate integration wave-guide, this significantly reduces the chi of reception antenna
It is very little, deep-slotted chip breaker is driven additionally by the cavity back side, can further reduce the size of reception antenna.
For the present invention as a result of substrate integrated waveguide technology, RECTIFYING ANTENNA has that low, high gain, section is lost is low etc. excellent
Point.
The present invention uses single order voltage doubling rectifing circuit topological structure, and loss is smaller, while improves VD.
The RECTIFYING ANTENNA integral manufacturing of the present invention is adapted to raw with printed circuit technique high-volume on same dielectric substrate
Production, cost are low.
Brief description of the drawings
Fig. 1 is the top view of RECTIFYING ANTENNA of the present invention.
Fig. 2 is the left view of RECTIFYING ANTENNA of the present invention.
Fig. 3 is the bottom schematic view of RECTIFYING ANTENNA of the present invention.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention
Not limited to this.
The present embodiment provides a kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide, its structure as shown in Figure 1, Figure 2, Fig. 3
Shown, intermediate medium substrate used is Rogers RT5880 in this example, and its dielectric constant is 2.2, and loss angle tangent is
0.0009, thickness 1.6mm.First varactor (6), the second varactor (7), the 3rd varactor (8), the 4th
The model SMV2019 of varactor (21), the 5th varactor (22), the first commutation diode (27), the second rectification
Diode (29) is using model HSMS2860；First choke induction (10) and the second choke induction (15) are 56nH,
First power filtering capacitor (11) and second source filter capacitor (16) are 1uF, blocking storage capacitor (26) and filtering energy storage
Electric capacity (30) is 100nF；Load resistance (32) is 3K.
The TE101 patterns of above-mentioned RECTIFYING ANTENNA can realize the tuning in the range of 1.84-2.6GHz, and TE202 patterns can be realized
Tuning in the range of 3.37- 4.71GHz.
The foregoing is only a specific embodiment of the invention, is used to help the principle that technical staff understands the present invention, this
The protection domain of invention is not limited to such particular example, those skilled in the art can according to it is disclosed by the invention these
Technical inspiration makes the various other various modifications for not departing from the present invention and combination, and these deformations and combination are still the present invention's
In protection domain.Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar mesh
Alternative features replaced；Disclosed all features or all methods or during the step of, except mutually exclusive
Beyond feature and/or step, it can be combined in any way.
Claims (3)
1. a kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide, by electric tuning reception antenna, electric tuning match circuit and
Single order voltage doubling rectifing circuit is formed；Characterized in that,
The electric tuning reception antenna include by intermediate medium substrate (1), upper strata a quarter circle radiation sheet metal (2,3),
Metal floor of the lower floor with deep-slotted chip breaker (4), through intermediate medium substrate (1) and connect bilevel plated-through hole array
(5) form circular a quarter mould substrate integration wave-guide resonant cavity and by the first varactor (6), the pole of the second transfiguration two
Manage (7), the 3rd varactor (8), the first choke induction (10), the first power filtering capacitor (11), the first active line (12),
The reception antenna resonant frequency electric tuning that first ground pad (9), the second ground pad (13), the 3rd ground pad (14) are formed
Network；Wherein, upper strata a quarter circle radiation sheet metal include a quarter circle radiation sheet metal (2) and positioned at four/
The square-shaped radiation sheet metal (3) of one circular radiation sheet metal home position；First varactor (6) and the second varactor
(7) be connected across between a quarter circle radiation sheet metal (2) and square-shaped radiation sheet metal (3), the 3rd varactor (8) across
It is connected between square-shaped radiation sheet metal (3) and the first ground pad (9), the first varactor (6), the second varactor
(7), the negative electrode of the 3rd varactor (8) is placed on square-shaped radiation sheet metal (3)；Square-shaped radiation sheet metal (3) passes through
One choke induction (10) is connected with the first active line (12), the first power filtering capacitor (11) be connected across the first active line (12) with
Between second ground pad (13), the 3rd ground pad (14) is used to be grounded；
The electric tuning match circuit includes the first impedance conversion minor matters (23), the second impedance conversion minor matters (25), short-circuit minor matters
(24), the 4th varactor (21), the 5th varactor (22), the first metal pad (20), the second choke induction (15),
Second source filter capacitor (16), the second active line (17), the 4th ground pad (18), the 5th ground pad (19)；Wherein,
Four varactors (21) are connected in parallel across the first impedance conversion minor matters (23) and the first metal with the 5th varactor (22)
Between pad (20), the 4th varactor (21), the negative electrode of the 5th varactor (22) are placed on the first metal pad (20)
Upper, anode is placed in impedance conversion minor matters (23)；First metal pad (20) passes through the second choke induction (15) and the second power-up
Line (17) is connected；Second source filter capacitor (16) is connected across between the second active line (17) and the 4th ground pad (18)；The
One impedance conversion minor matters (23) connection upper strata a quarter circle radiation sheet metal (2), the second impedance conversion minor matters (25) with it is short
Road minor matters (24) connect the first impedance conversion minor matters (23), and the 5th ground pad (19) is used to be grounded；
The single order voltage doubling rectifing circuit includes blocking storage capacitor (26), filtering storage capacitor (30), the first commutation diode
(27), the second commutation diode (29), load resistance (32), the second metal pad (28), the 3rd metal pad (31), the 6th connect
Ground pad (33)；Wherein, blocking storage capacitor (26) is connected across the second impedance conversion minor matters (25) and the second metal pad (28)
Between, the first commutation diode (27) is connected across between the second metal pad (28) and the 6th ground pad (33), the second rectification
Diode (29) is connected across between the second metal pad (28) and the 3rd metal pad (31), filtering storage capacitor (30) and load
Resistance (32) parallel connection is connected across between the 3rd metal pad (31) and the 6th ground pad (33).
2. the electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide as described in claim 1, it is characterised in that the short-circuit minor matters
(24) end is connected by metalized ground hole with lower metal floor.
3. the electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide as described in claim 1, it is characterised in that first chokes
Inductance (10), the second choke induction (15) are using the inductor suitable for high frequency, the blocking storage capacitor (26), filtering energy storage
Electric capacity (30) is using the capacitor suitable for high frequency；(29 use Xiao for first commutation diode (27), the second commutation diode
Special based diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584057.4A CN107611617B (en) | 2017-07-18 | 2017-07-18 | Electric tuning rectification antenna based on substrate integrated waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584057.4A CN107611617B (en) | 2017-07-18 | 2017-07-18 | Electric tuning rectification antenna based on substrate integrated waveguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107611617A true CN107611617A (en) | 2018-01-19 |
| CN107611617B CN107611617B (en) | 2019-12-10 |
Family
ID=61059943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710584057.4A Active CN107611617B (en) | 2017-07-18 | 2017-07-18 | Electric tuning rectification antenna based on substrate integrated waveguide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107611617B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429001A (en) * | 2018-03-08 | 2018-08-21 | 电子科技大学 | A kind of multipolarization reconfigurable antenna |
| CN108666750A (en) * | 2018-04-09 | 2018-10-16 | 广东曼克维通信科技有限公司 | Substrate integration wave-guide circular polarized antenna |
| CN108847529A (en) * | 2018-08-08 | 2018-11-20 | 南京信息职业技术学院 | A kind of petal RECTIFYING ANTENNA of broadband of ferrite load |
| CN113725570A (en) * | 2021-09-07 | 2021-11-30 | 北京邮电大学 | High-selectivity electrically-reconfigurable SIW band-pass filter and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367915A (en) * | 2013-07-10 | 2013-10-23 | 上海大学 | High-conversion-efficiency substrate integrated waveguide slot rectification antenna |
| CN105244635A (en) * | 2015-09-12 | 2016-01-13 | 电子科技大学 | Microstrip rectifying antenna |
| WO2017046579A1 (en) * | 2015-09-14 | 2017-03-23 | Drayson Technologies (Europe) Limited | Rf-to-dc converter |
-
2017
- 2017-07-18 CN CN201710584057.4A patent/CN107611617B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367915A (en) * | 2013-07-10 | 2013-10-23 | 上海大学 | High-conversion-efficiency substrate integrated waveguide slot rectification antenna |
| CN105244635A (en) * | 2015-09-12 | 2016-01-13 | 电子科技大学 | Microstrip rectifying antenna |
| WO2017046579A1 (en) * | 2015-09-14 | 2017-03-23 | Drayson Technologies (Europe) Limited | Rf-to-dc converter |
Non-Patent Citations (2)
| Title |
|---|
| ANA COLLADO: "24 GHz substrate integrated waveguide (SIW) rectenna for energy harvesting and wireless power transmission", 《 2013 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST (MTT)》 * |
| 童晓松: "基于SIW的缝隙阵列输能天线研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429001A (en) * | 2018-03-08 | 2018-08-21 | 电子科技大学 | A kind of multipolarization reconfigurable antenna |
| CN108666750A (en) * | 2018-04-09 | 2018-10-16 | 广东曼克维通信科技有限公司 | Substrate integration wave-guide circular polarized antenna |
| CN108847529A (en) * | 2018-08-08 | 2018-11-20 | 南京信息职业技术学院 | A kind of petal RECTIFYING ANTENNA of broadband of ferrite load |
| CN108847529B (en) * | 2018-08-08 | 2024-04-26 | 南京信息职业技术学院 | Ferrite loaded wideband petal-shaped rectifying antenna |
| CN113725570A (en) * | 2021-09-07 | 2021-11-30 | 北京邮电大学 | High-selectivity electrically-reconfigurable SIW band-pass filter and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107611617B (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107611617A (en) | A kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide | |
| CN102132292B (en) | Passive receivers for wireless power transmission | |
| US8610312B2 (en) | Induced power transmission circuit | |
| KR101739293B1 (en) | System for wireless power transmission and reception using in-band communication | |
| Lim et al. | Feasibility study on ambient RF energy harvesting for wireless sensor network | |
| CN103474778B (en) | A kind of bifrequency reception antenna and bifrequency RECTIFYING ANTENNA | |
| CN106452117B (en) | A kind of wideband rectifier applied to RF energy collection system | |
| CN103856149B (en) | A kind of integrated hybird environment energy collecting device | |
| KR20120019578A (en) | Wireless power transmission apparatus and method that transmit resonance power by multi-band | |
| US8368471B2 (en) | Resonance power generator | |
| CN105305663B (en) | The multiple antennas high efficiency RF energy collector that a kind of multi-electrode is formed | |
| CN112701485B (en) | Rectifying resonant ring small electric antenna applied to wireless communication and energy transmission | |
| CN213401533U (en) | Rectifying resonance loop small electric antenna applied to wireless communication and energy transmission | |
| CN111613889B (en) | Integrated radio frequency energy receiving device | |
| CN105915074B (en) | A kind of efficient microwave rectifier of broadband | |
| CN207926292U (en) | A kind of broadband rectifier collected suitable for ambient radio-frequency energy | |
| CN105048608A (en) | Energy collection rectifier for environmental electromagnetic wave | |
| CN114600361A (en) | High-frequency wireless power transmission system and transmitter and receiver thereof | |
| CN111129759B (en) | Integrated broadband circularly polarized rectifying antenna capable of being conformal | |
| Liu et al. | Low power broadband rectifier with wide dynamic input power range for RF-harvesting | |
| CN113964507B (en) | Electromagnetic metamaterial patch antenna for collecting radio frequency energy | |
| CN208570931U (en) | A kind of low power microwave receiving rectification antenna | |
| Yamashita et al. | High efficiency MW-Band rectenna using a coaxial dielectric resonator and distributed capacitors | |
| CN202275955U (en) | Varactor-embedded type frequency-modulation resonance antenna | |
| CN105281028B (en) | Zigbee antenna with harmonic restraining function |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |