WO2021139473A1 - 天线组件和移动终端 - Google Patents

天线组件和移动终端 Download PDF

Info

Publication number
WO2021139473A1
WO2021139473A1 PCT/CN2020/135115 CN2020135115W WO2021139473A1 WO 2021139473 A1 WO2021139473 A1 WO 2021139473A1 CN 2020135115 W CN2020135115 W CN 2020135115W WO 2021139473 A1 WO2021139473 A1 WO 2021139473A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna assembly
feeder
grounding portion
feeder line
gap
Prior art date
Application number
PCT/CN2020/135115
Other languages
English (en)
French (fr)
Inventor
周圆
余冬
王汉阳
侯猛
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US17/791,508 priority Critical patent/US12080959B2/en
Priority to EP20912301.7A priority patent/EP4075594A4/en
Publication of WO2021139473A1 publication Critical patent/WO2021139473A1/zh

Links

Images

Classifications

    • 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
    • H01Q1/12—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
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • 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
    • 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
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • 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
    • H01Q5/10—Resonant 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
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • 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
    • 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
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Definitions

  • This application relates to the field of antenna technology, and in particular to an antenna assembly and a mobile terminal.
  • the technical solution of the present application provides an antenna assembly and a mobile terminal, which can implement two antennas in the same radiation structure, thereby saving the space occupied by the antennas.
  • the first feeder line at least part of the first feeder line is located in the gap or at a position directly opposite the gap, the first end of the first feeder line is used to feed the first grounding part, and the second end of the first feeder line is electrically Connected to the first grounding part;
  • the first feeder line and the second feeder line perpendicularly cross the symmetry plane of the slot.
  • the extension path of the slit is U-shaped.
  • the first stub and the second stub are electrically connected to the first grounding portion, and the first stub is opposite to the first end of the first feeder, so that the first end of the first feeder To feed power to the first stub, the second end of the first feeder is electrically connected to the second stub.
  • the first branch and the second branch are respectively located on both sides of the symmetry plane, and the first branch and the second branch form a symmetric structure with respect to the symmetry plane.
  • the first branch includes a first branch arm and a second branch arm, the second branch arm is connected to the first ground part through the first branch arm, and the length direction of the second branch arm is perpendicular to The symmetry plane of the gap;
  • the second branch includes the third branch arm and the fourth branch arm, the fourth branch arm is connected to the first ground part through the third branch arm, and the length direction of the fourth branch arm is perpendicular to the symmetry plane of the slit .
  • the first branch is electrically connected to the first ground part through the first branch inductance
  • the second branch is electrically connected to the first ground part through the second branch inductance
  • a first matching inductor is connected in series on the first feeder line
  • a second matching inductor is connected in series on the second feeder line.
  • both ends of the second matching capacitor are electrically connected to the first grounding portion and the second grounding portion, respectively.
  • the technical solution of the present application also provides a mobile terminal, including: a radio frequency unit and the above-mentioned antenna assembly;
  • a radiating structure is formed by setting a gap between the first grounding part and the second grounding part, and the first feeding line is provided to feed power from the first grounding part to the first grounding part.
  • the first feeding line is provided to feed power from the first grounding part to the first grounding part.
  • the second feeder to feed power from one of the first grounding part and the second grounding part to the other, and excite at the gap to realize the other.
  • FIG. 2 is a schematic diagram of the three-dimensional structure of the antenna assembly in FIG. 1;
  • Fig. 3 is a schematic diagram of a cross-sectional structure in the AA' direction in Fig. 1;
  • Fig. 4 is a schematic diagram of a cross-sectional structure in the direction of BB' in Fig. 1;
  • FIG. 5 is a schematic structural diagram of another antenna assembly in an embodiment of the application.
  • Fig. 6 is a top view of another antenna assembly in an embodiment of the application.
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the antenna assembly in FIG. 6;
  • Fig. 8 is a schematic diagram of a cross-sectional structure in the direction of CC' in Fig. 6;
  • Fig. 9 is a schematic diagram of another cross-sectional structure in the direction of CC' in Fig. 6;
  • Fig. 10 is a schematic diagram of a cross-sectional structure in the DD' direction in Fig. 6;
  • Fig. 11 is a schematic diagram of a cross-sectional structure in the DD' direction in Fig. 6;
  • Fig. 12 is an equivalent circuit diagram corresponding to Fig. 3, Fig. 8 or Fig. 9;
  • Fig. 13 is an equivalent circuit diagram corresponding to Fig. 4 or Fig. 10;
  • FIG. 14 is a top view of another antenna assembly in an embodiment of the application.
  • Fig. 15 is a perspective schematic view of a part of the structure in Fig. 14;
  • Fig. 16 is a simulation diagram of an S parameter of the antenna assembly shown in Fig. 14;
  • Fig. 17 is an efficiency simulation diagram of the antenna assembly shown in Fig. 14;
  • FIG. 18 is a schematic diagram of an electric field distribution when the antenna assembly shown in FIG. 14 works at 2.97 GHz under the excitation of the second feeder;
  • Fig. 19 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 is excited by the second feeder and works at 4.57 GHz;
  • FIG. 20 is a schematic diagram of an electric field distribution when the antenna assembly shown in FIG. 14 works at 1.75 GHz under the excitation of the first feeder;
  • 21 is a schematic diagram of an electric field distribution when the antenna assembly shown in FIG. 14 is excited by the first feeder and works at 4.5 GHz;
  • Fig. 22 is a directional diagram of the antenna assembly shown in Fig. 14 operating at 4.57 GHz under the excitation of the second feeder line;
  • Fig. 23 is a directional diagram of the antenna assembly shown in Fig. 14 when the antenna assembly is excited by the first feeder and works at 4.5 GHz;
  • Fig. 24 is another S parameter simulation diagram of the antenna assembly shown in Fig. 14;
  • FIG. 25 is another efficiency simulation diagram of the antenna assembly shown in FIG. 14;
  • Fig. 26 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 works at 1.65 GHz under the excitation of the second feeder line;
  • Fig. 27 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 is excited by a second feeder and works at 3.3 GHz;
  • Fig. 28 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 works at 1.7 GHz under the excitation of the first feeder;
  • Fig. 29 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 works at 4.8 GHz under the excitation of the first feeder line;
  • Fig. 30 is a directional diagram of the antenna assembly shown in Fig. 14 operating at 1.65 GHz under the excitation of the second feeder line;
  • Fig. 31 is a directional diagram of the antenna assembly shown in Fig. 14 when working at 1.7 GHz under the excitation of the first feeder;
  • FIG. 32 is a top view of another antenna assembly in an embodiment of the application.
  • Fig. 33 is a perspective schematic view of a part of the structure in Fig. 32;
  • Fig. 34 is a simulation diagram of an S parameter of the antenna assembly shown in Fig. 32;
  • Fig. 35 is an efficiency simulation diagram of the antenna assembly shown in Fig. 32;
  • Fig. 36 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 32 operates at 1.66 GHz under the excitation of the second feeder line;
  • Fig. 37 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 32 is excited by the second feeder and works at 3.17 GHz;
  • Fig. 38 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 32 works at 1.64 GHz under the excitation of the first feeder line;
  • Fig. 39 is a schematic diagram of an electric field distribution of the antenna assembly shown in Fig. 32 when working at 4.8 GHz under the excitation of the first feeder;
  • Fig. 40 is a directional diagram of the antenna assembly shown in Fig. 32 when working at 1.66 GHz under the excitation of the second feeder line;
  • Fig. 41 is a directivity diagram of the antenna assembly shown in Fig. 32 when the antenna assembly is excited by the first feeder and works at 1.64 GHz.
  • FIG. 1 is a top view of an antenna assembly in an embodiment of this application
  • FIG. 2 is a schematic diagram of a three-dimensional structure of the antenna assembly in FIG. 1
  • FIG. 3 is a cross-section along the AA' direction in FIG.
  • Fig. 4 is a schematic structural diagram of a cross-sectional structure in the direction of BB' in Fig. 1.
  • An embodiment of the present application provides an antenna assembly including: a first grounding portion 11 and a second grounding portion 12, and a first grounding portion 11 and A gap 10 is formed between the second grounding portion 12, and the first grounding portion 11 and the second grounding portion 12 are separated by the gap 10, that is, the gap 10 has openings at both ends of its extension path; the first feeder 21 (in Figure 2 (Not shown), at least part of the first feeder line 21 is located in the slot 10 or at a position directly opposite to the slot 10. In the structure shown in FIGS. 1 to 4, only a part of the first feeder line 21 is located in the slot. For example, the first feeder line 21 is located above the slot 10 in FIG.
  • the part of the first feeder line 21 is facing the slot 10, and the first end 211 of the first feeder line 21 is used for The first ground part 11 is fed, and the second end 212 of the first feeder line 21 is electrically connected to the first ground part 11; the second feeder line 22 (not shown in FIG. 2), at least part of the second feeder line 22 is located In the slot 10 or at a position directly opposite to the slot 10, the first end 221 of the second feeder 22 is used to feed one of the first grounding portion 11 and the second grounding portion 12, and the first end 221 of the second feeder 22
  • the two ends 222 are electrically connected to the other of the first grounding portion 11 and the second grounding portion 12.
  • the first end 221 of the second feed line 22 is connected to the The first grounding portion 11 is directly opposite and is used to feed the first grounding portion 11, and the second end 222 of the second feeding line 22 is electrically connected to the second grounding portion 12, that is, the second feeding line 22 is used to realize the The ground portion 11 feeds power in the direction of the second ground portion 12.
  • the antenna assembly in the embodiment of the present application is based on an open-slot antenna (or called a slot antenna) radiating structure with two ends open, and two types of feeders are provided in the same radiating structure, one of which is a feeder It is realized by the first feeder 21, that is, fed from the first ground 11 to the same first ground 11; the other is realized by the second feeder 22, that is, fed from one ground to the same first ground 11; Another ground part.
  • the first end 211 of the first feeder 21 is facing a part of the first ground portion 11, and is fed through a microstrip line.
  • the first feeding line 21 can be called common mode feeding
  • the feeding mode of the second feeding line 22 can be a differential mode feeding
  • the radiation structure of the slot antenna can work at 1/2 wavelength (1/2 ⁇ ), 1 times the wavelength (1 ⁇ ), 3/2 times the wavelength (3/2 ⁇ ), and 2 times the wavelength (2 ⁇ ) four modes, ⁇ is the wavelength.
  • the power feeding through the first feeding line 21 can be Excite the half-wavelength mode and its frequency doubling mode of the slot antenna, for example, two radiation modes of 1/2 wavelength and 3/2 times the wavelength, and the double-wavelength mode and its multiples of the slot antenna can be excited through the second feeder 22 Frequency mode, for example, two radiation modes of 1 times the wavelength and 2 times the wavelength.
  • the two radiation modes excited by the first feeder 21 can be used to realize the function of an antenna separately, and the two radiation modes excited by the second feeder 22 can be used to achieve the function of an antenna.
  • the two radiation modes can be used to realize the function of another antenna alone.
  • the radiation patterns excited by the two feeds can cover the same frequency band or different frequency bands, with good isolation and complementary directional patterns. Through the two feeds on the same radiating structure, two independent antennas can be realized.
  • the embodiment of the present application does not limit the structure of the slot 10 of the antenna assembly.
  • the slot of the antenna assembly may have an asymmetric structure.
  • the position of each feeder It can also be set to an asymmetrical position.
  • a radiating structure is formed by setting a gap between the first grounding portion and the second grounding portion, and the first feeding line is provided to feed power from the first grounding portion to the first grounding portion, and Excitation is performed at the gap to realize an antenna, and a second feeder line is set to feed power from one of the first grounding portion and the second grounding portion to the other, and excitation is performed at the gap to realize another antenna, namely Based on the same radiating structure, it is excited by two different feeding modes to realize the function of two antennas, thereby saving the space occupied by the antennas.
  • FIG. 5 is a schematic structural diagram of another antenna assembly in an embodiment of the present application, and the slot 10 is a symmetrical structure.
  • the slit 10 is a symmetrical structure means that the structure formed by the slit 10 has a symmetry plane L, and the structures of the slits 10 on both sides of the symmetry plane L are mirror images of each other, and the extension path of the slit 10 passes through the symmetry plane L.
  • the first grounding portion 11 and the second grounding portion 12 are plate-shaped structures, and a gap 10 is formed on the plane where the first grounding portion 11 and the second grounding portion 12 are located.
  • FIG. 1 to 4 the structure shown in FIGS. 1 to 4
  • the first grounding portion 11 and the second grounding portion 12 are both bent plate-like structures, and a bent gap is formed between the first grounding portion 11 and the second grounding portion 12 10.
  • the first feeder line and the second feeder line are not shown in FIG. 5. Understandably, in other achievable embodiments, a more complicated gap structure can be formed between the first grounding portion and the second grounding portion, and it is only necessary to ensure that the gap is a symmetric structure.
  • the slot 10 with a symmetrical structure cooperates with the above two kinds of feeds, so that the two excited antennas have higher isolation.
  • the two antennas excited by the above two types of feeds can be adjusted to offset the adverse effects caused by the asymmetry of the gap to achieve higher isolation.
  • Two antennas in degrees.
  • the embodiment of the present application does not limit the shape of the extension path of the slot 10.
  • the extension path of the slot may also be a "one" shape or other symmetrical shapes.
  • the first feeder line 21 and the second feeder line 22 cross the symmetry plane L of the slot 10.
  • the first feeder line 21 is in the slot 10 or is directly opposite to the slot 10.
  • the part perpendicular to the second feed line 22 in the slot 10 or the part facing the slot 10, and the insulation crosses between the two, and the crossing position is located on the symmetry plane of the slot 10, which can further improve the isolation between the two antennas. .
  • the part of the first feeder 21 located in the slot 10 or located directly opposite to the slot 10 is located at the symmetry plane L of the slot 10 and extends along the symmetry plane L of the slot 10. That is, the first feeder 21 is used to further improve the isolation between the two antennas.
  • the extension path of the slit 10 is U-shaped.
  • the first grounding portion 11 and the second grounding portion 12 are both plate-shaped structures and located on the same plane. On this plane, the first grounding portion 11 is U-shaped.
  • the first end 211 of the first feeding line 21 is located above the first feeding arm, so as to feed power to the first feeding arm ,
  • the first feeder line 21 crosses the middle part of the extension path of the slot 10 and extends from the first end 211 to the second end 212.
  • the second end 212 of the first feeder line 21 is located above the second feeder arm and is electrically connected to The second feeder arm; the first end 221 of the second feeder 22 is located below the connection part of the first ground 11 to facilitate feeding to the first ground 11, the second feeder 22 crosses from the first end 221
  • the slot 10 extends to the second end 222, and the second end 222 of the second feeder 22 is located below the second grounding portion 12 and is electrically connected to the second grounding portion 12.
  • FIG. 6 is a top view of another antenna assembly in an embodiment of this application
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the antenna assembly in FIG. 6,
  • FIG. 8 is CC' in FIG.
  • Fig. 9 is a schematic cross-sectional structure diagram in the CC' direction in Fig. 6
  • Fig. 10 is a cross-sectional structure diagram in the DD’ direction in Fig. 6,
  • Fig. 11 is a cross-sectional structure diagram in the DD’ direction in Fig.
  • a schematic cross-sectional structure diagram of the antenna assembly further includes: a first stub 101 and a second stub 102 electrically connected to the first ground portion 11, the first stub 101 is opposite to the first end 211 of the first feeder 21, In order to make the first end 211 of the first feeder line 21 feed the first stub 101, the second end 212 of the first feeder line 21 is electrically connected to the second stub 102.
  • the first feeder line 21 is located outside the slot 10, but is located at a position directly opposite to the slot 10.
  • the first feeder line 21 is located in the slot 10.
  • the second feeder 22 is located in the slot 10, as long as one end can be fed to the first ground portion 11, and the other end is electrically connected to the second ground portion 12. It is understandable ,
  • the structure shown in FIG. 6 and FIG. 7 can also use the structure shown in FIG. 4 to realize the feeding of the second feeder line 22.
  • power feeding from the second ground portion 12 to the first ground portion 11 can also be realized through the second feeder line 22.
  • the first branch 101 and the second branch 102 are respectively located on both sides of the symmetry plane L, and the first branch 101 and the second branch 102 are symmetrical with respect to the symmetry plane L Structure to further improve the isolation of the two antennas.
  • the first branch 101 includes a first branch arm 01 and a second branch arm 02, and the second branch arm 02 is connected to the first ground part through the first branch arm 01 11.
  • the length direction of the second branch arm 02 is perpendicular to the symmetry plane L of the gap 10;
  • the second branch 102 includes a third branch arm 03 and a fourth branch arm 04, and the fourth branch arm 04 is connected to the third branch arm 03 The first ground part 11.
  • the first branch arm 01 and the second branch arm 02 form an "L"-shaped first branch 101, and the third branch arm 03 and the fourth branch arm 04 form an "L"-shaped second branch 102.
  • the electric wire 21 cooperates with the symmetrically arranged first stub 101 and the second stub 102 to realize power feeding, so as to further improve the isolation of the two electric wires.
  • the first stub 101 is electrically connected to the first ground portion 11 through the first stub inductance
  • the second stub 102 is electrically connected to the first ground portion 11 through the second stub inductance
  • the first stub inductance The inductance of the second stub can be used to adjust the impedance matching of the antenna.
  • the first stub 101 can also be directly connected to the first ground 11, and the second stub 102 can also be directly connected to the second ground 12.
  • FIG. 12 is an equivalent circuit diagram corresponding to FIG. 3, FIG. 8 or FIG. 9, and FIG. 13 is an equivalent circuit diagram corresponding to FIG. 4 or FIG.
  • a first matching inductor L1 is connected in series to the feeding line 21, that is, the first end 211 of the first feeding line 21 is electrically connected to the second end 212 through the first matching inductance L1; and/or, the second feeding line 22 is connected in series to the second end 212;
  • the two matching inductors L2, that is, the first end 221 of the second feed line 22 is electrically connected to the second end 222 through the second matching inductor L2.
  • the antenna assembly further includes: a first matching capacitor C1, both ends of the first matching capacitor C1 are electrically connected to the first end 211 of the first feeder 21 and the first ground, respectively. Section 11; and/or, the second matching capacitor C2, both ends of the second matching capacitor C2 are electrically connected to the first grounding portion 11 and the second grounding portion 12, respectively.
  • first matching inductor L1, second matching inductor L2, first matching capacitor C1, and second matching capacitor C2 are used to achieve impedance matching of the antenna, which can be specifically set according to the application and environment to adjust each resonance frequency.
  • the embodiment of the present application does not limit the specific impedance matching form in the antenna assembly. Impedance matching can be achieved by any one or any combination of the above four matching devices, or impedance matching can be achieved by other forms. .
  • FIG. 14 is a top view of another antenna assembly in an embodiment of this application
  • FIG. 15 is a three-dimensional schematic diagram of a part of the structure in FIG. 14, and
  • FIG. 16 is the antenna assembly shown in FIG. 14.
  • Fig. 17 is an efficiency simulation diagram of the antenna assembly shown in Fig. 14,
  • Fig. 18 is an electric field distribution of the antenna assembly shown in Fig. 14 when it works at 2.97GHz under the excitation of the second feeder.
  • Schematic diagram Figure 19 is a schematic diagram of an electric field distribution when the antenna assembly shown in Figure 14 works at 4.57GHz under the excitation of the second feeder
  • Figure 20 is the antenna assembly shown in Figure 14 works at 1.75GHz under the excitation of the first feeder Fig.
  • Fig. 21 is a schematic diagram of electric field distribution when the antenna assembly shown in Fig. 14 works at 4.5 GHz under the excitation of the first feeder
  • Fig. 22 is a schematic diagram of the antenna assembly shown in Fig. 14 in the second feeder.
  • Fig. 23 is a pattern of the antenna assembly shown in Fig. 14 operating at 4.5GHz under the excitation of the first feeder.
  • the first grounding portion 11 and the second grounding portion 12 are flat-plate structures with the same thickness, and are located on the same plane, forming between them
  • the first ground portion 11 is provided with a first stub 101 and a second stub 102.
  • the first feeder wire feeds from the first stub 101 to the second stub 102, and the second feeder wire feeds from the second grounding portion 12 to the first stub.
  • the ground 11 feeds power.
  • the second feeder line is correspondingly provided with a second matching inductance of 3nH and a second matching capacitor of 1pF
  • the first feeder line is correspondingly provided with a first matching inductance of 3nH, wherein the first matching inductance, the second matching inductance and the first matching inductance
  • the ellipse is the electric field direction change area O. In the electric field direction change area O, the electric field direction in the antenna assembly slot changes to the opposite direction, and the electric field direction is reversed once.
  • CM refers to the curve corresponding to the excitation of the first feeder
  • DM refers to the curve corresponding to the excitation of the second feeder.
  • the first feeder excites 1/2 ⁇ mode and In the 3/2 ⁇ mode, the second feeder excites 1 ⁇ mode and 2 ⁇ mode in the 1 ⁇ 5GHz frequency band.
  • the 3/2 ⁇ and 2 ⁇ modes are at the same frequency and can cover the N79 frequency band at the same time.
  • the isolation of the two antennas can be maintained at 15dB, the system efficiency is -4dB, and the patterns of the two antennas are complementary.
  • Fig. 24 is another S parameter simulation diagram of the antenna assembly shown in Fig. 14, and Fig. 25 is another efficiency simulation diagram of the antenna assembly shown in Fig. 14.
  • 26 is a schematic diagram of an electric field distribution of the antenna assembly shown in Figure 14 when it is excited by the second feeder to work at 1.65GHz
  • Figure 27 is a schematic diagram of the antenna assembly shown in Figure 14 when it is working at 3.3GHz under the excitation of the second feeder
  • Fig. 28 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 14 works at 1.7GHz under the excitation of the first feeder
  • Fig. 29 is a schematic diagram of the antenna assembly shown in Fig.
  • FIG. 14 working under the excitation of the first feeder
  • FIG. 30 is a pattern of the antenna assembly shown in Fig. 14 operating at 1.65 GHz under the excitation of the second feeder line.
  • Fig. 31 is a diagram showing the antenna assembly shown in Fig. 14 at 1.65 GHz.
  • the structure and size of the antenna assembly are the same as those in the first simulation. I will not repeat them here, and only adjust the matching form.
  • the second feeder line is correspondingly provided with a second matching inductance of 1nH and a second matching capacitor of 0.5pF
  • the first feeder line is correspondingly provided with a first matching inductance of 2.5nH and a first matching capacitor of 2pF
  • the first The specific connection structures of the matching inductor, the first matching capacitor, the second matching inductor, and the second matching capacitor are the same as those in the foregoing embodiment, and will not be repeated here.
  • the 1/2 ⁇ and 1 ⁇ modes are at the same frequency and can cover the GPS frequency band at the same time. At this time, the isolation of the two antennas can be maintained at 17dB, the efficiency of the antenna under the excitation of the first feeder is higher, and the directional patterns of the two antennas are complementary.
  • FIG. 32 is a top view of another antenna assembly in an embodiment of this application
  • FIG. 33 is a three-dimensional schematic diagram of a part of the structure in FIG. 32
  • FIG. 34 is the antenna assembly shown in FIG. 32
  • Fig. 35 is an efficiency simulation diagram of the antenna assembly shown in Fig. 32
  • Fig. 36 is an electric field distribution when the antenna assembly shown in Fig. 32 works at 1.66GHz under the excitation of the second feeder.
  • Schematic diagram, Fig. 37 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 32 works at 3.17 GHz under the excitation of the second feeder line
  • Fig. 38 is the antenna assembly shown in Fig.
  • Fig. 39 is a schematic diagram of an electric field distribution when the antenna assembly shown in Fig. 32 works at 4.8 GHz under the excitation of the first feeder
  • Fig. 40 is a schematic diagram of an electric field distribution of the antenna assembly shown in Fig. 32 at the second feeder.
  • a kind of pattern when working at 1.66GHz under wire excitation Figure 41 is a kind of pattern when the antenna assembly shown in Fig. 32 is working at 1.64GHz under the excitation of the first feeder line.
  • the antenna The size of the component is the same as that of the first simulation, which will not be repeated here.
  • the larger grounding portion is used as the first grounding portion 11, the smaller grounding portion is used as the second grounding portion 12, and the first grounding portion 11 is A first stub 101 and a second stub 102 are provided.
  • the first feeder feeds power from the first stub 101 to the second stub 102, and the second feeder feeds power from the first ground part 11 to the second ground part 12.
  • the second feeder line is correspondingly provided with a second matching inductance of 1nH and a second matching capacitor of 0.5pF.
  • the first feeder line is correspondingly provided with a first matching inductance of 2.5nH and a first matching capacitor of 2pF.
  • the first matching inductance The specific connection structure of the first matching capacitor, the second matching inductor, and the second matching capacitor is the same as in the above-mentioned embodiment, and will not be repeated here. In the third simulation, it can also ensure that the isolation of the two antennas is high, and the directional patterns of the two antennas are complementary.
  • An embodiment of the present application also provides a mobile terminal, including: a radio frequency unit and the above-mentioned antenna assembly; the first end 211 of the first feeder line 21 in the antenna assembly is electrically connected to the radio frequency unit, and the second feeder line 22 of the antenna assembly is electrically connected to the radio frequency unit. The first end 221 is electrically connected to the radio frequency unit.
  • the radio frequency unit generates radio frequency signals and feeds the radio frequency signals to the antenna assembly through the first feeder line 21 and the second feeder line 22, and then realizes signal radiation through the antenna assembly, or the antenna assembly transmits the received wireless signal to the radio frequency. Unit for processing.
  • the mobile terminal is also called User Equipment (UE), which is a device that provides voice and/or data connectivity to users, such as handheld devices and vehicle-mounted devices with wireless connection functions.
  • UE User Equipment
  • Common terminals include, for example: mobile phones, tablet computers, notebook computers, palmtop computers, mobile internet devices (MID), wearable devices, such as smart watches, smart bracelets, pedometers, and so on.
  • the antenna assembly can be located in different positions of the mobile terminal. For example, in a mobile phone, the antenna assembly can be located at the top, bottom, and sides of the mobile phone.
  • the antenna assembly is a metal back plate of a mobile phone, and the metal back plate is provided with a gap.
  • a radiating structure is formed by setting a gap between the first grounding portion and the second grounding portion, and the first feeder is set to feed power from the first grounding portion to the first grounding portion, and Excitation is performed at the gap to realize an antenna, and a second feeder line is set to feed power from one of the first grounding portion and the second grounding portion to the other, and excitation is performed at the gap to realize another antenna, namely Based on the same radiating structure, it is excited by two different feeding modes to realize the function of two antennas, thereby saving the space occupied by the antennas.
  • At least one refers to one or more
  • multiple refers to two or more.
  • And/or describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean the existence of A alone, A and B at the same time, and B alone. Among them, A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • “The following at least one item” and similar expressions refer to any combination of these items, including any combination of single items or plural items.
  • At least one of a, b, and c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

Landscapes

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

Abstract

本申请实施例提供一种天线组件和移动终端，涉及天线技术领域，可以在同一个辐射结构中实现两个天线，从而节省了天线对空间的占用。天线组件包括：第一接地部和第二接地部，第一接地部和第二接地部之间形成缝隙，第一接地部和第二接地部被缝隙分隔；第一馈电线，第一馈电线的至少部分位于缝隙内或位于缝隙的正对位置，第一馈电线的第一端用于为第一接地部馈电，第一馈电线的第二端电连接于第一接地部；第二馈电线，第二馈电线的至少部分位于缝隙内或位于缝隙的正对位置，第二馈电线的第一端用于为第一接地部和第二接地部中的一者馈电，第二馈电线的第二端电连接于第一接地部和第二接地部中的另一者。

Description

天线组件和移动终端
本申请要求于2020年01月08日提交中国专利局、申请号为202010019331.5、申请名称为“天线组件和移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及天线技术领域，特别涉及一种天线组件和移动终端。
背景技术
随着移动通信的发展以及用户对移动终端薄型化的需求，使得在移动终端中天线所占据的空间有限。另外，随着手机上需要覆盖的频段越来越多，天线数量也越来越多，因此怎样在有限的空间内布局更多数量的天线成为一个重要的问题。
发明内容
本申请技术方案提供了一种天线组件和移动终端，可以在同一个辐射结构中实现两个天线，从而节省了天线对空间的占用。
第一方面，本申请技术方案提供了一种天线组件，包括：
第一接地部和第二接地部，第一接地部和第二接地部之间形成缝隙，第一接地部和第二接地部被缝隙分隔；
第一馈电线，第一馈电线的至少部分位于缝隙内或位于缝隙的正对位置，第一馈电线的第一端用于为第一接地部馈电，第一馈电线的第二端电连接于第一接地部；
第二馈电线，第二馈电线的至少部分位于缝隙内或位于缝隙的正对位置，第二馈电线的第一端用于为第一接地部和第二接地部中的一者馈电，第二馈电线的第二端电连接于第一接地部和第二接地部中的另一者。
在一种可能的设计中，缝隙为对称结构。
在一种可能的设计中，第一馈电线和第二馈电线垂直交叉于缝隙的对称面。
在一种可能的设计中，所述第二馈电线位于缝隙或位于缝隙的正对位置的部分位于缝隙的对称面处且沿缝隙的对称面延伸。
在一种可能的设计中，缝隙的延伸路径为U型。
在一种可能的设计中，电连接于第一接地部的第一枝节和第二枝节，第一枝节与第一馈电线的第一端相对，以使第一馈电线的第一端为第一枝节馈电，第一馈电线的第二端电连接于第二枝节。
在一种可能的设计中，第一枝节和第二枝节分别位于对称面的两侧，且第一枝节和第二枝节相对于对称面形成对称结构。
在一种可能的设计中，第一枝节包括第一枝节臂和第二枝节臂，第二枝节臂通过第一枝节臂连接于第一接地部，第二枝节臂的长度方向垂直于缝隙的对称面；第二枝节包括第三枝节臂和第四枝节臂，第四枝节臂通过第三枝节臂连接于第一接地部，第四枝节臂的长度方向垂直于缝隙的对称面。
在一种可能的设计中，第一枝节通过第一枝节电感电连接于第一接地部，第二枝节通过第二枝节电感电连接于第一接地部。
在一种可能的设计中，第一馈电线上串联有第一匹配电感；
和/或，第二馈电线上串联有第二匹配电感。
在一种可能的设计中，天线组件还包括第一匹配电容，第一匹配电容的两端分别电连接于第一馈电线的第一端和第一接地部；
和/或，第二匹配电容，第二匹配电容的两端分别电连接于第一接地部和第二接地部。
第二方面，本申请技术方案还提供了一种移动终端，包括：射频单元和上述的天线组件；
天线组件中第一馈电线的第一端电连接于射频单元，天线组件中的第二馈电线的第一端电连接于射频单元。
本申请技术方案中的天线组件和移动终端，通过在第一接地部和第二接地部之间设置缝隙形成辐射结构，设置第一馈电线从第一接地部馈电向第一接地部馈电，且在缝隙处进行激励，以实现一个天线，设置第二馈电线从第一接地部和第二接地部中的一者向另外一者馈电，且在缝隙处进行激励，以实现另一个天线，即实现了基于同一个辐射结构，通过两种不同的馈电方式激励，实现了两个天线的功能，从而节省了天线对空间的占用。
附图说明
图1为本申请实施例中一种天线组件的俯视图；
图2为图1中天线组件的立体结构示意图；
图3为图1中AA’向的一种剖面结构示意图；
图4为图1中BB’向的一种剖面结构示意图；
图5为本申请实施例中另一种天线组件的结构示意图；
图6为本申请实施例中另一种天线组件的俯视图；
图7为图6中天线组件的立体结构示意图；
图8为图6中CC’向的一种剖面结构示意图；
图9为图6中CC’向的另一种剖面结构示意图；
图10为图6中DD’向的一种剖面结构示意图；
图11为图6中DD’向的一种剖面结构示意图；
图12为图3、图8或图9对应的一种等效电路图；
图13为图4或图10对应的一种等效电路图；
图14为本申请实施例中另一种天线组件的俯视图；
图15为图14中部分结构的一种立体示意图；
图16为图14所示天线组件的一种S参数仿真图；
图17为图14所示天线组件的一种效率仿真图；
图18为图14所示天线组件在第二馈电线激励下工作于2.97GHz时的一种电场分布示意图；
图19为图14所示天线组件在第二馈电线激励下工作于4.57GHz时的一种电场分布示意图；
图20为图14所示天线组件在第一馈电线激励下工作于1.75GHz时的一种电场分布示意图；
图21为图14所示天线组件在第一馈电线激励下工作于4.5GHz时的一种电场分布示意图；
图22为图14所示的天线组件在第二馈电线激励下工作于4.57GHz时的一种方向图；
图23为图14所示的天线组件在第一馈电线激励下工作于4.5GHz时的一种方向图；
图24为图14所示天线组件的另一种S参数仿真图；
图25为图14所示天线组件的另一种效率仿真图；
图26为图14所示天线组件在第二馈电线激励下工作于1.65GHz时的一种电场分布示意图；
图27为图14所示天线组件在第二馈电线激励下工作于3.3GHz时的一种电场分布示意图；
图28为图14所示天线组件在第一馈电线激励下工作于1.7GHz时的一种电场分布示意图；
图29为图14所示天线组件在第一馈电线激励下工作于4.8GHz时的一种电场分布示意图；
图30为图14所示的天线组件在第二馈电线激励下工作于1.65GHz时的一种方向图；
图31为图14所示的天线组件在第一馈电线激励下工作于1.7GHz时的一种方向图；
图32为本申请实施例中另一种天线组件的俯视图；
图33为图32中部分结构的一种立体示意图；
图34为图32所示天线组件的一种S参数仿真图；
图35为图32所示天线组件的一种效率仿真图；
图36为图32所示天线组件在第二馈电线激励下工作于1.66GHz时的一种电场分布示意图；
图37为图32所示天线组件在第二馈电线激励下工作于3.17GHz时的一种电场分布示意图；
图38为图32所示天线组件在第一馈电线激励下工作于1.64GHz时的一种电场分布示意图；
图39为图32所示天线组件在第一馈电线激励下工作于4.8GHz时的一种电场分 布示意图；
图40为图32所示的天线组件在第二馈电线激励下工作于1.66GHz时的一种方向图；
图41为图32所示的天线组件在第一馈电线激励下工作于1.64GHz时的一种方向图。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
如图1至图4所示，图1为本申请实施例中一种天线组件的俯视图，图2为图1中天线组件的立体结构示意图，图3为图1中AA’向的一种剖面结构示意图，图4为图1中BB’向的一种剖面结构示意图，本申请实施例提供了一种天线组件，包括：第一接地部11和第二接地部12，第一接地部11和第二接地部12之间形成缝隙10，第一接地部11和第二接地部12被缝隙分隔10，即缝隙10在其延伸路径上的两端具有开口；第一馈电线21(图2中未示出)，第一馈电线21的至少部分位于缝隙10内或位于缝隙10的正对位置，在图1至图4所示的结构中，仅示意了第一馈电线21的部分位于缝隙10的正对位置的情况，例如图3中第一馈电线21位于缝隙10的上方，即第一馈电线21中的部分正对于缝隙10，第一馈电线21的第一端211用于为第一接地部11馈电，第一馈电线21的第二端212电连接于第一接地部11；第二馈电线22(图2中未示出)，第二馈电线22的至少部分位于缝隙10内或位于缝隙10的正对位置，第二馈电线22的第一端221用于为第一接地部11和第二接地部12中的一者馈电，第二馈电线22的第二端222电连接于第一接地部11和第二接地部12中的另一者，在图1至图4所示的结构中，仅示意了第二馈电线22的部分位于缝隙10的正对位置的情况，例如图4中第二馈电线22位于缝隙10的下方，即第二馈电线22中的部分正对于缝隙10，图4仅示意了第二馈电线22的第一端221为第一接地部11馈电，第二馈电线22的第二端222电连接于第二接地部12的情况，另外在图4所示的结构中，第二馈电线22的第一端221与第一接地部11正对，用于为第一接地部11馈电，第二馈电线22的第二端222电连接于第二接地部12，即第二馈电线22用于实现从第一接地部11向第二接地部12的方向馈电。
具体地，本申请实施例中天线组件是基于两端开口的槽(open-slot)天线(或称为缝隙天线)辐射结构，在同一个辐射结构中设置两种馈电，其中一种馈电通过第一馈电线21来实现，即从第一接地部11馈电至该相同的第一接地部11；另一种馈电通过第二馈电线22来实现，即从一个接地部馈电至另外一个接地部。在图1至图4所示的结构中，第一馈电线21的第一端211正对于第一接地部11的部分区域，以通过微带线的方式进行馈电，第一馈电线21的至少部分位于缝隙10内或者位于缝隙10的正对位置，以此来激励缝隙10处的辐射；第二馈电线22的第一端221正对于第一接地部11的部分区域，以通过微带线的方式进行馈电，第二馈电线22的至少部分位于缝隙10内或者位于缝隙10的正对位置，以此来激励缝隙10处的辐射。第一馈电线21的馈电方式可以称为共模馈电，第二馈电线22的馈电方式可以成为差模馈电，缝隙天 线的辐射结构可以工作于1/2倍波长(1/2λ)、1倍波长(1λ)、3/2倍波长(3/2λ)、2倍波长(2λ)四种模式，λ为波长，本申请实施例中，通过第一馈电线21的馈电可以激励出缝隙天线的半波长模式及其倍频模式，例如1/2倍波长、3/2倍波长两种辐射模式，通过第二馈电线22可以激励出缝隙天线的一倍波长模式及其倍频模式，例如1倍波长、2倍波长两种辐射模式，其中，第一馈电线21所激励得到的两种辐射模式可以用于单独实现一个天线的功能，第二馈电线22所激励得到的两种辐射模式可以用于单独实现另一个天线的功能。两种馈电所激励得到的辐射模式可以覆盖相同的频段或者不同的频段，其隔离度良好，方向图互补，通过在同一个辐射结构上的两种馈电，即可实现两个独立天线的功能。
需要说明的是，本申请实施例中对于天线组件的缝隙10结构不作限定，例如，在其他可实现的实施方式中，天线组件的缝隙可以为非对称的结构，同样的，各馈电线的位置也可以设置为非对称的位置。
本申请实施例中的天线组件，通过在第一接地部和第二接地部之间设置缝隙形成辐射结构，设置第一馈电线从第一接地部馈电向第一接地部馈电，且在缝隙处进行激励，以实现一个天线，设置第二馈电线从第一接地部和第二接地部中的一者向另外一者馈电，且在缝隙处进行激励，以实现另一个天线，即实现了基于同一个辐射结构，通过两种不同的馈电方式激励，实现了两个天线的功能，从而节省了天线对空间的占用。
可选地，如图1至图4以及图5所示，图5为本申请实施例中另一种天线组件的结构示意图，缝隙10为对称结构。
具体地，缝隙10为对称结构是指缝隙10所形成的结构具有对称面L，在对称面L两侧的缝隙10结构互为镜像，缝隙10的延伸路径穿过对称面L。例如在如图1至图4所示的结构中，第一接地部11和第二接地部12为板状结构，在第一接地部11和第二接地部12所在平面上形成缝隙10。例如在如图5所示的结构中，第一接地部11和第二接地部12均为弯折的板状结构，在第一接地部11和第二接地部12之间形成弯折的缝隙10，需要说明的是，图5中未示意第一馈电线和第二馈电线。可以理解地，在其他可实现的实施方式中，第一接地部和第二接地部之间可以形成更加复杂的缝隙结构，只需要保证缝隙为对称结构即可。对称结构的缝隙10配合上述两种馈电，可以使所激励出的两个天线具有更高的隔离度。需要说明的是，对于非对称结构的缝隙，配合上述两种馈电，所激励出的两个天线，可以通过调整馈电位置来抵消缝隙不对称所带来的不良影响，以实现较高隔离度的两个天线。需要说明的是，本申请实施例对于缝隙10的延伸路径形状不作限定，例如在其他可实现的实施方式中，缝隙的延伸路径也可以为“一”字型或者其他的对称形状。
可选地，如图1至图4所示，第一馈电线21和第二馈电线22交叉于缝隙10的对称面L，例如，第一馈电线21在缝隙10内或正对于缝隙10的部分垂直于第二馈电线22在缝隙10内或正对于缝隙10的部分，且两者之间绝缘交叉，交叉的位置位于缝隙10的对称面上，可以进一步提高两个天线之间的隔离度。
可选地，如图1至图4所示，第一馈电线21位于缝隙10内或位于缝隙10的正对位置的部分位于缝隙10的对称面L处且沿缝隙10的对称面L延伸，即第一馈电线21 的，以进一步提高两个天线之间的隔离度。
可选地，如图1至图4所示，缝隙10的延伸路径为U型。
具体地，在如图1至图4所示的结构中，第一接地部11和第二接地部12均为板状结构且位于同一平面，在该平面上，第一接地部11为U型，具有两个馈电臂和连接于两个馈电臂之间的连接部，第一馈电线21的第一端211位于第一馈电臂的上方，以便于向第一馈电臂馈电，第一馈电线21跨过缝隙10延伸路径的中间部分，从第一端211延伸至第二端212，第一馈电线21的第二端212位于第二馈电臂的上方且电连接于第二馈电臂；第二馈电线22的第一端221位于第一接地部11的连接部下方，以便于向第一接地部11馈电，第二馈电线22从第一端221跨过缝隙10延伸至第二端222，第二馈电线22的第二端222位于第二接地部12的下方且电连接于第二接地部12。
可选地，如图6至图10所示，图6为本申请实施例中另一种天线组件的俯视图，图7为图6中天线组件的立体结构示意图，图8为图6中CC’向的一种剖面结构示意图，图9为图6中CC’向的另一种剖面结构示意图，图10为图6中DD’向的一种剖面结构示意图，图11为图6中DD’向的一种剖面结构示意图，天线组件还包括：电连接于第一接地部11的第一枝节101和第二枝节102，第一枝节101与第一馈电线21的第一端211相对，以使第一馈电线21的第一端211为第一枝节101馈电，第一馈电线21的第二端212电连接于第二枝节102。
具体地，在图8所示的结构中，第一馈电线21位于缝隙10之外，但是位于缝隙10的正对位置，在图9所示的结构中，第一馈电线21位于缝隙10内。在图10所示的结构中，第二馈电线22位于缝隙10内，只要能够实现通过其中一端向第一接地部11馈电，另外一端电连接于第二接地部12即可，可以理解地，图6和图7所示的结构也可以使用如图4中所示意的结构实现第二馈电线22的馈电。另外，如图11所示，也可以通过第二馈电线22实现由第二接地部12向第一接地部11方向的馈电。
可选地，如图6和图7所示，第一枝节101和第二枝节102分别位于对称面L的两侧，且第一枝节101和第二枝节102相对于对称面L形成对称结构，以进一步提高两个天线的隔离度。
可选地，如图6至图10所示，第一枝节101包括第一枝节臂01和第二枝节臂02，第二枝节臂02通过第一枝节臂01连接于第一接地部11，第二枝节臂02的长度方向垂直于缝隙10对称面L；第二枝节102包括第三枝节臂03和第四枝节臂04，第四枝节臂04通过第三枝节臂03连接于第一接地部11。第一枝节臂01和第二枝节臂02形成“L”型的第一枝节101，第三枝节臂03和第四枝节臂04形成“L”型的第二枝节102，第一馈电线21配合对称设置的第一枝节101和第二枝节102共同实现馈电，以进一步提高两个电线的隔离度。
可选地，第一枝节101通过第一枝节电感电连接于第一接地部11，第二枝节102通过第二枝节电感电连接于第一接地部11，通过第一枝节电感和第二枝节电感可以用于调节天线的阻抗匹配，当然，第一枝节101也可以直接连接第一接地部11，第二枝节102也可以直接连接第二接地部12。
可选地，如图12和图13所示，图12为图3、图8或图9对应的一种等效电路图， 图13为图4或图10对应的一种等效电路图，第一馈电线21上串联有第一匹配电感L1，即第一馈电线21的第一端211通过第一匹配电感L1电连接于第二端212；和/或，第二馈电线22上串联有第二匹配电感L2，即第二馈电线22的第一端221通过第二匹配电感L2电连接于第二端222。
可选地，如图12和图13所示，天线组件还包括：第一匹配电容C1，第一匹配电容C1的两端分别电连接于第一馈电线21的第一端211和第一接地部11；和/或，第二匹配电容C2，第二匹配电容C2的两端分别电连接于第一接地部11和第二接地部12。
具体地，上述第一匹配电感L1、第二匹配电感L2、第一匹配电容C1和第二匹配电容C2用于实现天线的阻抗匹配，可以具体根据应用和环境来设置，用于调整各谐振频率。需要说明的是，本申请实施例对于天线组件中具体的阻抗匹配形式不作限定，可以通过上述四种匹配器件中的任意一者或者任意组合来实现阻抗匹配，也可以通过其他的形式实现阻抗匹配。
以下通过天线组件的仿真结果对本申请实施例进一步进行说明。
例如，如图14至图22所示，图14为本申请实施例中另一种天线组件的俯视图，图15为图14中部分结构的一种立体示意图，图16为图14所示天线组件的一种S参数仿真图，图17为图14所示天线组件的一种效率仿真图，图18为图14所示天线组件在第二馈电线激励下工作于2.97GHz时的一种电场分布示意图，图19为图14所示天线组件在第二馈电线激励下工作于4.57GHz时的一种电场分布示意图，图20为图14所示天线组件在第一馈电线激励下工作于1.75GHz时的一种电场分布示意图，图21为图14所示天线组件在第一馈电线激励下工作于4.5GHz时的一种电场分布示意图，图22为图14所示的天线组件在第二馈电线激励下工作于4.57GHz时的一种方向图，图23为图14所示的天线组件在第一馈电线激励下工作于4.5GHz时的一种方向图，在第一种仿真中，天线组件的整体尺寸为宽度h1＝77mm、长度h2＝158mm、厚度h3＝5mm，其中第一接地部11和第二接地部12为相同厚度的平板状结构，且位于同一平面，两者之间形成的缝隙10的高度即为天线组件的整体厚度h3，缝隙10的宽度h4＝1.5mm，缝隙10的长度为58mm，缝隙10的长度即为图14中U型缝隙10的延伸路径长度。第一接地部11上设置有第一枝节101和第二枝节102，第一馈电线从第一枝节101向第二枝节102馈电，第二馈电线从第二接地部12向第一接地部11馈电。其中，第二馈电线对应设置有3nH的第二匹配电感、1pF的第二匹配电容，第一馈电线对应设置有3nH的第一匹配电感，其中，第一匹配电感、第二匹配电感和第二匹配电容的具体连接结构与上述实施例中相同，在此不再赘述。在图18至图21所示的电场分布图中，椭圆圈为电场方向变化区域O，在电场方向变化区域O，天线组件缝隙中的电场方向变化至反向，电场方向反向一次则对应一个1/2λ，在天线组件的缝隙处，若电场方向发生1次反向，则说明天线组件工作于1/2λ模式，若电场方向发生2次反向，则说明天线组件工作于1λ模式，若电场方向发生3次反向，则说明天线组件工作于3/2λ模式，若电场方向发生4次反向，则说明天线组件工作于2λ模式。在图16和图17中，CM是指第一馈电线激励对应的曲线，DM是指第二馈电线激励对应的曲线，第一馈电线在1～5GHz频带范围内激励出1/2λ模式和3/2λ模式，第二馈电线在 1～5GHz频带范围内激励出1λ模式和2λ模式，通过上述匹配，使得3/2λ和2λ模式处于相同频率，能够同时覆盖N79频段。此时，两个天线的隔离度能够保持15dB，系统效率为-4dB，且两个天线的方向图是互补的。
例如，如图14、图24至图31所示，图24为图14所示天线组件的另一种S参数仿真图，图25为图14所示天线组件的另一种效率仿真图，图26为图14所示天线组件在第二馈电线激励下工作于1.65GHz时的一种电场分布示意图，图27为图14所示天线组件在第二馈电线激励下工作于3.3GHz时的一种电场分布示意图，图28为图14所示天线组件在第一馈电线激励下工作于1.7GHz时的一种电场分布示意图，图29为图14所示天线组件在第一馈电线激励下工作于4.8GHz时的一种电场分布示意图，图30为图14所示的天线组件在第二馈电线激励下工作于1.65GHz时的一种方向图，图31为图14所示的天线组件在第一馈电线激励下工作于1.7GHz时的一种方向图，在第二种仿真中，天线组件的结构和尺寸与第一种仿真相同，在此不再赘述，仅对匹配形式进行调整，其中，第二馈电线对应设置有1nH的第二匹配电感、0.5pF的第二匹配电容，第一馈电线对应设置有2.5nH的第一匹配电感、2pF的第一匹配电容，其中，第一匹配电感、第一匹配电容、第二匹配电感和第二匹配电容的具体连接结构与上述实施例中相同，在此不再赘述。第二种仿真中，1/2λ和1λ模式处于相同频率，能够同时覆盖GPS频段。此时，两个天线的隔离度能够保持17dB，第一馈电线激励下天线的效率较高，且两个天线的方向图是互补的。
例如，如图32至图41所示，图32为本申请实施例中另一种天线组件的俯视图，图33为图32中部分结构的一种立体示意图，图34为图32所示天线组件的一种S参数仿真图，图35为图32所示天线组件的一种效率仿真图，图36为图32所示天线组件在第二馈电线激励下工作于1.66GHz时的一种电场分布示意图，图37为图32所示天线组件在第二馈电线激励下工作于3.17GHz时的一种电场分布示意图，图38为图32所示天线组件在第一馈电线激励下工作于1.64GHz时的一种电场分布示意图，图39为图32所示天线组件在第一馈电线激励下工作于4.8GHz时的一种电场分布示意图，图40为图32所示的天线组件在第二馈电线激励下工作于1.66GHz时的一种方向图，图41为图32所示的天线组件在第一馈电线激励下工作于1.64GHz时的一种方向图，在第三种仿真中，天线组件的尺寸与第一种仿真相同，在此不再赘述，在结构上，较大的接地部作为第一接地部11，较小的接地部作为第二接地部12，第一接地部11上设置有第一枝节101和第二枝节102，第一馈电线从第一枝节101向第二枝节102馈电，第二馈电线从第一接地部11向第二接地部12馈电。第二馈电线对应设置有1nH的第二匹配电感、0.5pF的第二匹配电容，第一馈电线对应设置有2.5nH的第一匹配电感、2pF的第一匹配电容，其中，第一匹配电感、第一匹配电容、第二匹配电感和第二匹配电容的具体连接结构与上述实施例中相同，在此不再赘述。在第三种仿真中，同样可以保证两个天线的隔离度较高，且两个天线的方向图互补。
本申请实施例还提供一种移动终端，包括：射频单元和上述的天线组件；天线组件中第一馈电线21的第一端211电连接于射频单元，天线组件中的第二馈电线22的第一端221电连接于射频单元。
其中，射频单元产生射频信号并将射频信号通过第一馈电线21和第二馈电线22 向天线组件进行馈电，进而通过天线组件实现信号辐射，或者天线组件将接收到的无线信号传输至射频单元进行处理。
其中，天线组件的具体结构和原理可以与上述实施例相同，再次不在赘述。移动终端又称之为用户设备(User Equipment，UE)，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。常见的终端例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，例如智能手表、智能手环、计步器等。天线组件可以位于移动终端的不同位置，例如在手机中，天线组件可以位于手机顶部、底部和侧边等位置，例如天线组件为手机的金属背板，金属背板上设置有缝隙。
本申请实施例中的移动终端，通过在第一接地部和第二接地部之间设置缝隙形成辐射结构，设置第一馈电线从第一接地部馈电向第一接地部馈电，且在缝隙处进行激励，以实现一个天线，设置第二馈电线从第一接地部和第二接地部中的一者向另外一者馈电，且在缝隙处进行激励，以实现另一个天线，即实现了基于同一个辐射结构，通过两种不同的馈电方式激励，实现了两个天线的功能，从而节省了天线对空间的占用。
本申请实施例中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示单独存在A、同时存在A和B、单独存在B的情况。其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项”及其类似表达，是指的这些项中的任意组合，包括单项或复数项的任意组合。例如，a，b和c中的至少一项可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以上仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种天线组件，其特征在于，包括：
    第一接地部和第二接地部，所述第一接地部和所述第二接地部之间形成缝隙，所述第一接地部和所述第二接地部被所述缝隙分隔；
    第一馈电线，所述第一馈电线的至少部分位于所述缝隙内或位于所述缝隙的正对位置，所述第一馈电线的第一端用于为所述第一接地部馈电，所述第一馈电线的第二端电连接于所述第一接地部；
    第二馈电线，所述第二馈电线的至少部分位于所述缝隙内或位于所述缝隙的正对位置，所述第二馈电线的第一端用于为所述第一接地部和所述第二接地部中的一者馈电，所述第二馈电线的第二端电连接于所述第一接地部和所述第二接地部中的另一者。
  2. 根据权利要求1所述的天线组件，其特征在于，
    所述缝隙为对称结构。
  3. 根据权利要求2所述的天线组件，其特征在于，
    所述第一馈电线和所述第二馈电线交叉于所述缝隙的对称面。
  4. 根据权利要求3所述的天线组件，其特征在于，
    所述第二馈电线位于所述缝隙内或位于所述缝隙的正对位置的部分位于所述缝隙的对称面处且沿所述缝隙的对称面延伸。
  5. 根据权利要求2所述的天线组件，其特征在于，
    所述缝隙的延伸路径为U型。
  6. 根据权利要求2所述的天线组件，其特征在于，还包括：
    电连接于所述第一接地部的第一枝节和第二枝节，所述第一枝节与所述第一馈电线的第一端相对，以使所述第一馈电线的第一端为所述第一枝节馈电，所述第一馈电线的第二端电连接于所述第二枝节。
  7. 根据权利要求6所述的天线组件，其特征在于，
    所述第一枝节和所述第二枝节分别位于所述对称面的两侧，且所述第一枝节和所述第二枝节相对于所述对称面形成对称结构。
  8. 根据权利要求7所述的天线组件，其特征在于，
    所述第一枝节包括第一枝节臂和第二枝节臂，所述第二枝节臂通过所述第一枝节臂连接于所述第一接地部，所述第二枝节臂的长度方向垂直于所述缝隙的对称面；
    所述第二枝节包括第三枝节臂和第四枝节臂，所述第四枝节臂通过所述第三枝节臂连接于所述第一接地部，所述第四枝节臂的长度方向垂直于所述缝隙的对称面。
  9. 根据权利要求7所述的天线组件，其特征在于，
    所述第一枝节通过第一枝节电感电连接于所述第一接地部，所述第二枝节通过第二枝节电感电连接于所述第一接地部。
  10. 根据权利要求1所述的天线组件，其特征在于，
    所述第一馈电线上串联有第一匹配电感；
    和/或，所述第二馈电线上串联有第二匹配电感。
  11. 根据权利要求1所述的天线组件，其特征在于，还包括：
    第一匹配电容，所述第一匹配电容的两端分别电连接于所述第一馈电线的第一端 和所述第一接地部；
    和/或，第二匹配电容，所述第二匹配电容的两端分别电连接于所述第一接地部和所述第二接地部。
  12. 一种移动终端，其特征在于，包括：射频单元和如权利要求1至11中任意一项所述的天线组件；
    所述天线组件中第一馈电线的第一端电连接于所述射频单元，所述天线组件中的第二馈电线的第一端电连接于所述射频单元。
PCT/CN2020/135115 2020-01-08 2020-12-10 天线组件和移动终端 WO2021139473A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/791,508 US12080959B2 (en) 2020-01-08 2020-12-10 Antenna assembly and mobile terminal
EP20912301.7A EP4075594A4 (en) 2020-01-08 2020-12-10 ANTENNA ARRANGEMENT AND MOBILE DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010019331.5A CN113097698B (zh) 2020-01-08 2020-01-08 天线组件和移动终端
CN202010019331.5 2020-01-08

Publications (1)

Publication Number Publication Date
WO2021139473A1 true WO2021139473A1 (zh) 2021-07-15

Family

ID=76663447

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/135115 WO2021139473A1 (zh) 2020-01-08 2020-12-10 天线组件和移动终端

Country Status (4)

Country Link
US (1) US12080959B2 (zh)
EP (1) EP4075594A4 (zh)
CN (1) CN113097698B (zh)
WO (1) WO2021139473A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066374A (zh) * 2011-10-24 2013-04-24 联想(北京)有限公司 缝隙结构天线装置和终端设备
US20160072178A1 (en) * 2014-09-08 2016-03-10 Apple Inc. Electronic Device Antenna Feed and Return Path Structures
CN105762519A (zh) * 2015-04-27 2016-07-13 维沃移动通信有限公司 一种缝隙天线及移动终端
CN108767499A (zh) * 2018-04-28 2018-11-06 华勤通讯技术有限公司 金属边框天线及终端设备
CN108963439A (zh) * 2018-07-13 2018-12-07 Oppo广东移动通信有限公司 天线组件以及电子装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524641C2 (sv) * 2000-02-22 2004-09-07 Smarteq Wireless Ab En antennanordning och ett antennaggregat
CN103794886B (zh) * 2012-02-23 2016-02-24 上海安费诺永亿通讯电子有限公司 一种多模谐振天线系统
US9768506B2 (en) * 2015-09-15 2017-09-19 Microsoft Technology Licensing, Llc Multi-antennna isolation adjustment
US10498010B2 (en) * 2016-07-21 2019-12-03 Chiun Mai Communication Systems, Inc. Antenna structure and wireless communication device using same
US9947993B2 (en) * 2016-08-12 2018-04-17 Microsoft Technology Licensing, Llc Antenna stack
CN107039766B (zh) 2017-04-28 2019-07-26 维沃移动通信有限公司 一种天线装置及电子设备
CN107565209B (zh) * 2017-07-31 2020-10-16 北京小米移动软件有限公司 移动终端及其天线
CN207781886U (zh) * 2017-12-26 2018-08-28 歌尔科技有限公司 一种微带缝隙天线
CN109687111B (zh) * 2018-12-29 2021-03-12 维沃移动通信有限公司 一种天线结构及通信终端
CN110061349B (zh) * 2019-05-08 2020-04-28 清华大学 一种基于正交模式对的宽带5g mimo手机天线
CN110137664B (zh) * 2019-05-08 2020-06-23 清华大学 一种双天线集成的宽带5g mimo终端天线
CN111934089B (zh) * 2019-05-13 2021-10-26 华为技术有限公司 天线装置及移动终端
US11575206B2 (en) * 2020-06-19 2023-02-07 City University Of Hong Kong Self-filtering wideband millimeter wave antenna
TWI740551B (zh) * 2020-06-23 2021-09-21 國立陽明交通大學 基板合成波導饋入背腔雙極化貼片天線

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066374A (zh) * 2011-10-24 2013-04-24 联想(北京)有限公司 缝隙结构天线装置和终端设备
US20160072178A1 (en) * 2014-09-08 2016-03-10 Apple Inc. Electronic Device Antenna Feed and Return Path Structures
CN105762519A (zh) * 2015-04-27 2016-07-13 维沃移动通信有限公司 一种缝隙天线及移动终端
CN108767499A (zh) * 2018-04-28 2018-11-06 华勤通讯技术有限公司 金属边框天线及终端设备
CN108963439A (zh) * 2018-07-13 2018-12-07 Oppo广东移动通信有限公司 天线组件以及电子装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4075594A4

Also Published As

Publication number Publication date
EP4075594A1 (en) 2022-10-19
CN113097698B (zh) 2022-07-19
CN113097698A (zh) 2021-07-09
US12080959B2 (en) 2024-09-03
EP4075594A4 (en) 2023-01-25
US20230041500A1 (en) 2023-02-09

Similar Documents

Publication Publication Date Title
CN1330050C (zh) 移动通信终端的内部天线
TWI277243B (en) Multi-band antenna
US7271769B2 (en) Antennas encapsulated within plastic display covers of computing devices
US7453402B2 (en) Miniature balanced antenna with differential feed
WO2019086866A1 (en) Hybrid closed slot lte antenna
JP2013098974A (ja) スロットアンテナ
JP2012142793A (ja) アンテナ装置
CN114824749B (zh) 一种电子设备
US20220328968A1 (en) All metal modular array
WO2017185528A1 (zh) 壳体、天线装置和移动终端
CN114566783B (zh) 天线模块及电子设备
WO2022143320A1 (zh) 一种电子设备
JP2004201265A (ja) 板状逆ｆアンテナ
US9124001B2 (en) Communication device and antenna element therein
TWI632737B (zh) 多頻天線
US11342677B2 (en) Balanced dipole unit and broadband omnidirectional collinear array antenna
JP2003168916A (ja) アンテナ装置
WO2021139473A1 (zh) 天线组件和移动终端
TW201304271A (zh) 天線
WO2018163695A1 (ja) マルチバンドアンテナ及び無線通信装置
WO2022134785A1 (zh) 一种天线和通信设备
CN101707284B (zh) 一种用于射频前端系统的ltcc电小集成天线
TW201448348A (zh) 天線結構及應用該天線結構之無線通信裝置
CN215070397U (zh) 小型多频天线
CN212517502U (zh) 一种低剖面小型化双频wifi天线

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20912301

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020912301

Country of ref document: EP

Effective date: 20220712

NENP Non-entry into the national phase

Ref country code: DE