WO2023020426A1 - Ensemble antenne et dispositif électronique - Google Patents

Ensemble antenne et dispositif électronique Download PDF

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Publication number
WO2023020426A1
WO2023020426A1 PCT/CN2022/112482 CN2022112482W WO2023020426A1 WO 2023020426 A1 WO2023020426 A1 WO 2023020426A1 CN 2022112482 W CN2022112482 W CN 2022112482W WO 2023020426 A1 WO2023020426 A1 WO 2023020426A1
Authority
WO
WIPO (PCT)
Prior art keywords
slot
isolation
antenna
antenna assembly
slot antenna
Prior art date
Application number
PCT/CN2022/112482
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English (en)
Chinese (zh)
Inventor
王超
吴鹏飞
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
Publication of WO2023020426A1 publication Critical patent/WO2023020426A1/fr

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Classifications

    • 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
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • 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

Definitions

  • the present application relates to the technical field of communication equipment, and in particular to an antenna assembly and electronic equipment.
  • antenna components which can be slot antennas.
  • antenna components When antenna components are applied to multiple frequency bands, the The problem of poor isolation between them.
  • the purpose of the present application is to provide an antenna component and an electronic device for improving the isolation of the antenna component.
  • the application provides an antenna assembly, and the antenna assembly includes:
  • the main body part is provided with a slot antenna and an isolation structure, the slot antenna includes a first slot antenna and a second slot antenna, the first slot antenna is arranged in parallel with the second slot antenna, and the isolation structure located between the first slot antenna and the second slot antenna;
  • a feed assembly includes a first feed component and a second feed component, the first feed component is arranged on the first slot antenna, and the second feed component is arranged on the first slot antenna two-slot antenna;
  • the isolation structure is provided with a first isolation slot, the first isolation slot is perpendicular to the slot antenna, and is connected with the first slot antenna and the second slot antenna, and/or, the main body
  • a second isolation slot is arranged on the upper part, and the second isolation slot is arranged parallel to the slot antenna.
  • the first isolation slot and/or the second isolation slot on the main body By setting the first isolation slot and/or the second isolation slot on the main body to block the current in different directions in the antenna component circuit, and then increase the resistance, so that the impedance of the differential mode signal and/or common mode signal can be adjusted, thereby improving the antenna The overall isolation of the component.
  • the feed structure includes at least two first isolation slots, and along the extending direction of the slot antenna, each of the first isolation slots is respectively located on two opposite sides of the slot antenna. end and symmetrical.
  • the second isolation groove is located between the two first isolation grooves, and along the extension direction of the second isolation groove, opposite ends of the second isolation groove are respectively communicate with the adjacent first isolation groove.
  • the isolation effect of the isolation structure is further enhanced, thereby improving the isolation of the antenna assembly.
  • the slot antenna is a symmetrical structure
  • the isolation structure includes two first isolation slots
  • the distances between the first isolation slots and the symmetry axis of the slot antenna are respectively 32 mm to 40 mm.
  • the differential mode signal impedance at the 2.45GHz frequency point can be adjusted.
  • the slot antenna is a symmetrical structure
  • the isolation structure includes two first isolation slots
  • the distances between the first isolation slots and the symmetry axis of the slot antenna are respectively 8 mm to 12 mm.
  • the differential mode signal impedance at the 5.5GHz frequency point can be adjusted.
  • the first slot antenna and the second slot antenna are symmetrical with respect to the extension direction of the second isolation slot.
  • the isolation effect of the second isolation slot is improved, thereby improving the overall isolation of the antenna assembly.
  • the first isolation slot communicates with the first slot antenna and the second slot antenna.
  • the current of the main body is further blocked, so as to facilitate the adjustment of the impedance of the differential mode signal at this frequency point, so as to improve the isolation of the antenna assembly Spend.
  • the slot antenna has a symmetrical structure, and the slot antenna includes a first body part and a second body part, and the first body part and the second body part are located on opposite sides of the axis of symmetry. both sides;
  • the feed assembly is located at the first body part, and the isolation structure is located at the second body part.
  • the size of the slot antenna can be reduced, which is conducive to the miniaturization of the antenna component, and is more in line with actual use requirements.
  • the isolation structure includes two first isolation slots, the first isolation slots are arranged at intervals, and the opposite ends of the second isolation slots are connected to the first isolation slots respectively.
  • the antenna assembly further includes a first capacitor, and along the extending direction of the second isolation slot, the first capacitor is electrically connected to the main body on two opposite sides of the second isolation slot.
  • the first isolation slot can simultaneously adjust the differential-mode signal impedance at 2.45GHz and 5.5GHz frequency points
  • the second isolation slot can adjust the common-mode signal impedance
  • the first capacitor is used to enhance electric field coupling and improve Signal quality.
  • the antenna assembly further includes a second capacitor and a third capacitor, the first feeding component is electrically connected to the second capacitor, and the second feeding component is connected to the The third capacitor is electrically connected.
  • the antenna component is capacitively loaded to reduce the resonant frequency, which is beneficial to further reduce the size of the slot antenna.
  • the isolation structure includes one second isolation slot and one first isolation slot, and the second isolation slot communicates with the first isolation slot and extends along the antenna In the longitudinal direction of the component, the part of the second isolation groove crosses the axis of symmetry.
  • the isolation of the antenna component at the frequency point of 5.5 GHz is better, therefore, only one first isolation slot may be provided to adjust the impedance of the differential mode signal at the frequency point of 2.45 GHz.
  • the second isolation slot can cross the axis of symmetry to better block the current, which is beneficial to adjust the impedance of the common-mode signal, thereby improving the overall isolation of the antenna assembly, and more in line with actual use requirements.
  • the distance between the second isolation slot and the first slot antenna is 10 mm to 13 mm.
  • Such a design is beneficial for the second isolation slot to block current, thereby adjusting the impedance of the common-mode signal and improving the isolation of the antenna component.
  • the antenna assembly further includes a support part, and along the thickness direction of the antenna assembly, the support part is located on one side of the main body part and is connected to the main body part.
  • the main body can be supported by the supporting part, the structural strength of the antenna assembly can be improved, and the possibility of the antenna assembly being deformed under pressure can be reduced.
  • At least part of the material of the supporting part is FR4.
  • the frequency of electromagnetic waves can be reduced by setting FR4 materials.
  • the dielectric constant of FR4 is 4.4.
  • the wavelength will decrease, which will increase the operating frequency. Therefore, at the same operating frequency of electromagnetic waves, adding medium FR4 can be beneficial. Reducing the size of the slot antenna is beneficial to the miniaturization of the antenna assembly, so that the antenna assembly can be applied to electronic devices such as mobile phones, tablet computers, and notebook computers, and is more in line with actual use requirements.
  • the present application also provides an electronic device, which includes the antenna assembly described in any one of the above items.
  • the present application provides an antenna assembly and electronic equipment, wherein the antenna assembly includes a main body and a feed assembly, the main body is provided with a first slot antenna, a second slot antenna and an isolation structure, the first feed component and the second feed assembly
  • the electrical components are respectively arranged on the first slot antenna and the second slot antenna
  • the isolation structure may include a first isolation slot perpendicular to the slot antenna, and/or, a second isolation slot parallel to the slot antenna, and the first isolation slot is used for adjusting Differential-mode signal impedance
  • the second isolation slot is used to adjust the common-mode signal impedance, by adjusting the differential-mode signal impedance and/or common-mode signal impedance to improve the overall isolation of the antenna assembly, which is conducive to improving the signal quality of the antenna and reducing the difference
  • the possibility of mutual interference between signals is more in line with actual use needs.
  • FIG. 1 is a schematic structural diagram of a first embodiment of the antenna assembly provided by the present application
  • FIG. 2 is a schematic diagram of the isolation of a prior art dual-slot antenna
  • FIG. 3 is a schematic diagram of the isolation of the first embodiment of the antenna assembly provided by the present application.
  • FIG. 4 is a schematic structural diagram of a second embodiment of the antenna assembly provided by the present application.
  • FIG. 5 is a schematic diagram of the isolation of the second embodiment of the antenna assembly provided by the present application.
  • FIG. 6 is a schematic structural diagram of a third embodiment of the antenna assembly provided by the present application.
  • FIG. 7 is a schematic diagram of the isolation of the third embodiment of the antenna assembly provided by the present application.
  • Fig. 8 is a side view of the antenna assembly provided by the present application.
  • the embodiments of the present application provide an antenna component and an electronic device, which are used to improve the isolation of the antenna component.
  • an embodiment of the present application provides an antenna assembly, wherein the antenna assembly includes a main body 1 and a feed assembly 2 .
  • the main body 1 is provided with a slot antenna.
  • the slot antenna may include a first slot antenna 11 and a second slot antenna 12 arranged parallel to each other. The lengths of the first slot antenna 11 and the second slot antenna 12 are the same or only slightly different.
  • the feeding assembly 2 includes a first feeding part 21 and a second feeding part 22, the first feeding part 21 is electrically connected to the main body part 1 on opposite sides of the first slot antenna 11, the second feeding part 22 is connected to the The main parts 1 on opposite sides of the second slot antenna 12 are electrically connected, and the feed assembly 2 is used to transmit electromagnetic waves from the closed transmission line system to the port of the antenna, and then use the antenna to radiate to free space. Specifically, it may be the opposite sides in the length direction of the slot antenna.
  • the isolation structure is disposed between the first slot antenna 11 and the second slot antenna 12 for improving the isolation of the antenna assembly.
  • the isolation structure may include the first isolation slot 13 and/or the second isolation slot 14 .
  • the first isolation slot 13 is arranged along the direction of the vertical slot antenna, and the opposite ends of the first isolation slot 13 can communicate with the first slot antenna 11 and the second slot antenna 12 respectively, and the second isolation slot 14 is arranged along the direction of the parallel slot antenna .
  • the parallel and vertical involved in the embodiments of the present application are not vertical in an absolute sense, but approximately in a parallel and vertical state. In actual processing, there may be certain angle.
  • the slot antenna extends along the length direction of the antenna assembly
  • the first isolation slot 13 extends along the width direction of the antenna assembly
  • the second isolation slot 14 extends along the length direction of the antenna assembly.
  • the first isolation slot 13 is used to prevent the transmission along the length direction of the antenna assembly. When the current in this direction decreases, the corresponding resistance will increase, so that the differential mode signal impedance of the antenna component can be improved.
  • the second isolation slot 14 can block the current transmitted by the antenna assembly along its width direction, thereby increasing the corresponding resistance, thereby adjusting the common-mode signal impedance of the antenna assembly to improve the isolation of the antenna.
  • the impedance of the differential mode signal and the common mode signal can be adjusted respectively, thereby improving the isolation of the antenna assembly.
  • the main body part 1 of the antenna assembly can be provided with a second An isolation slot 13 and a second isolation slot 14 are used to adjust the impedance of the differential mode signal and the common mode signal at the same time, so that the differential mode signal and the industrial mode signal are in the same range, so as to further improve the overall isolation of the antenna assembly, Therefore, it is beneficial to improve the signal quality of the antenna component and reduce the possibility of mutual interference between different signals.
  • the isolation structure can include a plurality of first isolation slots 13, and the first isolation slots 13 can be arranged at opposite ends of the slot antenna along the extending direction of the slot antenna, and arranged symmetrically with respect to the slot antenna, as shown in Figure 1
  • the dotted line in the figure indicates the symmetry axis of the slot antenna, and the first isolation slot 13 is arranged symmetrically about this axis.
  • a group of first isolation slots 13 arranged symmetrically about the axis are used to adjust the impedance of differential mode signals at the same frequency point, for example, along the length direction of the antenna assembly, the two first isolation slots 13 located at the outermost sides can be For adjusting the differential mode signal impedance at 2.45GHz frequency point, the two first isolation slots 13 in the middle can be used to adjust the differential mode signal impedance at 5.5GHz frequency point, the position of the first isolation slot 13 can be Adjust according to the frequency point to adjust the differential mode signal impedance corresponding to the frequency point.
  • the second isolation groove 14 may communicate with the first isolation groove 13 .
  • the overall isolation of the antenna assembly can be further improved by making the first isolation slot 13 communicate with the second isolation slot 14 , which is more in line with actual use requirements.
  • the lengths of the first slot antenna 11 and the second slot antenna 12 can be 90 mm to 100 mm, respectively, and the width is 3 mm.
  • a feeding part 21 and a second feeding part 22 are located in the middle of the first slot antenna 11 and the second slot antenna 12 respectively.
  • the antenna component can adjust the impedance of the 2.45GHz and 5.5GHz frequency points.
  • the dotted line in FIG. 1 is the symmetry axis of the antenna component, and both the slot antenna and the isolation structure can be arranged symmetrically about the axis.
  • the first isolation slot 13 for adjusting the differential mode signal at a frequency of 2.45 GHz can be set at a position 32 mm to 40 mm away from the axis of symmetry, with a width of 1 mm to 2 mm.
  • the first isolation slot 13 for adjusting the differential mode signal at a frequency of 5.5 GHz can be set at a distance of 8 mm to 12 mm from the axis of symmetry, with a width of 3 mm to 5 mm.
  • the distance between the first slot antenna 11 and the second slot antenna 12 can be 23 millimeters to 27 millimeters, and the first isolation slot 13 can communicate with the first slot antenna 11 and the second slot antenna 12, that is, the first isolation slot 13 along the A dimension in the width direction of the antenna assembly may be 23 mm to 27 mm.
  • the second isolation slot 14 is located between the first slot antenna 11 and the second slot antenna 12 , and the first slot antenna 11 and the second slot antenna 12 may be arranged symmetrically with respect to the second isolation slot 14 .
  • the length of the second isolation slot 14 can be 16 mm to 24 mm, along the width direction of the antenna assembly, the distance between the second isolation slot 14 and the first slot antenna 11 and/or the second slot antenna 12 can be 10 mm to 13 mm , the width of the second isolation groove 14 may be 1 mm to 2 mm.
  • the width of the first isolation groove 13 can be adjusted according to different frequency points. For example, in the embodiment shown in FIG. The width of the first isolation groove 13 connected with the groove 14 will change correspondingly, so as to adjust the ratio between the two frequency points.
  • Fig. 2 shows is the isolation degree schematic diagram of conventional dual-slot antenna
  • Fig. 3 is the isolation degree schematic diagram of the antenna assembly of the embodiment shown in Fig. 1 of the present application, can clearly draw from the figure, the application provided
  • the isolation of the scheme is better than the conventional double-slot antenna without isolation structure.
  • the number marks of the broken line in the figure are the selected sample points and the working frequency of the dual-band antenna.
  • points 1 and 2 are the first frequency band, among which point 5 is the first preset frequency point
  • points 3 and 4 are the second frequency band
  • point 6 is the second preset frequency point.
  • the first The preset frequency point is 2.45GHz
  • the second preset frequency point is 5.5GHz. That is, the positions marked in the schematic diagrams of each isolation degree are preset frequency points, that is, the frequency points for which the isolation degree needs to be adjusted.
  • the length of the slot antenna can be 0.5 times the wavelength, specifically, the slot antenna can be arranged symmetrically with respect to the dotted line in the figure, which extends along the width direction of the antenna assembly
  • the dotted line of is the symmetry of the slot antenna.
  • the axis of symmetry divides the slot antenna into a first body part and a second body part, wherein the first feeding part 21 and the second feeding part 22 are located in the first body part, and the isolation structure is located in the second body part. Two body parts.
  • the size of the slot antenna can be effectively reduced, and the length of the slot antenna is shortened from one wavelength to 0.5 times the wavelength, so that the overall size of the antenna component is reduced, which is beneficial for mobile phones, tablet computers, notebook computers, etc.
  • the use of the antenna component in electronic equipment is conducive to the miniaturization and thinner design of electronic equipment, and is more in line with actual use requirements.
  • the antenna assembly may further include a first capacitor 3 , the first capacitor 3 is electrically connected to the main body 1 , specifically, along the extending direction of the second isolation slot 14 , The first capacitor 3 is electrically connected to the main body 1 on opposite sides of the second isolation slot 14 .
  • Setting the first capacitor 3 can help to enhance the coupling of the electric field to improve the quality of the signal, and can further adjust the impedance of the common-mode signal to improve the isolation of the antenna component.
  • the isolation structure and the feeding part are located on the same side of the symmetry axis, that is, when the feeding part and the isolation structure are located at the first body part or the second body part at the same time, the improvement effect on the isolation of the antenna assembly is small, Therefore, in the embodiment of the present application, the feeding component and the isolation structure are arranged on opposite sides of the symmetry axis.
  • the length of the slot antenna may be 50 mm to 51 mm.
  • the feeding part can be arranged at a position of 6.5mm to 8.5mm away from the axis of symmetry.
  • the first isolation part used to adjust the impedance of the differential mode signal at the 5.5GHz frequency point can be set at a position of 1mm to 2mm away from the symmetry axis, and the width can be 2mm to 2.5mm, and is used to adjust the impedance of the 2.45GHz frequency point
  • the second isolation part of the impedance of the differential mode signal can be set at a position of 19 mm to 21 mm away from the symmetry axis, and the width can be 2 mm.
  • the second isolation groove 14 can be positioned between the two first isolation grooves 13, and communicates with the two first isolation grooves 13, and the width can be 1 millimeter, and the second isolation groove 14 is arranged at a distance of 10 millimeters to 13 from the first groove antenna 11. mm position.
  • FIG. 5 is a schematic diagram of the isolation of the embodiment provided in FIG. 4 of the present application.
  • the antenna assembly may include a second capacitor 4 and a third capacitor 5, and the first feed component 21 and the second capacitor 4 are electrically connected to form the first feed assembly 2.
  • the second feed component 22 is electrically connected with the third capacitor 5 to form the second feed assembly 2 .
  • the antenna component is capacitively loaded and the resonant frequency is reduced, which is beneficial to further reducing the size of the slot antenna, and the size of the slot antenna can be shortened to 0.3 times the wavelength.
  • the dotted line in the figure is The axis of symmetry of the slot antenna, the first feed assembly 2 and the second feed assembly 2 are located at the first body part, and part of the isolation structure is located at the second body part.
  • the second isolation slot 14 extends along a direction close to the feed assembly 2 , and a part of the second isolation slot 14 can cross the axis of symmetry.
  • the isolation of the antenna assembly at the 5.5GHz frequency point is better, therefore, only one first isolation slot 13 can be set to adjust the difference at the 2.45GHz frequency point
  • the impedance of the modulo signal can be set to adjust the difference at the 2.45GHz frequency point
  • the impedance of the modulo signal can cross the axis of symmetry to better block the current, which is beneficial to adjust the impedance of the common-mode signal, and further helps to improve the overall isolation of the antenna assembly, which is more in line with actual use requirements.
  • the length of the slot antenna may be 36 mm to 38 mm.
  • the feed assembly 2 can be arranged at a distance of 4.5 mm to 5.5 mm from the axis of symmetry.
  • the first isolation slot 13 can be set at a position of 5 mm to 7 mm from the axis of symmetry, and the width can be 1 mm.
  • the distance between the second isolation slot 14 and the first slot antenna 11 is 10 mm to 13 mm, and the width can be 1 mm. 1mm, the length can be 7mm to 9mm.
  • FIG. 7 is a schematic diagram of the isolation of the embodiment provided in FIG. 6 of the present application.
  • the antenna assembly may further include a support portion 6, which is located on one side of the main body 1 and connected to the main body 1 along the thickness direction of the antenna assembly, for Support the main body part 1 to improve the overall strength of the antenna assembly, thereby reducing the antenna It may be damaged due to extrusion and deformation.
  • the material of the supporting part 6 can be resin material, for example, FR4 can be used, and the frequency of electromagnetic waves can be reduced by setting FR4 material.
  • the dielectric constant of FR4 is 4.4, and electromagnetic waves propagate in it. When the wavelength will decrease, the working frequency will increase. Therefore, under the same working frequency of electromagnetic waves, adding dielectric FR4 can help reduce the size of the slot antenna, which is conducive to the miniaturization of the antenna component, so that the antenna component can be applied to mobile phones and tablet computers. , notebook computers and other electronic equipment, more in line with the actual needs of use.
  • the embodiment of the present application also provides an electronic device, the electronic device can be a mobile phone, a tablet computer, a notebook computer, etc., and the electronic device can include the antenna assembly involved in any of the above embodiments , since the antenna assembly has the above technical effects, the electronic equipment including the antenna assembly also has corresponding technical effects, which will not be repeated here.
  • the embodiment of the present application provides an antenna assembly and electronic equipment, wherein the antenna assembly includes a main body 1 and a feed assembly 2, the main body 1 is provided with a first slot antenna 11, a second slot antenna 12 and an isolation structure, the first The feeding part 21 and the second feeding part 22 are arranged on the first slot antenna 11 and the second slot antenna 12 respectively, and the isolation structure may include a first isolation slot 13 perpendicular to the slot antenna, and/or, parallel to the slot antenna.
  • the second isolation slot 14 the first isolation slot 13 is used to adjust the differential mode signal impedance
  • the second isolation slot 14 is used to adjust the common mode signal impedance
  • the antenna assembly can be improved by adjusting the differential mode signal impedance and/or the common mode signal impedance.
  • the overall isolation is conducive to improving the signal quality of the antenna, reducing the possibility of mutual interference between different signals, and more in line with actual use needs.

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Abstract

La présente demande concerne un ensemble antenne et un dispositif électronique. L'ensemble antenne comprend une partie corps et un ensemble d'alimentation ; la partie corps est pourvue d'une première antenne à fente, d'une seconde antenne à fente et d'une structure d'isolation ; un premier composant d'alimentation et un second composant d'alimentation sont agencés sur la première antenne à fente et la seconde antenne à fente, respectivement ; la structure d'isolation peut comprendre une première fente d'isolation perpendiculaire aux antennes à fente et/ou une seconde fente d'isolation parallèle aux antennes à fente ; et la première fente d'isolation est utilisée pour ajuster l'impédance de signal de mode différentiel, et la seconde fente d'isolation est utilisée pour ajuster l'impédance de signal de mode commun. Au moyen de l'ajustement de l'impédance de signal de mode différentiel et/ou de l'impédance de signal de mode commun, le degré global d'isolation de l'ensemble antenne est augmenté, ce qui est avantageux pour améliorer la qualité de signal des antennes, réduit la possibilité d'interférence mutuelle entre différents signaux et répond mieux aux exigences d'utilisation réelles.
PCT/CN2022/112482 2021-08-17 2022-08-15 Ensemble antenne et dispositif électronique WO2023020426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110942598.6A CN115706327A (zh) 2021-08-17 2021-08-17 一种天线组件及电子设备
CN202110942598.6 2021-08-17

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WO2023020426A1 true WO2023020426A1 (fr) 2023-02-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101789545A (zh) * 2010-01-29 2010-07-28 浙江大学 用于无线通信终端的平面多输入多输出天线
US20100238072A1 (en) * 2009-03-17 2010-09-23 Mina Ayatollahi Wideband, high isolation two port antenna array for multiple input, multiple output handheld devices
US20120176292A1 (en) * 2011-01-12 2012-07-12 Mediatek Inc. Meander Slot Antenna Structure and Antenna Module Utilizing the Same
WO2021148004A1 (fr) * 2020-01-22 2021-07-29 华为技术有限公司 Appareil d'antenne et dispositif électronique
CN114649685A (zh) * 2020-12-18 2022-06-21 英特尔公司 全金属底盘中的集成组合式开槽天线和隔离改进技术

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100238072A1 (en) * 2009-03-17 2010-09-23 Mina Ayatollahi Wideband, high isolation two port antenna array for multiple input, multiple output handheld devices
CN101789545A (zh) * 2010-01-29 2010-07-28 浙江大学 用于无线通信终端的平面多输入多输出天线
US20120176292A1 (en) * 2011-01-12 2012-07-12 Mediatek Inc. Meander Slot Antenna Structure and Antenna Module Utilizing the Same
WO2021148004A1 (fr) * 2020-01-22 2021-07-29 华为技术有限公司 Appareil d'antenne et dispositif électronique
CN114649685A (zh) * 2020-12-18 2022-06-21 英特尔公司 全金属底盘中的集成组合式开槽天线和隔离改进技术

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