EP3159963A1 - Antenne und endgerät - Google Patents

Antenne und endgerät Download PDF

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Publication number
EP3159963A1
EP3159963A1 EP14895302.9A EP14895302A EP3159963A1 EP 3159963 A1 EP3159963 A1 EP 3159963A1 EP 14895302 A EP14895302 A EP 14895302A EP 3159963 A1 EP3159963 A1 EP 3159963A1
Authority
EP
European Patent Office
Prior art keywords
support plate
antenna
terminal
radiator
extended portion
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.)
Granted
Application number
EP14895302.9A
Other languages
English (en)
French (fr)
Other versions
EP3159963A4 (de
EP3159963B1 (de
Inventor
Qun Li
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.)
ZTE Corp
Original Assignee
ZTE 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 ZTE Corp filed Critical ZTE Corp
Publication of EP3159963A1 publication Critical patent/EP3159963A1/de
Publication of EP3159963A4 publication Critical patent/EP3159963A4/de
Application granted granted Critical
Publication of EP3159963B1 publication Critical patent/EP3159963B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01Q1/12—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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises

Definitions

  • the present disclosure relates to the field of mobile communications, and more particularly, to an antenna and a terminal.
  • Antennas are indispensable components in communications systems, and antenna performance may have a direct bearing on quality in receiving and transmitting signals.
  • sizes of smart terminals trend towards thinner and smaller. Therefore, sizes of antennas built-in the terminals need to be smaller and smaller, and a traditional PIFA (Planar Inverted-F Antenna) needs to have a height of at least 7mm.
  • PIFA Planar Inverted-F Antenna
  • a monopole antenna is required to have a certain clearance area, and the wider the frequency band of the antenna is, the larger the clearance area of the antenna is.
  • Conventional antennas are generally attached to housings in forms of FPC (flexible printed circuit) or steel sheets housingand then are connected with a mainboard via spring plates or pins to form a passage.
  • FPC flexible printed circuit
  • the antenna need to be installed in housing areas as far as possible from the mainboard. In this way, space of the antenna occupying in the terminal is increased, which may cause sizes of the terminal to be increased.
  • a technical problem to be solved by the present disclosure is a problem that a traditional antenna occupies a relatively large space of a terminal.
  • an antenna including: a support plate inside the terminal or an extended portion of the support plate and a radiator, where the support plate is connected with a mainboard of the terminal, the extended portion of the support plate is configured to form a coupled feeding with the radiator, and the support plate or the extended portion of the support plate exceeds a joint between the support plate and a housing of the terminal.
  • the antenna further includes another antenna arranged on the housing of the terminal.
  • the extended portion of the support plate is provided with an open cavity, one side of open cavity is provided with another cavity, and the radiator is arranged in the open cavity.
  • the open cavity is in shape of a rectangle.
  • the antenna has a radiation frequency of 1,710Mhz ⁇ 2,200Mhz.
  • the extended portion of the support plate is connected with a ground feed point of the mainboard of the terminal, and the radiator is connected with a signal feed point of the mainboard of the terminal.
  • the support plate is made from aluminum magnesium alloy, zinc alloy or stainless steel.
  • the support plate or the extended portion of the support plate and the radiator are respectively connected with a ground feed point of the mainboard of the terminal and a signal feed point of the mainboard of the terminal via a pin or a spring plate.
  • a terminal which includes any one of the foregoing antennas.
  • a part of the support plate inside the terminal or the extended portion of the support plate and the radiator are employed to form a coupled feeding antenna.
  • internal space of the terminal may be fully utilized, and a utilization rate of the internal space of the terminal may be improved.
  • the present disclosure provides an antenna and a terminal.
  • the following further describes in detail the present disclosure with reference to the accompanying drawings and the embodiments. It should be understood that the embodiments described herein are merely used to explain the present disclosure, and are not intended to limit the present disclosure.
  • the terminal as mentioned in this embodiment takes a mobile phone as an example, generally an internal structural layout thereof is as shown in FIG. 1 .
  • a metal support plate needs to be added to increase stability of the mainboard and the LCD.
  • a gap of about 1-2mm is provided between the PCB and the metal support plate.
  • a coupled feeding antenna (hereinafter referred to as antenna) is formed, based on the support plate, with an extended portion of the support plate exceeding a joint between the support plate and a housing of the terminal, or with a part of the support plate itself.
  • FIG. 2 is a schematic diagram illustrating an antenna according to embodiments of the present disclosure.
  • the antenna is composed of extended portions 7 and 8 of a support plate 2 inside the terminal and a radiator 6, where the support plate may be made from aluminum magnesium alloy, zinc alloy or stainless steel.
  • the extended portion of the support plate 2 refers to a portion of the support plate exceeding a joint 3 between the support plate 2 and a housing of the terminal. Dashed areas as shown in FIG. 2 are representative of the support plate 2 inside the terminal and the extended portion of the support plate.
  • the radiator 6 may be implemented by means of a sheet radiator from the extended portion of the support plate, or also may be implemented by means of other radiators made from materials different from the support plate 2.
  • the support plate 2 is connected with a mainboard 1 of the terminal, and the extended portions of the support plate are used for forming a coupled feeding with the radiator 6 to constitute a coupled feeding antenna.
  • the extended portion 7 and 8 of the support plate are connected with a ground feed point 4 of the mainboard 1 of the terminal, and the radiator 6 is connected with a signal feed point 5 of the mainboard of the terminal.
  • the radiator 6 may radiate energy within a waveband of 1,710Mhz-2,200Mhz.
  • a resonance generating higher frequency points may also be designed according to the needs.
  • the extended portion 7 and 8 of the support plate are mainly used to couple with the radiator 6 to generate a low-band resonance, where a wire arrangement mode thereof is not limited to what is shown in FIG. 2 .
  • Different wire arrangements may be designed and formed for purpose of generating excitation.
  • a structure of the antenna in the embodiments of the present disclosure is not limited to the concrete structure as shown in FIG. 2 .
  • the structure of the antenna may be any antenna structure as long as following conditions are satisfied.
  • the extended portion of the support plate inside the terminal is provided with an open cavity, one side of the open cavity is provided with another cavity, and the radiator is arranged in the open cavity.
  • the open cavity as shown in FIG. 2 is in shape of a rectangle, which is merely a specific implementation form of the antenna as mentioned in the embodiments of the present disclosure.
  • FIG. 3 is a schematic side view illustrating interior of a terminal provided with the antenna according to embodiments of the present disclosure.
  • the terminal takes a mobile phone as an example to make a further description of the antenna provided by the embodiments of the present disclosure.
  • the mobile phone as shown in FIG. 3 internally includes a PCB 1 and a metal support plate 2.
  • the antenna involved in this embodiment may further include another antenna 9, which may be an antenna built-in the mobile phone and may be arranged on the housing of the terminal.
  • the antenna constituted by the extended portions 7 and 8 of the support plate inside the terminal is connected to the mainboard via the ground feed point 4 and the signal feed point 5.
  • the extended portion of the support plate and the radiator 6 are respectively connected with the ground feed point and the signal feed point of the mainboard of the terminal via a pin and a spring plate. It is to be noted that the radiator 6 and the extended portions 7 and 8 inside the support plate are in the same plane.
  • the reference sign 3 as shown in the figure represents a joint between the metal support plate and a plastic part of a front housing of the mobile phone.
  • a length of the support plate reaches the position of the reference sign 3 or slightly stretches downward by 1-2mm to increase stability.
  • the support plate is properly prolonged, and the extended portion thereof are used to form a coupled feeding antenna which is designed by adopting a coupled feeding manner to obtain an antenna having a wider frequency band within a smaller area.
  • the antenna is relatively narrow in a low-frequency bandwidth and is not high enough in radiation efficiency.
  • an antenna 9 is additionally designed on the housing of the mobile phone to meet the needs.
  • the design and the performance of the antenna 9 may be adversely affected if the extended portions of the support plate are prolonged downward excessively, and a coupling effect may exist therebetween, which is relatively difficult for debugging.
  • the antenna may be used to generate a part of resonance which may be a high-band resonance.
  • the antenna may be used as an individual high-band antenna and may be connected with the antenna 9 on the housing of the mobile phone to generate a resonance of another frequency band, which may be a low frequency.
  • FIG. 4 is a chart of return loss generated when the antenna according to embodiments of the present disclosure is used as an individual antenna. As can be seen, it is somewhat difficult to cover a low frequency range.
  • FIG. 5 is an antenna efficiency curve chart of an antenna according to embodiments of the present disclosure within a frequency range of 1,710MHZ-2,160MHZ. As can be seen from FIG. 5 , a high frequency efficiency can basically meet the design needs.
  • FIG. 6 is an efficiency curve chart of an antenna according to embodiments of the present disclosure within a frequency range of 710MHZ-890MHZ. As can be seen from FIG.
  • FIG. 7 is an efficiency curve chart depicted, with a combination of an antenna according to embodiments of the present disclosure and an antenna built-in the terminal, within a frequency range of 1,710MHZ-2,160MHZ
  • FIG. 8 is an efficiency curve chart depicted, with a combination of an antenna according to embodiments of the present disclosure and an antenna built-in the terminal, within a frequency range of 710MHZ-890MHZ.
  • the antenna efficiency is greatly improved within a low frequency range.
  • the embodiments of the present disclosure further provide a terminal, where the terminal may include any one of following antennas.
  • the antenna is composed of an extended portion of a support plate inside the terminal and a radiator, the support plate is connected with a mainboard of the terminal, the extended portion of the support plate is used for forming a coupled feeding with the radiator, and the extended portion of the support plate refers to a portion of the support plate exceeding a joint between the support plate and a housing of the terminal.
  • the antenna further includes another antenna, which is arranged on the housing of the terminal.
  • the extended portion of the support plate is provided with an open cavity, one side of which is provided with another cavity, the radiator is arranged in the open cavity, and the antenna is composed of the open cavity and the radiator arranged in the open cavity.
  • the open cavity may also be in shape of a rectangle.
  • the antenna built-in the terminal has a radiation frequency of 1,710Mhz ⁇ 2,200Mhz.
  • the extended portion of the support plate may be connected with a ground feed point of the mainboard of the terminal, while the radiator may be connected with a signal feed point of the mainboard of the terminal.
  • the support plate may be made from aluminum magnesium alloy, zinc alloy or stainless steel.
  • the extended portion of the support plate and the radiator may be respectively connected with the ground feed point of the mainboard of the terminal and the signal feed point of the mainboard of the terminal via a pin or a spring plate.
  • the antenna provided by the embodiments of the present disclosure not only can fully utilize internal space of the terminal, but also can ensure that the antenna keeps away from a human body when a user is using the terminal, which may reduce a specific absorption rate (SAR) of the antenna and reduce a loss of the antenna efficiency when the terminal is in a usage status. Therefore, when the antenna provided by the embodiments of the present disclosure is combined with the antenna built-in the terminal, the overall efficiency of the antennas may be improved.
  • SAR specific absorption rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
EP14895302.9A 2014-06-20 2014-12-08 Antenne und endgerät Active EP3159963B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410281059.2A CN105281014B (zh) 2014-06-20 2014-06-20 一种天线及终端
PCT/CN2014/093262 WO2015192614A1 (zh) 2014-06-20 2014-12-08 一种天线及终端

Publications (3)

Publication Number Publication Date
EP3159963A1 true EP3159963A1 (de) 2017-04-26
EP3159963A4 EP3159963A4 (de) 2017-07-05
EP3159963B1 EP3159963B1 (de) 2021-01-20

Family

ID=54934813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14895302.9A Active EP3159963B1 (de) 2014-06-20 2014-12-08 Antenne und endgerät

Country Status (3)

Country Link
EP (1) EP3159963B1 (de)
CN (1) CN105281014B (de)
WO (2) WO2015192594A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107394354B (zh) * 2017-08-07 2020-06-23 Oppo广东移动通信有限公司 背板、前壳以及电子设备
WO2019029478A1 (zh) * 2017-08-07 2019-02-14 Oppo广东移动通信有限公司 背板、前壳以及电子设备
CN108023611B (zh) * 2017-12-01 2020-04-10 Oppo广东移动通信有限公司 天线切换方法、装置、存储介质及电子设备
CN107979387A (zh) * 2017-12-01 2018-05-01 广东欧珀移动通信有限公司 天线切换方法、装置、存储介质及电子设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102299417A (zh) * 2011-06-10 2011-12-28 哈尔滨工业大学 小型化pifa可重构天线装置
WO2013011339A1 (en) * 2011-07-18 2013-01-24 Sony Ericsson Mobile Communications Ab Multi-band wireless terminals with metal backplates and coupling feed elements, and related multi-band antenna systems
TW201316612A (zh) * 2011-10-07 2013-04-16 Pegatron Corp 天線模組與應用其之電子裝置
KR101879705B1 (ko) * 2012-01-18 2018-07-18 삼성전자주식회사 휴대용 단말기의 안테나 장치
CN103441329B (zh) * 2013-08-21 2017-03-01 深圳汉阳天线设计有限公司 智能手机lcd金属板辐射天线

Also Published As

Publication number Publication date
WO2015192614A1 (zh) 2015-12-23
EP3159963A4 (de) 2017-07-05
CN105281014A (zh) 2016-01-27
EP3159963B1 (de) 2021-01-20
WO2015192594A1 (zh) 2015-12-23
CN105281014B (zh) 2019-05-10

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