WO2015035854A1 - Antenne à cadre métallique et terminal - Google Patents

Antenne à cadre métallique et terminal Download PDF

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Publication number
WO2015035854A1
WO2015035854A1 PCT/CN2014/084960 CN2014084960W WO2015035854A1 WO 2015035854 A1 WO2015035854 A1 WO 2015035854A1 CN 2014084960 W CN2014084960 W CN 2014084960W WO 2015035854 A1 WO2015035854 A1 WO 2015035854A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
metal frame
radio frequency
slot
radiation system
Prior art date
Application number
PCT/CN2014/084960
Other languages
English (en)
Chinese (zh)
Inventor
吴鹏飞
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2015035854A1 publication Critical patent/WO2015035854A1/fr

Links

Classifications

    • 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
    • H01Q1/12—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
    • H01Q1/44—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
    • 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

Definitions

  • the present invention relates to the field of mobile communication terminal technologies, and in particular, to a metal frame antenna and a terminal applied to an LTE (Long Term Evolution) intelligent terminal.
  • LTE Long Term Evolution
  • LTE is moving from a single data service to a full data service.
  • LTE While LTE is developing rapidly, it also faces many challenges. Due to the excessive dispersion of the LTE frequency band and the different voice solutions of operators, the trend of the separation of services in the terminal and roaming markets has become more serious. End products, especially smartphones, are emerging, but few products can meet the network needs of multiple operators at the same time.
  • One of the bottlenecks is the antenna design.
  • the LTE band is extremely wide, so it is more compatible with the antenna bandwidth after being compatible with the 2G/3G band.
  • mobile terminals with metal casings such as smart phones have become popular trends, and many manufacturers have introduced products with metallic appearance.
  • the antenna performance is difficult to meet the operator's network requirements.
  • a related art uses a bezel slot antenna for a mobile terminal of a metal casing.
  • the frame gap antenna is a loop antenna that uses a metal frame, an opening gap of the metal frame, and an impedance matching circuit to form a series or parallel feed.
  • the frame slot antenna uses the entire metal frame as the radiating element of the antenna, so that when the user uses the smart terminal, the hand affects the antenna signal of the smart terminal. Summary of the invention
  • the embodiment of the invention provides a metal frame antenna, which is applied to an LTE intelligent terminal, and can reduce the influence of the hand on the antenna signal.
  • a metal frame antenna includes an antenna portion and a non-antenna portion, wherein: an antenna portion of the metal frame is used to implement an antenna radiation system; and the antenna portion is separated from a non-antenna portion of the metal frame by a gap or insulator of the metal frame; The non-antenna portion is grounded.
  • the non-antenna portion is disposed in a contact area when the user holds the terminal.
  • the antenna radiation system includes a main antenna radiation system, a diversity antenna radiation system, and a global positioning system GPS antenna radiation system;
  • the slit includes a first slit, a second slit, a third slit, a fourth slit, and a fifth a slot;
  • the non-antenna portion includes a first non-antenna portion and a second non-antenna portion;
  • One end of the main antenna radiation system is connected to the first slot, and the other end is connected to the second slot; one end of the diversity antenna radiation system is connected to the third slot, and the other end is connected to the fifth slot; the GPS antenna radiating system has one end The fourth slot is connected, and the other end is connected to the fifth slot;
  • Two ends of the first non-antenna portion are respectively connected to the first slot and the third slot, and two ends of the second non-antenna portion are respectively connected to the second slot and the fourth slot.
  • both ends of the first non-antenna portion are grounded, and both ends of the second non-antenna portion are grounded.
  • the main antenna radiation system includes a radiation unit, a coupling unit, a radio frequency excitation port, a first radio frequency ground point, and a second radio frequency ground point;
  • the radiating unit is an antenna portion connected to the first slot and the second slot;
  • the coupling unit is located on the clearance area and grounded through the first RF grounding point;
  • One end of the RF excitation port and the second RF ground point are connected to the radiating unit, and the other end is grounded.
  • the radiating unit comprises a high frequency radiating unit and a low frequency radiating unit
  • the high frequency radiating unit is an antenna portion between the RF excitation port and the second slot
  • the low frequency radiating unit is the RF excitation The antenna portion between the port and the first slot.
  • the high frequency radiating element has a length of 30 mm
  • the low frequency radiating element has a length of 70 mm
  • the second slit has a width of 2 mm
  • the first slit has a width of 1 mm.
  • the diversity antenna radiation system comprises a radiation unit, an RF excitation port and a third RF ground point;
  • the radiating element of the diversity antenna radiation system is an antenna connected to the third slot and the fifth slot section;
  • One end of the RF excitation port and the third RF ground point are connected to the radiating unit, and the other end is grounded.
  • the radiating unit of the diversity antenna radiation system comprises a high frequency radiating unit and a low frequency radiating unit
  • the low frequency radiating unit is an antenna portion between the RF excitation port and the fifth slot
  • the high frequency radiating unit An antenna portion between the RF excitation port and the third slot.
  • the low frequency radiating element has a length of 65 mm
  • the high frequency radiating element has a length of 30 mm
  • the third slit, the fourth slit and the fifth slit have a width of 1 mm.
  • the GPS antenna radiation system comprises a radiation unit, an RF excitation port and a fourth RF grounding point;
  • the radiating unit of the GPS antenna radiation system is an antenna portion connected to the fourth slot and the fifth slot;
  • One end of the RF excitation port and the fourth RF ground point are connected to the radiating unit, and the other end is grounded.
  • the gap is filled with an insulator.
  • the embodiment of the invention further provides a terminal comprising the above metal frame antenna.
  • a gap is formed on the metal frame, the metal frame is isolated into an antenna portion and a non-antenna portion, and the antenna radiation system is directly realized by using the antenna portion of the metal frame.
  • the metal frame antenna structure of the present invention does not use the entire metal frame as the radiating element of the antenna, but only the antenna portion of the metal frame as the radiating element of the antenna, thereby reducing the influence of the hand on the antenna signal.
  • the width of the slit on the metal frame is mainly related to the receiving frequency of the antenna, and therefore, the width of the slit on the metal frame can be flexibly set according to the frequency to be received by the antenna.
  • the diversity antenna radiation system and the GPS antenna radiation system in the antenna radiation system are isolated by providing an open gap in the metal frame, thereby eliminating mutual interference between the respective received signals.
  • FIG. 1 is a schematic structural diagram of a metal frame antenna applied to an LTE intelligent terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a main antenna radiation system according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a diversity antenna radiation system and a GPS antenna radiation system according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a 0.5 GHz-3.0 GHz reflection coefficient curve of a main antenna radiation system at normal temperature and pressure according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a 0.5 GHz-3.0 GHz reflection coefficient curve of a diversity antenna radiation system at normal temperature and normal pressure according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a 0.5 GHz-3.0 GHz reflection coefficient curve of a GPS antenna radiation system at normal temperature and pressure according to an embodiment of the present invention.
  • 1 is the first slot
  • 2 is the second slot
  • 3 is the third slot
  • 4 is the fourth slot
  • 5 is the fifth slot
  • 6 is the first ground point of the non-antenna part
  • 7 is the non-antenna part.
  • 8 is a third grounding point of the non-antenna portion
  • 9 is a fourth grounding point of the non-antenna portion
  • 10 is a first non-antenna portion
  • 11 is a second non-antenna portion
  • 12 is a main antenna radiation system
  • 13 is the high frequency radiating element of the main antenna radiating system
  • 14 is the coupling unit
  • 15 is the first RF grounding point
  • 16 is the RF excitation port
  • 17 is the second RF grounding point
  • 18 is the diversity antenna radiation system.
  • the radiating unit, 19 is a radiating unit of the GPS antenna radiation system
  • 20 is a third RF grounding point
  • 21
  • embodiments of the present invention provide a metal frame antenna, wherein the antenna portion of the metal frame is used to implement the antenna radiation system; the antenna portion passes through the gap of the metal frame and the metal frame The non-antenna portion is isolated; the non-antenna portion is grounded.
  • the non-antenna portion is disposed in the contact area of the user when the handheld terminal is used.
  • the gap of the metal frame may be filled with air or an insulator, which is not limited in the present invention.
  • the antenna radiation system includes a main antenna radiation system, a diversity antenna radiation system, and a GPS antenna radiation system;
  • one end of the main antenna radiation system is connected to the first slot 1 and the other end is connected to the second slot 2; one end of the diversity antenna radiation system is connected to the third slot 3, and the other end is connected to the fifth slot 5; GPS antenna radiation system One end is connected to the fourth slit 4, and the other end is connected to the fifth slit 5.
  • Two ends of the first non-antenna portion 10 are respectively connected to the first slit 1 and the third slit 3, and two ends of the second non-antenna portion 11 are respectively connected to the second slit 2 and the fourth slit 4 Connected.
  • connection point 6 and the second connection point 7 at both ends of the first non-antenna portion 10 are both grounded, and the third connection point 8 and the fourth connection point 9 at both ends of the second non-antenna portion 11 are grounded.
  • the main antenna radiation system includes a radiation unit, a coupling unit 14, an RF excitation port 16, a first RF ground point 15 and a second RF ground point 17;
  • the radiating unit is an antenna portion connected to the first slit 1 and the second slit 2;
  • the coupling unit 14 is located on the clearance area, which is well known to those skilled in the art and is grounded through the first RF grounding point 15;
  • One end of the RF excitation port 14 and the second RF ground point 15 are connected to the radiating element, and the other end is grounded.
  • the radiating unit includes a high frequency radiating unit 13 and a low frequency radiating unit 12, the high frequency radiating unit 13 is an antenna portion between the RF excitation port 16 and the second slot 2, and the low frequency radiating unit 12 is between the RF excitation port 16 and the first slot 1. Antenna section.
  • the length of the high frequency radiation unit 13 is 30 millimeters (mm)
  • the length of the low frequency radiation unit 12 is 70 millimeters (mm)
  • the width of the second slit 2 is 2 millimeters (mm)
  • the width of the first slit 1 It is 1 mm (mm).
  • the diversity antenna radiation system includes a radiation unit, an RF excitation port 16 and a third RF ground point 20;
  • the radiating element of the diversity antenna radiating system is an antenna portion 18 connected to the third slot 3 and the fifth slot 5; One end of the RF excitation port 16 and the third RF ground point 20 are connected to the radiating unit, and the other end is grounded.
  • the radiating element of the diversity antenna radiating system comprises a high frequency radiating unit and a low frequency radiating unit, the low frequency radiating unit is an antenna portion between the RF excitation port 16 and the fifth slot 5, and the high frequency radiating unit is the RF excitation port 16 and the third slot 3. Between the antenna sections.
  • the length of the low frequency radiating element of the diversity antenna radiation system is 65 millimeters (mm), and the length of the high frequency radiating element of the diversity antenna radiation system is 30 millimeters (mm), the third slit 3, the fourth slit 4 and the fifth slit 5
  • the width is 1 mm (mm).
  • the GPS antenna radiation system includes a radiation unit, an RF excitation port 16 and a fourth RF ground point 21;
  • the radiating element of the GPS antenna radiation system is an antenna portion 19 connected to the fourth slot 4 and the fifth slot;
  • One end of the RF excitation port 16 and the fourth RF ground point 21 are connected to the radiating element, and the other end is grounded.
  • Figure 4-6 is a schematic diagram of a 0.5 GHz-3.0 GHz reflection coefficient curve of a three-antenna radiation system at normal temperature and pressure. It can be seen from the figure that the method proposed by the embodiment of the present invention is different according to different requirements of different operators and intelligent terminals. Both of them can meet different frequency band requirements. For example, the receiving frequency range of the LTE network is 0.7-0.9 GHz and 1.7-2.1 GHz. It can be seen from the figure that the method proposed by the present invention can meet the frequency band requirements of the LTE network.
  • a gap is formed on the metal frame, the metal frame is isolated into an antenna portion and a non-antenna portion, and the antenna radiation system is directly realized by using the antenna portion of the metal frame.
  • the metal frame antenna structure of the embodiment of the present invention does not use the entire metal frame as the radiating element of the antenna, but only the antenna portion of the metal frame as the radiating element of the antenna, thereby reducing the influence of the hand on the antenna signal.
  • the width of the slit on the metal frame is mainly related to the receiving frequency of the antenna, and therefore, the width of the slit on the metal frame can be flexibly set according to the frequency to be received by the antenna.
  • the diversity antenna radiation system and the GPS antenna radiation system in the antenna radiation system are isolated, thereby eliminating mutual mutual signals between the two. Interference.
  • the embodiment of the invention further provides a terminal comprising the above metal frame antenna.
  • a gap is formed on the metal frame, the metal frame is isolated into an antenna portion and a non-antenna portion, and the antenna radiation system is directly realized by using the antenna portion of the metal frame.
  • the metal frame antenna structure of the present invention does not use the entire metal frame as the radiating element of the antenna, but only the antenna portion of the metal frame as the radiating element of the antenna, thereby reducing the influence of the hand on the antenna signal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

La présente invention porte, dans des modes de réalisation, sur une antenne à cadre métallique et sur un terminal. Un système de rayonnement d'antenne est réalisé au moyen de parties d'antenne du cadre métallique, les parties faisant office d'antenne étant isolées des parties ne faisant pas office d'antenne du cadre métallique au moyen d'espaces du cadre métallique, et les parties ne faisant pas office d'antenne étant reliées à la terre. Selon l'antenne à cadre métallique proposée dans les modes de réalisation de la présente invention, le cadre métallique comporte les espaces, le cadre métallique est isolé dans les parties faisant office d'antenne et dans les parties ne faisant pas office d'antenne, et le système de rayonnement d'antenne est réalisé directement à l'aide des parties faisant office d'antenne du cadre métallique.
PCT/CN2014/084960 2013-09-16 2014-08-21 Antenne à cadre métallique et terminal WO2015035854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320574368.X 2013-09-16
CN201320574368.XU CN203536554U (zh) 2013-09-16 2013-09-16 一种金属框天线

Publications (1)

Publication Number Publication Date
WO2015035854A1 true WO2015035854A1 (fr) 2015-03-19

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CN (1) CN203536554U (fr)
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CN106953163A (zh) * 2017-01-19 2017-07-14 瑞声科技(新加坡)有限公司 天线以及移动终端
JP2019537909A (ja) * 2016-11-17 2019-12-26 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 通信端末
JP2020517184A (ja) * 2017-04-14 2020-06-11 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． ３スロット付きアンテナ装置及び方法
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CN110459856A (zh) * 2018-05-08 2019-11-15 深圳富泰宏精密工业有限公司 天线结构及具有该天线结构的无线通信装置
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JP2019537909A (ja) * 2016-11-17 2019-12-26 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 通信端末
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CN106953163A (zh) * 2017-01-19 2017-07-14 瑞声科技(新加坡)有限公司 天线以及移动终端
CN106953163B (zh) * 2017-01-19 2019-11-19 瑞声科技(新加坡)有限公司 天线以及移动终端
JP2020517184A (ja) * 2017-04-14 2020-06-11 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． ３スロット付きアンテナ装置及び方法
JP2021122150A (ja) * 2017-04-14 2021-08-26 華為技術有限公司Huawei Technologies Co., Ltd. ３スロット付きアンテナ装置及び方法
US11217880B2 (en) 2017-04-14 2022-01-04 Huawei Technologies Co., Ltd. Three-slotted antenna apparatus and method
JP7256230B2 (ja) 2017-04-14 2023-04-11 華為技術有限公司 ３スロット付きアンテナ装置及び方法
US11670838B2 (en) 2017-04-14 2023-06-06 Huawei Technologies Co., Ltd. Three-slotted antenna apparatus and method
EP3422472B1 (fr) * 2017-06-30 2022-07-20 Beijing Xiaomi Mobile Software Co., Ltd. Corps de bâti métallique et terminal comprenant celui-ci et terminal mobile

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