CN104022353A - Multi-band MIMO antenna used for intelligent machine - Google Patents
Multi-band MIMO antenna used for intelligent machine Download PDFInfo
- Publication number
- CN104022353A CN104022353A CN201410259148.7A CN201410259148A CN104022353A CN 104022353 A CN104022353 A CN 104022353A CN 201410259148 A CN201410259148 A CN 201410259148A CN 104022353 A CN104022353 A CN 104022353A
- Authority
- CN
- China
- Prior art keywords
- parasitic element
- intelligent machine
- antenna
- mimo antenna
- line
- 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.)
- Pending
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
The invention discloses a multi-band MIMO antenna used for an intelligent machine. The antenna can achieve miniaturization, has multiple bands and is high in isolation. The antenna comprises a dielectric substrate, the back side of the dielectric substrate is provided with a floor and a decoupling structure, the floor and the decoupling structure are connected as a whole, and the front side of the dielectric substrate is provided with a first radiation unit, a second radiation unit, a first matching circuit, a second matching circuit, a first parasitic element, a second parasitic element and a neutral line. By means of a coupled feeding structure, the decoupling structure and matching circuit structures, miniaturization and broadband coverage of the antenna are achieved, so that double resonance of the antenna at a low frequency band is achieved, the GSM850/900 frequency band is successfully covered, the GSM1800/1900/UMTS2100/LTE2300/2500 frequency bands are covered at a high frequency band, the requirements for miniaturization and multi-band of the MIMO antenna of the intelligent machine are met, and high isolation between antenna units can be obtained by means of the neutral line. The antenna is suitable for being used and popularized in the field of terminal antennas.
Description
Technical field
The present invention relates to terminal antenna technical field, be specifically related to a kind of multiband MIMO antenna for intelligent machine.
Background technology
Along with the arrival in 4G epoch, high speed wireless data is connected to become the development trend of mobile communication, and MIMO antenna technology is as the key technology of LTE, is the important means that improves message transmission rate, strengthens wireless connections reliability.The data transfer mode of intelligent machine is mainly the mode by wireless access, and therefore, MIMO antenna technology is widely used in intelligent machine, and the design of MIMO antenna system is directly determining the communication performance of intelligent machine.
At present, the existing problem of MIMO antenna system using in intelligent machine is: how to realize miniaturization, multiband, high intelligent machine MIMO antenna of isolating at complicated intelligent machine environment.Due to the increase of intelligent machine degree of metallization at present and reducing of antenna empty regions, make the design of multiband intelligent machine MIMO antenna become more difficult, and, along with reducing of Antenna Design space, mutual coupling between MIMO antenna becomes fatal problem, and the strong mutual coupling between MIMO antenna element will make the radiation efficiency of antenna reduce, and cannot bring into play the advantage of MIMO antenna technology, but when MIMO antenna element spacing hour, it is very strong that the isolation between antenna will become.In current MIMO antenna decoupling method, most of decoupling method is only applicable to narrow-band or high band decoupling, and in actual intelligent machine mimo system, needs compatible low frequency mode, and therefore most of decoupling mode cannot meet the demands.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of multiband MIMO antenna for intelligent machine that can realize miniaturization, multiband, high isolation.
The present invention solves the problems of the technologies described above adopted technical scheme: this is used for the multiband MIMO antenna of intelligent machine, comprise medium substrate, the back side of described medium substrate is provided with floor and decoupling structure, floor and decoupling structure interconnect, the front of described medium substrate is provided with the first radiating element, the second radiating element, the first match circuit, the second match circuit, the first parasitic element, the second parasitic element, in and line, described the first radiating element, the second radiative unit structure is identical and be symmetrical arranged along the center line of medium substrate, described the first match circuit, the parameter of the second match circuit is identical, described the first match circuit is arranged in the first radiating element, the second match circuit is arranged in the second radiating element, described the first parasitic element, the structure of the second parasitic element is identical and be symmetrical arranged along the center line of medium substrate, described the first parasitic element is connected with floor by earth point respectively with the second parasitic element, described the first radiating element is to the first parasitic element feed that is coupled, between the first parasitic element and decoupling structure, form inductive coupled, the second radiating element is to the second parasitic element feed that is coupled, between the second parasitic element and decoupling structure, form inductive coupled, in described, be connected with the second parasitic element with the first parasitic element respectively with the two ends of line.
Further, described decoupling structure is T shape structure highlightedly.
Further, described T shape highlightedly structure between the first parasitic element and the second parasitic element.
Further, described decoupling structure is defect ground structure.
Further, described defect ground structure is between the first parasitic element and the second parasitic element.
Further, in described and in line, be loaded with lumped inductance.
Further, described lumped inductance is arranged on Zhong Hexian center.
Further, in described and line adopt foldable structure.
Further, described in and one end of line be connected to the position of the first parasitic element respective frequencies CURRENT DISTRIBUTION maximum, described in and the other end of line be connected to the position of the second parasitic element respective frequencies CURRENT DISTRIBUTION maximum.
Further, described medium substrate is 0.8mmFR4 dielectric-slab.
Beneficial effect of the present invention: the multiband MIMO antenna for intelligent machine of the present invention is by the utilization feed structure that is coupled, decoupling structure and match circuit structure, the miniaturization and the broadband that have realized antenna cover, make antenna realize double resonance in low-frequency range, success covers GSM850/900 frequency range, cover GSM1800/1900/UMTS2100/LTE2300/2500 frequency range at high band, miniaturization and the multiband requirement of intelligent machine MIMO antenna are met, by in arranging and line, in making and line and the first parasitic element and the second parasitic element produce new coupling path, and the couple current between the couple current and the antenna element that produce by new coupling path is anti-phase, therefore can realize the anti-phase of couple current disappears mutually, thereby can between antenna element, obtain higher isolation, meanwhile, in introducing and line improve between antenna element in isolation, bandwidth impact for antenna is very little, but also can not cause other frequency range isolations to occur significantly worsening, therefore can effectively reduce the workload of Antenna Design personnel in MIMO Antenna Design process, shorten the design cycle of MIMO antenna system, can meet the requirement of the design of the 4th generation LTE intelligent machine antenna, be suitable for carrying out large-scale promotion.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention for the multiband MIMO antenna of intelligent machine;
Fig. 2 is the schematic diagram of the present invention for another structure of the multiband MIMO antenna of intelligent machine;
Description of symbols in figure: medium substrate 1, floor 2, the first radiating element 3, the second radiating element 4, the first match circuit 5, the second match circuit 6, the first parasitic element 7, the second parasitic element 8, in and line 9, T shape structure 10, defect ground structure 11, lumped inductance 12 highlightedly.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
As shown in Figure 1, this is used for the multiband MIMO antenna of intelligent machine, comprise medium substrate 1, the back side of described medium substrate 1 is provided with floor 2 and decoupling structure, floor 2 interconnects with decoupling structure, the front of described medium substrate 1 is provided with the first radiating element 3, the second radiating element 4, the first match circuit 5, the second match circuit 6, the first parasitic element 7, the second parasitic element 8, in and line 9, described the first radiating element 3, the second radiating element 4 structures are identical and be symmetrical arranged along the center line of medium substrate 1, described the first match circuit 5, the parameter of the second match circuit 6 is identical, described the first match circuit 5 is arranged in the first radiating element 3, the second match circuit 6 is arranged in the second radiating element 4, described the first parasitic element 7, the structure of the second parasitic element 8 is identical and be symmetrical arranged along the center line of medium substrate 1, described the first parasitic element 7 is connected with floor 2 by earth point respectively with the second parasitic element 8, described the first radiating element 3 is to the first parasitic element 7 feed that is coupled, between the first parasitic element 7 and decoupling structure, form inductive coupled, the second radiating element 4 is to the second parasitic element 8 feed that is coupled, between the second parasitic element 8 and decoupling structure, form inductive coupled, in described, be connected with the second parasitic element 8 with the first parasitic element 7 respectively with the two ends of line 9.The first radiating element 3 of the multiband MIMO antenna for intelligent machine of the present invention, the second radiating element 4, the first parasitic element 7, the second parasitic element 8 all can produce a high-frequency resonant point, can cover GSM1800/1900/UMTS2100/LTE2300/2500 frequency range, all produce a low-frequency resonant by the first parasitic element 7 and the second parasitic element 8, between the first parasitic element 7 and decoupling structure, form inductive coupled, between the second parasitic element 8 and decoupling structure, form inductive coupled, can shorten the resonance length of the first parasitic element 7 and the second parasitic element 8, then by the first match circuit 5, the second match circuit 6 can produce double resonance at antenna low frequency respectively, cover GSM850/900 frequency range.By the utilization feed structure that is coupled, decoupling structure and match circuit structure, the miniaturization and the broadband that have realized antenna cover, make antenna realize double resonance in low-frequency range, success covers GSM850/900 frequency range, cover GSM1800/1900/UMTS2100/LTE2300/2500 frequency range at high band, miniaturization and the multiband requirement of intelligent machine MIMO antenna are met, by in arranging and line 9, in making and line 9 and the first parasitic element 7 and the second parasitic element 8 produce new coupling path, and the couple current between the couple current and the antenna element that produce by new coupling path is anti-phase, therefore can realize the anti-phase of couple current disappears mutually, thereby can between antenna element, obtain higher isolation, meanwhile, in introducing and line 9 improve between antenna element in isolation, bandwidth impact for antenna is very little, but also can not cause other frequency range isolations to occur significantly worsening, therefore can effectively reduce the workload of Antenna Design personnel in MIMO Antenna Design process, shorten the design cycle of MIMO antenna system, can meet the requirement of the design of the 4th generation LTE intelligent machine antenna, be suitable for carrying out large-scale promotion.
In upper execution mode, described decoupling structure can be selected according to actual conditions, in order effectively to improve the impedance matching of low-frequency resonant point, as preferred mode be: described decoupling structure is preferably T shape structure 10 highlightedly, be further, described T shape highlightedly structure 10 between the first parasitic element 7 and the second parasitic element 8, also can be preferably defect ground structure 11, be further, described defect ground structure 11 is between the first parasitic element 7 and the second parasitic element 8, by T shape, structure 10 or defect ground structure 11 are arranged between the first parasitic element 7 and the second parasitic element 8 highlightedly, better balance T shape structure 10 or the impact of defect ground structure 11 on the first parasitic element 7 and the second parasitic element 8 highlightedly.
For in further improving and line 9 improve the effect of isolation, described in and in line 9, be loaded with lumped inductance 12.Further, during described lumped inductance 12 is arranged on and the center of line 9, the impact of balance lumped inductance 12 on two antenna elements better.
For in effectively reducing and line 9 for the taking of medium substrate 1, described in and line 9 adopt foldable structure.
For in reducing and the introducing of line 9 impact on the beamwidth of antenna, in and the link position of line 9 and the first parasitic element 7, the second parasitic element 8 and in and the width of line 9 be very crucial, in order to be reduced to minimum with the introducing of line 9 on the impact of the beamwidth of antenna in making, in described and one end of line 9 is connected to the position of the first parasitic element 7 respective frequencies CURRENT DISTRIBUTION maximums, in described and the other end of line 9 be connected to the position of the second parasitic element 8 respective frequencies CURRENT DISTRIBUTION maximums, in and the width parameter of line 9 need to be optimized according to isolation and impedance matching property.
In addition, described medium substrate 1 is preferably 0.8mmFR4 dielectric-slab.
Claims (10)
1. for the multiband MIMO antenna of intelligent machine, it is characterized in that: comprise medium substrate (1), the back side of described medium substrate (1) is provided with floor (2) and decoupling structure, floor (2) interconnects with decoupling structure, the front of described medium substrate (1) is provided with the first radiating element (3), the second radiating element (4), the first match circuit (5), the second match circuit (6), the first parasitic element (7), the second parasitic element (8), in and line (9), described the first radiating element (3), the second radiating element (4) structure is identical and be symmetrical arranged along the center line of medium substrate (1), described the first match circuit (5), the parameter of the second match circuit (6) is identical, described the first match circuit (5) is arranged in the first radiating element (3), the second match circuit (6) is arranged in the second radiating element (4), described the first parasitic element (7), the structure of the second parasitic element (8) is identical and be symmetrical arranged along the center line of medium substrate (1), described the first parasitic element (7) is connected with floor (2) by earth point respectively with the second parasitic element (8), described the first radiating element (3) is to the first parasitic element (7) feed that is coupled, between the first parasitic element (7) and decoupling structure, form inductive coupled, the second radiating element (4) is to the second parasitic element (8) feed that is coupled, between the second parasitic element (8) and decoupling structure, form inductive coupled, in described, be connected with the second parasitic element (8) with the first parasitic element (7) respectively with the two ends of line (9).
2. the multiband MIMO antenna for intelligent machine as claimed in claim 1, is characterized in that: described decoupling structure is T shape structure (10) highlightedly.
3. the multiband MIMO antenna for intelligent machine as claimed in claim 2, is characterized in that: described T shape highlightedly structure (10) is positioned between the first parasitic element (7) and the second parasitic element (8).
4. the multiband MIMO antenna for intelligent machine as claimed in claim 1, is characterized in that: described decoupling structure is defect ground structure (11).
5. the multiband MIMO antenna for intelligent machine as claimed in claim 4, is characterized in that: described defect ground structure (11) is positioned between the first parasitic element (7) and the second parasitic element (8).
6. according to the multiband MIMO antenna for intelligent machine described in any one claim in claim 1 to 5, it is characterized in that: in described and in line (9), be loaded with lumped inductance (12).
7. the multiband MIMO antenna for intelligent machine as claimed in claim 6, is characterized in that: during described lumped inductance (12) is arranged on and the center of line (9).
8. the multiband MIMO antenna for intelligent machine as claimed in claim 7, is characterized in that: in described and line (9) adopt foldable structure.
9. the multiband MIMO antenna for intelligent machine as claimed in claim 8, it is characterized in that: in described and one end of line (9) is connected to the position of the first parasitic element (7) respective frequencies CURRENT DISTRIBUTION maximum, described in and the other end of line (9) be connected to the position of the second parasitic element (8) respective frequencies CURRENT DISTRIBUTION maximum.
10. the multiband MIMO antenna for intelligent machine as claimed in claim 9, is characterized in that: described medium substrate (1) is 0.8mmFR4 dielectric-slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259148.7A CN104022353A (en) | 2014-06-12 | 2014-06-12 | Multi-band MIMO antenna used for intelligent machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259148.7A CN104022353A (en) | 2014-06-12 | 2014-06-12 | Multi-band MIMO antenna used for intelligent machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104022353A true CN104022353A (en) | 2014-09-03 |
Family
ID=51438992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259148.7A Pending CN104022353A (en) | 2014-06-12 | 2014-06-12 | Multi-band MIMO antenna used for intelligent machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104022353A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406183A (en) * | 2015-12-04 | 2016-03-16 | 华南理工大学 | Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access) |
| CN105826652A (en) * | 2015-11-02 | 2016-08-03 | 维沃移动通信有限公司 | Antenna device of mobile terminal and mobile terminal |
| CN106571523A (en) * | 2016-10-20 | 2017-04-19 | 杭州电子科技大学 | Terminal multiple-input-multiple-output high-isolation adjustable antenna |
| CN106972238A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of plane mutli-system integration antenna for mobile terminal |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| CN108987896A (en) * | 2018-07-27 | 2018-12-11 | 深圳市信维通信股份有限公司 | A kind of mimo antenna high-isolation terminal phone |
| CN109659686A (en) * | 2019-01-22 | 2019-04-19 | 惠州硕贝德无线科技股份有限公司 | A kind of high-isolation mimo antenna |
| CN109980364A (en) * | 2019-02-28 | 2019-07-05 | 华为技术有限公司 | A kind of Anneta module, antenna assembly and terminal device |
| WO2020024663A1 (en) * | 2018-08-03 | 2020-02-06 | 瑞声声学科技(深圳)有限公司 | Multi-antenna system and mobile terminal |
| CN111129768A (en) * | 2016-11-17 | 2020-05-08 | 华为技术有限公司 | Communication terminal |
| CN111430889A (en) * | 2019-01-10 | 2020-07-17 | 中兴通讯股份有限公司 | Terminal antenna and terminal |
| CN111490341A (en) * | 2020-04-22 | 2020-08-04 | 英华达（上海）科技有限公司 | Double-frequency antenna |
| CN112688076A (en) * | 2020-12-22 | 2021-04-20 | 北京邮电大学 | Planar multi-port multi-band common-ground small-spacing high-isolation MIMO antenna |
| CN112751162A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Mobile terminal |
| CN113540792A (en) * | 2021-07-21 | 2021-10-22 | 重庆传音通讯技术有限公司 | Antenna structure, terminal and processing method of terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025025A (en) * | 2010-10-29 | 2011-04-20 | 华南理工大学 | Small-sized wideband high-isolation four-unit MIMO antenna array |
| CN202058854U (en) * | 2010-12-08 | 2011-11-30 | 上海安费诺永亿通讯电子有限公司 | MIMO antenna structure realizing multi-frequency high isolation |
| US20120013519A1 (en) * | 2010-07-15 | 2012-01-19 | Sony Ericsson Mobile Communications Ab | Multiple-input multiple-output (mimo) multi-band antennas with a conductive neutralization line for signal decoupling |
| CN102832452A (en) * | 2012-09-18 | 2012-12-19 | 桂林电子科技大学 | High-isolation double-unit MIMO (multiple input multiple output) antenna array |
-
2014
- 2014-06-12 CN CN201410259148.7A patent/CN104022353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120013519A1 (en) * | 2010-07-15 | 2012-01-19 | Sony Ericsson Mobile Communications Ab | Multiple-input multiple-output (mimo) multi-band antennas with a conductive neutralization line for signal decoupling |
| CN102025025A (en) * | 2010-10-29 | 2011-04-20 | 华南理工大学 | Small-sized wideband high-isolation four-unit MIMO antenna array |
| CN202058854U (en) * | 2010-12-08 | 2011-11-30 | 上海安费诺永亿通讯电子有限公司 | MIMO antenna structure realizing multi-frequency high isolation |
| CN102832452A (en) * | 2012-09-18 | 2012-12-19 | 桂林电子科技大学 | High-isolation double-unit MIMO (multiple input multiple output) antenna array |
Non-Patent Citations (3)
| Title |
|---|
| YONG LING BAN，SHUN YANG: "Decoupled Planar WWAN Antennas With T-Shaped Protruded Ground for Smartphone Applications", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
| YONG LING BAN，ZHONG XIANG CHEN: "Decoupled Hepta-Band Antenna Array for WWAN/LTE Smartphone Applications", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
| YONG LING BAN，ZHONG XIANG CHEN: "Decoupled Hepta-Band Antenna Array for WWAN/LTE Smartphone Applications", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》, vol. 13, 23 May 2014 (2014-05-23) * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826652B (en) * | 2015-11-02 | 2018-10-16 | 维沃移动通信有限公司 | A kind of antenna assembly and mobile terminal of mobile terminal |
| CN105826652A (en) * | 2015-11-02 | 2016-08-03 | 维沃移动通信有限公司 | Antenna device of mobile terminal and mobile terminal |
| CN105406183A (en) * | 2015-12-04 | 2016-03-16 | 华南理工大学 | Triple-band MIMO (Multiple Input Multiple Output) antenna used for WLAN (Wireless Local Area Network) and WIMAX (World Interoperability for Microwave Access) |
| CN106571523A (en) * | 2016-10-20 | 2017-04-19 | 杭州电子科技大学 | Terminal multiple-input-multiple-output high-isolation adjustable antenna |
| CN111129768A (en) * | 2016-11-17 | 2020-05-08 | 华为技术有限公司 | Communication terminal |
| US11011837B2 (en) | 2016-11-17 | 2021-05-18 | Huawei Technologies Co., Ltd. | Communications terminal |
| CN106972238A (en) * | 2017-04-30 | 2017-07-21 | 电子科技大学 | A kind of plane mutli-system integration antenna for mobile terminal |
| CN107658561A (en) * | 2017-11-06 | 2018-02-02 | 珠海市魅族科技有限公司 | A kind of antenna assembly and terminal device |
| CN108987896A (en) * | 2018-07-27 | 2018-12-11 | 深圳市信维通信股份有限公司 | A kind of mimo antenna high-isolation terminal phone |
| WO2020024663A1 (en) * | 2018-08-03 | 2020-02-06 | 瑞声声学科技(深圳)有限公司 | Multi-antenna system and mobile terminal |
| CN111430889B (en) * | 2019-01-10 | 2023-06-16 | 中兴通讯股份有限公司 | Terminal antenna and terminal |
| CN111430889A (en) * | 2019-01-10 | 2020-07-17 | 中兴通讯股份有限公司 | Terminal antenna and terminal |
| CN109659686A (en) * | 2019-01-22 | 2019-04-19 | 惠州硕贝德无线科技股份有限公司 | A kind of high-isolation mimo antenna |
| CN109659686B (en) * | 2019-01-22 | 2023-10-20 | 惠州硕贝德无线科技股份有限公司 | High-isolation MIMO antenna |
| CN109980364A (en) * | 2019-02-28 | 2019-07-05 | 华为技术有限公司 | A kind of Anneta module, antenna assembly and terminal device |
| CN109980364B (en) * | 2019-02-28 | 2021-09-14 | 华为技术有限公司 | Antenna module, antenna device and terminal equipment |
| CN112751162A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Mobile terminal |
| CN112751162B (en) * | 2019-10-31 | 2022-04-22 | 华为技术有限公司 | Mobile terminal |
| CN111490341A (en) * | 2020-04-22 | 2020-08-04 | 英华达（上海）科技有限公司 | Double-frequency antenna |
| CN112688076A (en) * | 2020-12-22 | 2021-04-20 | 北京邮电大学 | Planar multi-port multi-band common-ground small-spacing high-isolation MIMO antenna |
| CN112688076B (en) * | 2020-12-22 | 2021-09-17 | 北京邮电大学 | Planar multi-port multi-band common-ground small-spacing high-isolation MIMO antenna |
| CN113540792A (en) * | 2021-07-21 | 2021-10-22 | 重庆传音通讯技术有限公司 | Antenna structure, terminal and processing method of terminal |
| CN113540792B (en) * | 2021-07-21 | 2023-07-25 | 重庆传音通讯技术有限公司 | Antenna structure, terminal and terminal processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104022353A (en) | Multi-band MIMO antenna used for intelligent machine | |
| CN102110900B (en) | Array antenna of mobile terminal and implementation method of array antenna | |
| CN103891043B (en) | Adopt multiple-input and multiple-output (MIMO) antenna of multiband trapper | |
| KR101378847B1 (en) | Internal antenna with wideband characteristic | |
| CN102299406B (en) | Multi-frequency antenna used for mobile terminal | |
| CN105514624A (en) | Mobile terminal antenna system and mobile terminal | |
| US20160254596A1 (en) | MIMO antenna, terminal and method for increasing isolation therefor | |
| CN103843194A (en) | Print-circuit board antenna and terminal | |
| CN104733861A (en) | Antenna structure and wireless communication device with same | |
| CN102570028A (en) | System and method for realizing high isolation of antennas between adjacent frequency bands | |
| CN112042054B (en) | Antenna device and terminal equipment | |
| CN102820523B (en) | Multifrequency antenna | |
| CN210489828U (en) | Isolated ground radiation antenna and MIMO antenna system | |
| KR20150054272A (en) | Dual-polarized antenna for mobile communication base station | |
| CN102394667B (en) | Mobile terminal and GPS and 3G single-antenna realizing device | |
| CN104885291A (en) | Antenna and filter structures | |
| CN104466401A (en) | Multi-antenna terminal | |
| CN102856644B (en) | LTE (Long Term Evolution) MIMO (Multiple Input Multiple Output) mobile phone antenna structure controlled by switch | |
| US9461365B2 (en) | LTE antenna pair for MIMO/diversity operation in the LTE/GSM bands | |
| CN205509020U (en) | Communication terminal | |
| CN104716441A (en) | Multi-band antenna and mobile terminal | |
| CN103531920A (en) | Four-antenna system for mobile phone working at 2300-2400 frequency band | |
| CN110829023B (en) | Antenna module and terminal | |
| CN204885426U (en) | Multiple -input -multiple -output antenna structure and terminal | |
| CN211605404U (en) | 5G dual-frequency quaternary MIMO antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |