EP3190660A2 - Mimo antenne und drahtloses gerät - Google Patents

Mimo antenne und drahtloses gerät Download PDF

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Publication number
EP3190660A2
EP3190660A2 EP17171627.7A EP17171627A EP3190660A2 EP 3190660 A2 EP3190660 A2 EP 3190660A2 EP 17171627 A EP17171627 A EP 17171627A EP 3190660 A2 EP3190660 A2 EP 3190660A2
Authority
EP
European Patent Office
Prior art keywords
radiating element
current path
mimo antenna
grounding
radiating
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Withdrawn
Application number
EP17171627.7A
Other languages
English (en)
French (fr)
Other versions
EP3190660A3 (de
Inventor
Cheng-Hung Ko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sercomm Corp
Original Assignee
Sercomm Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sercomm Corp filed Critical Sercomm Corp
Publication of EP3190660A2 publication Critical patent/EP3190660A2/de
Publication of EP3190660A3 publication Critical patent/EP3190660A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
    • 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
    • H01Q1/243—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 with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points

Definitions

  • the present creation relates to a MIMO antenna and a wireless device, and more particularly, to a MIMO antenna and a wireless device with high isolation.
  • a wireless AP may be equipped with a multiple-input-multiple-output (MIMO) antenna to enhance the transmission rate.
  • MIMO multiple-input-multiple-output
  • the transmission rate of the wireless AP is limited by the isolation of the MIMO antenna. Therefore, how to enhance isolation of an MIMO antenna is a significant objective in the field.
  • the present creation discloses a MIMO antenna comprising a first radiating element with a terminal connected to a first feed-in element; a second radiating element with a terminal connected to a second feed-in element and another terminal connected to the first radiating element; and a connecting element, connected to the first radiating element, the second radiating element and a grounding component, configured to provide a grounding-current path from the first radiating element and the second radiating element to the grounding component.
  • the present creation further discloses a wireless devicecomprising a printed circuit board (PCB); a MIMO antenna, disposed on an edge side of the PCB, the MIMO antenna comprising a first radiating element, with a terminal connected to a first feed-in element; a second radiating element, with a terminal connected to a second feed-in element and another terminal connected to the first radiating element; and a connecting element, connected to the first radiating element, the second radiating element and a grounding component, configured to provide a grounding-current path from the first radiating element and the second radiating element to the grounding component.
  • PCB printed circuit board
  • MIMO antenna disposed on an edge side of the PCB
  • the MIMO antenna comprising a first radiating element, with a terminal connected to a first feed-in element; a second radiating element, with a terminal connected to a second feed-in element and another terminal connected to the first radiating element; and a connecting element, connected to the first radiating element, the second radiating element and
  • FIG. 1 is a schematic diagram of a MIMO antenna10 according to an embodiment of the present creation.
  • the MIMO antenna 10 comprises a first radiating element 12a, a second radiating element 12b and a connecting element 16.
  • a terminal of the first radiating element 12a is connected to a first feed-in element 14a, and another terminal is connected to the second radiating element 12b and the connecting element 16.
  • a terminal of the second radiating element 12b is connected to a second feed-in element 14b, and another terminal is connected to the first radiating element 12a and the connecting element 16.
  • the first radiating element 12a, the second radiating element 12b and the connecting element 16 are interconnected, and the connecting element 16 is further connected to a grounding component 18, configured to provide a grounding-current path ph_g from the first radiating element 12a and the second radiating element 12b to the grounding component 18.
  • the first radiating element 12a may be regarded/divided as a first segment 120a and a second segment 122a
  • the second radiating element 12b may be regarded/divided as a third segment 120b and a fourth segment 122b.
  • the first segment 120a of the first radiating element 12a and the third segment 120b of the second radiating element 12b are connected to each other, and the connecting element 16 is connected to the first segment 120a of the first radiating element 12a and the third segment 120b of the second radiating element 12b.
  • the first radiating element 12a forms a first bend between the first segment 120a and the second segment 122a
  • the second radiating element 12b forms a second bend between the third segment 120b and the fourth segment 122b.
  • the first radiating element 12a extends from the first bend toward the second radiating element 12b, and is connected to the second radiating element 12b; the second radiating element 12b extends from the second bend toward the first radiating element 12a, and is connected to the first radiating element 12a.
  • a first length of the first radiating element 12a should be a quarter wavelength of a first wireless signal to be transmitted or received, and a second length of the second radiating element 12b should be a quarter wavelength of a second wireless signal to be transmitted or received, where the first wireless signal and the second wireless signal may have the same wavelengths.
  • the first segment 120a and the second segment 122a of the first radiating element 12a along with the connecting element 16 may form a first current path ph_a.
  • the third segment 120b and the fourth segment 122b of the second radiating element 12b along with the connecting element 16 may form a second current path ph_b, where the first current path ph_a and the second current path ph_b are both through the grounding-current path ph_g to the grounding component 18.
  • the first current path ph_a is substantially in a counterclockwise direction
  • the second current path ph_b is substantially in a clockwise direction. That is, the first current path ph_a and the second current path ph_b have opposite rotation directions.
  • the MIMO antenna 10 may form the first current path ph_a and the second current path ph_b, and use the common connecting element 16 so as to provide the grounding-current path ph_g to the grounding component 18. Therefore, an isolation of the MIMO antenna 10 is enhanced, and the antenna transmission efficiency is improved.
  • first segment 120a of the first radiating element 12a and the third segment 120b of the second radiating element 12b may substantially be parallel to an edge of the grounding component 18, and the second segment 122a of the first radiating element 12a, the fourth segment 122b of the second radiating element 12b and the connecting element 16 may substantially be perpendicular to the edge of the grounding component 18. Therefore, the first current path ph_a is substantially formed to be in the counterclockwise direction, and the second current path ph_b is substantially formed to be in the clockwise direction.
  • the MIMO antenna of the present creation is not limited to have the shape illustrated in FIG. 1 .
  • FIG. 2 is a schematic diagram of a MIMO antenna20 according to an embodiment of the present creation.
  • the MIMO antenna 20 comprises a first radiating element 22a, a second radiating element 22b, a connecting element 26, a first feed-in element 24a, a second feed-in element 24b and a grounding component 28, which are corresponding to the first radiating element 12a, the second radiating element 12b, the connecting element 16, the first feed-in element 14a, the second feed-in element 14b and the grounding component 18 of the MIMO antenna 10, respectively.
  • Operational principles of the MIMO antenna 20 are similar to which of the MIMO antenna 10, and not narrated herein for brevity.
  • the current formed by the MIMO antenna 20 may be referred to FIG. 3 .
  • the current path of the MIMO antenna 20 includes a clockwise direction and a counterclockwise direction. Thereby, the MIMO antenna 20 may have good isolation, and the antenna transmission efficiency is improved.
  • the MIMO antenna of the present creation is not limited to be 2-dimensional antenna shown in FIG. 1 .
  • the MIMO antenna of the present creation may be a 3-dimensional (3D) antenna.
  • FIG. 4 is a schematic diagram of a MIMO antenna 40 according to an embodiment of the present creation.
  • the MIMO antenna 40 is similar to the MIMO antenna 10, and thus, same components are denoted by the same symbols.
  • a first radiating element 42a and a second radiating element 42b comprised in the MIMO antenna 40 are radiating elements with 3D structure.
  • the MIMO antenna 40 also may form current paths with opposite rotation directions and through the connecting element 16, to provide the grounding-current path to the grounding component 18, which is also within the scope of the present creation.
  • FIG. 5 is a schematic diagram of a wireless device 50 according to an embodiment of the present creation.
  • the wireless device 50 may be a wireless access point (AP), a wireless router, a wireless IP (Internet Protocol) sharer, a small cell, or a Wi-Fi station.
  • the wireless device 50 comprises a printed circuit board PCB and a MIMO antenna ANT.
  • the MIMO antenna ANT may be realized by the MIMO antennas 10, 20, 40.
  • the MIMO antenna ANT may be disposed on an edge of the printed circuit board PCB and coupled to the printed circuit board PCB.
  • the MIMO antenna of the present creation may, but not limited to, be manufactured by printed circuit board, FPC (flexible print circuit), iron sheets, or a laser direct structuring (LDS) manufacture process.
  • the wireless device of the present creation may also to applied in systems such as Bluetooth, Zigbee, Z-wave, DECT (Digital Enhanced Cordless Telecommunications), LTE (Long Term Evolution), 3G/4G/5G wireless or mobile communication systems, and not limited thereto.
  • the MIMO antenna of the present creation forms the current paths with the opposite rotation directions, and utilizes the common connecting elementto provide the grounding-current path to the grounding component.Therefore, isolation of the MIMO antenna is enhanced, and the antenna transmission efficiency is improved.

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP17171627.7A 2016-10-24 2017-05-18 Mimo antenne und drahtloses gerät Withdrawn EP3190660A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621156834.2U CN206163692U (zh) 2016-10-24 2016-10-24 多输入多输出天线及无线装置

Publications (2)

Publication Number Publication Date
EP3190660A2 true EP3190660A2 (de) 2017-07-12
EP3190660A3 EP3190660A3 (de) 2017-12-20

Family

ID=58654426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17171627.7A Withdrawn EP3190660A3 (de) 2016-10-24 2017-05-18 Mimo antenne und drahtloses gerät

Country Status (2)

Country Link
EP (1) EP3190660A3 (de)
CN (1) CN206163692U (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113437520A (zh) * 2021-06-29 2021-09-24 RealMe重庆移动通信有限公司 天线装置及电子设备
CN114709606A (zh) * 2022-03-24 2022-07-05 安徽大学 一种自解耦5g超宽带mimo天线对

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512498B (zh) * 2017-12-27 2021-08-31 华为技术有限公司 双馈电双频mimo天线装置和终端
CN108321495B (zh) * 2018-01-22 2020-05-19 Oppo广东移动通信有限公司 天线组件、天线装置及电子设备
CN109103597A (zh) * 2018-08-03 2018-12-28 瑞声精密制造科技(常州)有限公司 多天线系统及移动终端
CN109150262B (zh) * 2018-10-12 2020-10-13 常熟市泓博通讯技术股份有限公司 用于多输入多输出通信的天线控制的方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5532866B2 (ja) * 2009-11-30 2014-06-25 船井電機株式会社 マルチアンテナ装置および携帯機器
JP2012231417A (ja) * 2011-04-27 2012-11-22 Fujitsu Component Ltd アンテナ装置、及び、電子装置
TWI511378B (zh) * 2012-04-03 2015-12-01 Ind Tech Res Inst 多頻多天線系統及其通訊裝置
CN103441330A (zh) * 2013-08-06 2013-12-11 华为终端有限公司 无线通信设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113437520A (zh) * 2021-06-29 2021-09-24 RealMe重庆移动通信有限公司 天线装置及电子设备
CN113437520B (zh) * 2021-06-29 2022-08-16 RealMe重庆移动通信有限公司 天线装置及电子设备
CN114709606A (zh) * 2022-03-24 2022-07-05 安徽大学 一种自解耦5g超宽带mimo天线对

Also Published As

Publication number Publication date
EP3190660A3 (de) 2017-12-20
CN206163692U (zh) 2017-05-10

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