WO2017197975A1 - Antenne et dispositif terminal - Google Patents

Antenne et dispositif terminal Download PDF

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Publication number
WO2017197975A1
WO2017197975A1 PCT/CN2017/077551 CN2017077551W WO2017197975A1 WO 2017197975 A1 WO2017197975 A1 WO 2017197975A1 CN 2017077551 W CN2017077551 W CN 2017077551W WO 2017197975 A1 WO2017197975 A1 WO 2017197975A1
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WO
WIPO (PCT)
Prior art keywords
radiator
antenna
dielectric substrate
disposed
feed line
Prior art date
Application number
PCT/CN2017/077551
Other languages
English (en)
Chinese (zh)
Inventor
谢一泓
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 WO2017197975A1 publication Critical patent/WO2017197975A1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • 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

Definitions

  • the present invention relates to a miniaturized antenna design technique in the field of communications, and in particular to an antenna and a terminal device.
  • WLAN Wireless Local Area Networks
  • the embodiment of the present invention is to provide an antenna and a terminal device, which can solve the problem that the product cannot be light and thin and small-sized in the prior art, and can effectively Reducing the thickness and size of the antenna greatly reduces production costs.
  • an embodiment of the present invention provides an antenna, the antenna including: a dielectric substrate, a feed line, a first radiator, a second radiator, and a grounding plate, wherein:
  • the first radiator is disposed on a first surface of the dielectric substrate; the second radiator is disposed on a second surface of the dielectric substrate;
  • a first end of the first radiator is connected to a first end of the feed line, and a second end of the first radiator is connected to a first end of the second radiator;
  • the second end of the second radiator is connected to the ground plate
  • the second end of the feed line is coupled to the dielectric substrate.
  • the antenna further includes: an impedance matching network disposed between the first radiator and the feeder, wherein:
  • a first end of the impedance matching network is coupled to a first end of the feed line, and a second end of the impedance matching network is coupled to a first end of the first radiator.
  • the dielectric substrate is further provided with a metal connection hole, wherein:
  • the second end of the first radiator is connected to the first end of the second radiator through the metal connection hole.
  • the impedance matching network includes an impedance transformation line, a lumped element network.
  • the dielectric substrate comprises a printed circuit board (PCB) motherboard.
  • PCB printed circuit board
  • the first radiator is coupled to the space to provide power to the second radiator.
  • the first radiator and the second radiator are routed
  • the structure is the same.
  • the materials of the first radiator and the second radiator include: copper, gold or silver.
  • the width between the traces of the first radiator is 0.2 mm to 1.5 mm;
  • the width between the traces of the second radiator is 0.2 mm to 1.5 mm.
  • the metal connecting hole has a radius of 0.5 mm to 0.75 mm.
  • the PCB motherboard has a thickness of 1 millimeter (mm).
  • an embodiment of the present invention provides a terminal device, including an antenna disposed on the terminal device, where: the antenna is the antenna described above.
  • the antenna and the terminal device provided by the embodiment of the present invention include: a dielectric substrate, a feeding wire, a first radiator, a second radiator, and a grounding plate, wherein the first radiator is disposed on the first surface of the dielectric substrate, The second radiator is disposed on the second surface of the dielectric substrate, the first end of the first radiator is connected to the first end of the feed line, and the second end of the first radiator is connected to the first end of the second radiator, The second end of the two radiators is connected to the ground plate, and the second end of the feed line is connected to the dielectric substrate; thus, the miniaturized antenna has the first radiator and the second radiator respectively disposed on different sides of the dielectric substrate At the same time, the first radiator and the second radiator are more connected together, so that the resonance of the high frequency band and the low frequency band can be provided at the same time, which can solve the problem that the prior art cannot realize the thinning and small size design of the product, and can effectively reduce the problem.
  • the thickness and size of the small antenna greatly reduces
  • FIG. 1 is a schematic structural diagram of an antenna according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another antenna according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of still another antenna according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a front structure of an antenna according to an embodiment of the present invention.
  • FIG. 5 is a schematic perspective structural diagram of an antenna according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic front structural diagram of another antenna according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a back surface of an antenna according to an embodiment of the present disclosure.
  • FIG. 8 is a simulation curve diagram of a reflection coefficient of a miniaturized antenna according to an embodiment of the present invention.
  • FIG. 9 is a diagram showing a gain direction of an antenna in 2.4 GHz according to an embodiment of the present invention.
  • FIG. 10 is a diagram showing a gain direction of an antenna in 5.5 GHz according to an embodiment of the present invention.
  • the miniaturized antenna includes: a dielectric substrate 1, a feed line 2, a first radiator 3, a second radiator 4, and a grounding plate 5, wherein:
  • the first radiator 3 is disposed on the first surface of the dielectric substrate 1, and the second radiator 4 is disposed on the second surface of the dielectric substrate 1.
  • the first end of the first radiator 3 is connected to the first end of the feed line 2, and the second end of the first radiator 3 is connected to the first end of the second radiator 4.
  • the second end of the second radiator 4 is connected to the ground plate 5.
  • the second end of the feed line 2 is connected to the dielectric substrate.
  • the antenna of the present invention may be a miniaturized dual-band antenna, which may be applied to a mobile communication terminal device; the first radiator and the second radiator may together constitute an antenna radiator of the miniaturized antenna, and the dielectric substrate may be fed through The electrical point feeds the antenna radiator, and the first radiator is mainly used to realize the resonance band of the high frequency band.
  • the second radiator can be used as a single trace to generate another high-band resonance band by coupling feeding with the first radiator.
  • the first radiator and The second radiator acts as a unitary radiator trace to achieve resonance in the low frequency band.
  • An antenna provided by an embodiment of the present invention includes: a dielectric substrate, a feeder, and a first a radiator, a second radiator and a ground plate, the first radiator is disposed on the first surface of the dielectric substrate, and the second radiator is disposed on the second surface of the dielectric substrate, the first end of the first radiator and the feeder The first end is connected, the second end of the first radiator is connected to the first end of the second radiator, the second end of the second radiator is connected to the ground plate, and the second end of the feed line is connected to the dielectric substrate;
  • the miniaturized antenna respectively disposes the first radiator and the second radiator on two different faces of the dielectric substrate, and the first radiator and the second radiator are more connected together, thereby simultaneously providing a high frequency band and The resonance of the low frequency band can solve the problem that the prior art cannot realize the thinning and small size design of the product, can effectively reduce the thickness and size of the antenna, and greatly reduce the production cost.
  • the antenna further includes: an impedance matching network 6, wherein:
  • the impedance matching network 6 is disposed between the first radiator 3 and the feed line 2.
  • the first end of the impedance matching network 6 is connected to the first end of the feed line 2, and the second end of the impedance matching network 6 is connected to the first end of the first radiator 3.
  • the impedance matching network 6 may comprise: impedance transform lines, lumped element networks, and the like.
  • the dielectric substrate 1 is further provided with a metal connection hole 7, wherein:
  • the second end of the first radiator 3 is connected to the first end of the second radiator 4 through a metal connection hole 7.
  • the first end of the first radiator may be the beginning of the first radiator, and the second end of the first radiator may be the end of the first radiator; meanwhile, the second radiator The first end may be the beginning of the second radiator, and the end of the second radiator may be the end of the second radiator, that is, the beginning of the first radiator is connected to the impedance matching network, and the RF output on the dielectric substrate is fed through
  • the electric wire is connected to the beginning of the first radiator through the impedance matching network to feed the first radiator; wherein the impedance matching network acts to adjust the impedance of the antenna radiator, and the impedance matching network can generally be an L-type or a ⁇ -type LC.
  • the impedance matching network may be an LC matching network consisting of a parallel inductor L and a series capacitor C, one end of which is connected to the first radiator Connected, the other end of the capacitor is connected to one end of the inductor, the other end of the inductor is grounded, and one end of the inductor is also connected to the feed line; in practical applications, the dual-frequency WLAN antenna, ie, the first radiator and the second, can be adjusted by changing the LC device value. The standing wave of the radiator finally makes the dual-band WLAN antenna better matched.
  • the end of the first radiator is connected to the metal connection hole, the beginning of the second radiator is also connected to the metal connection hole, and the end of the second radiator is connected to the ground plate.
  • the metal connection holes may be respectively connected to the end of the first radiator and the beginning of the second radiator, but the metal connection hole is not limited to be disposed at the position. Actual design requirements to determine the specific location.
  • the dielectric substrate 1 includes a PCB main board, and the thickness of the PCB main board is 1 to 2 mm.
  • the first radiator may be disposed on a front surface of the PCB main board, and the second radiator may be disposed on a back surface of the PCB main board.
  • the first radiator may be any shape of the radiation sheet etched on the front surface of the PCB main board
  • the second radiator may be any shape of the radiation sheet etched on the back surface of the main board, and the first radiator and the second radiator are taken away.
  • the line structure can be the same or different.
  • the metal connection hole is a metal via hole that opens the dielectric substrate (PCB main board) 1 at the end of the first radiator and is connected to the beginning of the second radiator 4 on the back surface of the dielectric substrate 1. Its main function is to connect the first radiator 3 with The second radiators 4 are connected to form a whole body to achieve a longer antenna equivalent length. In this case, the resonance of the 2.4G frequency band of the WLAN antenna can be realized. When the first radiator and the second radiator are used as a single line, the first Both the radiator and the second radiator can generate resonance in the 5G band.
  • the second radiator Since the first radiator supplies the feed through the feed line, the second radiator is fed by the first radiator and the space, because the first radiator and the second radiator are fed differently, so the second radiation
  • the resonance generated by the body does not completely coincide with the high-frequency resonance band generated by the first radiator, but is interlaced with the resonance band of the first radiator, thereby widening the operating bandwidth of the high frequency band and meeting the broadband design requirements of the high frequency band.
  • the materials of the first radiator and the second radiator include: copper, gold or silver. Other in the present invention In an embodiment, the material of the first radiator and the second radiator may be copper, which may further reduce the production cost.
  • the width between the traces of the first radiator is 0.2 mm to 1.5 mm
  • the width between the traces of the second radiator is 0.2 mm to 1.5 mm
  • the radius of the metal connection holes may be 0.5 mm to 0.75 mm
  • the height of the connection hole may be equal to the thickness of the PCB main board, and may preferably be 1 mm.
  • FIG. 4 a front view of a miniaturized dual-frequency antenna in a specific embodiment of the present invention is provided, and a clearance of a primary antenna of a primary antenna and a second radiator of a diversity antenna are left at both ends of the PCB main board.
  • the grounding plate is metal copper distributed on all sides of the PCB main board except for the antenna clearance.
  • FIG. 5 a perspective view of a miniaturized dual-frequency antenna according to a specific embodiment of the present invention may be adopted.
  • the first radiator and the second radiator may be formed as a whole through metal connection holes to achieve a longer antenna equivalent length.
  • FIG. 6 is a schematic diagram showing the front structure of a miniaturized dual-band antenna according to a specific embodiment of the present invention.
  • the first radiator can generate a resonant band operating in a WLAN 5G operating band, and the first radiation in a specific product antenna design.
  • the shape of the metal copper meander line of the body is arbitrary, and the resonant band can be made in the operating band of the WLAN 5G by adjusting its length.
  • FIG. 7 is a schematic diagram showing the back structure of a miniaturized dual-band antenna according to a specific embodiment of the present invention.
  • the second radiator can generate another resonant band operating in the WLAN 5G operating band, and is second in the specific product antenna design.
  • the shape of the metal copper meander line of the radiator may also be arbitrary, and the second radiator may be interlaced with the resonance band generated by the first radiator to broaden the bandwidth and realize the operation of the WLAN 5G full frequency band; meanwhile, the second radiator It can be connected with the first radiator to form a whole, and a complete loop antenna is used to realize the resonance of the 2.4G WLAN working frequency band; in FIGS. 4-7, the schematic second radiator is substantially consistent with the trace of the first radiator.
  • the traces of the two may be any antenna form such as a monopole or a ring; in practical applications, the traces of the first radiator and the second radiator may be different, as long as adjustment
  • the shape and length of the two can be made to resonate within the WLAN operating band, and the standing wave of the antenna can be adjusted by adjusting the mutual position between the two.
  • the reflection coefficient curve can be obtained by simulating the miniaturized dual-frequency WLAN antenna in the present invention by using HFSS simulation software, and the reflection coefficient simulation curve can be as shown in FIG. 8.
  • the size of the PCB main board can be 90mm*50mm*1mm
  • the antenna clearance of the dual-frequency WLAN antenna (first radiator and second radiator) is 8mm*5mm
  • the width of all metal copper meandering lines Both are 0.5mm
  • the radius of the metal connection hole is 0.25mm
  • the frequency range of the reflection system below -10 dB(dB) is 2.4GHz-2.52GHz and 5.16GHz-5.84GHz. Covers the operating frequency range of WLAN 2.4G and 5G, and the radiation efficiency of the antenna is above 40% in both bands.
  • the gain pattern of the dual-band miniaturized WLAN antenna at 2.45 GHz in the specific embodiment is shown in FIG. 9, and the gain direction of the dual-band miniaturized WLAN antenna in the specific embodiment is shown in FIG. It can be obtained that after the antenna is miniaturized by adopting the design idea of the present invention, the gain and radiation efficiency of the antenna can be ensured while reducing the size of the antenna.
  • the invention engraves the antenna radiator of any shape on the front and back sides of the PCB main board, and connects the two antenna radiators together by the metal connecting holes, and the three form an antenna as a whole, which can realize longer in the limited antenna clearance.
  • the equivalent length of the antenna realizes the resonance of the low-frequency operating band; and the high-frequency resonant bands generated by the two radiators are skillfully used, but not completely coincident, and the bandwidth of the high-frequency operating band is widened by two resonant bands.
  • An antenna provided by an embodiment of the present invention includes: a dielectric substrate, a feed line, a first radiator, a second radiator, and a ground plate, wherein the first radiator is disposed on the first surface of the dielectric substrate, and the second radiator Provided on the second surface of the dielectric substrate, the first end of the first radiator is connected to the first end of the feed line, and the second end of the first radiator is connected to the first end of the second radiator, the second radiator The second end is connected to the ground plate, and the second end of the feed line is connected to the dielectric substrate; thus, the miniaturized antenna has the first radiator and the second radiator respectively disposed on different sides of the dielectric substrate, and at the same time A radiator and a second radiator are more connected together, thereby simultaneously providing resonance in a high frequency band and a low frequency band, which can solve the problem that the product cannot be thinned and small in the prior art.
  • the design problem can effectively reduce the thickness and size of the antenna, which greatly reduces the production cost.
  • An embodiment of the present invention provides a terminal device, where the terminal device includes an antenna disposed on the terminal device, where the antenna is an antenna provided in the embodiments corresponding to FIGS.
  • the terminal device provided by the embodiment of the present invention is provided with a miniaturized antenna
  • the miniaturized antenna includes: a dielectric substrate, a feeding wire, a first radiator, a second radiator, and a grounding plate, and the first radiator is disposed On the first surface of the dielectric substrate, the second radiator is disposed on the second surface of the dielectric substrate, the first end of the first radiator is connected to the first end of the feed line, and the second end of the first radiator The first end of the second radiator is connected, the second end of the second radiator is connected to the ground plate, and the second end of the feed line is connected to the dielectric substrate; thus, the miniaturized antenna separates the first radiator and the second radiator respectively
  • the two surfaces are different on the dielectric substrate, and the first radiator and the second radiator are more connected together, so that the resonance of the high frequency band and the low frequency band can be provided at the same time, which can solve the problem that the product cannot be light and thin in the prior art.
  • the problem of small size design can effectively reduce the thickness and size
  • the antenna in the embodiment of the present invention includes: a dielectric substrate, a feeding wire, a first radiator, a second radiator, and a grounding plate.
  • the first radiator is disposed on the first surface of the dielectric substrate, and the second radiator is disposed on the dielectric substrate.
  • the second end of the first radiator is connected to the first end of the feed line, the second end of the first radiator is connected to the first end of the second radiator, and the second end of the second radiator Connected to the ground plate, the second end of the feed line is connected to the dielectric substrate; thus, the miniaturized antenna has the first radiator and the second radiator respectively disposed on different faces of the dielectric substrate, and the first radiator and The second radiators are more connected together, thereby providing resonance in both the high and low frequency bands.

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Abstract

L'invention concerne une antenne. L'antenne comprend : un substrat diélectrique, une ligne d'alimentation, un premier radiateur, un second radiateur et une plaque de mise à la terre, le premier radiateur étant disposé sur une première face du substrat diélectrique ; le second radiateur est disposé sur une seconde face du substrat diélectrique ; une première extrémité du premier radiateur est connectée à une première extrémité de la ligne d'alimentation, et une seconde extrémité du premier radiateur est connectée à une première extrémité du second radiateur ; une seconde extrémité du second radiateur est connectée à la plaque de mise à la terre ; et une seconde extrémité de la ligne d'alimentation est connectée au substrat diélectrique. L'invention concerne également un dispositif terminal.
PCT/CN2017/077551 2016-05-20 2017-03-21 Antenne et dispositif terminal WO2017197975A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610341478.XA CN107403992A (zh) 2016-05-20 2016-05-20 一种天线和终端设备
CN201610341478.X 2016-05-20

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Publication Number Publication Date
WO2017197975A1 true WO2017197975A1 (fr) 2017-11-23

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WO (1) WO2017197975A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111342223A (zh) * 2020-03-06 2020-06-26 内蒙古显鸿科技股份有限公司 一种地埋天线装置及通信系统
CN112164872A (zh) * 2020-08-31 2021-01-01 西安朗普达通信科技有限公司 一种5g多频天线
CN114389020A (zh) * 2020-10-22 2022-04-22 广达电脑股份有限公司 天线结构
CN115458897A (zh) * 2022-09-30 2022-12-09 杭州泛利科技有限公司 应用于sip射频模组的小型高性能全向天线

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CN109273843B (zh) * 2018-09-19 2020-12-25 深圳市泰衡诺科技有限公司 天线及移动终端
CN111490336B (zh) * 2020-05-07 2021-11-02 环鸿电子（昆山）有限公司 适用于多频的微型天线结构
CN112310641B (zh) * 2020-09-02 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 天线模组及应用该天线模组的终端设备
CN112038752B (zh) * 2020-09-02 2023-10-03 惠州Tcl移动通信有限公司 一种低频天线组件及其移动终端
CN114389017B (zh) * 2020-10-20 2023-09-29 华为技术有限公司 一种天线及终端
CN113300100A (zh) * 2021-05-25 2021-08-24 内蒙古显鸿科技股份有限公司 一种可调谐微带天线装置

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CN102044743A (zh) * 2009-10-15 2011-05-04 智易科技股份有限公司 单频天线
CN103943953A (zh) * 2014-03-26 2014-07-23 中国科学院长春光学精密机械与物理研究所 小型l-t枝节双带阻平面超宽带天线
CN104022358A (zh) * 2014-06-23 2014-09-03 北京邮电大学 小型化多频段天线
CN104092007A (zh) * 2014-06-27 2014-10-08 华南理工大学 一种基于倾斜振子的宽带圆极化全向天线

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CN102044743A (zh) * 2009-10-15 2011-05-04 智易科技股份有限公司 单频天线
CN103943953A (zh) * 2014-03-26 2014-07-23 中国科学院长春光学精密机械与物理研究所 小型l-t枝节双带阻平面超宽带天线
CN104022358A (zh) * 2014-06-23 2014-09-03 北京邮电大学 小型化多频段天线
CN104092007A (zh) * 2014-06-27 2014-10-08 华南理工大学 一种基于倾斜振子的宽带圆极化全向天线

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111342223A (zh) * 2020-03-06 2020-06-26 内蒙古显鸿科技股份有限公司 一种地埋天线装置及通信系统
CN111342223B (zh) * 2020-03-06 2023-06-23 内蒙古显鸿科技股份有限公司 一种地埋天线装置及通信系统
CN112164872A (zh) * 2020-08-31 2021-01-01 西安朗普达通信科技有限公司 一种5g多频天线
CN114389020A (zh) * 2020-10-22 2022-04-22 广达电脑股份有限公司 天线结构
CN115458897A (zh) * 2022-09-30 2022-12-09 杭州泛利科技有限公司 应用于sip射频模组的小型高性能全向天线
CN115458897B (zh) * 2022-09-30 2024-05-07 杭州泛利科技有限公司 应用于sip射频模组的小型高性能全向天线

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