WO2014206110A1 - Système à multiples antennes et terminal mobile - Google Patents

Système à multiples antennes et terminal mobile Download PDF

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Publication number
WO2014206110A1
WO2014206110A1 PCT/CN2014/073003 CN2014073003W WO2014206110A1 WO 2014206110 A1 WO2014206110 A1 WO 2014206110A1 CN 2014073003 W CN2014073003 W CN 2014073003W WO 2014206110 A1 WO2014206110 A1 WO 2014206110A1
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WO
WIPO (PCT)
Prior art keywords
antenna
dielectric substrate
pifa
type
antennas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/073003
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English (en)
Chinese (zh)
Inventor
翟会清
李桐
李桂红
梁昌洪
余荣道
刘晟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP14817649.8A priority Critical patent/EP2999046B1/fr
Publication of WO2014206110A1 publication Critical patent/WO2014206110A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • 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
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • Multi-antenna system and mobile terminal This application claims priority to Chinese Patent Application No. 201310269571.0, entitled “Multi-antenna System and Mobile Terminal", filed on June 28, 2013, the entire contents of which are incorporated by reference. Combined in this application.
  • the present invention relates to the field of wireless communication technologies, and in particular, to a multi-antenna system and a mobile terminal.
  • Antennas are an important component of wireless communication systems.
  • a single antenna is typically used to transmit and receive signals.
  • the channel is affected by environmental factors such as terrain, temperature, and humidity, causing radio waves to fading in the air. It affects the quality of mobile communication. Therefore, it is difficult to maintain better communication performance in a complex propagation environment using only a single antenna.
  • MIMO Multi-Input Multi-Output
  • the Magnetic Compatibility results in reduced antenna efficiency, which affects the communication quality of the mobile terminal.
  • EMC Magnetic Compatibility
  • an embodiment of the present invention provides a multi-antenna system and a mobile terminal to achieve higher isolation while increasing the number of antennas in a dual-frequency mobile terminal.
  • a multi-antenna system including: two metal floors, including a first metal floor and a second metal floor, wherein the first metal floor and the second metal floor are located in the same orientation plane.
  • the distance between the two metal floors is greater than or equal to a first preset threshold;
  • the two dielectric substrates include a first dielectric substrate and a second dielectric substrate, and the first dielectric substrate and the second dielectric substrate are located In the same orientation plane, the first dielectric substrate is located above the first metal floor, the second dielectric substrate is located above the second metal floor, and a distance between the two dielectric substrates is greater than or Equal to the second preset threshold;
  • each of the first PIFA antennas comprising a radiation patch, a probe type feed line and a metal shorting pin, the first type of PIFA antenna having a first radiation patch Slot
  • Two of the first type of PIFA antennas are disposed on each of the two dielectric substrates, and the first type of PIFA antennas are provided with isolation branches; two of the first dielectric substrates are A radiation patch of the first type of PIFA antenna is disposed on the first dielectric substrate, and the probe type feed line and the metal shorting pin of the first type of PIFA antenna are connected to the first metal floor below the first dielectric substrate a radiation patch of two of the first type of PIFA antennas on the second dielectric substrate is disposed on the second dielectric substrate, and the probe type feed line and the metal shorting pin of the first type of PIFA antenna The second metal floor below the second dielectric substrate is connected; four of the first type of PIFA antennas are symmetric about the XOZ plane and the YOZ plane.
  • the first preset threshold is 30 mm.
  • the second preset threshold is 40 mm.
  • the method further includes: a second PIFA antenna, including a radiation patch, a probe type feeder, and a metal shorting pin, wherein the radiation patch of the second PIFA antenna is provided with a second slot;
  • the radiation patch of the second PIFA antenna is disposed at 1 mm to 5 mm above the at least one of the two dielectric substrates, and the probe type feeder and the metal shorting pin of the second PIFA antenna are A metal floor below the at least one dielectric substrate is connected; an isolation branch is disposed between the first type of PIFA antenna and the second type of PIFA antenna.
  • the second type of PIFA antennas are disposed on the first dielectric substrate and the second At the 1 mm to 5 mm above the dielectric substrate, four of the first PIFA antennas and two of the second PIFA antennas are symmetrical about the XOZ plane and the YOZ plane.
  • the first slot is a U-shaped slot.
  • the second slot is a line-shaped slot.
  • the radiation patch of the first type of PIFA antenna and the second type of PIFA antenna is rectangle.
  • the dielectric substrate has a dielectric constant of 1 to 9.8.
  • an embodiment of the present invention provides a mobile terminal, including a mobile terminal body and any one of the foregoing multiple antenna systems, where the mobile terminal body is connected to the multiple antenna system, and the multiple antenna system is used to The mobile terminal body transmits and receives signals.
  • the multi-antenna system and the mobile terminal implement dual-band through the PIFA antenna on the dielectric substrate and the slot on the radiating patch of the antenna, and the isolation between the antennas is improved by providing isolation branches between the antennas.
  • the isolation between the antennas on the two dielectric substrates is further improved by two separate dielectric substrates and metal floors.
  • the antenna adopts a PIFA antenna, so that the multi-antenna system and the mobile terminal can increase the number of antennas as much as possible in a limited space.
  • FIG. 1 is a schematic structural diagram of a multi-antenna system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a multi-antenna system according to another embodiment of the present invention
  • FIG. 3 is a schematic diagram of a multi-antenna system according to another embodiment of the present invention
  • Figure 4 is a schematic view of the multi-antenna system of Figure 3 in the XOY plane
  • Figure 5a is a front view of the antenna 1 in the multi-antenna system of Figure 3
  • Figure 5b is a side view of Figure 5a
  • Figure 6a is a view 3 is a front view of the antenna 5 in the multi-antenna system
  • FIG. 6b is a side view of FIG. 6a
  • FIG. 7a and FIG. 7b are S-parameter simulation diagrams of the multi-antenna system of FIG. 3 in the 2.53 GHz to 2.62 GHz band;
  • Figure 8b is a S-parameter simulation diagram of the multi-antenna system shown in Figure 3 in the 3.45 GHz - 3.6 GHz band;
  • FIG. 9a is a simulated radiation pattern of the antenna 1 at 2.58 GHz in the multi-antenna system shown in FIG. 3;
  • FIG. 9b is a simulated radiation pattern of the antenna 1 at 3.5 GHz in the multi-antenna system shown in FIG. 3;
  • FIG. 10b is a simulated radiation pattern of the antenna 5 at 3.5 GHz in the multi-antenna system shown in FIG. 3;
  • FIG. 11 is a movement diagram of another embodiment of the present invention. Schematic diagram of the structure of the terminal.
  • FIG. 1 is a schematic structural diagram of a multi-antenna system according to an embodiment of the present invention.
  • the multi-antenna system includes: two metal floors, two dielectric substrates, four first PIFA antennas, and four isolation branches.
  • the two metal floors include a metal floor 8a and a metal floor 8b.
  • the metal floor 8a and the metal floor 8b are located in the same azimuth plane, and the distance between the two metal floors is greater than or equal to a first preset threshold such as 30 mm.
  • the coupling between the antenna 1 and the antenna 3 on the dielectric substrate 7a and the antenna 4 and the antenna 6 on the dielectric substrate 7b can be reduced, and the isolation between the antenna 1 and the antenna 3 and the antenna 4 and the antenna 6 can be improved.
  • the two dielectric substrates include a dielectric substrate 7a and a dielectric substrate 7b.
  • the dielectric substrate 7a and the dielectric substrate 7b are located in the same azimuth plane.
  • the dielectric substrate 7a is located above the metal floor 8a, and the dielectric substrate 7b is located above the metal floor 8b.
  • the distance between the dielectric substrates is greater than or equal to a second predetermined threshold such as 40 mm, and the coupling between the antenna 1 and the antenna 3 on the dielectric substrate 7a and the antenna 4 and the antenna 6 on the dielectric substrate 7b can be reduced.
  • the four first type of PIFA antennas include: antenna 1, antenna 3, antenna 4, and antenna 6, each of the first pjpA antennas including a radiation patch, a probe type feeder, and a metal shorting pin, such as antenna 1 including a radiation patch ld , probe type feeder la and metal shorting pin lb (see description below and Figure 3 - Figure 5b).
  • a first slot is provided on the radiation patch of the first type of PIFA antenna.
  • the shape of the first slot is not limited as long as the associated antenna can be operated in a new frequency band.
  • a U-shaped slot lc is etched on the radiation patch Id of the antenna 1.
  • Two first type of PIFA antennas are disposed on each of the two dielectric substrates, and an isolation branch is disposed between the first type of PIFA antennas.
  • an antenna 1 and an antenna 3 are disposed on a dielectric substrate 7a
  • an antenna 4 and an antenna 6 are disposed on the dielectric substrate 7b
  • an isolation branch 11 and an isolation are provided between the antenna 1 and the antenna 3, and the antenna 4 and the antenna 6 are provided.
  • Branch section 12 Specifically, the isolation branch 11 and the isolation branch 12 are printed on the dielectric substrate 7a and the dielectric substrate 7b.
  • the isolation branch 11 is an E-shaped isolation branch, including a horizontal branch 111, a first longitudinal branch 112, a second longitudinal branch 113, and a third longitudinal branch 114.
  • the horizontal branch 111 is located on the side of the antenna 1 and the antenna 3 close to the dielectric substrate 7b, and is used to isolate the antenna 1 and the antenna 3 from the antenna 4 and the antenna 6.
  • the first longitudinal branch 112 is located between the antenna 1 and the antenna 3 to isolate the antenna 1 and the antenna 3; the second longitudinal branch 113 and the third longitudinal branch 114 are respectively located outside the antenna 3 and outside the antenna 1, for the antenna 1.
  • Antenna 3 is isolated from the outside world.
  • the isolation branch 12 is a T-shaped isolation branch, including a horizontal branch 121 and a longitudinal branch 122, opposite to the isolation branch 11, and the antenna 1 and the antenna 3 are wrapped in the horizontal branch 121, the horizontal branch 111 and the longitudinal branch 122, and the first longitudinal branch 112.
  • the antenna 1 on the dielectric substrate 7a and the radiation patch of the antenna 3 are disposed on the dielectric substrate 7a, and are connected to the metal floor 8a under the dielectric substrate 7a through respective probe type feed lines and metal shorting pins, respectively.
  • the radiation patch Id of the antenna 1 is connected to the metal floor 8a via a probe type feed line la and a metal shorting pin lb.
  • the radiation patches of the two first type of PIFA antennas on the dielectric substrate 7b are disposed on the dielectric substrate 7b, through the probe type feed line of the first type of PIFA antenna and the metal shorting pin and the metal floor 8b under the dielectric substrate 7b. Connected.
  • Antenna 1, Antenna 3, Antenna 4, and Antenna 6 are symmetric about the XOZ plane and the YOZ plane.
  • the multi-antenna system shown in this embodiment reduces the coupling of the antennas on the two dielectric substrates in the two frequency bands in the multi-antenna system by providing two independent dielectric substrates and two corresponding parallel independent metal floors.
  • Four symmetric first type of PIFA antennas are disposed on the dielectric substrate, and slots are provided on the antenna radiating patches to enable dual frequency bands, and isolation branches are disposed between the antennas, thereby further improving the isolation of the multi-antenna system.
  • FIG. 2 is a schematic structural diagram of a multi-antenna system according to another embodiment of the present invention. This embodiment is similar to FIG. 1 except that a second PIFA antenna, that is, an antenna 5 is disposed on the dielectric substrate 7b, and four isolation branches are provided on the dielectric substrate 7b, including two T-shaped isolation branches 9 and 2. A ⁇ -shaped isolation branch 10 (see the embodiment shown in Figure 3 below).
  • a circular isolation branch 9 is printed between the antenna 4 and the antenna 5 and between the antenna 5 and the antenna 6, which can effectively reduce the coupling of adjacent antennas at high frequencies.
  • the ⁇ -shaped isolation branch 10 is printed between the antenna 4 and the antenna 5, between the antenna 5 and the antenna 6, and the coupling of the adjacent antennas at low frequencies can be effectively reduced.
  • the antenna 5 includes a radiation patch 5d, a probe type feed line 5a and a metal shorting pin 5b.
  • the radiation patch 5d is above the dielectric substrate 7b, and the antenna 5 has a certain distance from the dielectric substrate 7b, and the adjacent antenna 4
  • the antenna 6 is not in a plane, so the coupling of the adjacent antennas 4 and 6 in the high and low frequency bands can be effectively reduced.
  • FIG. 3 is a schematic structural diagram of a multi-antenna system according to another embodiment of the present invention.
  • the multi-antenna system includes six PIFA antennas, eight isolation branches, two metal floors, and two dielectric substrates. Among them, there are four first type of PIFA antennas: antenna 1, antenna 3, antenna 4 and antenna 6, and two types of second PIFA antenna: antenna 3 and antenna 5.
  • the isolation branch includes four T-shaped isolation branches 9 and four ⁇ -shaped isolation branches 10.
  • the two metal floors include a metal floor 8a and a metal floor 8b.
  • the two dielectric substrates include a dielectric substrate 7a and a dielectric substrate 7b.
  • the dielectric substrate 7a is located above the metal floor 8a, and the dielectric substrate 7b is located above the metal floor 8b.
  • a foam supporting layer may be supported between the dielectric substrate 7a and the metal floor 8a, and between the dielectric substrate 7b and the metal floor 8b.
  • the distance between the dielectric substrate 7a and the dielectric substrate 7b is 40 mm, and the pitch of the metal floor 8a and the metal floor 8b is 30 mm, which can be adjusted by changing the pitch of the dielectric substrate 7a and the dielectric substrate 7b, the pitch of the metal floor 8a and the metal floor 8b.
  • the antenna 1, the antenna 2, and the antenna 3 are disposed on the dielectric substrate 7a, and the antenna 4, the antenna 5, and the antenna 6 are disposed on the dielectric substrate 7b.
  • the multi-antenna system provided by this embodiment is symmetric about the XOZ plane and the YOZ plane.
  • the structure and principle of the antenna 1, the antenna 3, the antenna 4, and the antenna 6 are the same.
  • the first type of PIFA antenna will be described below by taking the antenna 1 as an example. Referring to Fig. 3, the antenna 1 includes: a radiation patch ld, a probe type feed line 1a, and a metal shorting pin 1b.
  • the radiation patch Id is connected to the metal floor 8a via a probe type feed line 1a and a metal shorting pin 1b.
  • the radiation patch Id has a length of 15.1 mm and a width of 9 mm, and forms an operating frequency band of the antenna 1 in the range of 2.53 GHz to 2.62 GHz. By adjusting the size of the radiation patch Id, the low frequency working frequency band required for the antenna 1 can be obtained.
  • the radiation patch Id is etched with a U-shaped groove lc, as shown in FIG.
  • the distance C4 of the bottom edge of the patch Id is 0.6 mm
  • the U-shaped slot lc forms the operating frequency band of the antenna 1 in the range of 3.44 GHz to 3.6 GHz. By adjusting the sizes of cl and c2, the high frequency operating frequency band required by the antenna 1 can be obtained.
  • the antenna 1 covers the two bands of 2.53 GHz - 2.62 GHz and 3.44 GHz - 3.6 GHz.
  • the probe type feed line la has a radius of 0.7 mm and a height of 8.4 mm, and its center to the bottom of the radiation patch has a distance of 10.1 mm.
  • the metal shorting pin lb has a radius of 0.9 mm and a height of 8.4 mm, and its center is 3.8 mm from the center of the probe type feed line la.
  • the operating bandwidth and impedance matching characteristics of the antenna 1 can be adjusted by adjusting the radius, position, and height of the probe type feed line 1a and the metal shorting pin 1b.
  • the structure and principle of the antenna 2 and the antenna 5 are the same.
  • the antenna 5 includes a radiation patch 5d, a probe type feed line 5a, and a metal shorting pin 5b.
  • the radiation patch 5d is connected to the metal floor 8b via a probe type feed line 5a and a metal shorting pin 5b.
  • the radiation patch 5d is located above the dielectric substrate 7b, and has a large separation from the dielectric substrate 7b of 1 mm to 5 mm.
  • the radiation patch 5d has a length of 15.2 mm and a width of 10 mm, and forms an operating frequency range of 2.52 GHz to 2.63 GHz.
  • dl 9 mm
  • d2 14 mm
  • d3 lmm
  • d4 1.7 mm
  • groove width d5 of the line-shaped groove 5c.
  • d6 0.7mm
  • the line-shaped groove 5c forms an operating frequency band of the antenna 5 in the range of 3.45 GHz to 3.61 GHz.
  • the antenna 5 covers the two bands of 2.52 GHz - 2.63 GHz and 3.45 GHz - 3.61 GHz.
  • the probe type feed line 5a has a radius of 0.7 mm, a height of 10.4 mm, and a center of the radiation patch having a distance of 10.2 mm.
  • the metal shorting pin 5b has a radius of 0.9 mm and a height of 10.4 mm, and its center to the center of the probe type feeder 5a is 3.8 mm.
  • the operating bandwidth and impedance matching characteristics of the antenna 5 can be adjusted by adjusting the radius, position, and height of the probe type feed line 5a and the metal shorting pin 5b.
  • the dielectric substrate 7a has a length of 70 mm, a width of 40 mm, a height of 0.9 mm, a relative dielectric constant of 4.4, a metal floor 8a of 70 mm in length, a width of 45 mm, and a distance of 7.5 mm from the dielectric substrate 7a.
  • the operating frequency of 2 is the same as that of antenna 1 and antenna 3, so the coupling between antenna 1 and antenna 3 can be reduced, and the isolation between antenna 1 and antenna 3 can be increased.
  • the T-shaped isolation branch 9 and the inverted ⁇ -shaped isolation branch 10 are printed on the dielectric substrate 7a, and the vertical branches of the ⁇ -shaped isolation branch 9 and the inverted ⁇ -shaped isolation branch 10 are located between the antenna 1, the antenna 2 and the antenna 3, and the horizontal branches are located Antenna 1, antenna 2 and both sides of antenna 3.
  • the dove-shaped isolation branch 9 includes a horizontal branch 91 and a vertical branch 92.
  • the horizontal branch 91 abuts the upper edge of the substrate 7a, and is spaced apart from the side edge of the substrate by 1 mm.
  • the horizontal branch 91 has a length of 28 mm, a width of 1 mm, and a vertical branch 92 of 15 mm. , the width is 2mm.
  • the ⁇ -shaped isolation branch 10 is inverted, and the horizontal branch 101 is 2.9 mm away from the lower edge of the dielectric substrate 7a, and both ends of the horizontal branch 101 are in close contact with the side edge of the dielectric substrate 7a.
  • the horizontal branch 101 has a length of 33 mm and a width of 0.5 mm.
  • the first vertical branch 102 has a length of 11.5 mm and a width of 1 mm, and the second vertical branch 103 has a length of 7 mm and a width of 2.375 mm.
  • the radiation patch of the antenna is located above the dielectric substrate 7a, and has a spacing of 1 mm - 5 mm from the dielectric substrate 7a. By changing this spacing, the isolation of the antenna 1 and the antenna 2 at high frequency and low frequency, the antenna 2 and the antenna can be adjusted. 3 isolation at high frequencies and low frequencies. Since the multi-antenna system is completely symmetrical about the XOZ plane, the structure of the dielectric substrate 7b, the metal floor 8b, the antenna 3 to the antenna 6 and the isolation branch of the lower half of the multi-antenna system is the same as described above. I won't go into details here.
  • the multi-antenna system shown in this embodiment can work in the 2.53-2.62 GHz frequency band and the 3.45-3.6 GHz frequency band, and the isolation can reach below -20 dB in the working frequency band, which can meet the requirements of the new generation mobile communication system.
  • the resonant working point of the antenna can be adjusted to meet different application requirements.
  • the S-parameter simulation results for the multi-antenna system shown in Figure 3 are shown in Figures 7a to 7b and Figures 8a to 8b.
  • S11 is the impedance matching characteristic of the antenna 1
  • S22 is the impedance matching characteristic of the antenna 2
  • S33 is the impedance matching characteristic of the antenna 3
  • S12 is the isolation between the antenna 1 and the antenna 2. It can be seen that the operating frequency range of antenna 1 and antenna 3 is 2.535 GHz - 2.615 GHz, and the operating frequency range of antenna 2 is 2.528 GHz - 2.625 GHz, and S12 is lower than -20 dB.
  • S13 is the isolation between antenna 1 and antenna 3
  • S14 is the isolation between antenna 1 and antenna 4
  • S15 is the isolation between antenna 1 and antenna 6
  • S16 is antenna 1 and antenna 6.
  • the isolation between S26 is the isolation between antenna 2 and antenna 6.
  • S13, S14, S15, S16 and S26 are all lower than -20dB.
  • S11 is the impedance matching characteristic of the antenna 1
  • S22 is the impedance matching characteristic of the antenna 2
  • S33 is the impedance matching characteristic of the antenna 3
  • S12 is the isolation between the antenna 1 and the antenna 2.
  • the operating frequency range of antenna 1 and antenna 3 is 3.44 GHz - 3.6 GHz
  • the operating frequency range of antenna 2 is 3.45 GHz - 3.66 GHz
  • S12 is lower than -20 dB.
  • S13 is the isolation between antenna 1 and antenna 3
  • S14 is the isolation between antenna 1 and antenna 4
  • S15 is the isolation between antenna 1 and antenna 6
  • S16 is antenna 1 and antenna 6.
  • the isolation between S26 is the isolation between antenna 2 and antenna 6. It can be seen that S13, S14, S15, S16 and S26 are all lower than -20dB in the 3.45GHz-3.6GHz operating frequency band.
  • the 2.53GHz-2.62GHz and 3.45GHz-3.6GHz bands work well with good impedance matching.
  • the bandwidth is 2.5MHz at 2.58GHz and the impedance bandwidth is 150MHz at 3.5GHz.
  • the simulation results of the radiation direction of the multi-antenna system shown in Fig. 3 are shown in Figs. 9a to 9b and Figs. 10a to 10b.
  • FIG. 11 is a schematic structural diagram of a mobile terminal according to another embodiment of the present invention.
  • the mobile terminal shown in this embodiment includes a mobile terminal body 111 and an antenna system 112.
  • the mobile terminal body 111 is connected to the antenna system 112 and includes basic functional devices of the mobile terminal such as a processor and a memory.
  • the antenna system 112 can be any multi-antenna system provided by the foregoing embodiment, for transmitting and receiving signals to the mobile terminal body 111, and the mobile terminal body 111 processes the signals received by the antenna system 112, and generates signals to be transmitted through the antenna system 112. .
  • the mobile terminal provided by this embodiment can not only make the volume smaller by adopting the above multi-antenna system, but also can improve the communication performance of the mobile terminal by setting as many antennas as possible in a relatively small space.

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

Abstract

L'invention porte sur un système à multiples antennes et sur un terminal mobile. Une double bande est obtenue par des antennes PIFA sur des substrats de support et des rainures sur des plaques de rayonnement des antennes. Le degré d'isolation entre les antennes est amélioré par agencement d'un nœud de branche isolé entre les antennes. Le degré d'isolation entre les antennes sur les deux substrats de support est davantage amélioré par les deux substrats de support indépendants et un plancher métallique. Les antennes adoptent des antennes PIFA, de telle sorte que le système à multiples antennes et le terminal mobile peuvent augmenter le nombre d'antennes dans un espace limité autant que possible.
PCT/CN2014/073003 2013-06-28 2014-03-06 Système à multiples antennes et terminal mobile Ceased WO2014206110A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14817649.8A EP2999046B1 (fr) 2013-06-28 2014-03-06 Système à multiples antennes et terminal mobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310269571.0 2013-06-28
CN201310269571.0A CN104253303B (zh) 2013-06-28 2013-06-28 多天线系统和移动终端

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WO2014206110A1 true WO2014206110A1 (fr) 2014-12-31

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CN (1) CN104253303B (fr)
WO (1) WO2014206110A1 (fr)

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WO2016174932A1 (fr) * 2015-04-30 2016-11-03 古野電気株式会社 Dispositif d'antenne et dispositif de calcul d'orientation
CN106410406A (zh) * 2016-10-28 2017-02-15 福州大学 一种双频低剖面紧耦合高隔离度mimo天线
CN108123224A (zh) * 2018-01-30 2018-06-05 厦门美图移动科技有限公司 天线结构、电子设备背壳及电子设备
CN115764267A (zh) * 2022-10-31 2023-03-07 航天科工空间工程发展有限公司 一种半圆环型双频单极子天线
CN116565584A (zh) * 2023-04-26 2023-08-08 电子科技大学 一种宽带高增益微带滤波阵列天线
US20250105501A1 (en) * 2023-09-21 2025-03-27 Accton Technology Corporation Antenna module

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