CN102386486B - Built-in loop antenna of mobile phone with reconfigurable short circuit point - Google Patents
Built-in loop antenna of mobile phone with reconfigurable short circuit point Download PDFInfo
- Publication number
- CN102386486B CN102386486B CN2011102745138A CN201110274513A CN102386486B CN 102386486 B CN102386486 B CN 102386486B CN 2011102745138 A CN2011102745138 A CN 2011102745138A CN 201110274513 A CN201110274513 A CN 201110274513A CN 102386486 B CN102386486 B CN 102386486B
- Authority
- CN
- China
- Prior art keywords
- short circuit
- minor matters
- frequency
- pin diode
- antenna
- 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
Images
Abstract
The invention relates to a built-in loop antenna of a mobile phone with reconfigurable short circuit point, which belongs to the field of antenna design. The built-in loop antenna comprises a metal conductor part, a first PIN (Positive Intrinsic Negative) diode, and a second PIN diode; the metal conductor part includes a folded loop antenna body, a frequency adjusting metal sheet, a feed branch, a first short circuit branch and a second short circuit branch; the two short circuit branches are grounded through corresponding PIN diodes, so that when the PIN diodes are conducted, the short circuit branches are connected with the ground, and when the PIN diodes are disconnected, the short circuit branches are not connected with the ground; the antenna works in two modes of different frequencies when the two short circuit branches are grounded respectively; and in combination with the two different working modes, the antenna can cover multiple frequency bands. The built-in loop antenna has the advantages of miniaturization, broadband, multiple frequency bands and easy integration, and is suitable for design of the built-in antennas of various small mobile terminals such as mobile phones.
Description
Technical field
The invention belongs to the Antenna Design field of wireless communication technology, relate to the reconfigurable embedded in mobile phone loop antenna of a kind of short dot.
Background technology
Along with the develop rapidly of wireless communication technology, the function of mobile phone is progressively expanded, from before single speech business develop into current numeral, multimedia service.Integrated multiple business is one of important trend of current phone development on same mobile phone.Because the frequency band range of various wireless communication vocational work is not quite similar, such as global system for mobile communications (GSM850:824-894MHz, GSM900:880-960MHz), global positioning system (GPS:1575MHz), Digital Cellular System (DCS:1710-1880MHz), PCS Personal Communications System (PCS:1850-1990MHz), universal mobile telecommunications system (UMTS:1920-2170MHz) and bluetooth (Bluetooth:2.4GHz) etc.Need on existing antenna for mobile phone, realize that more frequency band meets the multiple business demand.Therefore, multiband antenna becomes the main target of mobile terminal antenna design.
Antenna sends, accepts electromagnetic device as mobile phone, and its performance has directly determined the performance of whole cell phone system.The enough spaces of the performance need of antenna guarantee.In the design of antenna for mobile phone, usually adopt the structure of multiple-limb, corresponding one or more frequency band of each branch.The increase of branch will inevitably increase the size of antenna, and original space can't guarantee the normal operation of antenna.Simultaneously, miniaturization is the trend of modern Cell Phone Design, and mobile phone lightweight, thin thickness has the very strong market competitiveness.Therefore, the demand of miniaturization has further increased the design difficulty of multiband antenna for mobile phone.
The reconfigurable antenna technology is one of effective technology solved in space.Its basic thought is the concept of utilizing antenna structure multiplexing, on the basis of original antenna work, utilizes the structure of the element change antennas such as switch, forms another mode of operation, combines original mode of operation, realizes the covering of a plurality of frequency bands.The more important thing is, the volume of antenna does not increase.The element of introducing can be introduced the loss of some antenna performances, is equivalent to the number of frequency bands that partial loss of energy exchanges antenna for.Evidence is that in the mobile terminal of representative, to adopt Reconfiguration Technologies be feasible at mobile phone.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide the reconfigurable embedded in mobile phone loop antenna of a kind of short dot, by changing the position of antenna body short dot, realize two kinds of mode of operations, under the prerequisite that does not increase the antenna system space, realize the covering of multiple business frequency band, met simultaneously the trend of current antenna miniaturization, had the characteristics of miniaturization, broadband, multiband.
To achieve these goals, the technical solution used in the present invention is:
The reconfigurable embedded in mobile phone loop antenna of short dot, contain metal conductor portion, the first PIN diode 6 and the second PIN diode 7, described metal conductor portion comprises antenna body 1, feed minor matters 2, the first short circuit minor matters 3, the second short circuit minor matters 4 and frequency modulation sheet metal 5, wherein:
Feed minor matters 2 are connected with described antenna body 1, with the distributing point of cell phone mainboard, are connected, as signal input part;
The first short circuit minor matters 3, one ends are connected with described antenna body 1, and the other end is connected with the ground of cell phone mainboard by described the first PIN diode 6;
The second short circuit minor matters 4, one ends are connected with described antenna body 1, and the other end is connected with the ground of cell phone mainboard by described the second PIN diode 7;
Frequency modulation sheet metal 5, be connected with described antenna body 1, be used to regulating the frequency of two kinds of mode of operations of antenna;
The first PIN diode 6, the ground that connects described the first short circuit minor matters 3 and described cell phone mainboard, during described the first PIN diode 6 conducting, described the first short circuit minor matters 3 are connected with the ground of described cell phone mainboard, when described the first PIN diode 6 disconnected, described the first short circuit minor matters 3 disconnected with the ground of described cell phone mainboard.
The second PIN diode 7, the ground that connects described the second short circuit minor matters 4 and described cell phone mainboard, during described the second PIN diode 7 conducting, described the second short circuit minor matters 4 are connected with the ground of described cell phone mainboard, when described the second PIN diode 7 disconnected, described the second short circuit minor matters 4 disconnected with the ground of described cell phone mainboard.
Two kinds of mode of operations of wherein said antenna body 1 refer to:
When described the first PIN diode 6 conductings, described the second PIN diode 7 disconnects while leading to, and described antenna body 1 works in the ring first mode;
When described the first PIN diode 6 disconnects, during described the second PIN diode 7 disconnected conducting, described antenna body 1 works in ring the second pattern;
Amount to and produce two kinds of mode of operations.。
Wherein, the planar structure of described antenna body 1 is the I-shaped loop aerial, and frequency modulation sheet metal 5 is connected in the first horizontal edge 1a outside of described I-shaped loop aerial, feed minor matters 2, the first short circuit minor matters 3 and the second short circuit minor matters 4 all are connected in the 4th horizontal edge 1d outside of described I-shaped loop aerial, and the position of the first short circuit minor matters 3 is between feed minor matters 2 and the second short circuit minor matters 4, the first track 8 refers to the outer side edges of the first horizontal edge 1a, the inner side edge of second track 9 finger the second horizontal edge 1b, the inner side edge of the 3rd track 10 fingers the 3rd horizontal edge 1c, after folding, the first horizontal edge 1a and the second plane, horizontal edge 1b place, relative with the 4th horizontal edge 1d place plane parallel with the 3rd horizontal edge 1c, and all vertical with the vertical edge 1e of I-shaped loop aerial, frequency modulation sheet metal 5 planes, place are parallel with vertical edge 1e, frequency modulation sheet metal 5 contacts with the 4th horizontal edge 1d.
The digital integrated circuit chip that the on off operating mode of described the first PIN diode 6 and the second PIN diode 7 is controlled use by a kind of switch is controlled, for example PIC18LF2525.
The present invention has advantages of miniaturization, broadband, multiband and is easy to integratedly, is applicable to the various small mobile terminals built-in aerials designs with mobile phone representative.
The accompanying drawing explanation
Fig. 1 is embedded in mobile phone loop antenna plane graph provided by the invention.
Fig. 2 is the graphics of antenna after folding in Fig. 1.
Fig. 3 is the embodiment dimensional drawing after the antenna installation in Fig. 1, and unit is millimeter (mm).
Fig. 4 is the embodiment end view after the antenna installation in Fig. 1, and unit is millimeter (mm).
Fig. 5 is the measurement of reflection-factor figure that in Fig. 1, antenna is installed rear embodiment:
First mode;
The second pattern.
Fig. 6 is the efficiency measurement figure that in Fig. 1, antenna is installed rear embodiment:
First mode;
The second pattern.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details.
As shown in Figure 1, plane graph for the reconfigurable embedded in mobile phone loop antenna of short dot of the present invention, the first PIN diode 6 and the second PIN diode 7, described metal conductor portion comprises antenna body 1, feed minor matters 2, the first short circuit minor matters 3, the second short circuit minor matters 4 and frequency modulation sheet metal 5, the planar structure of antenna body 1 is the I-shaped loop aerial, and frequency modulation sheet metal 5 is connected in the first horizontal edge 1 a outside of described I-shaped loop aerial; Feed minor matters 2, the first short circuit minor matters 3 and the second short circuit minor matters 4 all are connected in the 4th horizontal edge 1d outside of described I-shaped loop aerial, and the position of the first short circuit minor matters 3 is between feed minor matters 2 and the second short circuit minor matters 4.
As shown in Figure 2, for antenna body in Fig. 11, adopt the form of folding (or crooked) loop antenna, according to planar structure along the first track 8, it is folding that the second track 9 and the 3rd track 10 carry out inside an angle of 90 degrees, form a cuboid, inner by foam or plastic support, final application form for described antenna system, the first track 8 refers to the outer side edges of the first horizontal edge 1a, the inner side edge of second track 9 finger the second horizontal edge 1b, the inner side edge of the 3rd track 10 fingers the 3rd horizontal edge 1c, after folding, the first horizontal edge 1a and the second plane, horizontal edge 1b place, relative with the 4th horizontal edge 1d place plane parallel with the 3rd horizontal edge 1c, and all vertical with the vertical edge 1e of I-shaped loop aerial, frequency modulation sheet metal 5 planes, place are parallel with vertical edge 1e, frequency modulation sheet metal 5 contacts with the 4th horizontal edge 1d.
As shown in Figure 3 and Figure 4, be the enforcement illustration after antenna installation in Fig. 1, cell phone mainboard 11 adopts the thick medium substrate of 1mm, and relative dielectric constant is 4.4.Cell phone mainboard 11 back sides are metal ground, and material is copper.Antenna system is installed on the front of cell phone mainboard 11.The first PIN diode 6 one ends are connected with short circuit minor matters 3, and an end is connected with metal ground by through hole; The second PIN diode 7 one ends are connected with short circuit minor matters 4, and an end is connected with metal ground by through hole.The biasing circuit of the first PIN diode 6 and the second PIN diode 7 is printed in the front of cell phone mainboard 11.Biasing circuit comprises distributing point 12, the first capacitance C
B1, the second capacitance C
B2, the 3rd capacitance C
B3, the first choke induction L
B1, the second choke induction L
B2, the first biasing resistor R
B1, the second biasing resistor R
B2, the ac short circuit inductance L
s, first bias voltage input the 13 and first bias voltage input 14.Feed minor matters 2 and the 3rd capacitance C
B3Be connected.Distributing point 12 is by 50 ohm of designs of characteristic impedance, and the first bias voltage input 13 is connected with digital integrated circuit chip with the second bias voltage input 14, PIC18LF2525 for example, the on off operating mode of control the first PIN diode 6 and the second PIN diode 7.
Technical scheme of the present invention is achieved in that working as the first PIN diode 6 is conducting state, and the second PIN diode 7 is off-state, and the first short circuit minor matters 3 are connected with metal ground, and the second short circuit minor matters 4 disconnect with metal ground, and antenna body 1 works in first mode.When the first PIN diode 6 is off-state, the second PIN diode 7 is conducting state, the first short circuit minor matters 3 disconnect with metal ground, the second short circuit minor matters 4 are connected with metal ground, antenna body 1 works in the second pattern, due to the length of main body antenna 1 shown in the second pattern, be less than the length of the antenna of main body shown in first mode 1, the resonance frequency of the second pattern is higher than the resonance frequency of first mode.Under first mode and the second pattern, antenna body 1 works in the loop antenna pattern, and the loop antenna pattern comprises three resonance frequencys: first frequency, second frequency and the 3rd frequency.Wherein second frequency and the 3rd frequency are about 2 times and 3 times of first frequency, change first frequency by the length of regulating antenna body 1.Frequency modulation sheet metal 5 can change first frequency and the 3rd frequency, keeps second frequency constant, by regulating the size of frequency modulation sheet metal 5, second frequency and the 3rd frequency tune can be covered to high band together, covers low-frequency range with first frequency.The resonance frequency of comprehensive two kinds of patterns, can realize the covering of a plurality of frequency bands.
The structure of this inventive embodiment is described as follows:
The concrete size of implementing is by Fig. 3 and shown in Figure 4; Finally according to the described biasing circuit of bias voltage design of described the first PIN diode 6 and the second PIN diode 7 conductings needs, the described biasing circuit component value that is applicable to the invention process example size is: L
B1=120 nanohenrys, L
B2=120 nanohenrys, L
s=100 nanohenrys, C
B1=120 pico farads, C
B2=120 pico farads, C
B3=120 pico farads, R
B1=46 ohm, R
B2=46 ohm.As shown in Figure 5, wherein said first mode-6dB bandwidth is 770-885MHz, 1520-1660MHz and 2260-2560MHz to the reflection coefficient test result of the antenna made from Fig. 3, size shown in Figure 4, covers GSM850, GPS and bluetooth frequency range; Described the second pattern-6dB bandwidth is 875-1010MHz and 1705-2410MHz, covers GSM900, DCS and PCS frequency range.The antenna efficiency test result made from Fig. 3, size shown in Figure 4 as shown in Figure 6, for GSM frequency range efficiency higher than 53.6%, for GPS, DCS, PCS and UMTS frequency range efficiency higher than 26.4%, for bluetooth frequency range efficiency higher than 46.4%.Described antenna system can be at 60 * 5 * 5mm
3Space in realize the covering of 7 frequency ranges.
Claims (6)
1. the reconfigurable embedded in mobile phone loop antenna of short dot, it is characterized in that, contain metal conductor portion, the first PIN diode (6) and the second PIN diode (7), described metal conductor portion is comprised of antenna body (1), feed minor matters (2), the first short circuit minor matters (3), the second short circuit minor matters (4) and frequency modulation sheet metal (5), wherein:
Antenna body (1) adopts the form of puckered ring antenna, according to planar structure, carry out inside an angle of 90 degrees along the first track (8), the second track (9) and the 3rd track (10) and fold, realize two kinds of mode of operations by the ground state that changes described the first short circuit minor matters (3) and described the second short circuit minor matters (4);
Feed minor matters (2) are connected with described antenna body (1), with the distributing point of cell phone mainboard, are connected, as signal input part;
The first short circuit minor matters (3), an end is connected with described antenna body (1), and the other end is connected with the ground of cell phone mainboard by described the first PIN diode (6);
The second short circuit minor matters (4), an end is connected with described antenna body (1), and the other end is connected with the ground of cell phone mainboard by described the second PIN diode (7);
Frequency modulation sheet metal (5), be connected with described antenna body (1), be used to regulating the frequency of two kinds of mode of operations of antenna;
The first PIN diode (6), the ground that connects described the first short circuit minor matters (3) and described cell phone mainboard, during described the first PIN diode (6) conducting, described the first short circuit minor matters (3) are connected with the ground of described cell phone mainboard, when described the first PIN diode (6) disconnected, described the first short circuit minor matters (3) disconnected with the ground of described cell phone mainboard;
The second PIN diode (7), the ground that connects described the second short circuit minor matters (4) and described cell phone mainboard, during described the second PIN diode (7) conducting, described the second short circuit minor matters (4) are connected with the ground of described cell phone mainboard, when described the second PIN diode (7) disconnected, described the second short circuit minor matters (4) disconnected with the ground of described cell phone mainboard;
Two kinds of mode of operations of wherein said antenna body (1) refer to:
When described the first PIN diode (6) conducting, when described the second PIN diode (7) disconnected, described antenna body (1) worked in the ring first mode;
When described the first PIN diode (6) disconnects, during described the second PIN diode (7) conducting, described antenna body (1) works in ring the second pattern;
Amount to and produce two kinds of mode of operations;
Under above-mentioned two kinds of patterns, antenna body (1) works in the loop antenna pattern, the loop antenna pattern comprises three resonance frequencys: first frequency, second frequency and the 3rd frequency, wherein second frequency and the 3rd frequency are about 2 times and 3 times of first frequency, frequency modulation sheet metal (5) can change first frequency and the 3rd frequency, keep second frequency constant, by regulating the size of frequency modulation sheet metal (5), realization covers high band by second frequency and the 3rd frequency tune together, and covers low-frequency range with first frequency.
2. the reconfigurable embedded in mobile phone loop antenna of short dot according to claim 1, it is characterized in that, the planar structure of described antenna body (1) is the I-shaped loop aerial, and frequency modulation sheet metal (5) is connected in the first horizontal edge (1a) outside of described I-shaped loop aerial; Feed minor matters (2), the first short circuit minor matters (3) and the second short circuit minor matters (4) all are connected in the 4th horizontal edge (1d) outside of described I-shaped loop aerial, and the position of the first short circuit minor matters (3) is positioned between feed minor matters (2) and the second short circuit minor matters (4).
3. the reconfigurable embedded in mobile phone loop antenna of short dot according to claim 2, it is characterized in that, the first track (8) refers to the outer side edges of the first horizontal edge (1a), the second track (9) refers to the inner side edge of the second horizontal edge (1b), the 3rd track (10) refers to the inner side edge of the 3rd horizontal edge (1c), after folding, the first horizontal edge (1a) and the second horizontal edge (1b) plane, place, relative with the 4th horizontal edge (1d) place plane parallel with the 3rd horizontal edge (1c), and all vertical with the vertical edge (1e) of I-shaped loop aerial, frequency modulation sheet metal (5) plane, place is parallel with vertical edge (1e).
4. the reconfigurable embedded in mobile phone loop antenna of short dot according to claim 3, is characterized in that, frequency modulation sheet metal (5) contacts with the 4th horizontal edge (1d).
5. the reconfigurable embedded in mobile phone loop antenna of short dot according to claim 1, is characterized in that, the digital integrated circuit chip that the on off operating mode of described the first PIN diode (6) and the second PIN diode (7) is controlled use by a kind of switch is controlled.
6. the reconfigurable embedded in mobile phone loop antenna of short dot according to claim 5, is characterized in that, described digital integrated circuit chip is PIC18LF2525.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102745138A CN102386486B (en) | 2011-09-15 | 2011-09-15 | Built-in loop antenna of mobile phone with reconfigurable short circuit point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102745138A CN102386486B (en) | 2011-09-15 | 2011-09-15 | Built-in loop antenna of mobile phone with reconfigurable short circuit point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386486A CN102386486A (en) | 2012-03-21 |
| CN102386486B true CN102386486B (en) | 2013-11-27 |
Family
ID=45825623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102745138A Expired - Fee Related CN102386486B (en) | 2011-09-15 | 2011-09-15 | Built-in loop antenna of mobile phone with reconfigurable short circuit point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102386486B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8842047B2 (en) * | 2012-11-29 | 2014-09-23 | Htc Corporation | Portable communication device and adjustable antenna thereof |
| CN103390795B (en) * | 2013-07-22 | 2015-08-19 | 电子科技大学 | A kind of directional diagram has the antenna of multiple restructural characteristic |
| CN105490714B (en) * | 2014-09-16 | 2018-10-26 | 南京中兴新软件有限责任公司 | The multicarrier sending and receiving method of terminal, terminal |
| US20160149317A1 (en) * | 2015-12-28 | 2016-05-26 | Mediatek Inc. | Communication Apparatus With Improved Radiated Spurious Emission And Loss |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997166A (en) * | 2010-10-27 | 2011-03-30 | 惠州Tcl移动通信有限公司 | Annular multiband antenna and wireless communication device thereof |
| CN201838712U (en) * | 2010-07-27 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Frequency-adjustable circulation antenna structure |
| CN201838714U (en) * | 2010-10-27 | 2011-05-18 | 惠州Tcl移动通信有限公司 | Enclosed type multi-band antenna and wireless communication device of same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010239246A (en) * | 2009-03-30 | 2010-10-21 | Fujitsu Ltd | Antenna having tunable operation frequency with monopole and loop combined with each other |
-
2011
- 2011-09-15 CN CN2011102745138A patent/CN102386486B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201838712U (en) * | 2010-07-27 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Frequency-adjustable circulation antenna structure |
| CN101997166A (en) * | 2010-10-27 | 2011-03-30 | 惠州Tcl移动通信有限公司 | Annular multiband antenna and wireless communication device thereof |
| CN201838714U (en) * | 2010-10-27 | 2011-05-18 | 惠州Tcl移动通信有限公司 | Enclosed type multi-band antenna and wireless communication device of same |
Non-Patent Citations (2)
| Title |
|---|
| C.W.Chu等.Multiband folded loop antenna forsmart phones.《Progress In Electronmagnetics Reserach》.2010,第213-226页. |
| Multiband folded loop antenna forsmart phones;C.W.Chu等;《Progress In Electronmagnetics Reserach》;20101231;第213-226页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386486A (en) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103117452B (en) | A kind of novel LTE terminal antenna | |
| CN102386485B (en) | Loop and inverted-F-shaped reconfigurable cell phone built-in antenna | |
| EP2092598B1 (en) | Internal multi-band antenna | |
| US8193998B2 (en) | Antenna contacting assembly | |
| US7629931B2 (en) | Antenna having a plurality of resonant frequencies | |
| CN101238612B (en) | Multi-band antenna device for radio communication terminal and radio communication terminal comprising the multi-band antenna device | |
| CN103151601B (en) | A kind of bottom edge slot coupled antenna | |
| US20080252536A1 (en) | Antenna Set, Portable Wireless Device, and Use of a Conductive Element for Tuning the Ground-Plane of the Antenna Set | |
| EP2448062A2 (en) | Communication device and antenna thereof | |
| US20100052997A1 (en) | Antenna modules and portable electronic devices using the same | |
| EP2381529B1 (en) | Communications structures including antennas with separate antenna branches coupled to feed and ground conductors | |
| EP2615683A1 (en) | Communication device and antenna structure therein | |
| EP1738434A1 (en) | Multi-band compact pifa antenna with meandered slot(s) | |
| WO2011161550A2 (en) | Distributed multiband antenna and methods | |
| CN101258641A (en) | Internal multi-band antenna with planar strip elements | |
| EP2842196B1 (en) | Wireless communication device with a multiband antenna, and methods of making and using thereof | |
| TWI633704B (en) | Antenna for wireless device | |
| EP2541678A1 (en) | Mobile communication antenna device and mobile communication terminal device | |
| EP2019448A1 (en) | Antenna device | |
| CN103346393B (en) | A kind of multi-frequency plane printed antenna containing protrusion floor being applied to mobile terminal | |
| US7391375B1 (en) | Multi-band antenna | |
| EP2600466A1 (en) | Low profile multi-band antennas and related wireless communications devices | |
| CN102386486B (en) | Built-in loop antenna of mobile phone with reconfigurable short circuit point | |
| CN100576631C (en) | Inverted F shaped antenna | |
| CN101505000A (en) | Multi-frequency band antenna and wireless communication terminal using the same |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20170915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |