CN202268462U - TD smart antenna and built-in micro-strip combiner thereof - Google Patents
TD smart antenna and built-in micro-strip combiner thereof Download PDFInfo
- Publication number
- CN202268462U CN202268462U CN201120372525XU CN201120372525U CN202268462U CN 202268462 U CN202268462 U CN 202268462U CN 201120372525X U CN201120372525X U CN 201120372525XU CN 201120372525 U CN201120372525 U CN 201120372525U CN 202268462 U CN202268462 U CN 202268462U
- Authority
- CN
- China
- Prior art keywords
- high frequency
- low frequency
- frequency
- open
- built
- 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.)
- Expired - Fee Related
Links
- 230000008054 signal transmission Effects 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000011185 multilayer composite material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The utility model discloses a TD (Time Division) smart antenna and a built-in micro-strip combiner thereof. The built-in micro-strip combiner comprises at least one high-frequency circuit board, a micro-strip circuit is carved on at least one surface of the high-frequency circuit board, and the micro-strip circuit comprises a high-frequency branch circuit, a low-frequency branch circuit, and a high-low-frequency combined circuit connected with the high-frequency branch circuit and the low-frequency branch circuit. Thus, the built-in micro-strip combiner provided by the utility model can enable the TD smart antenna to simultaneously receive and transmit signals of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) and TD-LTE (Time Division Long Term Evolution) networks.
Description
Technical field
The utility model relates to moving communicating field, relates in particular to a kind of TD smart antenna and built-in little band mixer thereof.
Background technology
In recent years; 3G (The third Generation Mobile Telecommunication, the third generation communication technology) technology constantly develops, and 3G subscription quantity also presents a rapidly rising trend; This presses for the quantity that increases cellular cell, also need improve the sub-district covering quality simultaneously.Face a lot of difficulties but implement.
At first, existing base station number is a lot, and site resource is very in short supply, and NodeB often selects that stand altogether in the base station with 2G (The Second Generation, second generation mobile communication technology), and the space of setting up of antenna will be more and more littler.Secondly, the quantity of base station constantly increases, and means the more antenna of needs, and the cost of operator is also just high more.At present; As the autonomous 3G standard TD-SCDMA of China (Time Division-Synchornization Code Division Multiple Access; The TD SDMA access) commercialization on a large scale also faces a lot of problems; And TD-LTE (Time Division-Synchronization Code Division Multiple Access-Long Term Evolution, TD SDMA inserts Long Term Evolution) technology still is among the continuous exploration.According to of the long-term plan of national relevant unit to the TD technology; TD-SCDMA and TD-LTE want and can merge well, can carry out the transition to LTE (Long Term Evolution, the Long Term Evolution) stage fast in the future; Avoid the repeated construction of base station, thereby reduce the waste of resource and manpower.
Present smart antenna is only supported one-segment or wideband section; Can not realize that TD-SCDMA and TD-LTE frequency range work independently simultaneously; Pass through mixer; Can make multisystem collective antenna, but present resonant cavity and strip line mixer exist big, the difficult processing of weight, problems such as volume is big, cost is higher, difficult assembling, are not suitable for being integrated into antenna inside.
Can know that to sum up existing multi-band signal path combining technique obviously exists inconvenience and defective, so be necessary to improve on reality is used.
The utility model content
To above-mentioned defective, the purpose of the utility model is to provide a kind of TD smart antenna and built-in little band mixer thereof, makes smart antenna can receive and dispatch the signal of TD-SCDMA and TD-LTE network simultaneously.
To achieve these goals; The utility model provides a kind of built-in little band mixer; Comprise: at least one HF link plate; One facet etch of said HF link plate has microstripline, said microstripline comprise high frequency along separate routes with low frequency along separate routes, and connect said high frequency along separate routes and the low-and high-frequency of low frequency shunt close the road.
According to described built-in little band mixer, said high frequency comprises along separate routes:
High frequency divides road port,
High frequency is main line along separate routes, and an end of said high frequency shunt main line is connected to said high frequency and divides road port, and the other end is connected in and closes route;
Many high frequency open-circuit lines, said many high frequency open-circuit lines are connected on the said high frequency shunt main line;
Said low frequency comprises along separate routes:
Low frequency divides road port,
Low frequency is main line along separate routes, and an end of said low frequency shunt main line is connected to said low frequency and divides road port, and the other end is connected in and closes route;
Many low frequency open-circuit lines, said many low frequency open-circuit lines are connected on the said low frequency shunt main line;
Said low-and high-frequency is closed the road and is comprised:
Close road port,
The zygonema road, said zygonema Lu Yiduan is connected in the said road port that closes, and the other end is connected in said high frequency main line and low frequency shunt main line along separate routes.
According to described built-in little band mixer; Said high frequency divides road port, low frequency to divide road port and closes road port and corresponds respectively to a breach, and each said breach and said high frequency divide road port, low frequency to divide road port and the microstripline that closes road port keeps at a certain distance away.
According to described built-in little band mixer; Said many high frequency open-circuit lines are four high frequency open-circuit lines, and said four high frequency open-circuit lines are connected in said high frequency main line along separate routes successively, wherein; Article one, the width of high frequency open-circuit line and the 4th high frequency open-circuit line does not wait equal in length; The width of second high frequency open-circuit line and the 3rd high frequency open-circuit line does not wait equal in length;
Said many low frequency open-circuit lines are four low frequency open-circuit lines, and said four low frequency open-circuit lines are connected on the said low frequency shunt main line successively, and wherein, the width of article one low frequency open-circuit line and the 4th low frequency open-circuit line does not wait equal in length; The width of second low frequency open-circuit line and the 3rd low frequency open-circuit line does not wait equal in length.
According to described built-in little band mixer, said HF link plate is a double-sided copper-clad HF link plate.
According to described built-in little band mixer, said high frequency is TD-LTE network signal transmission line along separate routes;
Said low frequency is TD-SCDMA network signal transmission line along separate routes.
In order to realize another goal of the invention of the utility model, the utility model also provides a kind of TD smart antenna that comprises above-mentioned any described built-in little band mixer.
According to described TD smart antenna, comprise 8 said built-in little band mixers of arranging side by side.
According to described TD smart antenna, said high frequency divides road port to be connected in the straight-through end of said low-and high-frequency calibration network; Said low frequency divides road port to be connected in the straight-through end of said low-frequency calibration network; The said road port that closes is connected to feeding network accordingly.
The utility model is set to comprise high frequency shunt and low frequency along separate routes through the HF link plate of built-in little band mixer; And be connected in high frequency and along separate routes close the road with low frequency low-and high-frequency along separate routes, make the smart antenna of the said built-in little band mixer of employing can receive and dispatch the signal of TD-SCDMA and TD-LTE network simultaneously; Guaranteed that TD-SCDMA and TD-LTE dual system can shared same secondary smart antennas; The installing space and the production cost of smart antenna have been saved; And be prone to processing and be prone to assembling; Alleviated the weight of smart antenna simultaneously.
Description of drawings
Fig. 1 is the front line map of the HF link plate of built-in little band mixer of providing of the utility model.
Embodiment
More clear for the purpose, technical scheme and the advantage that make the utility model, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Referring to Fig. 1; The utility model provides built-in little band mixer; Comprise: at least one HF link plate 100; One facet etch of HF link plate 100 has microstripline, microstripline comprise high frequency along separate routes 10 with low frequency along separate routes 20, and be connected in high frequency along separate routes 10 with low frequency along separate routes 20 low-and high-frequency close road 30.
In the utility model, built-in little band mixer has comprised at least one HF link plate 100, and this HF link plate 100 is provided with high frequency shunt 10, low frequency shunt 20 and low-and high-frequency and closes road 30.Its medium-high frequency shunt 10 is a TD-LTE network signal transmission line; TD-SCDMA network signal transmission line when low frequency shunt 20 is.Be the TD-LTE network signal that high frequency shunt 10 transmission belong to high-frequency signal, low frequency shunt 20 transmission belong to the TD-SCDMA network signal of low frequency signal.Built-in little band mixer that the utility model provides can be realized the synthetic of FA frequency range and D frequency band signals.
In an embodiment of the utility model, high frequency shunt 10 comprises:
High frequency is port one 01 along separate routes,
High frequency is main line 106 along separate routes, and a high frequency end of main line 106 along separate routes is connected in high frequency port one 01 along separate routes, and the other end is connected in and closes route 302;
Many high frequency open-circuit lines 102,103,104,105, many high frequency open-circuit lines 102,103,104,105 are connected on the high frequency shunt main line 106;
Low frequency divides road port 201,
Low frequency is main line 206 along separate routes, and an end of low frequency shunt main line 206 is connected in low frequency and divides road port 201, and the other end is connected in and closes route 302;
Many low frequency open-circuit lines 202,203,204,205, many low frequency open-circuit lines 202,203,204,205 are connected to low frequency main line 206 along separate routes;
Said low-and high-frequency is closed road 30 and is comprised:
Close route 302, zygonema road 302 1 ends are connected in and close road port 301, and the other end is connected in high frequency main line 106 and low frequency shunt main line 206 along separate routes.
High frequency along separate routes port one 01, low frequency divides road port 201 and closes road port 301 and corresponds respectively to a breach 108,208,308, and each breach 108,208,308 and high frequency port one 01, low frequency along separate routes divide road port 201 and close road port 301 and keep at a certain distance away.
In an embodiment of the utility model, many high frequency open-circuit lines are four high frequency open-circuit lines 102,103; 104,105, said four high frequency open-circuit lines 102; 103,104,105 are connected on the said high frequency shunt main line 106 successively; Wherein, the width of article one high frequency open-circuit line 102 and the 4th high frequency open-circuit line 105 does not wait equal in length; The width of second high frequency open-circuit line 103 and the 3rd high frequency open-circuit line 104 does not wait equal in length;
Said many low frequency open-circuit lines are four low frequency open-circuit lines 202,203,204,205; Said four low frequency open-circuit lines 202,203,204,205 are connected on the low frequency shunt main line 206 successively; Wherein, the width of article one low frequency open-circuit line 202 and the 4th low frequency open-circuit line 205 does not wait equal in length; The width of second low frequency open-circuit line 203 and the 3rd low frequency open-circuit line 204 does not wait equal in length.
In the utility model, HF link plate 100 is a double-sided copper-clad HF link plate, and it is this built-in little band mixer main body, and this HF link plate 100 forms the microstripline that is designed through simultaneously carry out technological process such as etching at certain.Certainly, the dielectric material of HF link plate 100 can be a certain or multilayer composite material; Also can other metallic conductors that cover beyond the copper removal on HF link plate 100 two-sided.01,201,301,8 open-circuit lines of 3 port ones 102,103,104,105,202,203,204,205 are arranged on the HF link plate 100.Port one 01,201,301 places are provided with breach 108,208,308 respectively, and breach and port one 01,201,301 copper sheets certain distance at interval can prevent short circuit.At breach 108,208,308 places can be connected with coaxial cable.
The utility model also provides the smart antenna that comprises any described built-in little band mixer.Preferably, smart antenna comprises that 8 are arranged said built-in little band mixer of putting side by side.Wherein, high frequency shunt port one 01 is connected in the straight-through end of said low-and high-frequency calibration network; Low frequency divides road port 201 to be connected in the straight-through end of said low-frequency calibration network; The said road port 301 that closes is connected in corresponding to ground and is connected to feeding network.The utility model provides littlely is with built-in little band mixer, belongs to the built-in little band mixer that is built in the TD smart antenna, can realize the synthetic of FA and D frequency band signals.In the TD-SCDMA frequency range, Insertion Loss is less than 0.4dB, VSWR＜1.2; In the TD-LTE frequency range, Insertion Loss is less than 0.7dB, VSWR＜1.25.
In the utility model; The TD smart antenna is based on the built-in little band mixer that is built in antenna; This mixer low frequency divides road port 201 on electrical property, to present low-frequency filter characteristics; High frequency port one 01 along separate routes presents the high-pass filtering characteristic on electrical property, close road port 301 and on electrical property, present the bandreject filtering characteristic.The built-in little band mixer that in actual use 8 the utility model is provided is arranged side by side, and each low-and high-frequency branch terminal is connected to the straight-through end of low-and high-frequency calibration network respectively accordingly, and each closes terminal and is connected to feeding network accordingly.Shared cover broadband feeding network of low-and high-frequency and broadband oscillator.Can realize independent high and low frequency passage like this, TD-SCDMA and TD-LTE system just can calibrate same secondary smart antenna separately, and don't the mutual interference of meeting phase, have improved the calibration accuracy of smart antenna, are beneficial to the good covering of cellular cell again.Can bring into play the advantage of smart antenna better.
The utility model is set to comprise high frequency shunt and low frequency along separate routes through the HF link plate of built-in little band mixer; And be connected in high frequency and along separate routes close the road with low frequency low-and high-frequency along separate routes, make the smart antenna of the said built-in little band mixer of employing can receive and dispatch the signal of TD-SCDMA and TD-LTE network simultaneously; Guaranteed that TD-SCDMA and TD-LTE dual system can shared same secondary smart antennas; The installing space and the production cost of smart antenna have been saved; And be prone to processing and be prone to assembling; Alleviated the weight of smart antenna simultaneously.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (9)
1. built-in little band mixer; It is characterized in that, comprising: at least one HF link plate, the one side at least of said HF link plate goes up etching has microstripline; Said microstripline comprise high frequency along separate routes with low frequency along separate routes, and connect said high frequency along separate routes and the low-and high-frequency of low frequency shunt close the road.
2. built-in little band mixer according to claim 1 is characterized in that said high frequency comprises along separate routes:
High frequency divides road port,
High frequency is main line along separate routes, and an end of said high frequency shunt main line is connected in said high frequency and divides road port, and the other end is connected in and closes route;
Many high frequency open-circuit lines, said many high frequency open-circuit lines are connected on the said high frequency shunt main line;
Said low frequency comprises along separate routes:
Low frequency divides road port,
Low frequency is main line along separate routes, and an end of said low frequency shunt main line is connected in said low frequency and divides road port, and the other end is connected in and closes route;
Many low frequency open-circuit lines, said many low frequency open-circuit lines are connected on the said low frequency shunt main line;
Said low-and high-frequency is closed the road and is comprised:
Close road port,
The zygonema road, said zygonema Lu Yiduan is connected in the said road port that closes, and the other end is connected in said high frequency main line and low frequency shunt main line along separate routes.
3. built-in little band mixer according to claim 2; It is characterized in that; Said high frequency divides road port, low frequency to divide road port and closes road port and corresponds respectively to a breach, and each said breach and said high frequency divide road port, low frequency to divide road port and the microstripline that closes road port keeps at a certain distance away.
4. built-in little band mixer according to claim 2; It is characterized in that; Said many high frequency open-circuit lines are four high frequency open-circuit lines, and said four high frequency open-circuit lines are connected on the said high frequency shunt main line, wherein successively; Article one, the width of high frequency open-circuit line and the 4th high frequency open-circuit line does not wait equal in length; The width of second high frequency open-circuit line and the 3rd high frequency open-circuit line does not wait equal in length;
Said many low frequency open-circuit lines are four low frequency open-circuit lines, and said four low frequency open-circuit lines are connected on the said low frequency shunt main line successively, and wherein, the width of article one low frequency open-circuit line and the 4th low frequency open-circuit line does not wait equal in length; The width of second low frequency open-circuit line and the 3rd low frequency open-circuit line does not wait equal in length.
5. built-in little band mixer according to claim 1 is characterized in that said HF link plate is a double-sided copper-clad HF link plate.
6. built-in little band mixer according to claim 1 is characterized in that said high frequency is TD-LTE network signal transmission line along separate routes;
Said low frequency is TD-SCDMA network signal transmission line along separate routes.
7. TD smart antenna that comprises any described built-in little band mixer of claim 1～6.
8. TD smart antenna according to claim 7 is characterized in that, comprises that 8 are arranged said built-in little band mixer of putting side by side.
9. TD smart antenna according to claim 7 is characterized in that, said high frequency divides road port to be connected in the straight-through end of said high frequency calibration network; Said low frequency divides road port to be connected in the straight-through end of said low-frequency calibration network; The said road port that closes is connected to feeding network accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120372525XU CN202268462U (en) | 2011-09-30 | 2011-09-30 | TD smart antenna and built-in micro-strip combiner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120372525XU CN202268462U (en) | 2011-09-30 | 2011-09-30 | TD smart antenna and built-in micro-strip combiner thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268462U true CN202268462U (en) | 2012-06-06 |
Family
ID=46159246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120372525XU Expired - Fee Related CN202268462U (en) | 2011-09-30 | 2011-09-30 | TD smart antenna and built-in micro-strip combiner thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268462U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700943A (en) * | 2013-12-13 | 2014-04-02 | 武汉虹信通信技术有限责任公司 | Device for supporting multi-band frequency beamforming |
| CN103746755A (en) * | 2013-12-27 | 2014-04-23 | 摩比天线技术（深圳）有限公司 | Calibration network of TD intelligent antenna |
| CN106229595A (en) * | 2016-08-30 | 2016-12-14 | 广东通宇通讯股份有限公司 | Power splitter and assembly thereof |
| CN110323577A (en) * | 2018-03-29 | 2019-10-11 | 江苏吴通物联科技有限公司 | A kind of double outlet high-gain omni-directional antennas of small sized double frequency |
| CN112002977A (en) * | 2020-08-22 | 2020-11-27 | 佛山市粤海信通讯有限公司 | Microstrip combiner |
-
2011
- 2011-09-30 CN CN201120372525XU patent/CN202268462U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700943A (en) * | 2013-12-13 | 2014-04-02 | 武汉虹信通信技术有限责任公司 | Device for supporting multi-band frequency beamforming |
| CN103700943B (en) * | 2013-12-13 | 2016-04-27 | 武汉虹信通信技术有限责任公司 | A kind of device supporting multiband beam shaping |
| CN103746755A (en) * | 2013-12-27 | 2014-04-23 | 摩比天线技术（深圳）有限公司 | Calibration network of TD intelligent antenna |
| CN103746755B (en) * | 2013-12-27 | 2016-08-17 | 摩比天线技术（深圳）有限公司 | The calibration network of TD smart antenna |
| CN106229595A (en) * | 2016-08-30 | 2016-12-14 | 广东通宇通讯股份有限公司 | Power splitter and assembly thereof |
| CN110323577A (en) * | 2018-03-29 | 2019-10-11 | 江苏吴通物联科技有限公司 | A kind of double outlet high-gain omni-directional antennas of small sized double frequency |
| CN112002977A (en) * | 2020-08-22 | 2020-11-27 | 佛山市粤海信通讯有限公司 | Microstrip combiner |
| CN112002977B (en) * | 2020-08-22 | 2021-11-16 | 佛山市粤海信通讯有限公司 | Microstrip combiner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102110900B (en) | Array antenna of mobile terminal and implementation method of array antenna | |
| CN103141031B (en) | Impedance converting circuit and communication terminal apparatus | |
| CN202268462U (en) | TD smart antenna and built-in micro-strip combiner thereof | |
| CN103858277A (en) | Tri-polarization Antenna | |
| CN104157969B (en) | Broadband MIMO dual-antenna based on adjusting impedance matching technology | |
| CN106450752A (en) | MIMO antenna for reaching high isolation for smart mobile phones | |
| CN107425272A (en) | Filter antenna array | |
| CN106450706A (en) | Broadband dual-polarized magnetoelectric dipole base station antenna | |
| CN102117966B (en) | Printed antenna | |
| CN203690467U (en) | Micro-strip power divider of integrated design | |
| CN103560325A (en) | Broadband Quari-Yagi antenna applied to multi-band frequency wireless communication system | |
| CN105428807A (en) | Multi-mode slot antenna and mobile terminal | |
| CN210350085U (en) | Polarization diversity high-isolation broadband 5G antenna | |
| CN204167453U (en) | The mobile 4G mixer that a kind of China Mobile is special | |
| CN107069219A (en) | A kind of whole metal case 4G wide frequency antennas | |
| CN203760661U (en) | Anti-interference intelligent antenna | |
| CN204271259U (en) | Multiband radiating element and mobile communication antenna | |
| CN103531920A (en) | Four-antenna system for mobile phone working at 2300-2400 frequency band | |
| CN101662062A (en) | Dual-band unequal power distributor containing selectable isolating structure | |
| CN203521611U (en) | Coupled feeding multi-frequency antenna | |
| CN110829023B (en) | Antenna module and terminal | |
| CN104733831A (en) | WLAN (wireless local area network) antenna and manufacturing method thereof applied to mobile terminal | |
| CN205211934U (en) | A three passband MIMO antennas for WLAN and WIMAX | |
| CN207217770U (en) | Filter antenna array | |
| CN206422235U (en) | A kind of low section full system type pictorial antenna system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20120614 Contract record no.: 2012990000365 Assignee after: MOBI Technologies (Xi'an) Co., Ltd. Assignee before: Mobile technology (Xi'an) Co. Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: MOBI Technologies (Xi'an) Co., Ltd. Assignor: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Contract record no.: 2012990000365 Denomination of utility model: TD smart antenna and built-in micro-strip combiner thereof Granted publication date: 20120606 License type: Exclusive License Record date: 20120530 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20160930 |