CN203826542U - Broadband dual polarization radiation unit and antenna - Google Patents
Broadband dual polarization radiation unit and antenna Download PDFInfo
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- CN203826542U CN203826542U CN201420180413.8U CN201420180413U CN203826542U CN 203826542 U CN203826542 U CN 203826542U CN 201420180413 U CN201420180413 U CN 201420180413U CN 203826542 U CN203826542 U CN 203826542U
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- 230000005855 radiation Effects 0.000 title claims abstract description 74
- 230000009977 dual effect Effects 0.000 title abstract description 7
- 230000010287 polarization Effects 0.000 title abstract description 3
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 241000283080 Proboscidea <mammal> Species 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005388 cross polarization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a broadband dual polarization radiation unit and an antenna. The radiation unit comprises two pairs of radiators whose radiation directions are vertical to each other, and a base installed under the radiators. The radiator comprises four dipoles which are respectively on four corners of a square. Two radiation arms of each dipole are arranged to be vertical to each other. The radiation arm extends horizontally from a corner of the square to the direction of the center of the square edge, and on a vertical direction, the radiation arm is amplified at a certain angle. Partial hollow-out structures are disposed on the horizontal direction and the vertical direction, so as to form two or more resonance frequency ranges, and the tail end is provided with a loading segment. The base comprises a connection portion disposed on the front surface of a metal reflection board, and four pairs of support portions extending from the connection portion to the front surfaces of the radiators. The radiation unit and the antenna are compact in structure, small in size, relatively low in cost, convenient in installation, relatively large in bandwidth, excellent in radiation index, firm and durable in structure, and is widely suitable for a multifrequency multisystem co-site antenna. The radiation unit has good radiation characteristic, and has wide market prospect.
Description
Technical field
The utility model relates to moving communicating field, is specifically related to a kind of Wideband dual-polarization radiating unit and antenna, especially multi-frequency and multi-system station antenna altogether.
Background technology
In cell mobile communication systems, antenna is communicating equipment circuit signal and the electromagnetic transducer of space radiation, be the bridgehead of spacing wireless communication, therefore antenna for base station is the important component part of mobile communication system, and its characteristic directly affects the overall performance of whole wireless network.Current hardly with telecom operators need dissimilar antenna meet its networking requirement; Secondly website selects difficulty to strengthen gradually when the networking of each operator.These have all proposed new challenge to the development of antenna for base station, and how to improve the versatility of antenna for base station and tackle better website and select the problems such as difficulty strengthens gradually, be the follow-up developments trend in market, mobile communication base station.
The increase of the new frequency range of wireless communication system, has driven the demand of multifrequency antenna.Multifrequency antenna can be divided into two frequencies, three frequencies, four frequencies and five frequencies etc.By using multifrequency antenna, can not only meet antenna operator expansion and newly apply, meet the requirement of compatible Future Technologies, and in conjunction with broadband, can also meet that different antennae operator polyphyly is altogether stood, the demand of multisystem shared antenna.
U.S. Patent number US6, a kind of dual polarization dipole 7 antennas of 819,200B2, two arms of dipole 7 are individual branches setting, adopt distributed design radiant body bandwidth narrower, and front and back ratio and cross polarization discrimination are undesirable is the common fault of this design, and assembling is complicated, and consistency is poor.
China Patent No. is 201010292965.4 a kind of high-performance broadband dual polarised radiation body and antenna, has taked the Combination Design mode of the interior bending of loaded line and downward bending, reduces the impact on high frequency oscillator.But this current trend that is radiation arm end changes, this period of time radiation arm form still designs in 45 ° of outward extending modes, and the change of internal does not occur the current trend on radiation arm.Simultaneously, the dual-band antenna of domestic main flow and multifrequency antenna groundwork frequency range are 820～960MHz &, 1710～2170MHz, along with the development of LTE, the introducing of 2600MHz frequency range makes to take into account 820～960MHz &, 1710～2170MHz &, 2500～2690MHz, and even double frequency and the multifrequency antenna of 698～960MHz &, 1710～2690MHz become following antenna developing direction.The radiant body spacing of this meaning high band will be less than the mode of current main flow, and low frequency radiation body is larger on the impact of high frequency radiation body.
Adopt in the industry narrower this problem of this knockdown radiant body ubiquity bandwidth, generally increase radiation bandwidth by the diameter that increases radiant body radiation arm, the dimensional weight of radiant body all will increase a magnitude.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model proposes a kind of Wideband dual-polarization radiating unit, be applicable to the multifrequency ultra-wideband antenna of standing altogether, the integrated die casting of radiant body is made, and size is little, and cost is lower, easy for installation; The utility model also proposes a kind of antenna and multi-frequency and multi-system station antenna altogether based on above-mentioned radiating element, and these antennas that form based on radiant body have good radiation characteristic.
Technical scheme: for solving the problems of the technologies described above, the utility model provides a kind of Wideband dual-polarization radiating unit, comprise two pairs of orthogonal radiant bodies of radiation direction and the base that is installed on radiant body below, described radiant body comprises four dipoles that are placed in respectively four angles of square, two radiation arms of each dipole are vertical placement mutually, radiation arm extends toward square center position on one side from foursquare angle end in the horizontal direction, radiation arm in the vertical direction amplifies at an angle, radiation arm in the horizontal direction and on vertical direction, be all provided with local engraved structure, form two or more resonance band, and be provided with endways loaded segment, described base comprises the connecting portion and the four pairs of support portions that extend in front from connecting portion toward radiant body that are arranged on metallic reflection plate front surface.
Four dipole current trends in the utility model are respectively: ┗, ┛, ┏, ┓; Wherein current trend is the superimposed synthetic positive 45 ° of polarised direction figure of dipole radiation of ┏ and ┛, current trend is the superimposed synthetic negative 45 ° of polarised direction figure of the dipole radiation of ┗ and ┓, this current trend mode has effectively promoted the concentration degree of energy, promotes radiation efficiency.The size that simultaneously effectively reduces radiating element, reduces manufacturing cost.
Further, the front quadrate design of radiant body, each radiation arm extends toward foursquare center position from square corner end, amplify at an angle in vertical direction, be polygon design, formed whole radiation arm not in same horizontal plane, radiation arm in the horizontal direction and local hollow out is all set in vertical direction, form multiple resonance frequency bands, effectively promote the bandwidth of radiating element.The two surperficial in the vertical directions up and down of described radiation arm form angle, and the scope of described angle is 0～30 °, for example, can be 5 °, 10 °, 15 °, 20 ° equal angles; The loaded segment of radiation arm end is downward bending simultaneously, is conducive to the design of multifrequency antenna.
Every a pair of support portion comprises the first arm and the second arm, described the first arm be provided with for the L shaped feed structure of feeder cable inner core welding, L shaped feed structure extends to the second arm, the second arm welds with feeder cable outer conductor, formation balun circuit.Can effectively reduce assembler by the mode of integrated L shaped feed structure time and performance parameter consistency high.
The adjacent radiation arm of described radiant body is mutually near forming square structure, the radiating aperture of radiating element is 0.38～0.45 centre frequency wavelength, be highly 0.18～0.25 centre frequency wavelength, the distance between radiant body and metallic reflection plate is 0.18～0.25 centre frequency wavelength.
Described support portion is extended and is formed to radiant body from metallic reflection plate bottom surface by arc or multi-line section, the bore of four pairs of support portion formation is amplification trend, back, support portion is provided with the groove of current supply cable cabling, and the first arm and second arm of every pair of support portion are equidistantly separated by, and the first arm is connected by the first jockey with the second arm.
Described the first jockey is the fixed fastener that insulation material is made, and fixed fastener is provided with two detents, and the first arm and second arm of described support portion lay respectively in detent.
The radiation arm of adjacent dipole connects by the second jockey, and described the second jockey is the medium fastener that insulation material is made, and medium fastener is provided with two through holes, and the loaded segment of the radiation arm of adjacent dipole is positioned at through hole.Make all radiant bodies form an entirety by increasing medium fastener, to promote the mechanical resistance pinking of radiating element.
The integrated die cast of described radiant body, in order effectively to reduce the contact area between radiant body and metallic reflection plate, the base pad that insulating material is made is installed between base and metallic reflection plate, on base pad, is reserved with and is convenient to the hole that cable routing passes through.
The utility model also discloses a kind of antenna, comprises metallic reflection plate and at least one above-mentioned Wideband dual-polarization radiating unit, and Wideband dual-polarization radiating unit is installed on metallic reflection plate with regular arrangement mode.
The utility model also discloses altogether station antenna of a kind of multi-frequency and multi-system, comprises on metallic reflection plate and metallic reflection plate except at least one above-mentioned Wideband dual-polarization radiating unit is set, and also needs to arrange the antenna radiation unit of at least two alien frequencies sections.
Beneficial effect: a kind of efficient broadband dual polarised radiation body of the present utility model and antenna, compared with prior art, have the following advantages:
(1) radiant body in the utility model is that the mode arranging at an angle of 90 by radiation arm forms small-bore radiant body, reduces the impact of this radiant body on all the other frequency ranges in double frequency or multifrequency antenna, applied range.
(2) radiation arm in the utility model adopts in the vertical direction gradual change type to amplify, and radiation arm has all adopted the mode of local hollow out at level and vertical direction simultaneously, forms multiple resonance bands, has effectively promoted the bandwidth characteristic of radiant body.
(3) size in the horizontal direction of the radiation arm in the utility model is less than the size on vertical direction, and radiation arm carried out loss of weight processing, promotes on the one hand the structural reliability of radiant body, and aspect reduces the cost of radiant body in addition.
(4) in the utility model, pass through integrated L shaped feed structure, radiant body, directly by welding feeder cable, effectively reduces quantity and the assembly process of associated components, has promoted the manufacturability of product.
(5) the medium fastener in the utility model adopts insulating material to make, as: the easy-formation materials such as POM, PP, structurally, can promote the reliability of dual polarised radiation body, in electric index, increase endways medium, changed the electrical length of dual polarised radiation body, and then promoted the indexs such as isolation.
(6) the base pad in the utility model is made up of insulating material (as the easy-formation such as POM, PP material), effectively reduces the contact area of radiant body and metal base plate, effectively promotes the consistency of intermodulation index and electrical performance indexes.
In sum, the Wideband dual-polarization radiating unit compact conformation in the utility model, bandwidth is larger, radiation index excellence, sound construction is durable, and the applied range of radiant body described in the utility model, highly versatile, conformity of production is better; The antenna forming based on radiant body has good radiation characteristic; There are wide market prospects.
Brief description of the drawings
Fig. 1 is the structural representation of radiating element in the utility model;
Fig. 2 is the decomposing schematic representation of radiating element in the utility model;
Fig. 3 is the front schematic view of radiant body of the present utility model;
Fig. 4 is the schematic diagram of radiation arm part in Fig. 1;
Fig. 5 is the schematic diagram of Fig. 1 medium fastener;
Fig. 6 is the schematic diagram of base pad in Fig. 1;
Fig. 7 is radiant body and the coaxial cable welding schematic diagram in the utility model;
Fig. 8 is the schematic diagram of antenna in the utility model;
Fig. 9 is the dual-band antenna contrast schematic diagram of dual-band antenna and prior art embodiment in the utility model;
Figure 10 is multi-frequency and multi-system station antenna schematic diagram altogether in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figures 1 to 7, a kind of Wideband dual-polarization radiating unit of the present utility model, comprise two pairs of orthogonal radiant bodies 1 of radiation direction and the base 5 that is installed on radiant body below, radiant body comprises four dipoles 7 that are placed in four angles of square, and two radiation arms 3 of dipole are vertical placement mutually; Radiation arm extends toward square center position on one side from foursquare angle end, amplifies at an angle in the vertical direction, and be provided with endways loaded segment 8 on (being vertical direction); Base 5 comprises the connecting portion 16 and the four pairs of support portions 9 that extend in front from connecting portion toward radiant body that are arranged on metallic reflection plate front surface, the first arm in every a pair of support portion 9 is provided with L shaped feed structure 4, weld for feeder cable inner core 10, feeder cable outer conductor 11 and support portion 9 second arm welding, form balun circuit 2.
In the present embodiment, the current trend that is placed in the dipole 7 at four angles of square is respectively: ┗, ┛, ┏, ┓; Wherein current trend is the superimposed synthetic positive 45 ° of polarised direction figure of dipole 7 radiation of ┏ and ┛, and current trend is the superimposed synthetic negative 45 ° of polarised direction figure of dipole 7 radiation of ┗ and ┓.This current trend mode has effectively promoted the concentration degree of energy, promotes radiation efficiency, effectively reduces the size of radiant body 1 simultaneously, reduces manufacturing cost.Radiation arm 3 bottoms keep being horizontally disposed with, and radiation arm 3, upwards according to 10 ° of angle enlargements, has formed the not structure in same horizontal plane of whole radiation arm 3.In addition can also design as follows: two surfaces up and down of radiation arm 3 are with respect to the horizontal plane opened 5 ° at vertical direction respectively and amplified.Meanwhile, radiation arm 3 in the horizontal direction and local hollow out is all set in vertical direction, produces the first resonant body 17 and the second resonant body 18.Radiation arm 3 ends are provided with decurved loaded segment 8, connect the first resonant body 17 and the second resonant body 18 simultaneously and form the design of " 7 " font.Loaded segment 8 is downward bending simultaneously, is conducive to the design of multifrequency antenna.The utility model can form two or more resonance frequency bands, effectively promotes radiating element bandwidth, and radiating element height is 0.18～0.25 centre frequency wavelength, and radiating aperture is 0.38～0.45 centre frequency wavelength.
In the present embodiment, extend to radiant body 1 from metallic reflection plate 6 bottom surfaces support portion 9, and the bore that formation is crowded around in the four pairs of support portions 9 presents amplification trend.Every pair of support portion 9 is made up of two support arms, is referred to as the first arm and the second arm, and the first arm cross section is L shaped, and feeder cable is ensconced in the first arm, and the first arm and the second arm two arms are equidistantly separated by, and is provided with the fixed fastener 13 that insulation material is made between two arms.The L shaped feed structure 4 that the first arm end is provided with extends to the second arm, and the arm and the feeder cable outer conductor 11 that are provided with feed structure weld, and L shaped feed structure and feeder cable inner core 10 on an other arm weld, and forms balun circuit 2.Radiating element, by the integrated die cast of radiant body 1, is provided with the base pad 14 that insulating material is made between radiating element and metallic reflection plate 6, be reserved with and be convenient to the hole that cable routing passes through on base pad 14.The radiation arm 3 of adjacent dipole 7 connects by the second jockey, and the second jockey is the medium fastener 12 that insulation material is made, and medium fastener 12 is provided with two through holes, and the loaded segment 8 of the radiation arm 3 of adjacent dipole 7 is positioned at through hole.
As shown in Figure 8, the invention also discloses a kind of antenna, comprise metallic reflection plate 6 and at least one above-mentioned Wideband dual-polarization radiating unit, Wideband dual-polarization radiating unit is installed on metallic reflection plate 6 with regular arrangement mode, and for example equally spaced word order or sphere of movements for the elephants shape are arranged.Fig. 9 be in the utility model dual-band antenna schematic diagram and with the dual-band antenna contrast schematic diagram of prior art embodiment; Antenna of the present utility model is compared with existing antenna, and size is little, more compact structure, and radiance is also better.
As shown in figure 10, the utility model also discloses altogether station antenna of a kind of multi-frequency and multi-system, comprises on metallic reflection plate 6 and reflecting plate 6 except at least one above-mentioned Wideband dual-polarization radiating unit is set, and also needs to arrange the antenna radiation unit 20 of at least two alien frequencies sections.For example, in Figure 10, left figure is the antenna structure of the multiple high bands of low-frequency range, and one or more HF array part is nested in low frequency array and one or more HF array is positioned over low frequency array side; In Figure 10, right figure is the antenna structure of two multiple high bands of low-frequency range, and two low frequency array side by side arrange, and multiple HF arrays are nested in low frequency array, realize multi-frequency and multi-system and stand altogether.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a Wideband dual-polarization radiating unit, it is characterized in that: comprise two pairs of orthogonal radiant bodies of radiation direction and the base that is installed on radiant body below, described radiant body comprises four dipoles that are placed in respectively four angles of square, two radiation arms of each dipole are vertical placement mutually, radiation arm extends toward square center position on one side from foursquare angle end in the horizontal direction, radiation arm in the vertical direction amplifies at an angle, radiation arm in the horizontal direction and on vertical direction, be all provided with local engraved structure, form two or more resonance band, and be provided with endways loaded segment, described base comprises the connecting portion and the four pairs of support portions that extend in front from connecting portion toward radiant body that are arranged on metallic reflection plate front surface.
2. Wideband dual-polarization radiating unit according to claim 1, it is characterized in that: the adjacent radiation arm of described radiant body is mutually near forming square structure, radiating aperture is 0.38～0.45 centre frequency wavelength, is highly 0.18～0.25 centre frequency wavelength.
3. Wideband dual-polarization radiating unit according to claim 1, is characterized in that: the two surperficial in the vertical directions up and down of described radiation arm form angle, and the scope of described angle is 0～30 °.
4. Wideband dual-polarization radiating unit according to claim 1, it is characterized in that: every a pair of support portion comprises the first arm and the second arm, described the first arm be provided with for the L shaped feed structure of feeder cable inner core welding, L shaped feed structure extends to the second arm, the second arm and the welding of feeder cable outer conductor, form balun circuit.
5. Wideband dual-polarization radiating unit according to claim 4, it is characterized in that: described support portion is extended and formed to radiant body from metallic reflection plate bottom surface by arc or multi-line section, the bore of four pairs of support portion formation is amplification trend, back, support portion is provided with the groove of current supply cable cabling, and the first arm and second arm of every pair of support portion are equidistantly separated by, and the first arm is connected by the first jockey with the second arm.
6. Wideband dual-polarization radiating unit according to claim 5, it is characterized in that: described the first jockey is the fixed fastener that insulation material is made, fixed fastener is provided with two detents, and the first arm and second arm of described support portion lay respectively in detent.
7. Wideband dual-polarization radiating unit according to claim 1, it is characterized in that: the radiation arm of adjacent dipole connects by the second jockey, described the second jockey is the medium fastener that insulation material is made, medium fastener is provided with two through holes, and the loaded segment of the radiation arm of adjacent dipole is positioned at through hole.
8. Wideband dual-polarization radiating unit according to claim 6, it is characterized in that: the integrated die cast of described radiant body, the base pad that insulating material is made is installed between base and metallic reflection plate, on base pad, is reserved with and is convenient to the hole that cable routing passes through.
9. an antenna, is characterized in that: comprise metallic reflection plate and at least one Wideband dual-polarization radiating unit as described in claim 1～8 any one, Wideband dual-polarization radiating unit is installed on metallic reflection plate with regular arrangement mode.
10. multi-frequency and multi-system station antenna altogether, it is characterized in that: comprise on metallic reflection plate and metallic reflection plate except at least one Wideband dual-polarization radiating unit described in claim 1～8 any one is set, also need to arrange the antenna radiation unit of at least two alien frequencies sections.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420180413.8U CN203826542U (en) | 2014-04-14 | 2014-04-14 | Broadband dual polarization radiation unit and antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420180413.8U CN203826542U (en) | 2014-04-14 | 2014-04-14 | Broadband dual polarization radiation unit and antenna |
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| CN203826542U true CN203826542U (en) | 2014-09-10 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956564A (en) * | 2014-04-14 | 2014-07-30 | 江苏捷士通射频系统有限公司 | Bandwidth dual-polarization radiating element and antenna |
| CN107171055A (en) * | 2017-06-07 | 2017-09-15 | 江苏华灿电讯股份有限公司 | A kind of dual-band and dual-polarization elevator antenna |
| CN107425264A (en) * | 2017-07-10 | 2017-12-01 | 武汉虹信通信技术有限责任公司 | A kind of bowl-shape Bipolarization antenna for base station radiating element and antenna |
| CN108281765A (en) * | 2018-01-19 | 2018-07-13 | 武汉虹信通信技术有限责任公司 | A kind of ultra-wideband dual-polarization radiating unit and antenna |
| CN108461904A (en) * | 2018-03-13 | 2018-08-28 | 江苏捷士通射频系统有限公司 | Ultra-wide-band emission unit applied to low-frequency range antenna |
| CN109980334A (en) * | 2019-03-12 | 2019-07-05 | 广东司南通信科技有限公司 | A kind of broadband dual polarized antenna |
| CN111446537A (en) * | 2019-01-17 | 2020-07-24 | 宏达国际电子股份有限公司 | Antenna structure |
| CN120674795A (en) * | 2025-08-22 | 2025-09-19 | 安徽徽业通信设备有限公司 | Inward-sinking type radiating element and antenna |
-
2014
- 2014-04-14 CN CN201420180413.8U patent/CN203826542U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956564A (en) * | 2014-04-14 | 2014-07-30 | 江苏捷士通射频系统有限公司 | Bandwidth dual-polarization radiating element and antenna |
| CN107171055A (en) * | 2017-06-07 | 2017-09-15 | 江苏华灿电讯股份有限公司 | A kind of dual-band and dual-polarization elevator antenna |
| CN107425264A (en) * | 2017-07-10 | 2017-12-01 | 武汉虹信通信技术有限责任公司 | A kind of bowl-shape Bipolarization antenna for base station radiating element and antenna |
| CN108281765A (en) * | 2018-01-19 | 2018-07-13 | 武汉虹信通信技术有限责任公司 | A kind of ultra-wideband dual-polarization radiating unit and antenna |
| CN108461904A (en) * | 2018-03-13 | 2018-08-28 | 江苏捷士通射频系统有限公司 | Ultra-wide-band emission unit applied to low-frequency range antenna |
| CN111446537A (en) * | 2019-01-17 | 2020-07-24 | 宏达国际电子股份有限公司 | Antenna structure |
| CN109980334A (en) * | 2019-03-12 | 2019-07-05 | 广东司南通信科技有限公司 | A kind of broadband dual polarized antenna |
| CN109980334B (en) * | 2019-03-12 | 2024-06-14 | 广州司南技术有限公司 | Broadband dual polarized antenna |
| CN120674795A (en) * | 2025-08-22 | 2025-09-19 | 安徽徽业通信设备有限公司 | Inward-sinking type radiating element and antenna |
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| Date | Code | Title | Description |
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| 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: 20140910 Termination date: 20200414 |