WO2015139288A1 - 天线装置 - Google Patents

天线装置 Download PDF

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Publication number
WO2015139288A1
WO2015139288A1 PCT/CN2014/073820 CN2014073820W WO2015139288A1 WO 2015139288 A1 WO2015139288 A1 WO 2015139288A1 CN 2014073820 W CN2014073820 W CN 2014073820W WO 2015139288 A1 WO2015139288 A1 WO 2015139288A1
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WO
WIPO (PCT)
Prior art keywords
antenna
section
length
antenna device
segment
Prior art date
Application number
PCT/CN2014/073820
Other languages
English (en)
French (fr)
Inventor
穆乐思
索塔尼⋅萨伯
余荣道
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 ES14886066T priority Critical patent/ES2734215T3/es
Priority to CN201480076419.3A priority patent/CN106063034B/zh
Priority to PCT/CN2014/073820 priority patent/WO2015139288A1/zh
Priority to EP14886066.1A priority patent/EP3109940B1/en
Publication of WO2015139288A1 publication Critical patent/WO2015139288A1/zh
Priority to US15/270,935 priority patent/US10186784B2/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • H01Q13/106Microstrip slot antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • H01Q13/16Folded slot antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/06Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061Two dimensional planar arrays
    • H01Q21/064Two dimensional planar arrays using horn or slot aerials

Definitions

  • Embodiments of the present invention relate to the field of communications, and, more particularly, to an antenna device. Background technique
  • MIMO technology There are two design trends in MIMO technology, which are to achieve multi-frequency operation of the antenna and reduce the coupling between multiple antennas.
  • MIMO technology the coupling of the antenna is reduced by etching the slot on the radiating section of the antenna.
  • the antenna is simple and easy to implement, the impedance bandwidth is relatively narrow and the antenna radiation efficiency is low.
  • MIMO technology multiple forms of feeds are introduced on the same antenna to implement different patterns or polarization modes to reduce antenna coupling, but this structure is large in size and is only suitable for mobile devices. Big terminal. Summary of the invention
  • the embodiment of the invention provides an antenna device capable of arranging more antennas on a smaller area at a lower cost and increasing the system capacity of the antenna system.
  • an antenna device comprising a plurality of antenna elements, the antenna unit comprising a dielectric plate, a two-antenna array element and a parasitic element, the two antenna elements being located on a front side of the dielectric plate, the parasitic The component is located on the back side of the dielectric board, and the area where the two antenna array elements are located is within the range of the parasitic element region, wherein the first antenna and the second antenna of the two antenna array elements are related to the first antenna and the second antenna a central axis (L) symmetrically curved slot slot antenna between the antennas, the first antenna is connected by three segments A, B, and C.
  • L central axis
  • the A segment and the C segment are perpendicular to the B segment and are located in the B segment.
  • the A segment and the C segment are parallel to the central axis, and the first end point (A1) of the A segment is connected to the first end point (B1) of the B segment, and the first end point (C1) and B of the C segment are connected.
  • the second endpoint (B2) of the segment is connected.
  • the specific implementation is as follows:
  • the length (tl) of the longer segment of the A segment and the C segment of the first antenna ranges from 20.6 to 22.8 mm
  • the length (t3) of the shorter one of the A segment and the C segment of an antenna ranges from 12.3 to 13.7 mm
  • the length (t2) of the B segment of the first antenna ranges from 7.9 to 8.7 mm.
  • the shortest distance (dl) between two segments adjacent to the second antenna is in the range of 7.6 to 8.4 mm
  • the antenna width (d2) of the first antenna and the second antenna is in the range of 1.5. ⁇ 1.7mm.
  • the specific implementation is: length of a longer segment of the A segment and the C segment of the first antenna (t1) The value ranges from 21.7 mm.
  • the length (t3) of the shorter segment of the A segment and the C segment of the first antenna is 13 mm.
  • the length (t2) of the B segment of the first antenna is 8.3 mm.
  • the shortest distance (dl) between the two segments adjacent to the first antenna and the second antenna is 8 mm, and the antenna width (d2) of the first antenna and the second antenna is 1.6 mm.
  • the specific implementation is: the first antenna and the first Both antennas are half-wavelength slot antenna structures.
  • the specific implementation is : the feed point (Q1) of the first antenna is located in a longer segment of the A segment and the C segment of the first antenna, and is adjacent to the second end of the longer segment of the A segment and the C segment of the first antenna (A2), the feeding point (Q2) of the second antenna is symmetrical with respect to the feeding point (Q1) of the first antenna with respect to the central axis (L).
  • the specific implementation is: the second end point (A2) of the longer segment of the A segment and the C segment of the first antenna
  • the distance (t4) between the feed points (Q1) ranges from 2.8 to 3.2 mm.
  • the specific implementation is: a second end of the longer segment of the A segment and the C segment of the first antenna and the feed
  • the distance between points (t4) takes a value of 3 mm.
  • the parasitic element has a rectangular shape.
  • the specific implementation is: a range of values of the outer edge length (wl) of the parasitic element parallel to the central axis (L) 26 ⁇ 28.8mm, the rectangular outer length (pi) of the parasitic element perpendicular to the central axis (L) ranges from 30.4 to 33.6mm, and the component width (d3) of the parasitic element ranges from 0.9. ⁇ l.lmm.
  • the specific implementation is as follows: the outer edge length (wl) of the parasitic element parallel to the central axis (L) 27.4 mm, the rectangular outer length (pi) of the parasitic element perpendicular to the central axis (L) takes a value of 32 mm, and the parasitic element has a component width (d3) of 1 mm.
  • the dielectric plate is FR4, and the thickness of the dielectric plate ranges from 1.5 to 1.7 mm.
  • the specific implementation is as follows:
  • the thickness of the dielectric board is 1.6 mm.
  • the specific implementation is: the dielectric constant of the dielectric plate is 4.4.
  • the antenna device in an area of 135 mm*200 mm, the antenna device comprises 4*5 of the antenna units, wherein four rows of the antenna elements are included in a direction corresponding to a side of the antenna device of 135 mm, corresponding to a side of the antenna device of 200 mm
  • the direction includes five columns of the antenna elements, and the central axes of the two antenna elements of each of the 4*5 antenna elements are parallel to the side of the antenna device having a length of 135 mm.
  • the antenna device comprises 2*5 antenna units, wherein the antenna unit comprises 2 rows of the antenna unit in a direction corresponding to the edge of the antenna device, and corresponds to a 150 mm side of the antenna device.
  • the direction includes five columns of the antenna elements, and the central axes of the two antenna elements of each of the 2*5 antenna elements are parallel to the side of the antenna device having a length of 150 mm.
  • the antenna device of the embodiment of the present invention can arrange a plurality of antennas on a small area at a small cost by cascading a plurality of antenna elements with low auto-coupling on a small area. , increase the system capacity of the antenna system.
  • FIG. 1 is a schematic structural view of an antenna apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the front structure of an antenna unit according to an embodiment of the present invention.
  • FIG. 3 is a schematic view showing the structure of the back surface of an antenna unit according to an embodiment of the present invention.
  • FIG 4 is another schematic structural view of an antenna device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another embodiment of an antenna apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an antenna unit according to an embodiment of the present invention.
  • FIG. 7 is a diagram showing the length identification of an antenna device according to an embodiment of the present invention. detailed description
  • the embodiment of the invention proposes a high density antenna device.
  • the antenna device may include a plurality of antenna elements, and the antenna device is cascaded by a plurality of antenna elements.
  • a dielectric plate, a two-antenna array element and a parasitic element may be included, wherein two antenna elements are located on the front side of the dielectric board, parasitic elements are located on the back side of the dielectric board, and the area where the two antenna elements are located is located Within the parasitic element area.
  • the first antenna and the second antenna of the two antenna elements are curved slot antennas that are symmetric about a central axis between the first antenna and the second antenna, wherein the gap can be called but not limited to a slot.
  • An antenna is connected by three segments: A segment, B segment and C segment.
  • the A segment and the C segment are perpendicular to the B segment and are located on the same side of the B segment.
  • the A segment and the C segment are parallel to the central axis.
  • the first endpoint (A1) is coupled to the first endpoint (B1) of the B segment, and the first endpoint (C1) of the segment C is coupled to the second endpoint (B2) of the segment B.
  • the specific structure of the antenna unit in the antenna device is as shown in Figs. 2 and 3.
  • the gray part is a dielectric board, and the first antenna and the second antenna of the two antenna elements are located on the front side of the dielectric board.
  • the gray part is the dielectric board
  • the parasitic element is located on the back side of the dielectric board.
  • the area where the two antenna elements are located is located in the parasitic element area. Within the fence.
  • the dielectric plate of the antenna unit shown in FIG. 3 is identical in size to the parasitic element, in practice, since the parasitic element needs to be parasitic on the dielectric plate, the length and width of the dielectric plate are usually longer than the parasitic element, and the parasitic element is The area falls within the range of the media board.
  • first antenna and the second antenna are symmetrical about the central axis, meaning that the respective components of the two antennas are symmetrical, including antenna shape, antenna width, feed point, and the like.
  • first antenna and the second antenna of the antenna element adopt a curved slot antenna structure as shown in FIG. 1, which can make the mutual coupling degree of the antenna low, and the overall area of the antenna element is small.
  • both the first antenna and the second antenna are symmetrical about the central axis, and the overall mutual coupling degree of the antenna elements can also be reduced.
  • Signal interference between two adjacent antenna elements can be reduced by designing parasitic elements that surround the antenna elements.
  • each antenna element of the antenna device is decoupled, that is, the antenna device can add or delete several antenna elements according to the needs of the antenna.
  • the antenna device in FIG. 1 shows a multi-row multi-column (M*N) antenna unit arrangement
  • the antenna device may be arranged in a row and multiple columns according to actual needs (for example, shape limitation). (M*l) or a list of multiple rows (1*N).
  • the antenna unit in the antenna device of Fig. 1 can also be rotated at an angle, for example, by ⁇ 90. Or 180. . Specifically, rotate -90.
  • the antenna arrangement shown in Fig. 4 can be obtained, and the antenna arrangement shown in Fig. 5 can be obtained by rotating 180°.
  • the verticality referred to in the embodiments of the present invention is understood to be approximately vertical, and the angle between the two lines is 87. ⁇ 93. Between (90. ⁇ 3.) can be considered vertical, such as 88. 89. , 89.5°, 90°, 90.5°, 91°, 91.5. , and many more.
  • the parallelism mentioned in the embodiments of the present invention should be understood to be approximately parallel, and the angle between the two lines is -3. ⁇ 3. Between (0. ⁇ 3.) can be considered as parallel, for example -2. , -1. , -0.5. , 0. , 0.5. , 1. , 1.5. , and many more.
  • the coupling degree inside the antenna device can be reduced while ensuring the basic index requirements such as return loss and inter-antenna isolation, and in a small size. More antennas are arranged on the top, which makes it possible to apply large-scale antennas on mobile terminals.
  • FIG. 6 is a schematic structural diagram of an antenna unit according to an embodiment of the present invention.
  • the antenna unit can be arranged in two ways, as shown in 6-1 and 6-2 of FIG.
  • the antenna unit shown in 6-1 of FIG. 6 and the antenna unit shown in 6-2 of FIG. 6 are symmetrical about the ordinate axis.
  • the antenna unit shown in 6-1 of FIG. 6 or 6-2 of FIG. 6 is rotated by a certain angle to obtain a new antenna structure, but the essence thereof is the same as that of the antenna unit shown in 6-1 of FIG. 6 or 6-2 of FIG.
  • the antenna structure is the same.
  • the antenna unit and the antenna device according to the embodiment of the present invention are described by taking the structure of 6-1 of FIG. 6 as an example.
  • FIG. 7 is a diagram showing the length identification of an antenna device according to an embodiment of the present invention.
  • the length of the longer one of the A segment and the C segment of the first antenna is denoted by t1
  • the length of the B segment is denoted by t2
  • the segment A of the first antenna and C The length of the shorter segment of the segment is denoted as t3, and the feeding point of the first antenna is located in the longer segment of the A segment and the C segment of the first antenna, and the feeding point of the first antenna and the second end of the segment
  • the distance between the two antennas is denoted by t4, and the antenna width of the first antenna is denoted by d2; the distance between the first antenna and the second antenna is denoted by dl.
  • the value of tl ranges from 20.6 to 22.8 mm
  • the range of t2 ranges from 7.9 to 8.7 mm
  • the range of t3 ranges from 12.3 to 13.7 mm.
  • the value ranges from 7.6 to 8.4 mm
  • the value of d2 ranges from 1.5 to 1.7 mm.
  • the second antenna is symmetrical with the first antenna, and the length thereof is the same as the corresponding position of the first antenna. At this time, the mutual coupling degree of the antenna elements is low, and the occupied area is also small, so that the mutual coupling degree of the antenna unit or the final antenna device is low, and the occupied area is small.
  • the value of tl is 21.7 mm
  • the value of t2 is 8.3 mm
  • the value of t3 is 13 mm
  • the value of dl is 8 mm
  • the value of d2 is 1.6 mm.
  • the length of the group can also fluctuate up and down within a certain range, for example, ⁇ 0.5%, ⁇ 1%, ⁇ 1.5%, ⁇ 2%, ⁇ 2.5%, ⁇ 3%, ⁇ 3.5%, and many more.
  • the first antenna and the second antenna are both half-wavelength slot antenna structures.
  • the antenna array element can achieve better antenna transmission performance, so that the antenna unit or the final antenna device can achieve better antenna transmission performance.
  • the feed point of the first antenna may be located in any of the first antennas.
  • the feed point of the first antenna (Q1 in FIG. 1) is located in the longest segment of the two segments A and C (in FIG. 1, the segment A), and is close to the second end of the segment (with B)
  • the endpoints that are not connected to the segment, in Figure 1, are A2), the feed point of the second antenna (Q2 in Figure 1) and the feed point of the first antenna (Q1 in Figure 1) are symmetric about the central axis L .
  • the distance t4 between the feed point of the first antenna and the second end point of the A segment (A2 in Fig. 1) ranges from 2.8 to 3.2 mm.
  • t4 can take values of 2.9 mm, 3 mm or 3.1 mm.
  • parasitic elements are used on the back side of the dielectric board to pick up the area where the two antenna elements are located, thereby increasing the isolation between the antenna elements.
  • the parasitic element can exist in a variety of shapes, for example, Circles, rectangles, regular hexagons, and more. Of course, a circular, regular hexagon or other shape can also be used. As shown in FIG.
  • wl ranges from 26 to 28.8 mm
  • pi ranges from 30.4 to 33.6 mm
  • d3 ranges from 0.9 to 1.lmm.
  • the value of wl is 27.4 mm
  • the range of pi is 32 mm
  • the range of d3 is lmm.
  • the dielectric plate can be made of a variety of materials.
  • the dielectric plate of the antenna unit can be FR4 and its thickness ranges from 1.5 to 1.7 mm.
  • the thickness is 1.6 mm and the dielectric constant is 4.4.
  • a certain separation distance should be maintained between any two antenna elements.
  • the distance between the sides of the parasitic elements parallel to the central axis (L) of the two antenna elements can be recorded as d4, and the central axis of the two antenna elements ( L)
  • the distance between the sides of the vertical parasitic elements can be recorded as d5.
  • the values of d4 and d5 can be determined based on the actual area of the antenna device.
  • the antenna device according to the embodiment of the present invention is formed by cascading a plurality of antenna units described above.
  • the antenna unit length is 32mm and the width is 27.4mm (the peripheral length and width of the parasitic element) as an example.
  • Several layouts of the antenna device are introduced.
  • the antenna device of the present invention may include 4*5 antenna elements in an area of an iPad Mini size (ie, 200 mm*135 mm), wherein four rows of antenna elements are included in a direction corresponding to a 135 mm side of the antenna device, in the antenna device
  • the antenna device of the present invention may include 2*5 antenna elements in an area of a Samsung Note size (ie, 150 mm*85 mm), wherein 2 rows of antenna elements are included in a direction corresponding to an 85 mm side of the antenna device, in the antenna device
  • the capacity of the 20 20 MIMO system based on the antenna design was four times higher than that of the conventional 4 X 4 MIMO system.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in various embodiments of the present invention may be integrated into one processing unit
  • each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

Abstract

本发明提出了一种天线装置,包括多个天线单元,该天线单元包括介质板、一个两天线阵元和一个寄生元件,该两天线阵元位于该介质板的正面,该寄生元件位于该介质板的背面,且该两天线阵元所在区域位于该寄生元件区域范围之内,其中该两天线阵元中的第一天线和第二天线为关于该第一天线和该第二天线之间的中轴线(L)对称的弯曲缝隙slot天线,该第一天线由A段、B段、C段三段连接而成,A段、C段都垂直于B段且位于B段的同一侧,A段、C段都与该中轴线平行,A段的第一端点(A1)与B段的第一端点(B1)相连,C段的第一端点(C1)与B段的第二端点(B2)相连。本发明实施例的天线装置,能够以较小的成本在较小的面积上布置较多的天线,增加天线系统的系统容量。

Description

天线装置 技术领域
本发明实施例涉及通信领域, 并且更具体地, 涉及一种天线装置。 背景技术
在 MIMO技术中有两个设计趋势, 分别是实现天线的多频工作和降低 多个天线间的耦合。 在一种 MIMO技术中, 通过在天线辐射枝节上刻蚀细 槽来降低天线的耦合, 这种天线虽然结构筒单、 较易实现, 但一般阻抗带宽 相对较窄, 天线辐射效率较低。 在另一种 MIMO技术中在同一个天线上引 入多种形式的馈源, 实现不同的方向图或极化模式来降低天线的耦合, 但这 种结构尺寸较大, 只适合于移动设备中较大的终端。 发明内容
本发明实施例提供一种天线装置, 能够以较小的成本在较小的面积上布 置较多的天线, 增加天线系统的系统容量。
第一方面, 提供了一种天线装置, 该装置包括多个天线单元, 该天线单 元包括介质板、 一个两天线阵元和一个寄生元件, 该两天线阵元位于该介质 板的正面, 该寄生元件位于该介质板的背面, 且该两天线阵元所在区域位于 该寄生元件区域范围之内, 其中该两天线阵元中的第一天线和第二天线为关 于该第一天线和该第二天线之间的中轴线 (L)对称的弯曲缝隙 slot天线,该第 一天线由 A段、 B段、 C段三段连接而成, A段、 C段都垂直于 B段且位于 B段的同一侧, A段、 C段都与该中轴线平行, A段的第一端点 (A1 )与 B 段的第一端点(B1 )相连, C段的第一端点(C1 )与 B段的第二端点(B2 ) 相连。
结合第一方面, 在第一种可能的实现方式中, 具体实现为: 该第一天线 的 A段和 C段中较长的一段的长度(tl )取值范围为 20.6~22.8mm, 该第一 天线的 A段和 C段中较短的一段的长度(t3 )取值范围为 12.3~13.7mm, 该 第一天线的 B段的长度(t2 )取值范围为 7.9~8.7mm, 该第一天线和该第二 天线相邻的两段之间的最短距离 (dl ) 的取值范围为 7.6~8.4mm, 该第一天 线和该第二天线的天线宽度(d2 )取值范围为 1.5~1.7mm。 结合第一方面或第一方面的第一种可能的实现方式,在第二种可能的实 现方式中,具体实现为:该第一天线的 A段和 C段中较长的一段的长度(tl ) 取值范围为 21.7mm, 该第一天线的 A段和 C段中较短的一段的长度( t3 ) 取值为 13mm, 该第一天线的 B段的长度( t2 )取值为 8.3mm, 该第一天线 和该第二天线相邻的两段之间的最短距离 (dl )取值为 8mm, 该第一天线 和该第二天线的天线宽度(d2 )取值为 1.6mm。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二 种可能的实现方式, 在第三种可能的实现方式中, 具体实现为: 该第一天线 和该第二天线均为半波长 slot天线结构。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第三 种可能的实现方式中任一种可能的实现方式, 在第四种可能的实现方式中, 具体实现为: 该第一天线的馈电点 (Q1 )位于该第一天线的 A段和 C段中 较长的一段, 且靠近该第一天线的 A段和 C段中较长的一段的第二端点 ( A2 ), 该第二天线的馈电点(Q2 )与该第一天线的馈电点(Q1 )关于该中 轴线 (L )对称。
结合第一方面的第四种可能的实现方式, 在第五种可能的实现方式中, 具体实现为: 该第一天线的 A段和 C段中较长的一段的第二端点 (A2 ) 与 该馈电点 (Q1 )之间的距离 (t4 ) 的取值范围为 2.8~3.2mm。
结合第一方面的第五种可能的实现方式, 在第六种可能的实现方式中, 具体实现为: 该第一天线的 A段和 C段中较长的一段的第二端点与该馈电 点之间的距离 (t4 )取值为 3mm。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第六 种可能的实现方式中任一种可能的实现方式, 在第七种可能的实现方式中, 具体实现为: 该寄生元件的形状为矩形。
结合第一方面的第七种可能的实现方式, 在第八种可能的实现方式中, 具体实现为: 该寄生元件中与该中轴线(L )平行的矩形外边长(wl ) 的取 值范围为 26~28.8mm,该寄生元件中与该中轴线( L )垂直的矩形外边长( pi ) 的取值范围为 30.4~33.6mm, 该寄生元件的元件宽度( d3 ) 的取值范围为 0.9~l.lmm。
结合第一方面的第八种可能的实现方式, 在第九种可能的实现方式中, 具体实现为: 该寄生元件中与该中轴线(L )平行的矩形外边长(wl )取值 为 27.4mm, 该寄生元件中与该中轴线(L )垂直的矩形外边长(pi )取值为 32mm, 该寄生元件的元件宽度 ( d3 )取值为 lmm。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第九 种可能的实现方式中任一种可能的实现方式, 在第十种可能的实现方式中, 具体实现为: 该介质板为 FR4, 该介质板的厚度取值范围为 1.5~1.7mm。
结合第一方面的第十种可能的实现方式, 在第十一种可能的实现方式 中, 具体实现为: 该介质板的厚度取值为 1.6mm。
结合第一方面的第十一种可能的实现方式,在第十二种可能的实现方式 中, 具体实现为: 该介质板的介电常数为 4.4。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第十 二种可能的实现方式中任一种可能的实现方式,在第十三种可能的实现方式 中, 具体实现为: 在 135mm*200mm的面积上, 该天线装置包括 4*5个该天 线单元,其中在该天线装置 135mm的边对应的方向上包括 4排该天线单元, 在该天线装置 200mm的边对应的方向上包括 5列该天线单元, 4*5个该天 线单元中的每一个天线单元的两天线阵元的中轴线都平行于该天线装置中 长度为 135mm的边。
结合第一方面或第一方面的第一种可能的实现方式至第一方面的第十 二种可能的实现方式中任一种可能的实现方式,在第十四种可能的实现方式 中, 具体实现为: 在 85*150mm的面积上, 该天线装置包括 2*5个该天线单 元, 其中在该天线装置 85mm的边对应的方向上包括 2排该天线单元, 在该 天线装置 150mm的边对应的方向上包括 5列该天线单元, 2*5个该天线单 元中的每一个天线单元的两天线阵元的中轴线都平行于该天线装置中长度 为 150mm的边。
基于以上技术方案, 本发明实施例的天线装置, 通过在较小面积上级联 多个自耦度较低的天线阵元,从而能够以较小的成本在较小的面积上布置较 多的天线, 增加天线系统的系统容量。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图 仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造 性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例天线装置的结构示意图。
图 2是本发明实施例天线单元的正面结构示意图。
图 3是本发明实施例天线单元的背面结构示意图。
图 4是本发明实施例天线装置的另一结构示意图。
图 5是本发明实施例天线装置的再一结构示意图。
图 6是本发明实施例天线单元的结构示意图。
图 7是本发明实施例天线装置的长度标识图。 具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提出了一种高密度天线装置。
图 1是本发明实施例天线装置 100的结构示意图。 如图 1所示, 天线装 置可包括多个天线单元, 天线装置由多个天线单元级联而成。 在一个天线单 元中, 可包括介质板、 一个两天线阵元和一个寄生元件, 其中, 两天线阵元 位于介质板的正面, 寄生元件位于介质板的背面, 且两天线阵元所在区域位 于该寄生元件区域范围之内。该两天线阵元中的第一天线和第二天线为关于 该第一天线和该第二天线之间的中轴线对称的弯曲缝隙天线, 其中缝隙英文 可以筒称但不限于为 slot, 该第一天线由 A段、 B段、 C段三段连接而成, A段、 C段都垂直于 B段且位于 B段的同一侧, A段、 C段都与该中轴线平 行, A段的第一端点 (A1 )与 B段的第一端点 (B1 )相连, C段的第一端 点 ( C1 )与 B段的第二端点 ( B2 )相连。
天线装置中的天线单元的具体结构如图 2和图 3所示。
图 2是本发明实施例天线单元的正面结构示意图。 其中, 灰色部分为介 质板, 两天线阵元中的第一天线和第二天线都位于介质板的正面。
图 3是本发明实施例天线单元的背面结构示意图。 其中, 灰色部分为介 质板, 寄生元件位于介质板的背面。
结合图 2、 图 3可以看出, 两天线阵元所在区域位于该寄生元件区域范 围之内。 另外, 虽然图 3中示出的天线单元的介质板与寄生元件大小一致, 但实际上, 由于寄生元件需要寄生在介质板上, 介质板的长和宽通常会比寄 生元件长, 寄生元件的区域都落入介质板的范围之内。
另外, 应理解, 第一天线和第二天线关于中轴线对称, 是指两个天线的 各个组成部分都对称, 包括天线形状、 天线宽度、 馈电点等等。
另外, 天线阵元的第一天线和第二天线采用如图 1所示的弯曲的 slot天 线结构, 能够使得天线的互耦度较低, 并且使得天线阵元的整体面积较小。 另外, 第一天线和第二天线都关于中轴线对称, 也能够降低天线阵元的整体 互耦度。
通过设计将天线阵元包围的寄生元件,可以降低相邻的两个天线阵元之 间的信号干扰。
应理解, 天线装置的每个天线单元之间是解耦合的, 也就是说天线装置 可才 据天线的需要, 增加或删除若干个天线单元。
应理解, 虽然图 1中的天线装置示出了多排多列(M*N )的天线单元布 置方式, 但根据实际情况的需要(例如, 形状的限制), 天线装置可布置成 一排多列 (M*l )或一列多排(1*N ) 的形式。
应理解, 图 1的天线装置中的天线单元, 还可以旋转一定角度放置, 例 如旋转 ± 90。 或 180。 。具体地,旋转 -90。 可得到图 4所示的天线布置方式, 旋转 180° 可得到图 5所示的天线布置方式。
应理解, 本发明实施例所提到的垂直, 应理解为近似垂直, 两条线的夹 角在 87。 ~93。 之间 (90。 ± 3。 )都可以认为是垂直, 例如 88。 、 89。 、 89.5° 、 90° 、 90.5° 、 91° 、 91.5。 , 等等。 类似地, 本发明实施例所提到 的平行, 应理解为近似平行, 两条线的夹角在 -3。 ~3。 之间 (0。 ± 3。 )都 可以认为是平行, 例如 -2。 、 -1。 、 -0.5。 、 0。 、 0.5。 、 1。 、 1.5。 , 等等。
本发明实施例中, 通过将多个上述天线单元级联形成天线装置, 在保证 回程损耗、 天线间隔离度等基本指标要求的同时, 能够减少天线装置内部的 耦合度, 并在较小的尺寸上布置较多的天线, 从而使得大规模天线在移动终 端上的应用成为可能。
图 6是本发明实施例天线单元的结构示意图。 在具体的应用中, 天线单 元可以有 2种布置方式, 如图 6的 6-1和 6-2所示。 其中, 图 6的 6-1所示 的天线单元和图 6的 6-2所示的天线单元关于纵坐标轴对称。 当然, 还可对 图 6的 6-1或图 6的 6-2所示的天线单元旋转一定角度得到新的天线结构, 但其实质与图 6的 6-1或图 6的 6-2所示的天线单元的天线结构相同。 本发 明实施例中, 以图 6的 6-1的结构为例, 对本发明实施例的天线单元及天线 装置进行描述。
图 7是本发明实施例天线装置的长度标识图。 如图 7所示, 天线单元的 两天线阵元中, 第一天线的 A段和 C段中较长的一段的长度记为 tl , B段 长度记为 t2, 第一天线的 A段和 C段中较短的一段的长度记为 t3 , 第一天 线的馈电点位于第一天线的 A段和 C段中较长的一段, 第一天线的馈电点 与该段的第二端点之间的距离记为 t4,第一天线的天线宽度记为 d2; 第一天 线与第二天线之间的距离记为 dl。
可选地, 在天线单元的两天线阵元中, tl的取值范围为 20.6~22.8mm, t2的取值范围为 7.9~8.7mm, t3的取值范围为 12.3~13.7mm, dl的取值范围 为 7.6~8.4mm, d2的取值范围为 1.5~1.7mm。 第二天线与第一天线对称, 其 长度取值与第一天线的对应位置的取值相同。此时,天线阵元的互耦度较低, 占用的面积也较小,使得天线单元或最终的天线装置互耦度低, 占用面积小。
优选地,优选地, tl取值为 21.7mm, t2取值为 8.3mm, t3取值为 13mm, dl取值为 8mm, d2取值为 1.6mm。 此时, 天线阵元的互耦度和面积能够取 得较好的仿真效果。 另外, 在实际的应用中, 该组长度还可在一定范围内上 下波动, 例如, ± 0.5%, ± 1%, ± 1.5%, ± 2% , ± 2.5% , ± 3%, ± 3.5%, 等等。
可选地,天线单元的两天线阵元中,第一天线和第二天线均为半波长 slot 天线结构。 通过采用半波长 slot天线结构, 天线阵元能够取得较好的天线发 射性能, 使得天线单元或最终的天线装置能够取得较好的天线发射性能。
可选地, 第一天线的馈电点可位于第一天线中的任意一段。 优选地, 第 一天线的馈电点 (图 1中, 为 Q1 )位于 A、 C两段中最长的一段(图 1中, 为 A段), 且靠近该段的第二端点(与 B段不相连的端点, 图 1中, 为 A2 ), 第二天线的馈电点(图 1中, 为 Q2 )与第一天线的馈电点(图 1中, 为 Q1 ) 关于中轴线 L对称。 第一天线的馈电点与 A段的第二端点(图 1中, 为 A2 ) 的距离 t4的取值范围为 2.8~3.2mm,优选地, t4可取值 2.9mm、 3mm或 3.1mm。
另外, 在介质板的背面采用寄生元件将两天线阵元所在区域圏起来, 可 增大天线单元之间的隔离度。 可选地, 寄生元件可以存在多种形状, 例如, 圓形、 矩形、 正六边形, 等等。 当然, 也可以采用圓形、 正六边形或其它形 状。 如图 7所示, 当寄生元件为矩形时, 寄生元件中与中轴线 L平行的矩形 外边长记为 wl , 寄生元件中与中轴线 L平行的矩形内边长记为 w2, 寄生元 件中与中轴线 L垂直的矩形外边长记为 pi , 寄生元件中与中轴线 L垂直的 矩形内边长记为 p2, 寄生元件的元件宽度记为 d3。 其中, wl=w2+2*d3 , pl=p2+2*d3。
可选地, 作为一个实施例, 当寄生元件为矩形, wl 的取值范围为 26~28.8mm, pi的取值范围为 30.4~33.6mm, d3的取值范围为 0.9~l.lmm。 优选地, wl取值为 27.4mm, pi的取值范围为 32mm, d3的取值范围为 lmm。
另外, 介质板可采用多种材质。 例如, 天线单元的介质板可以是 FR4, 其厚度取值范围为 1.5~1.7mm。 优选地, 其厚度取值为 1.6mm, 介电常数为 4.4。
另外, 在对天线单元进行级联的过程中, 任意两个天线单元之间应保持 一定的间隔距离。 如图 7所示, 相邻的两个天线单元中, 与两天线阵元的中 轴线(L )平行的寄生元件的边之间的距离可记为 d4, 与两天线阵元的中轴 线(L )垂直的寄生元件的边之间的距离可记为 d5。 d4和 d5的取值可根据 天线装置的实际面积确定。
本发明实施例的天线装置, 由多个上面所述的天线单元级联而成。 以天 线单元长为 32mm、 宽为 27.4mm (寄生元件的外围长宽) 为例, 对天线装 置的几种布局进行介绍。
在 iPad Mini大小 (即 200mm*135mm ) 的面积上, 本发明的天线装置 可包括 4*5个天线单元, 其中在天线装置的 135mm的边对应的方向上包括 4排天线单元, 在天线装置的 200mm的边对应的方向上包括 5列天线单元, 且该 4*5个天线单元中每一个天线单元的两天线阵元的中轴线都平行于天线 装置中长度为 135mm 的边。 也就是说, 本发明的天线装置可在 200mm* 135mm 的面积上布置 5*4*2=40 个天线。 此时 d4 最大取值为 ( 200-32*5 ) / ( 5-1 ) =10mm; d5最大取值为 ( 135-27.4*4 ) / ( 4-1 ) =8.4mm。 如果考虑到天线装置边缘也应预留一定的空间, d4最大取值为 (200-32*5 ) /5=8mm; d5最大取值为 ( 135-27.4*4 ) /4=6.3mm。
在实验环境中, 测基于该天线设计的 40 40 MIMO系统容量相对于传 统的 4 x 4 MIMO系统容量有 7倍的提升。 在 Samsung Note大小 (即 150mm*85mm ) 的面积上, 本发明的天线装 置可包括 2*5个天线单元,其中在天线装置的 85mm的边对应的方向上包括 2排天线单元, 在天线装置的 150mm的边对应的方向上包括 5列天线单元, 且该 2*5个天线单元中每一个天线单元的两天线阵元的中轴线都平行于天线 装置中长度为 150mm的边。也就是说,本发明的天线装置可在 150mm*85mm 布置 5*2*2=20个天线。 此时 d4最大取值为 ( 85-32*2 ) / ( 2-1 ) =21mm; d5 最大取值为 ( 150-27.4*5 ) / ( 5-1 ) =3.2mm。 如果考虑到天线装置边缘也应 预留一定的空间, d4 最大取值为 ( 85-32*2 ) /2=10.5mm; d5 最大取值为 ( 150-27.4*5 ) /5 =2.6mm。
在实验环境中, 测基于该天线设计的 20 20 MIMO系统容量相对于传 统的 4 X 4 MIMO系统容量有 4倍的提升。
本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特 定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能, 但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁, 上述描 述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。 而前 述的存储介质包括: U盘、移动硬盘、只读存储器( ROM, Read-Only Memory )、 随机存取存储器(RAM, Random Access Memory ), 磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明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发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权利要求
1、 一种天线装置, 其特征在于, 所述天线装置包括多个天线单元, 所 述天线单元包括介质板、 一个两天线阵元和一个寄生元件, 所述两天线阵元 位于所述介质板的正面, 所述寄生元件位于所述介质板的背面, 且所述两天 线阵元所在区域位于所述寄生元件区域范围之内, 其中
所述两天线阵元中的第一天线和第二天线为关于所述第一天线和所述 第二天线之间的中轴线(L )对称的弯曲缝隙 slot天线, 所述第一天线由 A 段、 B段、 C段三段连接而成, A段、 C段都垂直于 B段且位于 B段的同一 侧, A段、 C段都与所述中轴线平行, A段的第一端点(A1 )与 B段的第一 端点 (B1 )相连, C段的第一端点 (C1 )与 B段的第二端点 (B2 )相连。
2、 如权利要求 1所述的天线装置, 其特征在于, 所述第一天线的 A段 和 C段中较长的一段的长度(tl )取值范围为 20.6~22.8mm, 所述第一天线 的 A段和 C段中较短的一段的长度(t3 )取值范围为 12.3~13.7mm, 所述第 一天线的 B段的长度( t2 )取值范围为 7.9~8.7mm, 所述第一天线和所述第 二天线相邻的两段之间的最短距离 (dl ) 的取值范围为 7.6~8.4mm, 所述第 一天线和所述第二天线的天线宽度(d2 )取值范围为 1.5~1.7mm。
3、 如权利要求 2所述的天线装置, 其特征在于, 所述第一天线的 A段 和 C段中较长的一段的长度(tl )取值范围为 21.7mm, 所述第一天线的 A 段和 C段中较短的一段的长度( t3 )取值为 13mm, 所述第一天线的 B段的 长度(t2 )取值为 8.3mm, 所述第一天线和所述第二天线相邻的两段之间的 最短距离(dl )取值为 8mm,所述第一天线和所述第二天线的天线宽度( d2 ) 取值为 1.6mm。
4、 如权利要求 1至 3任一项所述的天线装置, 其特征在于, 所述第一 天线和所述第二天线均为半波长 slot天线结构。
5、 如权利要求 1至 4任一项所述的天线装置, 其特征在于, 所述第一 天线的馈电点 ( Q1 )位于所述第一天线的 A段和 C段中较长的一段, 且靠 近所述第一天线的 A段和 C段中较长的一段的第二端点(A2 ), 所述第二天 线的馈电点(Q2 )与所述第一天线的馈电点(Q1 )关于所述中轴线(L )对 称。
6、 如权利要求 5所述的天线装置, 其特征在于, 所述第一天线的 A段 和 C段中较长的一段的第二端点( A2 )与所述馈电点( Q1 )之间的距离( t4 ) 的取值范围为 2.8~3.2mm。
7、 如权利要求 6所述的天线装置, 其特征在于, 所述第一天线的 A段 和 C段中较长的一段的第二端点与所述馈电点之间的距离( t4 )取值为 3mm。
8、 如权利要求 1至 7任一项所述的天线装置, 其特征在于, 所述寄生 元件的形状为矩形。
9、 如权利要求 8所述的天线装置, 其特征在于, 所述寄生元件中与所 述中轴线(L )平行的矩形外边长(wl ) 的取值范围为 26~28.8mm, 所述寄 生元件中与所述中轴线 (L ) 垂直的矩形外边长 (pi ) 的取值范围为 30.4~33.6mm, 所述寄生元件的元件宽度( d3 ) 的取值范围为 0.9~l.lmm。
10、 如权利要求 9所述的天线装置, 其特征在于, 所述寄生元件中与所 述中轴线(L )平行的矩形外边长(wl )取值为 27.4mm, 所述寄生元件中 与所述中轴线(L )垂直的矩形外边长(pi )取值为 32mm, 所述寄生元件 的元件宽度(d3 )取值为 lmm。
11、 如权利要求 1至 10任一项所述的天线装置, 其特征在于, 所述介 质板为 FR4, 所述介质板的厚度取值范围为 1.5~1.7mm。
12、 如权利要求 11 所述的天线装置, 其特征在于, 所述介质板的厚度 取值为 1.6mm。
13、 如权利要求 11或 12所述的天线装置, 其特征在于, 所述介质板的 介电常数为 4.4。
14、 如权利要求 1 至 13 任一项所述的天线装置, 其特征在于, 在 135mm*200mm的面积上, 所述天线装置包括 4*5个所述天线单元, 其中在 所述天线装置 135mm的边对应的方向上包括 4排所述天线单元, 在所述天 线装置 200mm的边对应的方向上包括 5列所述天线单元, 4*5个所述天线 单元中的每一个天线单元的两天线阵元的中轴线都平行于所述天线装置中 长度为 135mm的边。
15、 如权利要求 1 至 13 任一项所述的天线装置, 其特征在于, 在 85*150mm的面积上, 所述天线装置包括 2*5个所述天线单元, 其中在所述 天线装置 85mm的边对应的方向上包括 2排所述天线单元,在所述天线装置 150mm的边对应的方向上包括 5列所述天线单元, 2*5个所述天线单元中的 每一个天线单元的两天线阵元的中轴线都平行于所述天线装置中长度为 150mm的边。
PCT/CN2014/073820 2014-03-21 2014-03-21 天线装置 WO2015139288A1 (zh)

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ES14886066T ES2734215T3 (es) 2014-03-21 2014-03-21 Dispositivo de antena
CN201480076419.3A CN106063034B (zh) 2014-03-21 2014-03-21 天线装置
PCT/CN2014/073820 WO2015139288A1 (zh) 2014-03-21 2014-03-21 天线装置
EP14886066.1A EP3109940B1 (en) 2014-03-21 2014-03-21 Antenna apparatus
US15/270,935 US10186784B2 (en) 2014-03-21 2016-09-20 Antenna apparatus

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EP3109940A4 (en) 2017-02-22
US20170012362A1 (en) 2017-01-12
CN106063034A (zh) 2016-10-26
EP3109940B1 (en) 2019-05-15

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