CN203674373U - All-metal mobile terminal multi-slot antenna - Google Patents
All-metal mobile terminal multi-slot antenna Download PDFInfo
- Publication number
- CN203674373U CN203674373U CN201320857667.4U CN201320857667U CN203674373U CN 203674373 U CN203674373 U CN 203674373U CN 201320857667 U CN201320857667 U CN 201320857667U CN 203674373 U CN203674373 U CN 203674373U
- Authority
- CN
- China
- Prior art keywords
- radiant section
- gap
- radiation
- mobile terminal
- radiation fin
- 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
Landscapes
- Support Of Aerials (AREA)
- Telephone Set Structure (AREA)
Abstract
The utility model provides an all-metal mobile terminal multi-slot antenna comprising a conductive housing, a hollow first radiation portion with openings on the two ends thereof, and a sheet-shaped radiation sheet. The first radiation portion is provided with a second slot. The radiation sheet is provided with a fourth slot opposite to and coupled to the second slot. One end of the first radiation portion and one end of the housing are opposite and form a first slot. The other end of the first radiation portion and the radiation sheet are opposite and form a third slot. Insulating mediums are filled in the first slot and the third slot. The radiation sheet is connected with a feed portion, connected with the first radiation portion through a radiation connection portion, and connected with the housing through a second radiation portion. Integrally-formed design of the housing and an antenna portion is achieved in the utility model. The all-metal mobile terminal multi-slot antenna employs polyhedral structural appearance and has an attractive characteristic. A matching circuit is introduced such that the change of the low-frequency resonant frequency of the antenna is achieved by adjusting the values of different elements in the matching circuit. Therefore, multi-band communication is satisfied and the antenna is easily adjusted and designed.
Description
Technical field
The utility model relates to Antenna Design technical field, relates in particular to a kind of all-metal mobile terminal multi-slot antenna.
Background technology
Miniaturized multiband built-in aerial is the developing direction of hand-held communication terminal antenna always.Existing antenna form comprises multi-frequency monopole sub antenna (monopole antenna), monocycle or double loop antenna (single loop and dual loop antenna), is inverted folded antenna (IFA), planar inverted folded antenna (PIFA).These antenna type respectively has condition and the performance of its use in different hand-held communication terminal environment.Can select different antenna forms according to different requirements.
Conventionally mobile terminal device comprises GSM850/900, DCS, PCS, UMTS, and its frequency range is 0.824GHz-0.96GHz, 1.71GHz-2.17GHz.Along with the development of LTE technology, 700MHz, 3.5GHz, 4GHz frequency range receive much concern.More and more many mobile phones need antenna to meet traditional 2G network frequency range and LTE frequency range simultaneously, and the development of the mobile terminals such as mobile phone is more and more diversified.
In prior art, have and much realize the method for designing of metal as an antenna part, for example, in the patent that the patent No. is EP1858112B1, adopt the form of slot antenna, the part using metallic plate (Printed wired board PWB) as antenna.The patent No. is in the patent of US2012206302A1, adopt loop antenna that handset mode (chassis) is coupled to antenna, a day wire spoke beam is placed in the above and below of metal shell or left and right side, and also disclosing a kind of embodiment is that metal shell one end is low-frequency antenna, other end high frequency antenna, implements double-fed structure (Dual feed); If only use a feed, double-fed structure needs duplexer (diplexer) to realize, this antenna structure needs Supporting Media (substrate), antenna cover medium (dielectric antenna cover) to facilitate the fluting of feed simultaneously, low-and high-frequency, for two antennas independently take larger space, also needs to consider isolating problem simultaneously.
Utility model content
For solving the problem of metal shell individual antenna wideband, adapt to better large-screen mobile phone, be other antenna headspace simultaneously.The utility model provides a kind of all-metal mobile terminal multi-slot antenna, has multi-plane shape structure, metal shell and antenna can be fully-integrated, technical performance is better, method is simpler.
The utility model is a kind of all-metal mobile terminal multi-slot antenna, is arranged on mobile terminal for transmitting and receiving wireless signal, and described all-metal mobile terminal multi-slot antenna comprises housing and the antenna part with electric conductivity; Wherein, described antenna part comprises:
The first radiant section, is the hollow form of both ends open, and formation relative to the openend of described housing the first gap, one end of described the first radiant section, is provided with the second gap on described the first radiant section;
Radiation fin, in the form of sheets and with the relative formation of the other end the 3rd gap of described the first radiant section, on described radiation fin, be provided with Fpir Crevices gap, described the second gap is relative with described Fpir Crevices gap and produce coupling;
Radiation coupling part, described radiation fin is connected with described the first radiant section by radiation coupling part;
Feed part, receives feed signal and is connected with described radiation fin;
Grounded part, described radiation fin is connected with described housing by described grounded part, and described radiation coupling part is between described feed part and described grounded part.
In some embodiment, described the second gap cuts off described the first radiant section, described Fpir Crevices gap is cut off described radiation fin be divided into the first radiation fin and the second radiation fin, and described the second gap and described Fpir Crevices gap are positioned on the same cross section of described antenna part.
In some embodiment, described radiation coupling part comprises the first radiation coupling part and the second radiation coupling part, described the first radiation fin is connected with described the first radiant section by described the first radiation coupling part, and described the second radiation fin is connected with described the first radiant section by described the second radiation coupling part.
In some embodiment, in described the first gap and described the 3rd gap, be filled with dielectric, described dielectric employing Shooting Technique and described housing, described the first radiant section and described radiation fin are one-body molded.
In some embodiment, antenna part also comprises the second radiant section, and described feed part is connected with described radiation fin by described the second radiant section.
In some embodiment, also comprise match circuit, described match circuit is arranged at the junction of described feed part and described the second radiant section.
In some embodiment, described match circuit comprises:
Inductance component, described inductance component one end is divided and is connected with described current feed department, and the other end of described inductance component is connected with described the second radiant section;
Capacitor element, one end ground connection, the other end of described capacitor element is connected to the junction of described inductance component and described the second radiant section.
In some embodiment, described the first radiant section inside is provided with the moving-member such as USB, loud speaker.
In some embodiment, the distance between described housing and described the first radiant section is 1-2mm.
In some embodiment, the distance between described the first radiant section and described radiation fin is 0.5-0.8mm.
The utility model, owing to adopting above technical scheme, makes it compared with prior art:
1) the utility model has been realized the one-body molded design of conductive shell and antenna part, and adopts polyhedral structure outward appearance, has attractive in appearance, practical feature.
2) the utility model is introduced match circuit, has realized the variation of antenna low-frequency resonant frequency by different elements value in adjusting match circuit, can meet multiband communication, more easily adjusted design antenna.
Accompanying drawing explanation
By reference to the accompanying drawings, by the detailed description of stating below, can more clearly understand above-mentioned and other feature and advantage of the present utility model, wherein:
Fig. 1 is the utility model embodiment front view;
Fig. 2 is the utility model embodiment schematic three dimensional views one;
Fig. 3 is the utility model embodiment schematic three dimensional views two;
Fig. 4 is the utility model embodiment antenna assemblies figure;
Fig. 5 is the utility model embodiment match circuit structural representation;
Fig. 6 is the utility model embodiment return loss plot.
Symbol description:
10-housing
20-antenna part
200-feed part
201-the second radiant section
202-the first radiation fin
203-the first radiation coupling part
204-the second radiation coupling part
205-the second radiation fin
206-the first radiant section
207-grounded part
30-the first gap
31-the 3rd gap
32-Fpir Crevices gap
33-the second gap
40-capacitor element
41-inductance component
Embodiment
Referring to the accompanying drawing that the utility model embodiment is shown, the utility model below will be described in more detail.But the utility model can be with many multi-form realizations, and should not be construed as the restriction of the embodiment being subject in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present utility model completely.In these accompanying drawings, for clarity sake, may amplify size and the relative size in layer and region.
With reference to figure 1-6, the utility model provides a kind of all-metal mobile terminal multi-slot antenna, be arranged at and on a mobile terminal, carry out transmitting and receiving of wireless signal, comprise housing 10 and antenna part 20, between one end of antenna part 20 and housing 10, form the first gap 30, antenna part 20 is made up of the first radiant section 206 and radiation fin, forms the 3rd gap 31 between the first radiant section 205 and radiation fin, and housing 10 and antenna part 20 have been connected to form the shell of terminal.Below take the utility model in this mobile terminal of mobile phone as example, be elaborated, the utility model also can be used for, in other mobile terminal, not being restricted herein certainly.
In the present embodiment, housing 10 is the metal shell with the rectangular structure of electric conductivity, the shell that can be used as mobile phone uses, certainly housing 10 also can adopt the making material of alloy as housing, such as stainless steel, magnadure etc., obtain the profile as Fig. 2-Fig. 3 through making such as milling, forging and stamping, comprises left and right side, bottom surface and front, also can be polyhedron-shapedly, be not restricted herein.On housing 10, can be provided with display screen, and related accessory on mobile phone, as main screen button, loud speaker, camera, USB, side button etc., the setting position of certain each parts can design as the case may be, is not restricted herein.
As shown in Figure 3-4, antenna part 20 comprises the first radiant section 206 and radiation fin.Concrete, the first radiant section 206 is the hollow form of both ends open, relative formation first gap 30, one end of one end of the first radiant section 205 and housing 10; On the first radiant section 206, be also provided with the second gap 33, in the present embodiment, the second gap 33 is arranged on the base of the first radiant section 206, and the first radiant section 206 is disconnected; The shape in certain the second gap 33 and position as limit, the second gap 33 also can not disconnect the first radiant section 206 completely, can require adjust according to specific performance.Radiation fin is a sheet, and with the relative formation of the other end the 3rd gap 31 of the first radiant section 206, radiation fin is connected with the first radiant section 206 by radiation coupling part; In the present embodiment, Fpir Crevices gap 32, the Fpir Crevices gaps 32 and the second relative coupling in gap 33 are set on radiation fin, Fpir Crevices gap 32 and the second gap 33 are positioned on the same cross section of antenna part 20; Fpir Crevices gap 32 disconnects radiation fin to be divided into the first radiation fin 202 and the second radiation fin 205, radiation coupling part comprises the first radiation coupling part 203 and the second radiation coupling part 204, the first radiation fin 202 is connected with the first radiant section 206 by the first radiation coupling part 203, and the second radiation fin 205 is connected with the first radiant section 206 by the second radiation coupling part 204.
In the first gap 30 and the 3rd gap 31, be filled with dielectric, concrete, dielectric can be closed ring-type, also can be in the form of sheets or rectangular-shaped etc.; Can be that high molecular polymer is as PC, ABS etc.; After injection moulding, the first radiant section 206 and radiation fin and housing 10 are one-body molded, thereby form the shell of whole mobile phone.
Antenna part 20 also comprises grounded part 207 and feed part 200, the first radiation fin 202 is connected with feed part 200 parts by the second radiant section 201, receive feed signal, and the second radiant section 201 and feed part 200 are positioned at the hollow space of the first radiant section 206; The second radiation fin 205 is connected with housing 10 by grounded part 207, realizes the second radiation fin 205 ground connection, and first connects radiant section 203 and second connects radiant section 204 all between feed part 200 and grounded part 207; Grounded part 207 is connected with housing 10 through the hollow space of the first radiant section 2056; Wherein, feed part 200, the second radiant section 201 and grounded part 207 are arranged in the hollow space of the first radiant section 206, in order to prevent that the 4th radiant section 201, feed part 200 and ground part 204 from producing and disturbing the radiation of whole antenna part from arranged outside on the one hand, consider to there is aesthetic from the appearance of phone housing on the other hand.Certainly in the present embodiment, first connects radiant section 203, the second connection radiant section 204, the second radiant section 201 and grounded part 207 can realize by screw or shell fragment etc., so not only introduced the flexibility of antenna adjustments, more can play reinforcing effect.
In the present embodiment, between antenna part 20 and housing 10, form a radiation loop, be specially: feed part 200 → the second radiant section 201 → the first radiation fin 202 → the first radiation coupling part 203 → the first radiant section 206 → the second radiation coupling part 204 → the second radiation fin 205 → grounded part 207 → housings 10, this loop produces return loss as shown in Figure 6.In figure 6, the radiation loop forming between housing 10 and antenna part 20, produces the first low-frequency resonant, and its frequency range is 0.7GHz-0.8GHz, the first high-frequency resonant, its frequency range is 1.71GHz-2.17GHz, the second high-frequency resonant, and its frequency range is 2.17GHz-2.5GHz, and third high resonance frequently, its frequency range is 2.6GHz-2.7GHz, and the coupling between other the second gap 33 and Fpir Crevices gap 32 produces the 4th high-frequency resonant, and frequency is 2.4-2.5 GHz.
The width in the first gap 30 is generally 1-2mm, be designed in the present embodiment 2mm, the width in certain the first gap 30 can be set as the case may be, but because the less deterioration to antenna performance of width in the first gap 30 is more obvious, therefore the visual specific performance of the width in the first gap 30 requires and the situation such as appearance requirement regulates; In the present embodiment, the width design in the first gap 30 is 2mm, is in order to obtain lower low-frequency resonant on the one hand, on the other hand in order to meet the appearance design requirement of phone housing.The width in the 3rd gap 31 is generally 0.5-0.8mm, is designed in the present embodiment 0.8mm, but the width in certain the 3rd gap 31 also specifically need to design, the 3rd gap 31 is narrower, the third high frequently bandwidth of resonance is less.In the present embodiment, the adjusting available adjustment third high of the width in the second gap 33 and the 3rd gap 21 and position is the impedance of resonance frequently, be the impedance of 2.5GHz-2.7GHz frequency range, suitably regulate the width in the second gap 33 and the 3rd gap 21 and position to have good high frequency performance.
Being originally in example, the position of the second radiant section 201, the first radiation coupling part 203, the second radiation coupling part 204 and grounded part 207 all can require regulate according to specific performance, is not restricted herein; Wherein, the adjusting of the position of the second radiant section 201 can regulate the frequency shift (FS) of whole frequency range, the adjusting of the position of the first radiation coupling part 203 and the second radiation coupling part 204 can be used for regulating the impedance of the first low-frequency resonant, and the adjusting of the position of grounded part 207 can regulate the impedance of the second high-frequency resonant.
In the present embodiment, antenna part 20 is also introduced match circuit, and this match circuit is arranged at the junction of feed part 200 and the second radiant section 201.Concrete, match circuit comprises inductance component 41 and capacitor element 40, and inductance component 41 one end are connected with feed part 200, and the other end of inductance component 41 is connected with the second radiant section 201; Capacitor element 40 one end ground connection, the other end is connected to the junction of inductance component 41 and the second radiant section 201.The introducing of match circuit is used for regulating low-frequency impedance, the value of change inductance component 41 and capacitor element 40 can make low-frequency resonant frequency change, thereby can adjust different user frequency range demand, can meet multiband communication, more easily adjusted design antenna.In the present embodiment, the object of match circuit is the requirement in order to meet 0.7GHz-0.8GHz, and the value of certainly adjusting inductance component 41 and capacitor element 40 also can meet 0.80GHz-0.96GHz, repeats no more herein.
In sum, the utility model provides a kind of all-metal mobile terminal multi-slot antenna, comprise housing and the antenna part with electric conductivity, antenna part comprises both ends open and is the first radiant section of hollow form and radiation fin in the form of sheets, on the first radiant section, be provided with the second gap, on radiation fin, be provided with Fpir Crevices gap relative with the second gap and existence coupling; Formation relative to one end of housing the first gap, one end of the first radiant section, the other end of the first radiant section formation relative to radiation fin the 3rd gap, is filled with dielectric in the first gap and the 3rd gap; Radiation fin connects feed part, and is connected with the first radiant section by radiation coupling part, is connected with housing by the second radiant section.The utility model has been realized the one-body molded design of conductive shell and antenna part, and adopts polyhedral structure outward appearance, has attractive in appearance, practical feature; And the utility model is introduced match circuit, realized the variation of antenna low-frequency resonant frequency by different elements value in adjusting match circuit, can meet multiband communication, more easily adjusted design antenna.
Those skilled in the art should be understood that the utility model can not depart from spirit or scope of the present utility model with many other concrete forms realizations.Although also described embodiment of the present utility model, should understand the utility model and should not be restricted to these embodiment, within the utility model spirit and scope that those skilled in the art can define as appended claims, make and change and revise.
Claims (10)
1. an all-metal mobile terminal multi-slot antenna, is arranged on mobile terminal for transmitting and receiving wireless signal, it is characterized in that, described all-metal mobile terminal multi-slot antenna comprises housing and the antenna part with electric conductivity; Wherein, described antenna part comprises:
The first radiant section, is the hollow form of both ends open, and formation relative to the openend of described housing the first gap, one end of described the first radiant section, is provided with the second gap on described the first radiant section;
Radiation fin, in the form of sheets and with the relative formation of the other end the 3rd gap of described the first radiant section, on described radiation fin, be provided with Fpir Crevices gap, described the second gap is relative with described Fpir Crevices gap and produce coupling;
Radiation coupling part, described radiation fin is connected with described the first radiant section by radiation coupling part;
Feed part, receives feed signal and is connected with described radiation fin;
Grounded part, described radiation fin is connected with described housing by described grounded part, and described radiation coupling part is between described feed part and described grounded part.
2. all-metal mobile terminal multi-slot antenna according to claim 1, it is characterized in that, described the second gap cuts off described the first radiant section, described Fpir Crevices gap is cut off described radiation fin be divided into the first radiation fin and the second radiation fin, and described the second gap and described Fpir Crevices gap are positioned on the same cross section of described antenna part.
3. all-metal mobile terminal multi-slot antenna according to claim 2, it is characterized in that, described radiation coupling part comprises the first radiation coupling part and the second radiation coupling part, described the first radiation fin is connected with described the first radiant section by described the first radiation coupling part, and described the second radiation fin is connected with described the first radiant section by described the second radiation coupling part.
4. according to the all-metal mobile terminal multi-slot antenna described in claim 1 or 3, it is characterized in that, in described the first gap and described the 3rd gap, be filled with dielectric, described dielectric employing Shooting Technique and described housing, described the first radiant section and described radiation fin are one-body molded.
5. according to the all-metal mobile terminal multi-slot antenna described in claim 1 or 3, it is characterized in that, antenna part also comprises the second radiant section, and described feed part is connected with described radiation fin by described the second radiant section.
6. all-metal mobile terminal multi-slot antenna according to claim 5, is characterized in that, also comprises match circuit, and described match circuit is arranged at the junction of described feed part and described the second radiant section.
7. all-metal mobile terminal multi-slot antenna according to claim 6, is characterized in that, described match circuit comprises:
Inductance component, one end of described inductance component is divided and is connected with described current feed department, and the other end of described inductance component is connected with described the second radiant section;
Capacitor element, one end ground connection, the other end of described capacitor element is connected to the junction of described inductance component and described the second radiant section.
8. all-metal mobile terminal multi-slot antenna according to claim 1, is characterized in that, described the first radiant section inside is provided with the moving-member such as USB, loud speaker.
9. all-metal mobile terminal multi-slot antenna according to claim 1, is characterized in that, the distance between described housing and described the first radiant section is 1-2mm.
10. all-metal mobile terminal multi-slot antenna according to claim 1, is characterized in that, the distance between described the first radiant section and described radiation fin is 0.5-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857667.4U CN203674373U (en) | 2013-12-24 | 2013-12-24 | All-metal mobile terminal multi-slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857667.4U CN203674373U (en) | 2013-12-24 | 2013-12-24 | All-metal mobile terminal multi-slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674373U true CN203674373U (en) | 2014-06-25 |
Family
ID=50970633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320857667.4U Expired - Fee Related CN203674373U (en) | 2013-12-24 | 2013-12-24 | All-metal mobile terminal multi-slot antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674373U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868242A (en) * | 2015-05-22 | 2015-08-26 | 厦门大学 | Broadband patch antenna possessing ground radiation mode |
| CN105098369A (en) * | 2015-08-31 | 2015-11-25 | 努比亚技术有限公司 | Slot antenna and terminal |
| CN106025509A (en) * | 2016-07-12 | 2016-10-12 | 广东欧珀移动通信有限公司 | Shell, antenna device and mobile terminal |
| CN106981724A (en) * | 2017-01-19 | 2017-07-25 | 瑞声科技(新加坡)有限公司 | Antenna and mobile terminal |
| CN113675593A (en) * | 2020-05-14 | 2021-11-19 | 上海莫仕连接器有限公司 | Low-profile dual-band antenna device |
-
2013
- 2013-12-24 CN CN201320857667.4U patent/CN203674373U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868242A (en) * | 2015-05-22 | 2015-08-26 | 厦门大学 | Broadband patch antenna possessing ground radiation mode |
| CN104868242B (en) * | 2015-05-22 | 2017-12-08 | 厦门大学 | A kind of wideband patch antenna with eradiation mould |
| CN105098369A (en) * | 2015-08-31 | 2015-11-25 | 努比亚技术有限公司 | Slot antenna and terminal |
| CN105098369B (en) * | 2015-08-31 | 2016-12-07 | 努比亚技术有限公司 | A kind of slot antenna and terminal |
| CN106025509A (en) * | 2016-07-12 | 2016-10-12 | 广东欧珀移动通信有限公司 | Shell, antenna device and mobile terminal |
| CN106981724A (en) * | 2017-01-19 | 2017-07-25 | 瑞声科技(新加坡)有限公司 | Antenna and mobile terminal |
| CN113675593A (en) * | 2020-05-14 | 2021-11-19 | 上海莫仕连接器有限公司 | Low-profile dual-band antenna device |
| CN113675593B (en) * | 2020-05-14 | 2023-12-29 | 上海莫仕连接器有限公司 | Low-profile dual-band antenna device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103700925B (en) | A kind of all-metal mobile terminal double-slit antenna | |
| CN203747027U (en) | All-metal mobile terminal double-slit antenna | |
| CN103390796B (en) | A kind of mobile phone terminal antenna | |
| US9711841B2 (en) | Apparatus for tuning multi-band frame antenna | |
| EP2323219B1 (en) | Compact multiple-band antenna for wireless devices | |
| CN203674379U (en) | Mobile terminal metal-structure antenna | |
| CN203674373U (en) | All-metal mobile terminal multi-slot antenna | |
| CN103606736A (en) | Novel LTE antenna with all-metal frame | |
| CN203674398U (en) | Mobile terminal metal antenna | |
| WO2019086866A1 (en) | Hybrid closed slot lte antenna | |
| CN203674380U (en) | Mobile terminal metal appearance antenna | |
| KR101812653B1 (en) | Branched uwb antenna | |
| CN103178358A (en) | Switchable diversity antenna apparatus and methods | |
| CN113517546A (en) | Electronic equipment | |
| CN203398262U (en) | Novel LTE metal-frame antenna with ultra wide band | |
| CN203398299U (en) | Cellphone terminal antenna | |
| CN105846055A (en) | Multi-frequency PIFA mobile phone antenna containing parasitic element | |
| JP2005535239A (en) | Dual band antenna system | |
| KR20090096914A (en) | Planar type folded monopole antenna | |
| EP3446360A1 (en) | A multi-band wlan antenna device | |
| Chang et al. | Coupled‐fed small‐size PIFA for penta‐band folder‐type mobile phone application | |
| CN110165395B (en) | Miniaturized compact three-frequency-band antenna | |
| Yoon et al. | A CPW-fed polarization diversity antenna for UWB systems | |
| CN201741793U (en) | Mobile-phone double-feed antenna | |
| Joshi et al. | Dual band antenna for portable consumer devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140625 Termination date: 20171224 |