WO2019076205A1 - Terminal - Google Patents

Terminal Download PDF

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Publication number
WO2019076205A1
WO2019076205A1 PCT/CN2018/109339 CN2018109339W WO2019076205A1 WO 2019076205 A1 WO2019076205 A1 WO 2019076205A1 CN 2018109339 W CN2018109339 W CN 2018109339W WO 2019076205 A1 WO2019076205 A1 WO 2019076205A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
terminal
radiator
metal
present disclosure
Prior art date
Application number
PCT/CN2018/109339
Other languages
English (en)
Chinese (zh)
Inventor
唐菊
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 WO2019076205A1 publication Critical patent/WO2019076205A1/fr

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    • 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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • the present disclosure relates to the field of communications, and in particular to a terminal.
  • the frame metal acts as a part of the radiator of the antenna, and the trace on the antenna support serves as another part of the radiator of the antenna, and the two combine to complete the antenna radiation.
  • the other is the use of frame metal plus tuning.
  • a terminal comprising: an antenna disposed on a metal casing of the terminal, slotted into the metal casing to divide into a plurality of different frequency bands Antenna radiator.
  • the antenna radiator includes at least one of the following: a low frequency radiator, an intermediate frequency radiator, and a high frequency radiator.
  • the antenna includes at least one of the following: a 2G/3G/4G full-band transmit and receive antenna, a diversity antenna, a partial LTE frequency band 4 ⁇ 4 MIMO antenna, a WIFI antenna, a WIFI MIMO antenna, and a GPS antenna.
  • the slot is a straight line, a diagonal line or an irregular curve, and the slot is used to divide the same antenna on the same plane.
  • the grooving may be formed by mechanical cutting or laser microporation.
  • the metal casing is provided with an isolating tape (or a slit) filled with a non-metallic material for isolating the plurality of antennas.
  • the grooving is filled with a non-metallic material, wherein the filling method is in-mold injection or dispensing.
  • the feed point and the grounding point of the antenna are disposed on the PCB main board of the terminal, and are electrically connected to the antenna radiator through a metal dome.
  • the surface of the antenna radiator is painted or spray treated.
  • the metal casing comprises at least one of the following: a metal frame, a metal back shell, and a metal front shell.
  • the antenna is disposed at one or both ends of the metal back shell of the terminal.
  • the terminal comprises two foldable display screens, wherein the antenna radiator is disposed on a metal housing of the non-folded faces of the two display screens.
  • FIG. 1 is a schematic view of a spacer on a metal bezel in accordance with an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a metal frame antenna routing according to an embodiment of the present disclosure
  • FIG. 3 is a LTE B3/B7 MIMO antenna trace diagram in accordance with an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a metal backshell antenna in accordance with an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a full-band antenna trace of a metal back shell according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a diversity antenna and an LTE B3/B7 MIMO antenna trace according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a double-sided folding screen terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a 2G/3G/4G full-band transceiver antenna trace of a dual-screen folding terminal according to an embodiment of the present disclosure.
  • the frame metal plus the way of routing on the antenna bracket requires the antenna bracket to be added.
  • the antenna holder cannot be added due to limitations such as the thickness of the entire machine.
  • the bracket wire portion is blocked by the screen, and the antenna cannot be radiated.
  • the radiation efficiency of the antenna body is usually sacrificed, and the loss of the switch, the antenna performance is generally not optimal, and cannot meet the requirements of the application scenario.
  • An embodiment of the present disclosure provides a terminal, which may be any electronic device configured with an antenna component, such as a smart machine, a PAD, etc., the terminal has a metal frame or a metal back shell, and the antenna is disposed behind the metal frame or metal. On the shell, the antenna radiator is divided into a plurality of different frequency bands by slotting the metal frame or the metal back shell.
  • the antenna is divided into different frequency bands by slotting in the metal frame or the rear shell of the terminal to complete the antenna routing, thereby improving the antenna radiation efficiency and optimizing the antenna performance.
  • the antenna radiator provided by the slotting the antenna resonance formed by the antenna is required to fall into the frequency band required by the antenna, and at the same time, the bandwidth covers the required frequency band, thereby obtaining the optimal radiation efficiency of the antenna.
  • a plurality of antennas may be disposed on the terminal, for example, multiple antennas of the following types may be included: a 2G/3G/4G full-band transmit and receive antenna, a diversity antenna, a partial LTE frequency band 4 ⁇ 4 MIMO antenna, a WIFI antenna, and a WIFI MIMO antenna. GPS antennas, etc.
  • the metal frame of the terminal is provided with a plurality of isolation strips of 1 mm to 2 mm, and the isolation strips may be filled with non-metal materials for isolating different antennas.
  • the number of isolation strips may be one or more, and the position and number of the isolation strips may be set according to antenna requirements.
  • the feed point and the grounding point of the antenna are disposed on the PCB main board of the terminal, and are electrically connected to the metal frame antenna radiator through the metal dome.
  • the metal frame of the terminal is set to a radiator of different frequency bands of the antenna according to the required frequency band of the antenna, such as a low-frequency radiator and a medium-high-frequency radiator, thereby completing the antenna routing, improving the antenna radiation efficiency, and optimizing the antenna performance.
  • the segmentation of the antenna radiator can be realized by a slotting method of mechanical processing cutting, or can be realized by a slotting method in which a laser microhole forms a micro slit, and the formed antenna can be called a slotted antenna or a slot antenna.
  • the position, number, length and width of the slot can be set according to the performance requirements of the antenna.
  • the principle is to change the radiation characteristics and impedance characteristics of the radiator by grooving the radiator to change the current of the radiator to meet the requirements.
  • the antenna performance is optimized.
  • the slotting should consider the mutual interference and isolation between different antennas.
  • the shape, position, number, length and width of the slot should be set to meet the requirements of mutual interference and isolation between the antennas.
  • the slotted position needs to reasonably avoid the opening on the whole machine, such as USB opening, earphone opening, speaker sounding opening, etc., to meet the structural strength of the whole machine.
  • the shape of the slot may be a straight line, a diagonal line or an irregular curve.
  • a relatively long strip, an L shape, a U shape, or the like may be used, and a plurality of slotted lines may be used to form a rectangle, a rectangle, a triangle, and the like.
  • the position of the slot is not limited to being on one plane, and may be on the radiator of the same antenna on different planes, for example, may be connected to the bottom surface and the side surface of the metal frame, or the bottom surface and the side surface of the metal frame may be grooved. But not connected to each other.
  • Different slots on the same antenna can be the same width or different widths.
  • the same slot on the same antenna can be a uniform width or an irregular width.
  • the slotted position can be filled with a non-metallic material, and different antenna radiators of the same antenna are injection molded to ensure structural strength.
  • the filling method of the slotting position may be in-mold molding, dispensing, or the like.
  • surface treatment is performed on the antenna radiator to ensure the aesthetic appearance of the metal frame. The surface treatment can be done by baking or spraying.
  • FIG. 1 is a schematic diagram of a terminal metal frame isolation strip in accordance with an embodiment of the present disclosure.
  • the terminal is a mobile phone. Only the rear case 11, the metal frame 12, and the spacer 13 on the metal frame 12 of the mobile phone are shown.
  • the number of the isolation strips 13 is two, which are used to isolate different antennas.
  • the number of the isolation bands may also be multiple, and the position and number thereof may be set according to the antenna requirements.
  • the width of the spacer 13 is 1.5 mm, and of course, it may be set to other widths, preferably 1 mm to 2 mm.
  • a plastic material can be used for filling at the separation belt 13.
  • FIG. 2 is a schematic diagram of a terminal metal frame antenna routing according to an embodiment of the present disclosure.
  • the antenna is located on the bottom metal frame of the terminal, and the antenna is a 2G/3G/4G full-band transceiver antenna.
  • the metal frame is set to different radiators by three slots (25, 26, 27), and the three slots are arranged on the same plane, all of which are linear, but the width is different, and the number, shape and width thereof are Debug based on antenna performance.
  • the slotting divides the metal frame into a first radiator 21 for realizing low frequency performance of the antenna, and a second radiator 22 for achieving medium and high frequency performance.
  • Also shown in Fig. 2 is an antenna feed point 23 and an antenna location 24, wherein the antenna feed point 23 and the antenna location 24 are electrically connected to the antenna radiator of the metal frame by metal domes on the terminal board.
  • the metal frame to which the 2G/3G/4G full-band transmitting and receiving antenna is attached has an electrical length limited by the width of the whole machine, and the electrical length of the existing metal frame cannot meet the requirement of the low-frequency resonant frequency;
  • the medium and high frequency is generated by the frequency doubling of the low frequency, and the performance requirement cannot be achieved.
  • slotting is provided on the metal frame, and on the other hand, the low frequency electrical length is extended to form the low frequency radiator 21 to meet the low frequency performance requirement; on the other hand, the medium high frequency radiator 22 is separately provided to meet the medium and high frequency performance. Therefore, the technical effect of the disclosed solution can reduce the space required for a single antenna while improving the radiation efficiency of the antenna and optimizing the antenna performance.
  • the metal frame is set to different radiators through three slots (35, 36, 37), and the three slots are disposed on different planes.
  • the three slots divide the metal frame into the first radiator 31 and the second radiator 32.
  • the first radiator 31 and the second radiator 32 are located on different planes of the metal frame of the terminal.
  • the slot 35 is located at the bottom of the terminal metal frame, and the slots 36 and 37 are located on the side of the terminal metal frame.
  • the first radiator 31 is used to achieve antenna intermediate frequency performance, and the second radiator 32 is used to achieve antenna high frequency performance.
  • Antenna feed point 33 and antenna location 34 are also shown in FIG.
  • the antenna feed point 33 and the antenna location 34 are electrically connected to the metal frame antenna radiator by metal domes on the terminal board.
  • FIG. 4 is a schematic diagram of an antenna of a metal backshell terminal in accordance with an embodiment of the present disclosure.
  • the terminal is a mobile phone
  • FIG. 4 shows the metal back shell 41 of the mobile phone.
  • the metal back shell 41 is divided into a top antenna and a bottom antenna by a slot 44 near the bottom and a spacer 45 near the top, wherein the antenna radiator 42 and the antenna radiator 43 are bottom antennas separated by the isolation strip, respectively.
  • the antenna radiator of the top antenna is a schematic diagram of an antenna of a metal backshell terminal in accordance with an embodiment of the present disclosure.
  • the terminal is a mobile phone
  • FIG. 4 shows the metal back shell 41 of the mobile phone.
  • the metal back shell 41 is divided into a top antenna and a bottom antenna by a slot 44 near the bottom and a spacer 45 near the top, wherein the antenna radiator 42 and the antenna radiator 43 are bottom antennas separated by the isolation strip, respectively.
  • the antenna radiator of the top antenna is a schematic diagram of an antenna of a
  • FIG. 5 is a schematic diagram of a metal backshell full-band antenna trace according to an embodiment of the present disclosure.
  • the metal back shell of the terminal is separated into two parts by a spacer 55 at a position close to the bottom, and the antenna is located at the bottom portion which is divided into 2G/3G/4G full-band transceiver antennas.
  • the metal backshell radiator is divided into different radiators by two slots (56, 57).
  • the number, position, shape and width of the slots are determined according to the performance of the antenna.
  • the slotted (56, 57) divides the metal back shell into the first radiator 51 and the second radiator 52, and the first radiator 51 is divided into the low frequency performance of the antenna, and the second radiator 52 is used to realize Medium and high frequency performance.
  • Also shown in Fig. 5 is an antenna feed point 53 and an antenna location 54, wherein the antenna feed point 53 and the antenna location 54 are electrically connected to the antenna radiator of the metal frame by metal domes on the terminal board.
  • the antenna includes a diversity antenna and an LTE B3/B7 MIMO antenna trace in accordance with an embodiment of the present disclosure.
  • the antenna includes a diversity antenna and an LTE B3/B7 MIMO antenna.
  • the diversity antenna includes the divided first radiator 61 and the second radiator 62.
  • the first radiator 61 of the diversity antenna is used to achieve low frequency intermediate frequency performance of the antenna, and the second radiator 62 of the diversity antenna is used to achieve high frequency performance.
  • Diversity antenna feed point 63 and diversity antenna location 64 are also shown.
  • the LTE B3/B7 MIMO antenna includes a first radiator 65 and a second radiator 66 that are separated.
  • the first radiator 65 is used to achieve antenna intermediate frequency performance
  • the second radiator 66 is used to achieve high frequency performance.
  • LTE B3/B7 MIMO antenna feed points 67 and antenna locations 68 are also shown.
  • the antenna feed point 63 and the antenna location 64 of the diversity antenna and the antenna feed point 67 and the antenna location 68 of the LTE B3/B7 MIMO antenna are both disposed on the PCB main board of the terminal, and the antenna radiation electrically connected to the metal frame through the metal dome on the main board Physically.
  • the frame metal is generally adopted, and 4*4mimo and WIFI2*2mimo are required, and the number of antennas is required. It is at least 3 more than the number of antennas of the conventional model. Because it is a double-sided folding screen, it is impossible to use the back space of the mobile phone as an antenna. Because the mobile phone is folded, the back space is just sandwiched between the two screens, and the antenna cannot be radiated. Therefore, it can only be realized by relying entirely on the metal frame, and the number of antennas of this model is large, so it is very difficult to arrange and realize the antenna.
  • the present disclosure also provides an embodiment as shown in FIGS. 7 and 8 in view of the problems caused by the metal frame antenna of the double-sided folding screen terminal.
  • FIG. 7 is a schematic diagram of a double-sided folding screen terminal in accordance with an embodiment of the present disclosure. It includes a first LCD screen and a first rear case 71 disposed on the first LCD screen, a battery, a PCB board, a first metal frame 72, and an isolation strip 73 disposed on the first metal frame; and a second LCD screen and A second rear case 74, a second metal frame 75, and a plastic bezel 76 are disposed on the second LCD screen.
  • the spacer strip 73 divides the first metal frame 72 into different metal bodies.
  • the middle metal body is set to a 2G/3G/4G full-band transmit and receive antenna.
  • the spacer strip 73 has a width of 2 mm and is filled with a plastic medium to isolate different antennas and reduce the influence between different antennas.
  • the metal frame of the terminal is arranged into different radiators through three slots, and the shape of the slot is irregular and the width is different, which is determined according to the performance of the antenna.
  • the three slots divide the metal body into the antenna first radiator 81 to realize the low frequency performance of the antenna; the second radiator 82 of the antenna realizes the high frequency performance in the antenna; 83 is the antenna feed point; 84 is the antenna location.
  • the antenna feed point 83 and the location 84 are electrically connected to the antenna radiator of the metal frame by metal domes on the main board.
  • the antenna is divided into radiators of different frequency bands by slotting the metal frame of the double-screen folding terminal, thereby reducing the space required for a single antenna, thereby The problem that the antenna layout is difficult due to the large number of dual-screen folding terminal antennas is solved, and the radiation efficiency of the antenna is improved, and the antenna performance is optimized.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne un terminal. Le terminal comprend une antenne. L'antenne est disposée sur un boîtier métallique du terminal. Des encoches sont ménagées sur le boîtier métallique, de manière à séparer de multiples éléments de rayonnement d'antenne de fréquences différentes. Dans la présente invention, des encoches sont disposées sur des cadres latéraux métalliques ou un boîtier arrière du terminal afin de diviser une antenne en de multiples éléments de rayonnement de fréquences différentes, ce qui permet de réduire l'espace requis par une seule antenne, tout en améliorant davantage l'efficacité du rayonnement d'antenne et en optimisant les performances de l'antenne.
PCT/CN2018/109339 2017-10-17 2018-10-08 Terminal WO2019076205A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710965721.X 2017-10-17
CN201710965721.XA CN108206329A (zh) 2017-10-17 2017-10-17 一种终端

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Publication Number Publication Date
WO2019076205A1 true WO2019076205A1 (fr) 2019-04-25

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CN108206329A (zh) * 2017-10-17 2018-06-26 中兴通讯股份有限公司 一种终端
CN109066105B (zh) * 2018-08-26 2024-05-17 昆山亿趣信息技术研究院有限公司 一种隔离度高的金属边框手机的天线系统
CN109728412B (zh) * 2018-12-25 2021-12-24 维沃移动通信有限公司 一种移动终端
CN111384581B (zh) * 2018-12-29 2021-09-21 Oppo广东移动通信有限公司 电子设备
CN110459860B (zh) * 2019-06-29 2021-09-14 RealMe重庆移动通信有限公司 后壳组件及电子设备
CN111029747A (zh) * 2019-12-25 2020-04-17 惠州Tcl移动通信有限公司 电子设备
CN112635974A (zh) * 2020-11-30 2021-04-09 Oppo广东移动通信有限公司 一种天线装置、控制方法及电子设备

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