WO2019114740A1 - 一种天线单元和天线阵列 - Google Patents

一种天线单元和天线阵列 Download PDF

Info

Publication number
WO2019114740A1
WO2019114740A1 PCT/CN2018/120530 CN2018120530W WO2019114740A1 WO 2019114740 A1 WO2019114740 A1 WO 2019114740A1 CN 2018120530 W CN2018120530 W CN 2018120530W WO 2019114740 A1 WO2019114740 A1 WO 2019114740A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
metal patch
cross
antenna unit
antenna
Prior art date
Application number
PCT/CN2018/120530
Other languages
English (en)
French (fr)
Inventor
解清明
李龙
曹国亮
施锐
耿阳
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 EP18889112.1A priority Critical patent/EP3716402B1/en
Publication of WO2019114740A1 publication Critical patent/WO2019114740A1/zh
Priority to US16/898,671 priority patent/US11322858B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
    • H01Q15/0026—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices having a stacked geometry or having multiple layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0025—Modular arrays
    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an antenna unit and an antenna array.
  • Super-surface antennas are widely used in electromagnetic communication, radar and other fields. With the continuous development and improvement of electronic wireless communication technology, both radar and communication systems expect antennas to have more functionality and adaptability. However, the traditional super-surface antenna cannot meet the requirements of dual polarization and wide bandwidth due to the characteristics of the super-surface antenna unit, and the application range is limited.
  • the phase shift curve of the existing super-surface antenna unit has poor linearity, so the working bandwidth of the super-surface antenna array is narrow.
  • the existing super-surface antenna unit operates in a dual-polarized state, and the unit cross-polarization component is large, which is inconvenient for independent regulation of electromagnetic waves of different polarizations at the same time.
  • the present application provides an antenna unit and an antenna array, which have good phase shift characteristics, can realize a wide working bandwidth, and are convenient for independent regulation of electromagnetic waves of different polarizations.
  • the present application provides an antenna unit and an antenna array, the antenna unit including an M-layer cross metal patch, an M-layer dielectric substrate, and a metal ground layer, wherein M is an integer greater than 1.
  • An i-th dielectric substrate is disposed between the i-th cross metal patch and the i+1th cross metal patch, and the i-th cross metal patch, the i-th dielectric substrate, and the i+1th cross metal paste
  • the slices are stacked in sequence, i being an integer between 1 and M-1.
  • the M-th layer cross metal patch, the M-th layer dielectric substrate, and the metal ground layer are sequentially laminated.
  • the geometric center of each layer of the cross-metal patch of the M-layer cross metal patch coincides in a horizontal plane, wherein the horizontal plane is parallel to the plane of the metal formation.
  • the cross-metal patches of the different layers of the M-layer cross metal patch are all in the same shape; or the cross-metal patches of the different layers of the M-layer cross metal patch are not completely the same; or The cross-metal patch shapes of the different layers of the M-layer cross metal patch are completely different.
  • the antenna unit can be designed to suit different needs.
  • the cross-metal patches of the different layers of the M-layer cross metal patch are the same; or, M The cross-metal patches of different layers of the cross-metal patch are not exactly the same; or the cross-metal patches of different layers of the M-layer cross metal patch are completely different in size.
  • the size of the antenna unit can be determined according to specific performance requirements.
  • the area of the i-th cross metal patch is smaller than the area of the i+1th cross metal patch.
  • the cross metal patch is two rectangular metal patches that are perpendicular to each other.
  • two rectangular metal patches that are perpendicular to each other are integrally formed, so that the antenna unit is easy to process.
  • different layers of the M-layer dielectric substrate have the same thickness; or, the thickness of the different layers of the M-layer dielectric substrate is not completely the same; or the thickness of the different layers of the M-layer dielectric substrate is completely different .
  • the antenna unit is an integrally formed multilayer printed circuit board; or the antenna unit is a plurality of single-layer printed circuit boards; or the antenna unit is a plurality of single-layer printed circuit boards and A plurality of multilayer printed circuit boards are bonded together.
  • the antenna unit provided by the present application can independently control the incident electromagnetic waves of different polarizations by adopting a cross metal patch structure, so that the antenna unit has good polarization characteristics.
  • the use of multiple layers of the cross metal patch structure can not only increase the working bandwidth but also improve the phase shift characteristics.
  • the present application further provides an antenna array, comprising the antenna unit of any of the above first aspect and the first aspect.
  • the antenna array includes a plurality of the antenna units, and the plurality of antenna units are periodically arranged.
  • the interval between two adjacent antenna elements of the plurality of periodically arranged antenna elements is D, wherein D is greater than or equal to 0.3 times the operating wavelength, and less than or equal to 0.6 times the operating wavelength. . Thereby the pattern characteristics of the antenna array are better.
  • the present application further provides an electronic device comprising the antenna unit of any of the above first aspect and the first aspect, and/or the antenna array of any of the above second aspect and the second aspect.
  • the electronic device may be a terminal or a wireless access network device.
  • FIG. 1 is a schematic diagram of an application scenario of an antenna unit according to an embodiment of the present disclosure
  • FIG. 2(a) is a front elevational view of an antenna unit 200 according to an embodiment of the present application
  • FIG. 2(b) is a top plan view of an antenna unit 200 according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a 3D structure of an antenna unit 300 according to an embodiment of the present disclosure
  • FIG. 4 is a schematic front view of an antenna unit 300 according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic top view of an antenna unit 300 according to an embodiment of the present disclosure.
  • FIG. 6 is a graph showing a reflection phase of an antenna unit 300 according to an embodiment of the present disclosure.
  • FIG. 7 is a graph showing a reflection phase of an antenna unit 300 as a function of frequency according to an embodiment of the present disclosure
  • FIG. 8 is a graph showing a reflection phase of an antenna unit 300 as a function of cross polarization size according to an embodiment of the present application.
  • FIG. 9 is a graph showing a reflection phase of an antenna unit 300 as a function of an incident angle according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an antenna array 1000 according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a simulation of an antenna array 1100 according to an embodiment of the present disclosure.
  • FIG. 12 is a graph of the directivity coefficient of the antenna array 1100 as a function of frequency according to an embodiment of the present application.
  • a terminal also called user equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • UE user equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices, and customer premise equipment (CPE), such as smart watches, smart hands. Ring, pedometer, etc.
  • MIDs mobile internet devices
  • CPE customer premise equipment
  • a radio access network (RAN) device also known as a base station, is a device that connects a terminal to a wireless network, including but not limited to: a transmission reception point (TRP), Evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (base transceiver) Station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU).
  • TRP transmission reception point
  • eNB Evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • it may also include an access network device of a next generation mobile communication, and a Wifi access point (AP) and the like.
  • AP Wif
  • Multiple means two or more, and other quantifiers are similar. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • the system shown in FIG. 1 includes an access network device 110, an antenna array 120, and a terminal 130.
  • the antenna array 120 is configured to receive electromagnetic wave signals transmitted by the access network device 110 and reflect them to the terminal 130, so that the access network device 110 and the terminal 130 can communicate with each other.
  • the antenna array 120 of FIG. 1 is used as a reflective antenna array such that the antenna array 120 can be a passive antenna array, which in turn can be referred to as a super-surface antenna array.
  • FIG. 2(a) and FIG. 2(b) are schematic structural diagrams of an antenna unit 200 provided by the present application.
  • FIG. 2(a) is a front view of the antenna unit 200
  • FIG. 2(b) is a front view.
  • the antenna unit 200 includes an M-layer cross metal patch, an M-layer dielectric substrate, and a metal ground layer, wherein M is an integer greater than one. Further, an i-th dielectric substrate is disposed between the i-th cross metal patch and the i+1th cross metal patch.
  • the i-th cross metal patch, the i-th dielectric substrate, and the i+1th cross metal patch are sequentially stacked, and i is an integer between 1 and M-1.
  • the M-th layer cross metal patch, the M-th layer dielectric substrate and the metal ground layer are laminated in this order.
  • the antenna unit 200 shown in FIG. 2 only shows the first layer of the cross metal patch 210, the first layer of the dielectric substrate 220, the Mth layer of the cross metal patch 230, the Mth layer of the dielectric substrate 240, and the metal layer 250, in the middle.
  • the i-th cross metal patch and the i-th dielectric substrate are not shown in the drawings (not shown by three omissions in the front view), where i is an integer between 1 and M-1.
  • the size and shape of the cross metal patch shown in FIG. 2 are only examples, and the present application does not limit this.
  • the thickness of the dielectric substrate shown in FIG. 2 is also an example, and the present application does not limit this.
  • the cross-metal patch structure provided by the embodiment of the present application can independently control the incident electromagnetic waves of different polarizations, so that the antenna unit 200 can have good polarization characteristics.
  • the use of multiple layers of the cross metal patch structure can not only increase the working bandwidth but also improve the phase shift characteristics.
  • the antenna array periodically arranged by the antenna unit 200 provided by the embodiment of the present application may have good phase shift characteristics.
  • FIG. 3 is a schematic diagram of a 3D structure of the antenna unit 300
  • FIG. 4 is a schematic diagram of a front view of the antenna unit 300
  • the antenna unit 300 specifically includes a first layer of cross metal patch (1), a first layer of the dielectric substrate (2), a second layer of the cross metal patch (3), a second layer of the dielectric substrate (4), and a metal layer. Formation (5).
  • the geometric center of the first layer of the cross metal patch (1) and the geometric center of the second layer of the cross metal patch (3) coincide in a horizontal plane, the horizontal plane being parallel to the plane of the metal formation.
  • the cross metal patch (3) is a regular cross metal patch structure.
  • the shape of the first layer of the cross metal patch (1) and the second layer of the cross metal patch (3) may be different, for example, the first A layer of cross metal patch (1) is a cross-metal patch with a circular arc edge, and a second layer of cross metal patch (3) is a cross-metal patch with a serrated edge. This application does not make the specific shape of the cross metal patch. limit.
  • the first layer of cross metal patch (1) or the second layer of cross metal patch (3) are two rectangular metal patches that are perpendicular to each other.
  • the two rectangular metal patches of the first layer of cross metal patch (1) or the second layer of cross metal patch (3) may be integrally formed.
  • 3 and 5 are two rectangular metal patches constituting the first layer of the cross metal patch (1) or two rectangular metal patches constituting the second layer of the cross metal patch (3), which are different in size but The geometric centers of the rectangular metal patches coincide.
  • two rectangular metal patches constituting the first layer of the cross metal patch (1) or two rectangular metal patches constituting the second layer of the cross metal patch (3) may be the same size, and the two rectangular metal stickers The geometric centers of the patches may or may not coincide. This is merely an example, and the present application does not limit this.
  • the two rectangular metal patches of the second layer of the cross metal patch (3) are respectively Lx, Ly, and have the same width and W1.
  • the two rectangular metal patches of the first layer of the cross metal patch (1) have lengths of K*Lx, K*Ly, respectively, and widths are W2, wherein K is greater than 0 and less than 1.
  • W1 is larger than W2, and therefore, the area of the first layer of the cross metal patch (1) is smaller than the area of the second layer of the cross metal patch (3).
  • the area of the first layer of the cross metal patch (1) may be greater than or equal to the area of the second layer of the cross metal patch (3), which is not limited in this application, and is merely an example.
  • the thickness of the first dielectric substrate (2) and the thickness of the second dielectric substrate (4) are different.
  • the thickness of the first dielectric substrate (2) is the same as the thickness of the second dielectric substrate (4), and the present application does not limit the second.
  • the reflection phase of the antenna unit 300 is in accordance with the change relationship of Lx and Ly described above.
  • the abscissa L can represent the relationship between the Lx and the reflected phase, and can also represent the relationship between the Ly and the reflected phase.
  • the reflected phase is the phase of the electromagnetic wave after the antenna unit 300 reflects the incident electromagnetic wave.
  • the reflection phase exhibits a tendency to change approximately linearly, that is, the phase shift curve of the antenna 300 has a good linearity, and the phase shift coverage exceeds 360°. .
  • FIG. 7 adds simulations of 26.5 GHz and 29.5 GHz. It can be seen that the three phase shift curves corresponding to the three frequency points in FIG. 7 have similar trends, and therefore, the antenna unit 300 Good phase shift linearity can be maintained over a wide operating bandwidth.
  • FIG. 9 In order to observe the relationship between the different incident angles and the reflection phase amount, on the basis of FIG. 6, FIG. 9 increases the incident angle theta to 20°, 40°, and 60° (corresponding to 20 deg, 40 deg in the figure) And 60deg) simulation results. It can be seen that the phase shift curves corresponding to the four different incident angles in FIG. 9 have similar trends. When the incident angle changes from 0° to 60°, the change of the reflection phase curve is small. Therefore, the antenna unit 300 provided by the embodiment of the present application is provided. Has a good angle of incidence stability.
  • the antenna unit 300 provided by the embodiment of the present application has better phase shift characteristics, better polarization characteristics, better incident angle stability, and wider working bandwidth.
  • the antenna unit provided in the embodiment of the present application may be periodically arranged to form an antenna array.
  • an antenna array 1000 is provided in the embodiment of the present application.
  • the antenna array shown in FIG. 10 is as described above.
  • the antenna elements 300 are periodically arranged, and the antenna array 1000 is a 4*4 antenna array, that is, the antenna array 1000 is an antenna array of 4 rows*4 columns.
  • the antenna unit constituting the antenna array 1000 may be an antenna unit of a three-layer cross metal patch, or an antenna unit of other multi-layer cross metal patches, which is not limited in this application.
  • the antenna array 1000 can be a 2 ⁇ 4 antenna array, or an 8 ⁇ 8 antenna array, or a 4 ⁇ 16 antenna array. The number and arrangement of the antenna units in the antenna array 1000 are not performed in this application. limit.
  • FIG. 11 is a simulation diagram of an antenna array 1100 according to an embodiment of the present application.
  • the antenna array 1100 is periodically arranged by the antenna unit 300 described above, and is specifically 16*.
  • the antenna array of 16 has an interval of D between adjacent antenna elements 300.
  • D in the embodiment of the present application is equal to 0.5 times the operating wavelength (not shown).
  • the abscissa Theta is the angle of the antenna beam in the horizontal direction, the unit is degree (deg), the ordinate is the value of the directivity coefficient, the unit is decibel (dB), and the solid line curve is the antenna array 1100 at the main pole.
  • the direction coefficient of the direction is in accordance with the curve of the Theta angle, that is, the direction curve of the main polarization; the dotted line curve is the curve of the directivity coefficient of the antenna array 1100 in the cross-polarization direction with the Theta angle, that is, Cross-polarized pattern curve. It can be seen that in the beam pointing direction of the array, that is, the direction of Theta is 30 deg, the (maximum) directivity coefficient is 22.5 dB, and the cross-polarization component is less than -10 dB in this direction. Therefore, the antenna array 1100 provided by the embodiment of the present application has good polarization characteristics.
  • the interval D between two adjacent antenna elements 300 of the antenna array 1100 provided by the embodiment of the present application is 0.3 times the working wavelength.
  • D may be greater than or equal to 0.3 times the working wavelength, and less than or equal to 0.6. Double the working wavelength.
  • the embodiment of the present application does not limit the size of D.
  • each antenna unit 300 in the antenna array 1100 may be the same or different.
  • the size of each antenna unit 300 in the specific antenna array 1100 may be designed according to the actual phase shift requirement. The application is in the antenna array 1100.
  • the size of each antenna unit 300 is not limited.
  • FIG. 12 further illustrates the relationship between the direction coefficient and the frequency change.
  • the abscissa is the frequency (GHz) and the ordinate is the directivity coefficient (dB).
  • dB the directivity coefficient
  • the maximum direction coefficient is 22.5 dB at the operating frequency of 28 GHz, and the 1 dB gain bandwidth ranges from 26.2 GHz to 32 GHz.
  • the relative bandwidth is about 21%. Therefore, the antenna array 1100 provided by the embodiment of the present application has a wider working bandwidth.

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

本申请提供了一种天线单元和天线阵列，天线单元包括M层十字金属贴片，M层介质基板，以及金属地层，其中，M为大于1的整数。且，第i层十字金属贴片和第i+1层十字金属贴片之间设置有第i层介质基板。第i层十字金属贴片，第i层介质基板以及第i+1层十字金属贴片依次叠层设置，i为1到M-1之间的整数。第M层十字金属贴片，第M层介质基板以及金属地层依次叠层设置。本申请提供的天线单元以及由本申请提供的单元组成的天线阵列，可以具有良好的极化特性，较宽的工作带宽以及较好的相移特性。

Description

一种天线单元和天线阵列
本申请要求于2017年12月15日提交中国国家知识产权局、申请号为201711351705.8、发明名称为“一种天线单元和天线阵列”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
本申请涉及到通信技术领域，尤其涉及到一种天线单元和天线阵列。
背景技术
超表面天线广泛地应用于电磁通信、雷达等领域。随着电子无线通信技术的不断发展和完善，雷达和通信系统都期望天线具有更多的功能性和自适应性。但是传统的超表面天线由于超表面天线单元的特性无法同时满足双极化、宽带宽的要求，应用范围受到限制。
现有的超表面天线单元的相移曲线线性度较差，所以超表面天线阵列的工作带宽较窄。另外，现有的超表面天线单元工作在双极化状态下的单元交差极化分量较大，不便于同时对不同极化的电磁波进行独立调控。
发明内容
本申请提供了一种天线单元和天线阵列，具有良好的相移特性，能够实现较宽的工作带宽，同时便于对不同极化的电磁波进行独立调控。
第一方面，本申请提供一种天线单元和天线阵列，该天线单元包括M层十字金属贴片，M层介质基板，以及金属地层，其中，M为大于1的整数。第i层十字金属贴片和第i+1层十字金属贴片之间设置有第i层介质基板，且第i层十字金属贴片，第i层介质基板以及第i+1层十字金属贴片依次叠层设置，i为1到M-1之间的整数。第M层十字金属贴片，第M层介质基板以及所述金属地层依次叠层设置。
一种实施方式中，M层十字金属贴片的每层十字金属贴片的几何中心在水平面上的投影重合，其中，所述的水平面为平行于所述金属地层的平面。从而天线单元具有更好的极化特性。
一种实施方式中，M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状；或者，M层十字金属贴片的不同层十字金属贴片的形状不完全相同；或者，M层十字金属贴片的不同层十字金属贴片形状完全不相同。从而，天线单元可以适应于不同的需求而设计。
一种实施方式中，当M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状时，M层十字金属贴片的不同层十字金属贴片的大小都相同；或者，M层十字金属贴片的不同层十字金属贴片的大小不完全相同；或者，M层十字金属贴片的不同层十字金属贴片的大小完全不相同。从而，可以根据具体的性能需求确定天线单元的大小。
一种实施方式中，当M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状时，第i层十字金属贴片的面积小于第i+1层十字金属贴片的面积。
一种实施方式中，十字金属贴片是相互垂直的两个矩形金属贴片。可选的，相互垂直 的两个矩形金属贴片是一体成型的，从而，天线单元便于加工。
一种实施方式中，M层介质基板的不同层介质板厚度都相同；或者，M层介质基板的不同层介质板厚度不完全相同；或者，M层介质基板的不同层介质板厚度完全不相同。
一种实施方式中，天线单元为一体成型的多层印刷电路板；或者，所述天线单元为多个单层印刷电路板贴合而成；或者，天线单元为多个单层印刷电路板和多个多层印刷电路板贴合而成。
可见，采用本申请提供天线单元，通过采用十字金属贴片结构可以对不同极化的入射电磁波进行独立调控，从而天线单元具有良好的极化特性。另外，采用多层所述十字金属贴片结构不仅可以增大工作带宽还可以提升相移特性。
第二方面，本申请还提供一种天线阵列，包括以上第一方面以及第一方面任一实施方式的天线单元。
一种实施方式中，该天线阵列包括多个所述的天线单元，多个所述的天线单元呈周期性排列。
一种实施方式中，所述多个呈周期性排列的天线单元的相邻两个天线单元之间的间隔为D，其中，D大于等于0.3倍的工作波长，且小于等于0.6倍的工作波长。从而使得天线阵列的方向图特性更好。
第三方面，本申请还提供一种电子设备，包括以上第一方面以及第一方面任一实施方式的天线单元，和/或以上第二方面以及第二方面任一实施方式的天线阵列。其中所述的电子设备可以是终端，也可以是无线接入网设备。
以上第二方面以及第三方面的有益效果请参照以上第一方面的描述，此处不再赘述。
附图说明
图1为本申请实施例提供的一种天线单元的应用场景图；
图2(a)为本申请实施例提供的一种天线单元200的主视示意图；
图2(b)为本申请实施例提供的一种天线单元200的俯视示意图；
图3为本申请实施例提供的一种天线单元300的3D结构示意图；
图4为本申请实施例提供的一种天线单元300的的主视示意图；
图5为本申请实施例提供的一种天线单元300的俯视示意图；
图6为本申请实施例提供的一种天线单元300反射相位曲线图；
图7为本申请实施例提供的一种天线单元300随频率变化的反射相位曲线图；
图8为本申请实施例提供的一种天线单元300随交叉极化尺寸变化的反射相位曲线图；
图9为本申请实施例提供的一种天线单元300随入射角度变化的反射相位曲线图；
图10为本申请实施例提供的一种天线阵列1000的结构示意图；
图11为本申请实施例提供的一种天线阵列1100的仿真方向图；
图12为本申请实施例提供的一种天线阵列1100的方向性系数随频率变化的曲线图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
1)、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，以及客户终端设备(customer premise equipment，CPE)，例如智能手表、智能手环、计步器等。
2)、无线接入网(radio access network，RAN)设备，又称为基站，是一种将终端接入到无线网络的设备，包括但不限于：传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(baseband unit，BBU)。此外，还可以包括下一代移动通信的接入网设备，以及Wifi接入点(access point，AP)等。
3)、“多个”是指两个或两个以上，其它量词与之类似。“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这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
下面结合图1所示的场景，对本申请实施例提供的一种天线单元的应用进行说明。图1所示的系统中，包括接入网设备110，天线阵列120和终端130。天线阵列120用于接收接入网设备110发射的电磁波信号，并反射给终端130，从而使接入网设备110和终端130之间可以通信。
可见，图1中的天线阵列120是作为反射天线阵列使用的，从而天线阵列120可以为无源天线阵列，该天线阵列120又可以称为超表面天线阵列。
本申请提供了一种天线单元及天线阵列，可以作为反射天线阵列使用。请参考图2(a)和图2(b)，其为本申请提供的一种天线单元200的结构示意图，其中，图2(a)为天线单元200的主视图，图2(b)为天线单元200的俯视图。天线单元200包括M层十字金属贴片，M层介质基板，以及金属地层，其中，M为大于1的整数。且，第i层十字金属贴片和第i+1层十字金属贴片之间设置有第i层介质基板。第i层十字金属贴片，第i层介质基板以及第i+1层十字金属贴片依次叠层设置，i为1到M-1之间的整数。第M层十字金属贴片，第M层介质基板以及金属地层依次叠层设置。图2所示的天线单元200仅仅示出了第1层十字金属贴片210，第1层介质基板220，第M层十字金属贴片230，第M层介质基板240以及金属地层250，中间的第i层十字金属贴片以及第i层介质基板图中省略未示出(主视图中以三点省略表示)，其中，i为1到M-1之间的整数。
其中，图2所示的十字金属贴片的大小以及形状仅为示例，本申请对此不做限制。另外图2所示的介质基板的厚度也为示例，本申请对此不做限制。
可见，采用本申请实施例提供的十字金属贴片结构，可以对不同极化的入射电磁波进行独立调控，从而天线单元200可以具有良好的极化特性。另外，采用多层所述十字金属贴片结构不仅可以增大工作带宽还可以提升相移特性。
进一步的，本申请实施例提供的天线单元200周期性排列而成的天线阵列可以具有良好的相移特性。
为了便于描述，以下以一种双层十字金属贴片的天线单元300为例说明，即当图2所示的天线单元200中的M等于2时的天线单元。请参考图3至图5，图3为天线单元300的3D结构示意图，图4为天线单元300的主视结构示意图，图5为天线单元300的俯视结构示意图。天线单元300具体包括依次叠层的第一层十字金属贴片(1)，第一层介质基板(2)，第二层十字金属贴片(3)，第二层介质基板(4)，金属地层(5)。
其中，第一层十字金属贴片(1)的几何中心和第二层十字金属贴片(3)的几何中心在水平面上的投影重合，所述水平面为平行于所述金属地层的平面。
为了便于比较第一层十字金属贴片(1)和第二层十字金属贴片(3)的面积关系，图3和图5所示的第一层十字金属贴片(1)和第二层十字金属贴片(3)都为规则十字金属贴片结构，可选的，第一层十字金属贴片(1)和第二层十字金属贴片(3)的形状可以不同，示例的，第一层十字金属贴片(1)为圆弧边的十字金属贴片，第二层十字金属贴片(3)为锯齿边的十字金属贴片，本申请对十字金属贴片的具体形状不做限制。
示例的，第一层十字金属贴片(1)或者第二层十字金属贴片(3)为相互垂直的两个矩形金属贴片。第一层十字金属贴片(1)或者第二层十字金属贴片(3)的两个矩形金属贴片可以是一体成型的。图3和图5所示的组成第一层十字金属贴片(1)两个矩形金属贴片或者组成第二层十字金属贴片(3)的两个矩形金属贴片，大小不同但这两个矩形金属贴片的几何中心重合。
可选的，组成第一层十字金属贴片(1)两个矩形金属贴片或者组成第二层十字金属贴片(3)的两个矩形金属贴片大小可以相同，这两个矩形金属贴片的几何中心重合也可以不重合，此处仅为示例，本申请对此不做限制。
请继续参考图5，第二层十字金属贴片(3)的两个矩形金属贴片的长度分别为Lx、Ly，宽度相等且为W1。第一层十字金属贴片(1)的两个矩形金属贴片的长度分别为K*Lx、K*Ly，宽度相等且为W2，其中，K大于0且小于1。图5可见，W1大于W2，因此，第一层十字金属贴片(1)的面积小于第二层十字金属贴片(3)的面积。
可选的，第一层十字金属贴片(1)的面积可以大于或者等于第二层十字金属贴片(3)的面积，本申请对此不做限制，此处仅为示例。
请继续参考图4可见，图中所示的第一层介质基板(2)的厚度和第二层介质基板(4)的厚度不同。可选的，第一层介质基板(2)的厚度和第二层介质基板(4)的厚度相同，本申请对次不做限制。
天线单元300的性能具体可以参见图6至图9所示的电磁仿真结果图。在电磁仿真软件HFSS中，合理设置端口和边界条件，通过全波仿真获取天线单元300工作的中心频率为28GHz。天线单元300的反射相位随以上所述的Lx，Ly的变化关系，经过仿真验证，单独调节Lx的大小同单独调节Ly天线单元300的反射相位的规律相似，因此，请参考图6，图 中的横坐标L既可以表示Lx同反射相位之间的关系，又可以表示Ly同反射相位之间的关系。所述的反射相位为天线单元300对入射电磁波进行反射后的电磁波的相位。图6可见，随着L(或者Lx，或者Ly)的增大，反射相位呈现出近似线性变化的趋势，即该天线300的相移曲线的线性度较好，且相移覆盖范围超过360°。
请进一步参考图7，在图6的基础上，图7增加了26.5GHz以及29.5GHz的仿真，可见，图7中3个频点对应的3条相移曲线的趋势相近，因此，天线单元300可以在较宽的工作带宽内保持良好的相移线性度。
请参考图8，将Lx分别固定为1mm，2.5mm以及4mm时，调节Ly时，反射相位的变化趋势，可见，图中3条相移曲线的趋势非常接近，请结合图5，,x极化方向的边长长度Lx对y极化方向的相位曲线影响很小，因此，本申请实施例提供的天线单元300具有较好的极化特性，可分别对x和y极化的反射相位进行独立调控。
另外，请参考图9，为了观察不同入射角度theta同反射相位额关系，在图6的基础上，图9增加了入射角度theta为20°，40°，以及60°(对应图中20deg，40deg以及60deg)的仿真结果。可见，图9中4个不同入射角对应的相移曲线的趋势相近，在入射角度从0°变化到60°时，反射相位曲线的变化很小，因此，本申请实施例提供的天线单元300具有较好的入射角稳定性。
综上本申请实施例提供的天线单元300具有较好的相移特性，较好的极化特性，较好的入射角稳定性以及较宽的工作带宽。
另外，本申请实施例提供的天线单元可以周期性排列组成天线阵列，请参考图10，其为本申请实施例提供的一种天线阵列1000，图10所示的天线阵列是由以上所述的天线单元300周期性排列组成的，且天线阵列1000为4*4的天线阵列，即天线阵列1000为4行*4列的天线阵列。可选的，组成天线阵列1000的天线单元可以是三层十字金属贴片的天线单元，或者其他多层十字金属贴片的天线单元，本申请对此不做限制。可选的，天线阵列1000可以为2*4的天线阵列，或者8*8的天线阵列，或者4*16的天线阵列，本申请对天线阵列1000中的天线单元的个数及排布不做限制。
请参考图11，其为本申请实施例提供的一种天线阵列1100的仿真方向图，其中，天线阵列1100是由以上所述的天线单元300周期性排布而成的，且具体为16*16的天线阵列，相邻天线单元300之间间隔为D，较优的，本申请实施例中的D等于0.5倍的工作波长(未图示)。图11中，横坐标Theta为天线波束在水平方向上的角度，单位为度(deg)，纵坐标为方向性系数值，单位为分贝(dB)，实线型曲线为天线阵列1100在主极化方向上的方向性系数大小随Theta角的变化曲线，即主极化的方向图曲线；虚线型曲线为天线阵列1100在交叉极化方向上的方向性系数大小随Theta角的变化曲线，即交叉极化的方向图曲线。可见，在该阵列的波束指向方向上，即Theta为30deg的方向上，(最大)方向性系数为22.5dB，且在该方向上交叉极化分量小于-10dB。因此，本申请实施例提供的天线阵列1100具有良好的极化特性。
可选的，本申请实施例提供的天线阵列1100的相邻两个天线单元300之间的间隔D为0.3倍的工作波长，优选的，D可以大于等于0.3倍的工作波长，且小于等于0.6倍的工作波长。本申请实施例对D的大小不做限制。
另外，天线阵列1100中的每个天线单元300的大小可以相同也可以不同，具体天线阵列1100中的每个天线单元300的大小可以根据实际移相需求而设计，本申请对天线阵列1100中的每个天线单元300的大小不做限制。
请进一步参考图12，在图11的基础上，图12进一步对方向系数随频率变化的关系进行说明。图12中的横坐标为频率(GHz)，纵坐标为方向性系数(dB)，可以看出，在工作频率28GHz时有最大方向系数为22.5dB，1dB增益带宽的范围为26.2GHz至32GHz，则相对带宽约为21％，因此本申请实施例提供的天线阵列1100具有较宽的工作带宽。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (13)

  1. 一种天线单元，其特征在于，包括M层十字金属贴片，M层介质基板，以及金属地层，其中，M为大于1的整数；
    第i层十字金属贴片和第i+1层十字金属贴片之间设置有第i层介质基板，且所述第i层十字金属贴片，所述第i层介质基板以及所述第i+1层十字金属贴片依次叠层设置，i为1到M-1之间的整数；
    第M层十字金属贴片，第M层介质基板以及所述金属地层依次叠层设置。
  2. 如权利要求1所述的天线单元，其特征在于，所述M层十字金属贴片的每层十字金属贴片的几何中心在水平面上的投影重合，其中，所述水平面为平行于所述金属地层的平面。
  3. 如权利要求1或2所述的天线单元，其特征在于，
    所述M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状；或者，
    所述M层十字金属贴片的不同层十字金属贴片的形状不完全相同；或者，
    所述M层十字金属贴片的不同层十字金属贴片形状完全不相同。
  4. 如权利要求3所述的天线单元，其特征在于，当所述M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状时，
    所述M层十字金属贴片的不同层十字金属贴片的大小都相同；或者，
    所述M层十字金属贴片的不同层十字金属贴片的大小不完全相同；或者，
    所述M层十字金属贴片的不同层十字金属贴片的大小完全不相同。
  5. 如权利要求3或4所述的天线单元，其特征在于，当所述M层十字金属贴片的不同层十字金属贴片的形状为都为同一形状时，第i层十字金属贴片的面积小于第i+1层十字金属贴片的面积。
  6. 如权利要求1至5任一所述的天线单元，其特征在于，所述十字金属贴片是相互垂直的两个矩形金属贴片。
  7. 如权利要求6所述的天线单元，其特征在于，所述相互垂直的两个矩形金属贴片是一体成型的。
  8. 如权利要求1至7任一所述的天线单元，其特征在于，
    所述M层介质基板的不同层介质板厚度都相同；或者，
    所述M层介质基板的不同层介质板厚度不完全相同；或者，
    所述M层介质基板的不同层介质板厚度完全不相同。
  9. 如权利要求1至8任一所述的天线单元，其特征在于，
    所述天线单元为一体成型的多层印刷电路板；或者，
    所述天线单元为多个单层印刷电路板贴合而成；或者，
    所述天线单元为多个单层印刷电路板和多个多层印刷电路板贴合而成。
  10. 一种天线阵列，其特征在于，包括如权利要求1至9任一项所述的天线单元。
  11. 如权利要求10所述的天线阵列，其特征在于，所述天线阵列包括多个所述天线单元，多个所述天线单元呈周期性排列。
  12. 如权利要求11所述的天线阵列，多个所述天线单元的相邻天线单元之间间隔为D， 所述D大于等于0.3倍的工作波长，且小于等于0.6倍的工作波长。
  13. 一种电子设备，其特征在于，包括以上权利要求1至9任一项所述的天线单元，和/或如权利要求10至12任一项所述的天线阵列。
PCT/CN2018/120530 2017-12-15 2018-12-12 一种天线单元和天线阵列 WO2019114740A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18889112.1A EP3716402B1 (en) 2017-12-15 2018-12-12 Antenna unit and antenna array
US16/898,671 US11322858B2 (en) 2017-12-15 2020-06-11 Antenna unit and antenna array

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711351705.8 2017-12-15
CN201711351705.8A CN109935964B (zh) 2017-12-15 2017-12-15 一种天线单元和天线阵列

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/898,671 Continuation US11322858B2 (en) 2017-12-15 2020-06-11 Antenna unit and antenna array

Publications (1)

Publication Number Publication Date
WO2019114740A1 true WO2019114740A1 (zh) 2019-06-20

Family

ID=66819223

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/120530 WO2019114740A1 (zh) 2017-12-15 2018-12-12 一种天线单元和天线阵列

Country Status (4)

Country Link
US (1) US11322858B2 (zh)
EP (1) EP3716402B1 (zh)
CN (1) CN109935964B (zh)
WO (1) WO2019114740A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113904119A (zh) * 2021-09-30 2022-01-07 南京邮电大学 一种基于超表面单元的小型化siw背腔缝隙天线
CN114597665A (zh) * 2022-03-22 2022-06-07 深圳大学 一种透射超表面阵列
CN114282432B (zh) * 2021-12-10 2024-04-19 中国人民解放军空军工程大学 基于遗传算法的多频带漫散射可激励编码超构表面系统

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109935964B (zh) * 2017-12-15 2021-04-09 华为技术有限公司 一种天线单元和天线阵列
CN112563761B (zh) * 2019-09-25 2022-07-22 上海华为技术有限公司 一种天线装置及信号处理方法
CN110829033B (zh) * 2019-10-28 2021-04-27 东南大学 高效率电磁波频率转换时域超表面
CN112886280B (zh) * 2019-11-29 2022-06-07 华为技术有限公司 一种天线系统及通信设备
CN110957582B (zh) * 2019-12-25 2021-08-06 武汉灵动时代智能技术股份有限公司 一种紧耦合小型化超材料结构
CN111224228B (zh) * 2020-01-14 2022-06-03 西安理工大学 一种双层非均匀超表面结构的阶梯型孔径耦合宽带天线
CN112242606B (zh) * 2020-12-18 2021-03-26 展讯通信（上海）有限公司 通信天线阵列及电子设备
CN114583442B (zh) * 2022-04-08 2023-05-26 展讯通信（深圳）有限公司 天线单元及全向偶极子天线
CN116154468B (zh) * 2023-04-19 2023-06-16 湖南大学 一种宽带双极化反射单元及可编程反射天线
CN116721608B (zh) * 2023-06-13 2024-03-08 云谷（固安）科技有限公司 反射面组件、显示面板和无线通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102117970A (zh) * 2011-03-18 2011-07-06 电子科技大学 一种用于时间反演通信的缺陷地结构亚波长天线阵列
CN202004159U (zh) * 2011-03-18 2011-10-05 电子科技大学 一种用于时间反演通信的缺陷地结构亚波长天线阵列
CN106207430A (zh) * 2016-07-22 2016-12-07 电子科技大学 一种新型ltcc宽频带圆极化微带贴片阵列天线
CN106229649A (zh) * 2016-07-22 2016-12-14 电子科技大学 一种基于ltcc技术的基因组单元紧凑共形阵列天线

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054953A (en) * 1998-12-10 2000-04-25 Allgon Ab Dual band antenna
ES2153323B1 (es) * 1999-06-07 2001-07-16 Univ Madrid Politecnica Reflectores planos en tecnologia impresa multicapa y su procedimiento de diseño.
KR100417063B1 (ko) * 1999-12-15 2004-02-05 티디케이가부시기가이샤 마이크로 스트립 안테나
US6239762B1 (en) * 2000-02-02 2001-05-29 Lockheed Martin Corporation Interleaved crossed-slot and patch array antenna for dual-frequency and dual polarization, with multilayer transmission-line feed network
US6396449B1 (en) * 2001-03-15 2002-05-28 The Boeing Company Layered electronically scanned antenna and method therefor
US7071889B2 (en) * 2001-08-06 2006-07-04 Actiontec Electronics, Inc. Low frequency enhanced frequency selective surface technology and applications
KR100485354B1 (ko) * 2002-11-29 2005-04-28 한국전자통신연구원 유전체 덮개를 이용한 마이크로스트립 패치 안테나 및이를 배열한 배열 안테나
US6911957B2 (en) * 2003-07-16 2005-06-28 Harris Corporation Dynamically variable frequency selective surface
WO2008148569A2 (en) * 2007-06-06 2008-12-11 Fractus, S.A. Dual-polarized radiating element, dual-band dual-polarized antenna assembly and dual-polarized antenna array
US8633856B2 (en) * 2009-07-02 2014-01-21 Blackberry Limited Compact single feed dual-polarized dual-frequency band microstrip antenna array
ES2339099B2 (es) * 2009-12-10 2010-10-13 Universidad Politecnica De Madrid Antena reflectarray de polarizacion dual lineal con propiedades de polarizacion cruzada mejoradas.
US20120218167A1 (en) * 2010-12-22 2012-08-30 Ziming He Low cost patch antenna utilized in wireless lan applications
TWI473347B (zh) * 2011-02-22 2015-02-11 Wistron Neweb Corp 平板雙極化天線
KR101982028B1 (ko) * 2012-09-21 2019-05-24 가부시키가이샤 무라타 세이사쿠쇼 편파 공용 안테나
WO2014071866A1 (zh) * 2012-11-09 2014-05-15 深圳光启创新技术有限公司 反射阵面及反射阵列天线
CN203521603U (zh) * 2013-11-07 2014-04-02 深圳光启创新技术有限公司 一种多层嵌套微结构单元、超材料板
TWI533513B (zh) * 2014-03-04 2016-05-11 啟碁科技股份有限公司 平板雙極化天線
US9520655B2 (en) * 2014-05-29 2016-12-13 University Corporation For Atmospheric Research Dual-polarized radiating patch antenna
CN105140655B (zh) 2015-07-31 2018-03-23 中国科学院国家空间科学中心 一种基于相位延迟线型反射单元的反射阵天线
CN105098345B (zh) 2015-09-14 2019-04-30 东南大学 一种采用双谐振相移单元的宽带反射阵天线
CN105470661B (zh) * 2015-11-30 2020-03-17 机比特电子设备南京有限公司 毫米波双层双频双极化平面反射阵列天线
CN105609967A (zh) * 2015-12-30 2016-05-25 成都亿豪智科技有限公司 双极化平面反射阵天线
US10651555B2 (en) * 2017-07-14 2020-05-12 Apple Inc. Multi-band millimeter wave patch antennas
CN109935964B (zh) * 2017-12-15 2021-04-09 华为技术有限公司 一种天线单元和天线阵列

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102117970A (zh) * 2011-03-18 2011-07-06 电子科技大学 一种用于时间反演通信的缺陷地结构亚波长天线阵列
CN202004159U (zh) * 2011-03-18 2011-10-05 电子科技大学 一种用于时间反演通信的缺陷地结构亚波长天线阵列
CN106207430A (zh) * 2016-07-22 2016-12-07 电子科技大学 一种新型ltcc宽频带圆极化微带贴片阵列天线
CN106229649A (zh) * 2016-07-22 2016-12-14 电子科技大学 一种基于ltcc技术的基因组单元紧凑共形阵列天线

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113904119A (zh) * 2021-09-30 2022-01-07 南京邮电大学 一种基于超表面单元的小型化siw背腔缝隙天线
CN113904119B (zh) * 2021-09-30 2024-03-15 南京邮电大学 一种基于超表面单元的小型化siw背腔缝隙天线
CN114282432B (zh) * 2021-12-10 2024-04-19 中国人民解放军空军工程大学 基于遗传算法的多频带漫散射可激励编码超构表面系统
CN114597665A (zh) * 2022-03-22 2022-06-07 深圳大学 一种透射超表面阵列
CN114597665B (zh) * 2022-03-22 2023-09-29 深圳大学 一种透射超表面阵列

Also Published As

Publication number Publication date
EP3716402A1 (en) 2020-09-30
US11322858B2 (en) 2022-05-03
EP3716402A4 (en) 2021-01-06
US20200303832A1 (en) 2020-09-24
EP3716402B1 (en) 2023-10-18
CN109935964B (zh) 2021-04-09
CN109935964A (zh) 2019-06-25

Similar Documents

Publication Publication Date Title
WO2019114740A1 (zh) 一种天线单元和天线阵列
WO2020034681A1 (zh) 天线模组及移动终端
US11973280B2 (en) Antenna element and terminal device
US9742070B2 (en) Open end antenna, antenna array, and related system and method
US10135149B2 (en) Phased array for millimeter-wave mobile handsets and other devices
US8564484B2 (en) Planar dual polarization antenna
TWI509888B (zh) 指向性天線及智慧型天線系統
US9755311B2 (en) Circularly polarized patch antennas, antenna arrays, and devices including such antennas and arrays
US9368880B2 (en) Multi-sector antenna structure
US9425513B2 (en) Lens with spatial mixed-order bandpass filter
WO2021104191A1 (zh) 天线单元及电子设备
WO2020233474A1 (zh) 天线单元和电子设备
WO2015027378A1 (zh) 宽带双极化阵列天线及基站
WO2021013010A1 (zh) 天线单元和电子设备
US10777897B2 (en) Antenna system and communication terminal
US20150295324A1 (en) Ultra-wideband antenna
US11189916B2 (en) Double-frequency antenna structure with high isolation
EP3622581B1 (en) A broadband antenna
US20230092210A1 (en) Antenna and base station
WO2020034683A1 (zh) 天线单元及天线系统
US11522270B2 (en) Solution for beam tilting associated with dual-polarized mm-Wave antennas in 5G terminals
CN102916244A (zh) 非对称偶极天线
TWI464962B (zh) 複合式多天線系統及其無線通訊裝置
Sethi et al. State-of-the-art antenna technology for cloud radio access networks (C-RANs)
US10992044B2 (en) Antenna system, communication terminal and base station

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: 18889112

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2018889112

Country of ref document: EP

Effective date: 20200624