CN108923117A - A kind of antenna and mobile terminal - Google Patents
A kind of antenna and mobile terminal Download PDFInfo
- Publication number
- CN108923117A CN108923117A CN201810703234.0A CN201810703234A CN108923117A CN 108923117 A CN108923117 A CN 108923117A CN 201810703234 A CN201810703234 A CN 201810703234A CN 108923117 A CN108923117 A CN 108923117A
- Authority
- CN
- China
- Prior art keywords
- dorsal shield
- antenna
- gap
- sub
- metal
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
Abstract
The present invention provides a kind of antenna and mobile terminals, and the antenna applications are in mobile terminal, and mobile terminal has metal dorsal shield；Antenna includes：Radiating element；Wherein, metal dorsal shield includes bottom plate and surround the frame that bottom plate is arranged, wherein, the first gap is provided on bottom plate, the second gap is provided on frame, and the first gap and the second gap area form annular gap, metal dorsal shield is cut into the first sub- dorsal shield and the second sub- dorsal shield by annular gap；Radiating element includes the first sub- dorsal shield and the second sub- dorsal shield, wherein the first sub- dorsal shield is of coupled connections with the second sub- dorsal shield, and the second sub- dorsal shield forms a ring radiation body by annular gap.In the above-mentioned technical solutions, ring radiation body is formed on metal dorsal shield by annular gap, improves the performance of antenna, and when using the structure, cracks in the different location of metal-back, and then improve the effect of processing, improves yields.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of antennas and mobile terminal.
Background technique
The use of hand-held communication electronic equipment becomes increasingly popular, and wherein metal appearance is the most popular outer appearnce of current mobile phone
Type, but product appearance metallization and two key properties of product wireless performance not only no less important, but also condition each other.But in order to
Realize antenna performance, it usually needs crack to metal rear shell, in order to which the part metals region after cutting is used as the one of antenna
Part.
For aesthetic requirements, metal cracks cannot be too wide, but crack narrow and will affect antenna performance, at present mainstream
For gap width in 1.5mm or so, width is too big, influences the antenna performance of mobile phone.
Summary of the invention
The present invention provides a kind of antenna and mobile terminals, to improve the performance and yields of antenna.
The present invention provides a kind of antennas, and the antenna applications are in mobile terminal, and the mobile terminal has metal dorsal shield；
The antenna includes：Radiating element；Wherein,
The metal dorsal shield includes bottom plate and the frame around bottom plate setting, wherein is provided on the bottom plate
First gap is provided with the second gap on the frame, and first gap and second gap area form annulus
The metal dorsal shield is cut into the first sub- dorsal shield and the second sub- dorsal shield by gap, the annular gap；
The radiating element includes the first sub- dorsal shield and the second sub- dorsal shield, wherein the first sub- dorsal shield and described the
Two sub- dorsal shields are of coupled connections, and the second sub- dorsal shield forms a ring radiation body by the annular gap.
In the above-mentioned technical solutions, ring radiation body is formed on metal dorsal shield by annular gap, so that antenna can be with
As loop antenna, the performance of antenna is improved, and when using the structure, is cracked in the different location of metal-back, into
And the effect of processing is improved, improve yields.
In a specific embodiment, the frame includes the first side wall, second sidewall and third side wall, and institute
The first side wall is stated to connect with the second sidewall and the third side wall respectively；Wherein, second gap setting is described the
In one side wall and both ends extend to the second sidewall and third side wall.Form the groove body of a U-shaped.
It further include the feed element coupled with the radiating element in a specific embodiment；The feed is single
Member includes feeding point and feed line, and the feeding point is connect with the feed line by matching network.
In a specific embodiment, the matching network includes the branch of multiple parallel connections, and being used for will wherein
The selection switch that one branch is connected to the feed line；Wherein, at least one branch road is provided with inductively or capacitively.
In a specific embodiment, the feed line is feed elastic slice or FPC flexible circuit.
In a specific embodiment, the feed element is electrically connected with first branch or the feed is single
It is first to be electrically connected with second branch.
In a specific embodiment, the first sub- dorsal shield couples company by conduct piece with the described second sub- dorsal shield
It connects.
In a specific embodiment, the conduct piece is dowel or sheet metal.
In a specific embodiment, the conduct piece is located in first gap.
The present invention also provides a kind of mobile terminal, which includes antenna described in any of the above embodiments.
In the above-mentioned technical solutions, ring radiation body is formed on metal dorsal shield by annular gap, so that antenna can be with
As loop antenna, the performance of antenna is improved, and when using the structure, is cracked in the different location of metal-back, into
And the effect of processing is improved, improve yields.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of metal-back provided in an embodiment of the present invention；
Fig. 2 is antenna structure view provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Firstly the need of explanation, antenna provided by the invention is the antenna for being applied to mobile terminal, which can
Think the common mobile terminals such as mobile phone in the prior art, tablet computer.And the mobile terminal has metal dorsal shield 10, day
Line is in setting, using the structure on metal dorsal shield 10 as radiating element.
With reference to shown in Fig. 1, wherein Fig. 1 shows the structure of metal dorsal shield 10, and the metal dorsal shield 10 is in setting, gold
Belong to and opened up two gaps, respectively the first gap 14 and the second gap 13 on dorsal shield 10, wherein the metal dorsal shield 10 includes one
A bottom plate and the frame being arranged around the bottom plate, wherein the first gap 14 is arranged on bottom plate, and the setting of the second gap 13 exists
On frame, and the first gap 14 is connected to the second gap 13 and to form an annular gap, and the annular gap is by metal dorsal shield
10 are cut into the first sub- dorsal shield 11 and the second sub- dorsal shield 12.With reference to Fig. 1, the first gap 14 is in setting, by metal dorsal shield 10
Laterally (perpendicular to direction of 10 length direction of metal dorsal shield) cutting, and extended on frame from bottom plate.And above-mentioned side
Frame includes the first side wall, second sidewall and third side wall, and in specific setting, second sidewall and third side wall are arranged on
The two sides of the first side wall, and the first side wall is connect with second sidewall and third side wall respectively, wherein the first side wall is metal dorsal shield
A 10 end side wall, second sidewall and third side wall are respectively the long side wall of metal-back.When the second gap 13 is arranged, this
Two gaps 13 are arranged on the wall of end side, as can be seen that second gap 13 is when being arranged on the wall of end side, in end side in Fig. 1
Only have 13 1, the second gap gap on wall, therefore, there is biggish space to be arranged, facilitate the processing in the second gap 13.
In addition, second gap 13 is a gap closed at both ends, and when forming the second gap 13 in order to guarantee the first gap
14 and the second connection effect between gap 13, the both ends in second gap 13 extend respectively to second sidewall and third side wall,
And exist between the first gap 14 and intersect, to ensure that the connection in the first gap 14 and the second gap 13.With continued reference to figure
1, when the first gap 14 and the second gap 13 are connected to, so that the second sub- dorsal shield 12 forms the structure with annular gap,
And the first sub- dorsal shield 11 forms an independent laminated structure.
As shown in Figures 1 and 2, which includes two parts, respectively feed element and radiating element, wherein the day
The radiating element of line uses the first sub- dorsal shield 11 and the second sub- dorsal shield 12 of above-mentioned metal dorsal shield 10, and the first sub- dorsal shield 11
And second be of coupled connections between sub- dorsal shield 12, this is of coupled connections both can be using direct-coupling or using INDIRECT COUPLING.?
When direct-coupling, the first sub- dorsal shield 11 is of coupled connections with the described second sub- dorsal shield 12 by conduct piece 50.The conduct piece 50 can be with
It is dowel or sheet metal for different conduct pieces 50, such as conduct piece 50.When the conduct piece 50 is specifically arranged, the conduct piece
50 are arranged in the first gap 14.
When using the structure, when feed element is fed to radiating element, the first sub- dorsal shield 11 and the second son are carried on the back
Couple feed between shell 12.And shape gap is changed since the first gap and the second gap form one, so that the second sub- dorsal shield 12
It can be used as a ring radiation body, so that entire antenna is as a loop aerial.When the antenna is loop aerial,
The two sides in the first gap 14 are not related to ground, and therefore, when using the structure, the size in the first gap 14 will not be to the property of antenna
It can impact, so that the width in the first gap 14 can do narrower, width can be narrow more than 1.5mm, limit energy
Arrive 0.2mm or so, compared to for the gap of the 1.5mm used in the prior art, can significantly reduce be arranged in metal
The width in the first gap 14 on dorsal shield 10, so as to improve 10 aesthetics of metal dorsal shield.And it can be seen from foregoing description
When the radiating element of antenna is set, it is only necessary to open up two gaps on metal dorsal shield 10, processing is fairly simple, thus specifically giving birth to
When production, processing effect can be improved, and then improve yields.
For the feed element in the embodiment of the present invention, as shown in Figure 2 comprising feed element includes feeding point 21
And feed line 40, and feeding point 21 is connect with feed line 40 by matching network.Wherein, feeding point 21 is arranged in circuit board 20
On, and the feeding point 21, when being connect by matching network with feed line 40, which can according to need progress
Setting.In a specific embodiment, which includes the branch of multiple parallel connections, and for propping up one of
The selection switch that road is connected to feed line 40；Wherein, at least one branch road is provided with inductively or capacitively.When specifically used,
It can according to need connecting with feed line 40 by capacitor or inductance selection, so as to improve the performance of antenna.
Feed line 40 therein can be prepared using conductive material relatively common in the prior art, such as the feed line 40
For feed elastic slice or FPC flexible circuit.It certainly can also be using other modes, such as LDS (laser direct forming) metal layer.?
When feed line 40 feeds radiating element, can direct feed can both be used, can also be used in different ways
Couple feed, when using couple feed, feed element and radiating element couple feed.In the present embodiment, it is coupled shown in
Feed refers to INDIRECT COUPLING, i.e., has certain gap between feed line 40 and radiating element, by way of coupling, realizes
Feed line 40 is electrically connected with radiating element.
And in specific connection, which can both be electrically connected with the described first sub- dorsal shield 11, can also be with institute
Feed element is stated to be electrically connected with the described second sub- dorsal shield 12.Such as in a specific embodiment, the feed line and the first son
Dorsal shield 11 is electrically connected, at this point, being of coupled connections between the second sub- dorsal shield 12 and the first sub- dorsal shield 11, the second sub- dorsal shield 12 is used as one
Minor matters are coupled, in another specific embodiment, which is electrically connected with the second sub- dorsal shield 12, at this point, the first son back
It is of coupled connections between shell 11 and the second sub- dorsal shield 12, the first sub- dorsal shield 11 is used as a coupling minor matters.Electrical connection packet among the above
It includes but does not limit directly electrical connection and connected with INDIRECT COUPLING, it is only necessary to can be realized and feed electric feed signal to radiating element i.e.
It can.
The embodiment of the invention also provides a kind of mobile terminal, which includes the antenna of any of the above-described.Wherein,
The mobile terminal can be the common mobile terminals such as mobile phone, tablet computer.Wherein, which can be with reference among the above for day
The description of cable architecture, which forms ring radiation body by shape gap on metal dorsal shield, so that antenna can be used as ring day
Line improves the performance of antenna, and when using the structure, cracks in the different location of metal-back, and then improve
The effect of processing, improves yields.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of antenna is applied to mobile terminal, and the mobile terminal has metal dorsal shield；It is characterized in that, the antenna
Including：Radiating element；Wherein,
The metal dorsal shield includes bottom plate and the frame around bottom plate setting, wherein is provided with first on the bottom plate
Gap is provided with the second gap on the frame, and first gap and second gap area form annular gap, institute
It states annular gap and the metal dorsal shield is cut into the first sub- dorsal shield and the second sub- dorsal shield；
The radiating element includes the first sub- dorsal shield and the second sub- dorsal shield, wherein the first sub- dorsal shield and second son
Dorsal shield is of coupled connections, and the second sub- dorsal shield forms a ring radiation body by the annular gap.
2. antenna as described in claim 1, which is characterized in that the frame includes the first side wall, second sidewall and third
Side wall, and the first side wall is connect with the second sidewall and the third side wall respectively；Wherein, the second gap setting
On the first side wall and both ends extend to the second sidewall and third side wall.
3. antenna as described in claim 1, which is characterized in that further include the feed element coupled with the radiating element；Institute
Stating feed element includes feeding point and feed line, and the feeding point is connect with the feed line by matching network.
4. antenna as claimed in claim 3, which is characterized in that the matching network includes the branch of multiple parallel connections, Yi Jiyong
In the selection switch for being connected to one of branch with the feed line；Wherein, at least one branch road is provided with capacitor or electricity
Sense.
5. antenna as claimed in claim 3, which is characterized in that the feed line is feed elastic slice or FPC flexible circuit.
6. antenna as claimed in claim 3, which is characterized in that the feed element is electrically connected with first branch or institute
Feed element is stated to be electrically connected with second branch.
7. antenna as described in any one of claims 1 to 6, which is characterized in that the first sub- dorsal shield and second son are carried on the back
Shell is of coupled connections by conduct piece.
8. antenna as claimed in claim 7, which is characterized in that the conduct piece is dowel or sheet metal.
9. antenna as claimed in claim 8, which is characterized in that the conduct piece is located in first gap.
10. a kind of mobile terminal, which is characterized in that including antenna as described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810703234.0A CN108923117A (en) | 2018-06-30 | 2018-06-30 | A kind of antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810703234.0A CN108923117A (en) | 2018-06-30 | 2018-06-30 | A kind of antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108923117A true CN108923117A (en) | 2018-11-30 |
Family
ID=64422279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810703234.0A Withdrawn CN108923117A (en) | 2018-06-30 | 2018-06-30 | A kind of antenna and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001868A1 (en) * | 2020-06-30 | 2022-01-06 | 中兴通讯股份有限公司 | Antenna assembly and terminal device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202585708U (en) * | 2011-11-28 | 2012-12-05 | 广东步步高电子工业有限公司 | Metal surface casing mobile terminal with improved antenna arrangement |
| CN204156082U (en) * | 2014-10-24 | 2015-02-11 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna structure and mobile terminal |
| CN205178010U (en) * | 2015-12-10 | 2016-04-20 | 青岛海信移动通信技术股份有限公司 | NFC antenna and mobile terminal with metal casing device |
| CN205488538U (en) * | 2016-04-19 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | Cell -phone antenna structure based on metal backing lid |
| CN205846212U (en) * | 2016-07-01 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Whole frequency band antenna structure of mobile phole |
| CN106876897A (en) * | 2017-02-28 | 2017-06-20 | 北京小米移动软件有限公司 | Shell after mobile terminal and its metal |
| CN206516758U (en) * | 2016-11-04 | 2017-09-22 | 珠海市魅族科技有限公司 | A kind of terminal device |
-
2018
- 2018-06-30 CN CN201810703234.0A patent/CN108923117A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202585708U (en) * | 2011-11-28 | 2012-12-05 | 广东步步高电子工业有限公司 | Metal surface casing mobile terminal with improved antenna arrangement |
| CN204156082U (en) * | 2014-10-24 | 2015-02-11 | 广东欧珀移动通信有限公司 | A kind of mobile terminal antenna structure and mobile terminal |
| CN205178010U (en) * | 2015-12-10 | 2016-04-20 | 青岛海信移动通信技术股份有限公司 | NFC antenna and mobile terminal with metal casing device |
| CN205488538U (en) * | 2016-04-19 | 2016-08-17 | 惠州硕贝德无线科技股份有限公司 | Cell -phone antenna structure based on metal backing lid |
| CN205846212U (en) * | 2016-07-01 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Whole frequency band antenna structure of mobile phole |
| CN206516758U (en) * | 2016-11-04 | 2017-09-22 | 珠海市魅族科技有限公司 | A kind of terminal device |
| CN106876897A (en) * | 2017-02-28 | 2017-06-20 | 北京小米移动软件有限公司 | Shell after mobile terminal and its metal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001868A1 (en) * | 2020-06-30 | 2022-01-06 | 中兴通讯股份有限公司 | Antenna assembly and terminal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI487198B (en) | A multi-band antenna | |
| CN102834966B (en) | There is the antenna of cover radiant body | |
| KR102455333B1 (en) | Antenna systems and terminal equipment | |
| CN102881997B (en) | Mobile communication device and antenna device | |
| CN113517546B (en) | Electronic equipment | |
| CN102868017B (en) | Radiation device and array antenna based on same | |
| CN105811076B (en) | A kind of high-isolation antenna structure of mobile phole based on metal back cover | |
| CN103579754B (en) | Antenna and the method being used for forming antenna | |
| US20130113671A1 (en) | Slot antenna | |
| CN104577304B (en) | Antenna structure and wireless communication device with the antenna structure | |
| WO2020024659A1 (en) | Antenna system and mobile terminal | |
| TWI521788B (en) | Antenna assembly and wireless communication device | |
| EP2677596B1 (en) | Communication device and antenna system therein | |
| CN101388494B (en) | Multi-antenna integrated module | |
| CN102820523B (en) | Multifrequency antenna | |
| CN109301486B (en) | Single-layer patch type microwave millimeter wave cross-frequency-band dual-polarized radiation unit for 5G mobile communication | |
| CN107181068A (en) | High-frequency ultra-wideband dual polarization all-wave radiating element | |
| TWI446626B (en) | Wideband antenna for mobile communication | |
| CN103022647A (en) | Antenna combination | |
| CN106921035A (en) | Antenna system | |
| CN107645054B (en) | Antenna structure and wireless communication device with same | |
| CN205944404U (en) | Casing, antenna device and mobile terminal | |
| CN108879070B (en) | Electronic equipment | |
| CN109841954B (en) | Antenna structure and wireless communication device with same | |
| WO2021000704A1 (en) | Housing assembly, antenna apparatus, and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181130 |
|
| WW01 | Invention patent application withdrawn after publication |