CN103000994A - Micro-strip antenna unit and array thereof - Google Patents
Micro-strip antenna unit and array thereof Download PDFInfo
- Publication number
- CN103000994A CN103000994A CN2012105123225A CN201210512322A CN103000994A CN 103000994 A CN103000994 A CN 103000994A CN 2012105123225 A CN2012105123225 A CN 2012105123225A CN 201210512322 A CN201210512322 A CN 201210512322A CN 103000994 A CN103000994 A CN 103000994A
- Authority
- CN
- China
- Prior art keywords
- antenna unit
- micro
- medium substrate
- primary radiation
- radiation paster
- 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.)
- Pending
Links
Images
Landscapes
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a micro-strip antenna unit and an array thereof and belongs to antennas. The antenna unit comprises a first dielectric substrate and a second dielectric substrate positioned over the first dielectric substrate, wherein a primary radiation patch is arranged over the first dielectric substrate, a parasitic patch and a covering dielectric slab are arranged over the second dielectric substrate, an earth plate is arranged under the first dielectric substrate, and a baffle board is arranged under the earth plate. Through arrangement of the parasitic patch in the micro-strip antenna unit, under the assistance of the covering dielectric slab, resonance gain is achieved, the grain value of the micro-strip antenna is improved effectively; aperture-coupled feed of an H-shaped groove and direct feed of the primary irradiation patch are not performed in the same layer of the antenna unit, therefore the isolation is effectively improved, a micro-strip feed network is simple after array combination of the antenna unit, and the using loss is low; and simultaneously, the micro-strip antenna unit and the array can be widely applied to aviation airborne computer systems, and are simple in structure, suitable for industrial production and easy to popularize.
Description
Technical field
The present invention relates to a kind of antenna, in particular, the present invention relates generally to a kind of microband antenna unit and array thereof.
Background technology
Microstrip antenna (microstrip antenna) is for to enclose thin metal layer as ground plate in the one side of a thin-medium substrate, another side is made the metal patch of definite shape with the photoetching caustic solution, the antenna that utilizes microstrip line or coaxial probe that the paster feed is consisted of, at present in this area for improving its yield value and the isolation when the microstrip antenna dual polarization feed has part Study, for example increase parasitic patch or adopt the structure of double applying blade unit to improve antenna gain, compare the antenna of single paster, yield value has apparent in view raising; And for example the back of the body cavity configuration of microstrip antenna improved, thereby improve antenna gain; And the mode feed that adopts two H grooves arranged in the existing high isolation dual polarized feed scheme, but it uses in reality owing to will arrange simultaneously at the ground plate reverse side feeder line of perpendicular polarization and horizontal polarization, increase with array element number after the group battle array, the feeder network more complicated, and feeder loss is large; And constantly widening along with the microstrip antenna application, the mode of aforementioned raising gain and isolation progressively can not satisfy the demand of use, therefore be further to improve the yield value of microstrip antenna and the high-isolation of dual polarization feed, be necessary to do again further research and improvement based on aforementioned prior art.
Summary of the invention
One of purpose of the present invention is for above-mentioned deficiency, a kind of microband antenna unit and array thereof are provided, isolation when solving the yield value of microstrip antenna in the prior art and dual polarization feed with expectation can not satisfy user demand, and the technical problem such as service wear is large.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
One aspect of the present invention provides a kind of microband antenna unit, comprise that the top is provided with the first medium substrate of primary radiation paster, comprise also in the described antenna element that the top is provided with the second medium substrate of parasitic patch, and the second medium substrate places the top of first medium substrate, the top of described second medium substrate also is provided with the overwrite media plate, the below of first medium substrate is provided with ground plate, and the below of described ground plate also is provided with reflecting plate;
Described ground plate is provided with H shape groove, and H shape groove connect to be used for the microstrip line of feed, and microstrip line places the downside of ground plate; Primary radiation paster on the described first medium substrate also connects the microstrip line for feed;
Described primary radiation paster, parasitic patch and H shape groove are on the perpendicular straight line of same and reflecting plate.
As preferably, further technical scheme is: have cross crotch near the center of described primary radiation paster, parasitic patch is frame structure, and the size of parasitic patch and primary radiation paster match.
Further technical scheme is: the described microstrip line that is connected with the primary radiation paster also is connected ground plate by coaxial line.
Also further technical scheme is: described overwrite media plate, second medium substrate, first medium substrate, ground plate are equipped with froth bed each other, and unified being installed on the reflecting plate.
The present invention provides a kind of micro-strip antenna array on the other hand, described micro-strip antenna array comprises at least four above-mentioned microband antenna units, and microband antenna unit is spliced into one mutually, described connection H shape groove and primary radiation paster access respectively separately general sub-miniature A connector for the microstrip line of feed, are connected with follow-up system.
As preferably, further technical scheme is: described microband antenna unit is double arrangement side by side.
Further technical scheme is: adopt screw or bolt to be fixed as one around the described micro-strip antenna array.
Compared with prior art, one of beneficial effect of the present invention is: by set up parasitic patch in microstrip antenna, lower assisting of overwrite media plate simultaneously, realize resonance gain, Effective Raise the yield value of microstrip antenna, and the metallic reflection plate can be so that the energy emission of primary radiation paster be more concentrated, and because H shape groove aperture-coupled and the direct feed of primary radiation paster are not carried out at the same layer of antenna element, the probability of phase mutual interference when therefore effectively having reduced the dual polarization feed, improve isolation, and microstrip feed network is simple after the antenna element group battle array, and loss is less in the use; A kind of microband antenna unit provided by the present invention and array thereof can be widely used in the Aviation AirborneComputer system simultaneously, and simple in structure, are suitable for suitability for industrialized production, are easy to promote.
Description of drawings
Fig. 1 is for being used for the structural representation of explanation one embodiment of the invention;
Fig. 2 is for being used for the structural representation of explanation another embodiment of the present invention;
Among the figure, 1 is that primary radiation paster, 2 is that first medium substrate, 3 is that parasitic patch, 4 is that second medium substrate, 5 is that overwrite media plate, 6 is that ground plate, 7 is that reflecting plate, 8 is that H shape groove, 9 is that microstrip line, 10 is that coaxial line, 11 is cross crotch.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing.
With reference to shown in Figure 1, one embodiment of the present of invention are a kind of microband antenna units, it comprises that the top is provided with the first medium substrate 2 of primary radiation paster 1 and the second medium substrate 4 that the top is provided with parasitic patch 3, is arranged on second medium substrate 4 top of first medium substrate 2; Overwrite media plate 5 is set above second medium substrate 4 again, ground plate 6 is set below first medium substrate 2; Setting up reflecting plate 7 below ground plate 6, this reflecting plate 7 is metal material, and it act as and makes the energy of 1 radiation of primary radiation paster more concentrated; In the present embodiment, need prefabricated H shape groove 8 on aforementioned ground plate 6, and these H shape groove 8 connections are used for the microstrip line 9 of feed, and be the high-isolation during assurance dual polarization feed uses, also microstrip line 9 need be placed the downside of ground plate 6; Simultaneously the primary radiation paster 1 on the first medium substrate 2 is also connected the microstrip line 9 that is used for feed; Again with reference to shown in Figure 1, in assembling process, also need aforesaid primary radiation paster 1, parasitic patch 3 and H shape groove 8 on the perpendicular straight line of same and reflecting plate 7.And because microstrip antenna has been a class antenna that exists in the prior art, therefore aforementioned dielectric-slab, primary radiation paster 1, parasitic patch 3 all can be selected with reference to prior art with the material of microstrip line 9, improvement of the present invention does not lie in this, and be the concrete structure of antenna element, should be understood to, by means of the material of prior art intermediary scutum and radiation patch, be set to the antenna unit structure in the present embodiment, all can solve above-mentioned at least one the listed technical problem of the present invention.
And be when improving the antenna gain value, to widen frequency band, also can when using, realize microstrip antenna double frequency-band by the size of regulating primary radiation paster 1 and parasitic patch 3, specifically be the preferred embodiment that the present invention is used for the technical solution problem, still with reference to shown in Figure 1, near the center of above-mentioned primary radiation paster 1, offer cross crotch 11, and parasitic patch 3 is set to frame structure, and the size of parasitic patch 3 is set to match with primary radiation paster 1.
Again according to another embodiment of the present invention: the above-mentioned microstrip line 9 that is connected with primary radiation paster 1 also is connected ground plate 6 by coaxial line 10, and its effect is be used to the impedance transformation that carries out microstrip line 9, then directly gives primary radiation unit 1 feed with microstrip line 9.
Microband antenna unit structure in above-described embodiment is in practical set, the inventor is with reference to prior art, another kind of preferred embodiment of the present invention is provided, namely in overwrite media plate 5, second medium substrate 4, first medium substrate 2, ground plate 6 gap each other, all set up for the froth bed of filling, and unified being installed on the reflecting plate 7.
With reference to shown in Figure 2, an alternative embodiment of the invention is a kind of micro-strip antenna array, has the microband antenna unit described in a plurality of above-described embodiments in this micro-strip antenna array, and a plurality of microband antenna units are spliced into one mutually, carry out feed and adopt two microstrip lines 9 to connect respectively H shape groove 8 in a plurality of microband antenna units with primary radiation paster 1, and these two microstrip lines 9 access respectively general sub-miniature A connector separately, are connected with follow-up system.And aforesaid general sub-miniature A connector full name is Small A Type.It is a kind of typical microwave high-frequency connector.It uses highest frequency is 18GHz.The characteristic feature of SMA is to have the 1/4-36UNS threaded connection, and the outer conductor internal diameter is 4.13mm, and inner conductor outer diameter is that its medium of 1.27mm is PTFE (polytetrafluoroethylene).
With reference to shown in Figure 2, in another embodiment of the present invention, above-mentioned microband antenna unit is set to four, and is double arrangement side by side again.Simultaneously for ease of fixing, be preferably in micro-strip antenna array around establish through hole, adopt screw or bolt to be fixed and be integrated.
The present invention in actual use, when carrying out the dual polarization feed, continuous rising along with frequency, the isolation of H shape groove aperture-coupled and the direct feed of primary radiation paster tends towards stability, in one of the inventor comparatively excellent embodiment, adopt above-mentioned microstrip antenna group battle array after, its yield value can reach approximately 11dB, two feed port isolation integral body are lower than-30dB, but and at the Da Yue-54dB of the frequency place of 14.4GHz.
Except above-mentioned, also need to prove " embodiment ", " another embodiment " that speak of in this manual, " embodiment " etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included among at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and execution mode will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be obvious.
Claims (7)
1. microband antenna unit, comprise that the top is provided with the first medium substrate (2) of primary radiation paster (1), it is characterized in that: comprise also in the described antenna element that the top is provided with the second medium substrate (4) of parasitic patch (3), and second medium substrate (4) places the top of first medium substrate (2), the top of described second medium substrate (4) also is provided with overwrite media plate (5), the below of first medium substrate (2) is provided with ground plate (6), and the below of described ground plate (6) also is provided with reflecting plate (7); Described ground plate (6) is provided with H shape groove (8), and H shape groove (8) connect to be used for the microstrip line (9) of feed, and microstrip line (9) places the downside of ground plate (6); Primary radiation paster (1) on the described first medium substrate (2) also connects the microstrip line (9) that is used for feed; Described primary radiation paster (1), parasitic patch (3) and H shape groove (8) are on the perpendicular straight line of same and reflecting plate (7).
2. microband antenna unit according to claim 1, it is characterized in that: have cross crotch (11) near the center of described primary radiation paster (1), parasitic patch (3) is frame structure, and the size of parasitic patch (3) and primary radiation paster (1) match.
3. microband antenna unit according to claim 1 and 2, it is characterized in that: the described microstrip line (9) that is connected with primary radiation paster (1) also is connected ground plate (6) by coaxial line (10).
4. microband antenna unit according to claim 3, it is characterized in that: described overwrite media plate (5), second medium substrate (4), first medium substrate (2), ground plate (6) are equipped with froth bed each other, and unified being installed on the reflecting plate (7).
5. micro-strip antenna array, it is characterized in that: described micro-strip antenna array comprises at least four described microband antenna units of claim 1 to 4, and microband antenna unit is spliced into one mutually, the microstrip line (9) that described connection H shape groove (8) and primary radiation paster (1) are used for feed accesses respectively general sub-miniature A connector separately, is connected with follow-up system.
6. micro-strip antenna array according to claim 5 is characterized in that: described microband antenna unit is two arrangements of sweeping and sweeping.
7. it is characterized in that according to claim 5 or 6 described micro-strip antenna arrays: adopt screw or bolt to be fixed as one around the described micro-strip antenna array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105123225A CN103000994A (en) | 2012-12-04 | 2012-12-04 | Micro-strip antenna unit and array thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105123225A CN103000994A (en) | 2012-12-04 | 2012-12-04 | Micro-strip antenna unit and array thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103000994A true CN103000994A (en) | 2013-03-27 |
Family
ID=47929291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105123225A Pending CN103000994A (en) | 2012-12-04 | 2012-12-04 | Micro-strip antenna unit and array thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103000994A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825096A (en) * | 2014-01-24 | 2014-05-28 | 张家港保税区国信通信有限公司 | Integrated antenna with high isolation degree |
| CN105406190A (en) * | 2014-08-06 | 2016-03-16 | 启碁科技股份有限公司 | Dual-polarization planar antenna and composite antenna |
| CN106058434A (en) * | 2016-06-07 | 2016-10-26 | 中国电子科技集团公司第三十六研究所 | Antenna applicable to mobile terminal |
| CN106329106A (en) * | 2016-10-13 | 2017-01-11 | 哈尔滨工程大学 | Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology |
| CN106711595A (en) * | 2016-12-12 | 2017-05-24 | 武汉滨湖电子有限责任公司 | Low-profile C-waveband dual-polarization multi-layer microstrip patch antenna unit |
| CN106856260A (en) * | 2015-12-08 | 2017-06-16 | 中国航空工业集团公司雷华电子技术研究所 | A kind of broadband dual polarized antenna feeding network of miniaturization |
| CN108777353A (en) * | 2018-05-24 | 2018-11-09 | 湖南国科锐承电子科技有限公司 | A kind of high isolation low-cross polarization Double-polarization micro-strip array antenna |
| CN109786986A (en) * | 2019-03-21 | 2019-05-21 | 四川轻化工大学 | Multilayer microstrip rectenna |
| CN110838619A (en) * | 2019-11-19 | 2020-02-25 | 榆林学院 | Dual-frequency two-unit MIMO antenna based on discrete triangular parasitic structure |
| CN111162378A (en) * | 2019-12-26 | 2020-05-15 | 东南大学 | Microstrip antenna |
| CN112117533A (en) * | 2020-08-18 | 2020-12-22 | 北京邮电大学 | Dual-frequency dual-linear polarization phased array antenna and antenna unit |
| CN112505971A (en) * | 2019-09-16 | 2021-03-16 | 群创光电股份有限公司 | Electronic device and method for manufacturing the same |
| CN112886196A (en) * | 2021-01-08 | 2021-06-01 | 深圳市信维通信股份有限公司 | Base station antenna and base station equipment |
| CN115275580A (en) * | 2022-08-15 | 2022-11-01 | 中国电子科技集团公司第五十四研究所 | Dual-polarized cavity array antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083358A (en) * | 2007-05-10 | 2007-12-05 | 北京航空航天大学 | Design of three-frequency dual-circle polarization GPS microstrip patch antenna |
| KR20100119528A (en) * | 2010-08-27 | 2010-11-09 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| CN201853810U (en) * | 2010-10-18 | 2011-06-01 | 东南大学 | High-isolation dual-polarized microstrip antenna with gap feed |
| CN102280718A (en) * | 2011-04-29 | 2011-12-14 | 上海交通大学 | Ku waveband low-profile dual-frequency dual-polarization array antenna |
-
2012
- 2012-12-04 CN CN2012105123225A patent/CN103000994A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083358A (en) * | 2007-05-10 | 2007-12-05 | 北京航空航天大学 | Design of three-frequency dual-circle polarization GPS microstrip patch antenna |
| KR20100119528A (en) * | 2010-08-27 | 2010-11-09 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| CN201853810U (en) * | 2010-10-18 | 2011-06-01 | 东南大学 | High-isolation dual-polarized microstrip antenna with gap feed |
| CN102280718A (en) * | 2011-04-29 | 2011-12-14 | 上海交通大学 | Ku waveband low-profile dual-frequency dual-polarization array antenna |
Non-Patent Citations (2)
| Title |
|---|
| 徐坤: "缝隙耦合馈电的双极化微带无线研究", 《中国优秀硕士学位论文全文数据库信息科技辑》, 15 July 2009 (2009-07-15) * |
| 汪伟等: "一种双极化微带天线阵的设计", 《雷达科学与技术》, vol. 2, no. 4, 31 August 2004 (2004-08-31) * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825096A (en) * | 2014-01-24 | 2014-05-28 | 张家港保税区国信通信有限公司 | Integrated antenna with high isolation degree |
| CN105406190A (en) * | 2014-08-06 | 2016-03-16 | 启碁科技股份有限公司 | Dual-polarization planar antenna and composite antenna |
| CN105406190B (en) * | 2014-08-06 | 2018-03-30 | 启碁科技股份有限公司 | Flat board dual polarized antenna and combined antenna |
| CN106856260A (en) * | 2015-12-08 | 2017-06-16 | 中国航空工业集团公司雷华电子技术研究所 | A kind of broadband dual polarized antenna feeding network of miniaturization |
| CN106856260B (en) * | 2015-12-08 | 2020-04-28 | 中国航空工业集团公司雷华电子技术研究所 | Miniaturized broadband dual-polarized antenna feed network |
| CN106058434A (en) * | 2016-06-07 | 2016-10-26 | 中国电子科技集团公司第三十六研究所 | Antenna applicable to mobile terminal |
| CN106058434B (en) * | 2016-06-07 | 2019-06-28 | 中国电子科技集团公司第三十六研究所 | A kind of antenna applied to mobile terminal |
| CN106329106A (en) * | 2016-10-13 | 2017-01-11 | 哈尔滨工程大学 | Broadband high-isolation low-cross-polarization dual-polarization microstrip antenna array based on SIW technology |
| CN106711595A (en) * | 2016-12-12 | 2017-05-24 | 武汉滨湖电子有限责任公司 | Low-profile C-waveband dual-polarization multi-layer microstrip patch antenna unit |
| CN108777353A (en) * | 2018-05-24 | 2018-11-09 | 湖南国科锐承电子科技有限公司 | A kind of high isolation low-cross polarization Double-polarization micro-strip array antenna |
| CN109786986A (en) * | 2019-03-21 | 2019-05-21 | 四川轻化工大学 | Multilayer microstrip rectenna |
| CN112505971A (en) * | 2019-09-16 | 2021-03-16 | 群创光电股份有限公司 | Electronic device and method for manufacturing the same |
| CN110838619A (en) * | 2019-11-19 | 2020-02-25 | 榆林学院 | Dual-frequency two-unit MIMO antenna based on discrete triangular parasitic structure |
| CN110838619B (en) * | 2019-11-19 | 2021-12-31 | 榆林学院 | Dual-frequency two-unit MIMO antenna based on discrete triangular parasitic structure |
| CN111162378A (en) * | 2019-12-26 | 2020-05-15 | 东南大学 | Microstrip antenna |
| CN112117533A (en) * | 2020-08-18 | 2020-12-22 | 北京邮电大学 | Dual-frequency dual-linear polarization phased array antenna and antenna unit |
| CN112117533B (en) * | 2020-08-18 | 2021-08-31 | 北京邮电大学 | Dual-frequency dual-linear polarization phased array antenna and antenna unit |
| CN112886196A (en) * | 2021-01-08 | 2021-06-01 | 深圳市信维通信股份有限公司 | Base station antenna and base station equipment |
| CN112886196B (en) * | 2021-01-08 | 2023-12-19 | 深圳市信维通信股份有限公司 | Base station antenna and base station equipment |
| CN115275580A (en) * | 2022-08-15 | 2022-11-01 | 中国电子科技集团公司第五十四研究所 | Dual-polarized cavity array antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103000994A (en) | Micro-strip antenna unit and array thereof | |
| CN205029022U (en) | Portable circular polarization microstrip antenna array row | |
| CN106252858B (en) | S/X wave band Shared aperture miniaturization flat plane antenna | |
| CN203386887U (en) | Antenna oscillator and antenna equipped with same | |
| CN203071222U (en) | Dual polarization ultra-wideband radiation device | |
| CN102891360A (en) | Broadband miniaturization double-rotating circularly polarized antenna | |
| CN101645538B (en) | Low-sidelobe horn antennas of micro-strip excitation | |
| CN104900998A (en) | Low-profile dual-polarized base station antenna | |
| CN102891374B (en) | Tri-band integrated antenna | |
| CN201503918U (en) | Horn antenna with constant wave-beam | |
| CN202797262U (en) | Broadband loose-coupling phased-array feed-source unit | |
| CN207611862U (en) | A kind of array antenna for realizing multi-modal vortex electromagnetic wave | |
| CN104112903A (en) | Microstrip antenna using parasitical feed metal columns | |
| CN201536151U (en) | X-band dual-polarized low mutual coupling microstrip antenna | |
| CN108987919A (en) | A kind of polygon ultra-wideband antenna of compact unsymmetric structure | |
| CN112688079A (en) | Dual-polarized wide beam antenna based on loading bent grounding metal column | |
| CN204857972U (en) | Fractal hollowed out design ultra wide band dual polarized antenna oscillator | |
| CN203644954U (en) | Dual-polarized ceiling antenna | |
| CN102904011A (en) | Balance microstrip line transition full-mode dual-ridged integrated waveguide feed dipole printed antenna | |
| CN105161848A (en) | Elliptical slot circularly-polarized microstrip antenna | |
| CN208111675U (en) | The aerial array of broadband radiating unit and the application broadband radiating unit | |
| CN205029013U (en) | Low profile circular polarization microstrip antenna | |
| CN103337712A (en) | An antenna radiation unit and an electricity feeding method | |
| CN105048110A (en) | Ultra-wideband dual-polarized antenna oscillator employing fractal hollow design | |
| CN203071223U (en) | Ultra wideband dual polarization antenna radiation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |