WO2022006986A1 - 一种叠层天线及终端设备 - Google Patents
一种叠层天线及终端设备 Download PDFInfo
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- WO2022006986A1 WO2022006986A1 PCT/CN2020/102728 CN2020102728W WO2022006986A1 WO 2022006986 A1 WO2022006986 A1 WO 2022006986A1 CN 2020102728 W CN2020102728 W CN 2020102728W WO 2022006986 A1 WO2022006986 A1 WO 2022006986A1
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- antenna
- substrate
- radiation unit
- radiating element
- stacked
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- 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 utility model relates to an antenna, in particular to a stacked antenna and terminal equipment.
- the first antenna radiating element 2 and the second antenna radiating element 3 are arranged on the upper surface of the topmost substrate 1, and pass through holes or blind holes. Connect the antenna to the internal transmission line of the mobile terminal device.
- the space reserved for setting the antenna is getting smaller and smaller.
- the size of the antenna can be reduced, But this will inevitably affect the performance of the antenna.
- the distance between the antennas can be reduced, but this will affect the isolation between the antennas.
- one of the objectives of the present invention is to provide a stacked antenna, which can maintain the performance of the antenna while reducing the space occupied by the antenna.
- the second purpose of the present invention is to provide a terminal device that can maintain the performance of the antenna while reducing the space occupied by the antenna.
- a laminated antenna the laminated antenna includes a substrate, one or more antenna radiating elements, and a feeding part for feeding the one or more antenna radiating elements; each antenna radiating element includes a plurality of antenna radiating element elements , at least two of the plurality of antenna radiating element elements are arranged on different surfaces of the substrate by stacking up and down; the feeder is arranged on the substrate and is electrically connected to each antenna radiating element ; wherein, a plurality of antenna radiation unit elements arranged in a stack are electrically connected.
- the stacked antenna radiating element elements are at least partially facing each other.
- At least part of the antenna radiating element elements disposed opposite to each other are electrically connected through metallized through holes.
- the stacked antenna includes one or more layers of the substrate; when the stacked antenna includes one layer of the substrate, a plurality of antenna radiating element elements of each antenna radiating unit are respectively arranged on two of the substrates Surface; when the stacked antenna is a multilayered substrate, the multiple antenna radiating element elements of each antenna radiating unit are arranged on different surfaces of the multilayered substrate.
- the stacked antenna includes a multi-layer substrate
- the multi-layer substrates are laminated by means of lamination.
- the substrate is a flexible substrate.
- each layer of the substrate is a single-sided copper-clad substrate or a double-sided copper-clad substrate.
- the second purpose of the present utility model adopts the following technical scheme to realize:
- a terminal device the terminal device includes a stacked antenna adopted as one of the objectives of the present invention.
- the utility model utilizes the principle of changing plane space from height to space, and divides the antenna radiating element arranged on the surface of the substrate into a plurality of antenna radiating element elements, and stacks the plurality of antenna radiating element elements on the substrate, so that the The plane space occupied by the antenna radiating unit on the substrate is greatly reduced, the plane layout of the antenna is reduced, and the requirement of the space reserved for the antenna by the existing terminal equipment is gradually reduced.
- FIG. 1 is a schematic diagram of a traditional antenna structure made of a flexible substrate
- FIG. 2 is a schematic structural diagram of a stacked antenna of the present invention
- FIG. 3 is a comparison diagram of the return loss of the first antenna radiating element in the laminated antenna provided by the present invention and the first antenna radiating element in the conventional antenna;
- Fig. 4 is the efficiency comparison diagram of the first antenna radiating element in the laminated antenna provided by the present invention and the first antenna radiating element in the conventional antenna;
- FIG. 5 is a comparison diagram of the return loss of the second antenna radiating element in the stacked antenna provided by the present invention and the second antenna radiating element in the conventional antenna;
- Fig. 6 is the efficiency comparison diagram of the second antenna radiating element in the laminated antenna provided by the present invention and the second antenna radiating element in the conventional antenna;
- FIG. 7 is a comparison diagram of the isolation degree of the two antenna radiating elements in the stacked antenna provided by the present invention and the isolation degree of the two antenna radiating elements in the conventional antenna.
- the utility model provides a laminated antenna, which comprises a substrate, one or more antenna radiating units and a feeding part for feeding the one or more antenna radiating units.
- each antenna radiation unit includes a plurality of antenna radiation unit elements, and at least two antenna radiation unit elements among the plurality of antenna radiation unit elements are stacked on different surfaces of the substrate.
- a plurality of antenna radiation unit elements are electrically connected.
- the antenna radiating unit in the present invention can be a high-frequency antenna radiating unit or a low-frequency antenna radiating unit.
- the present invention does not make any changes to the antenna type, but only changes the setting method of the antenna radiating unit on the substrate. . That is, a traditional antenna radiating element arranged on a substrate is divided into a plurality of antenna radiating element elements that are stacked on top of each other on the substrate. Among them, a plurality of antenna radiation unit elements form an antenna radiation unit.
- the stacked antenna radiating element elements are at least partially facing each other.
- the present invention provides a preferred embodiment.
- the stacked antenna includes a substrate 1, a first antenna radiating unit 2, a second antenna radiating unit 3, a ground plate 6, and the first antenna radiating unit 2, The feeder 4 to which the second antenna radiating element 3 is fed.
- the first antenna radiation unit 2 includes a first antenna radiation unit element group 21 and a second antenna radiation unit element group 22 arranged in layers.
- the first antenna radiation unit element group 21 includes a first antenna radiation unit element 211 and a second antenna radiation unit element 212 provided on one surface of the substrate 1
- the second antenna radiation unit element group 22 includes a The third antenna radiating element element 221 on the other surface.
- the first antenna radiating element 211 and the third antenna radiating element 221 are disposed at least partially facing each other.
- the second antenna radiation unit 3 includes a third antenna radiation unit element group 31 and a fourth antenna radiation unit element group 32 arranged in layers.
- the third antenna radiation unit element group 31 includes a fourth antenna radiation unit element 311 and a fifth antenna radiation unit element 312 provided on one surface of the substrate 1
- the fourth antenna radiation unit element group 32 includes a The sixth antenna radiating element element 321 of the other surface.
- the fourth antenna radiation unit element 311 and the sixth antenna radiation unit element 321 are disposed at least partially facing each other.
- the present invention splits one or more antenna radiating elements arranged on the plane of the traditional substrate 1 into a plurality of antenna radiating element elements, and then stacks the plurality of antenna radiating element elements on the surface of the substrate 1 in sequence, so as to make the antenna
- the plane space occupied by the radiating unit on the substrate 1 is greatly reduced, and the plane layout of the antenna is reduced under the condition that the performance of the original antenna is not reduced, which satisfies the increasing reduction of the installation space reserved for the antenna by the existing terminal equipment. small needs.
- the first antenna radiating unit 2 and the second antenna radiating When the size of the substrate 1 is reduced, the first antenna radiating unit 2 and the second antenna radiating The reduction of the size of the unit 3 or the reduction of the distance between them is not conducive to the improvement of the antenna performance or the improvement of the antenna isolation.
- each antenna radiating unit can be The plane space occupied on the substrate 1 is greatly reduced, and the plane layout of the antenna is reduced under the condition that the performance of the antenna is not reduced. isolation.
- the stacked antenna includes a layer of substrate 1 or is composed of multiple layers of substrates 1 .
- the multi-layer substrate 1 is laminated by means of pressing.
- the stacked antenna includes a layer of substrate 1
- a plurality of antenna radiation element elements of one antenna radiation element are arranged on two surfaces of the substrate 1, that is, at least two antenna radiation element elements of the plurality of antenna radiation element elements
- the layers are stacked on different surfaces of the substrate 1 .
- the first antenna radiation unit element 211 and the second antenna radiation unit element 212 in the first antenna radiation unit element group 21 are arranged on one surface of the substrate 1, and the second antenna radiation unit element 211 and the second antenna radiation unit element 212 are arranged on one surface of the substrate 1.
- the third antenna radiation unit element 221 in the antenna radiation unit element group 22 is arranged on the other surface of the substrate 1; wherein, the first antenna radiation unit element 211 is stacked on the third antenna radiation unit element 221, and the first The antenna radiation unit element 211 and the third antenna radiation unit element 221 are disposed at least partially facing each other.
- the fourth antenna radiation unit element 311 and the fifth antenna radiation unit element 312 in the third antenna radiation unit element group 31 are arranged on one surface of the substrate 1, and the fourth antenna radiation unit element
- the sixth antenna radiation unit element 321 in the group 32 is provided on the other surface of the substrate 1; wherein, the fourth antenna radiation unit element 311 is stacked on the sixth antenna radiation unit element 321, and the fourth antenna radiation unit element 311 At least part of the sixth antenna radiating element element 321 is directly opposite.
- the through holes 5 are metallized through holes.
- the metallized through holes pass through the substrate 1 and are respectively electrically connected with the corresponding antenna radiating element elements on the two surfaces of the substrate 1 .
- the first antenna radiation element 211 and the third antenna radiation element 221 in this embodiment are electrically connected through the through hole 5
- the fourth antenna radiation element 311 and the sixth antenna radiation element 321 are electrically connected through the through hole 5 connect.
- the stacked antenna When the stacked antenna includes the multilayer substrate 1 , a plurality of antenna radiating element elements of one antenna radiating unit are separately arranged on the surfaces of the different layer substrates 1 . That is: at least two of the multiple antenna radiating element elements are stacked on the surfaces of different layers of substrate 1, or on different surfaces of one layer of substrate 1; and, the stacked antenna radiating element elements are at least Parts are arranged in the opposite direction and are electrically connected through the through holes 5 .
- each layer of the substrate 1 in the multi-layer substrate 1 may be a single-sided copper clad laminate or a double-sided copper clad laminate, which can be set according to actual needs.
- each antenna radiation unit only includes two layers of antenna radiation unit element groups, and the two layers of antenna radiation unit element groups are respectively arranged on two layers of one layer of substrate 1 .
- each antenna radiating element group includes one or two antenna radiating element elements.
- each antenna radiating element in the present invention may include three or more layers of antenna radiating element element groups, wherein each antenna radiating element element group includes one or more antenna radiating elements element.
- at least two antenna radiating element elements in the antenna radiating element element group disposed on the adjacent layers are at least partially facing each other and are electrically connected through the through holes 5 .
- the multi-layer antenna radiating element groups are arranged on corresponding surfaces of different substrates 1 .
- the utility model divides an antenna radiating unit into a plurality of antenna radiating unit elements, and stacks some of the antenna radiating unit elements in the plurality of antenna radiating unit elements, so that the antenna radiating unit on a plane can occupy the space of the antenna radiating unit.
- the plane space of the substrate 1 is greatly reduced, which adapts to the current situation that the installation space reserved for the antenna by the existing terminal equipment is getting smaller and smaller.
- the substrate 1 in the present invention is a flexible substrate.
- the antennas are arranged on the surface of the substrate 1 in a stacked manner, that is, the principle of replacing the plane space with a height space, so that the plane space occupied by each antenna radiating element disposed on the substrate 1 is greatly reduced , to meet the requirement in the prior art that the space reserved for the antenna by the terminal device is getting smaller and smaller. That is, under the circumstance that the space occupied by the antenna is limited, the size of the antenna can be increased by the stacking method provided by the present invention, and the performance of the antenna can be improved; Decrease, relatively increase the separation distance between multiple antenna radiation units, and improve the isolation degree of the antenna.
- the present invention does not specifically limit the structure and type of the antenna radiating unit on the substrate 1.
- the antenna radiating unit may be high-frequency or low-frequency.
- the present invention only splits the antenna radiating unit to form multiple antennas. radiation unit elements, and then stack a plurality of antenna radiation unit elements up and down on the surface of the substrate 1 in sequence, and electrically connect a plurality of antenna radiation unit elements in different layers.
- the present invention also specifically provides test curves for the antenna performance, return loss and isolation of the stacked antenna provided in this embodiment.
- FIG. 3 shows a comparison diagram of the return loss of the first antenna radiating element in the stacked antenna provided by the present invention and the first antenna radiating element in the conventional antenna.
- the curve S11 in FIG. 3 represents the return loss of the first antenna radiating element of the stacked antenna provided by the present invention
- the curve S12 represents the return loss of the first antenna radiating element in the conventional antenna. It can be seen from the curves S11 and S12 of FIG. 3 that the return loss of the first antenna radiating element in the stacked antenna of the present invention is comparable to the return loss performance of the traditional first antenna radiating element.
- FIG. 4 is a diagram showing the efficiency comparison between the first antenna radiating element in the stacked antenna provided by the present invention and the first antenna radiating element in the conventional antenna.
- the curve S13 in FIG. 4 represents the efficiency of the first antenna radiating element in the stacked antenna provided by the present invention
- the curve S14 represents the efficiency of the first antenna radiating element in the conventional antenna. It can be seen from the curve S13 and the curve S14 in FIG. 4 that the efficiency of the first antenna radiating element in the laminated antenna board provided by the present invention is relatively high.
- curve S21 and the curve S22 respectively represent the return loss of the second antenna radiating element in the stacked antenna provided by the present invention, and the echo of the second antenna radiating element in the traditional antenna.
- Loss; curve S23 and curve S24 respectively represent the efficiency of the second antenna radiating element in the stacked antenna provided by the present invention and the efficiency of the second antenna radiating element in the conventional antenna. It can be seen from Figures 5-6 that the return loss and efficiency of the second antenna radiating element in the stacked antenna provided by the present invention are the same as those of the second antenna radiating element in the traditional antenna. performance.
- FIG. 7 is a comparison diagram showing the isolation degree of the first antenna radiating element and the second antenna radiating element in the laminated antenna of the present invention, and the isolation degree of the first antenna radiating element and the second antenna radiating element in the conventional antenna.
- the curve S15 in FIG. 7 represents the isolation degree between the first antenna radiating element and the second antenna radiating element in the laminated antenna provided by the present invention
- the curve S25 represents the first antenna radiating element and the second antenna in the conventional antenna. Radiation unit isolation. It can be seen from the curve S15 and the curve S25 of FIG. 7 that the isolation degree of the first antenna radiating element and the second antenna radiating element in the stacked antenna provided by the present invention is relatively higher.
- the present invention further provides the second embodiment, a terminal device, where the terminal device includes the laminated antenna provided in the first embodiment.
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Abstract
本申请公开了一种叠层天线,包括基板、设于基板上的一个或多个天线辐射单元以及为一个或多个天线辐射单元馈电的馈电部;每个天线辐射单元均包括多个天线辐射单元元件,所述多个天线辐射单元元件中至少有两个天线辐射单元元件上下层叠设置于所述基板的不同表面上;馈电部设于基板上,并与每个天线辐射单元电性连接;层叠设置的多个天线辐射单元元件之间电性连接。本申请通过将传统平面设于基板上的天线辐射单元划分为多个天线辐射单元元件,并将多个天线辐射单元元件的部分层叠设置于基板上,使得天线辐射单元在基板上所占的平面空间大大降低,满足现有终端设备预留给天线的安装空间日益减小的需求。本申请还提供了一种终端设备。
Description
本实用新型涉及天线,尤其涉及一种叠层天线及终端设备。
以柔性基板制作天线的现有技术中,如图1所示,一般将诸如第一天线辐射单元2、第二天线辐射单元3设于最顶层基板1的上表面,并通过通孔或盲孔将天线与移动终端设备的内部传输线连接。但是,随着现有的终端设备,特别是移动终端设备的轻薄化、功能复杂化,预留的用以设置天线的空间越来越小,这种情况下一方面可以减小天线的尺寸,但这必然会影响天线性能,另一方面可以减小天线间的距离,但这会影响天线间的隔离度。
为了克服现有技术的不足,本实用新型的目的之一在于提供一种叠层天线,能够在减小天线的占用空间的同时保持天线的性能。
本实用新型的目的之二在于提供一种终端设备,能够在减小天线的占用空间的同时保持天线的性能。
本实用新型的目的之一采用如下技术方案实现:
一种叠层天线,所述叠层天线包括基板、一个或多个天线辐射单元以及为一个或多个天线辐射单元馈电的馈电部;每个天线辐射单元均包括多个天线辐射单元元件,所述多个天线辐射单元元件中至少有两个天线辐射单元元件上下层叠设置于所述基板的不同表面上;所述馈电部设于基板上,并与每个天线辐射单元电性连接;其中,叠层设置的多个天线辐射单元元件之间电性连接。
进一步地,层叠设置的天线辐射单元元件至少部分正对设置。
进一步地,至少部分正对设置的天线辐射单元元件通过金属化通孔电性连接。
进一步地,所述叠层天线包括一层或多层所述基板;当叠层天线包括一层所述基板时,每个天线辐射单元的多个天线辐射单元元件分设于所述基板的两个表面;当叠层天线为多层所述基板时,每个天线辐射单元的多个天线辐射单元元件分设于多层所述基板的不同表面。
进一步地,当叠层天线包括多层基板时,多层基板通过压合的方式叠层设置。
进一步地,所述基板为柔性基板。
进一步地,所述叠层天线包括多层基板时,每层基板为单面覆铜基板或双面覆铜基板。
本实用新型的目的之二采用如下技术方案实现:
一种终端设备,所述终端设备包括如本实用新型目的之一采用的一种叠层天线。
相比现有技术,本实用新型的有益效果在于:
本实用新型利用高度空间换平面空间的原理,将设于基板表面上的天线辐射单元拆分成多个天线辐射单元元件,并将多个天线辐射单元元件以上下层叠设置于基板上,从而可大大降低天线辐射单元在基板上所占的平面空间,减少了天线的平面布局,满足了现有终端设备预留给天线的空间日益减小的需求。
图1为传统的以柔性基板制作的天线结构示意图;
图2为本实用新型的叠层天线结构示意图;
图3为本实用新型提供的叠层天线中的第一天线辐射单元与传统天线中的第一天线辐射单元的回波损耗对比图;
图4为本实用新型提供的叠层天线中的第一天线辐射单元与传统天线中的第一天线辐射单元的效率对比图;
图5为本实用新型提供的叠层天线中的第二天线辐射单元与传统天线中的第二天线辐射单元的回波损耗对比图;
图6为本实用新型提供的叠层天线中的第二天线辐射单元与传统天线中的第二天线辐射单元的效率对比图;
图7为本实用新型提供的叠层天线中的两个天线辐射单元的隔离度与传统天线中两个天线辐射单元的隔离度的对比图。
图中:1、基板;2、第一天线辐射单元;3、第二天线辐射单元;4、馈电部;5、通孔;6、接地板;21、第一天线辐射单元元件组;22、第二天线辐射单元元件组;211、第一天线辐射单元元件;212、第二天线辐射单元元件;221、第三天线辐射单元元件;31、第三天线辐射单元元件组;32、第四天线辐射单元元件组;311、第四天线辐射单元元件;312、第五天线辐射单元元件;321、第六天线辐射单元元件。
下面,结合附图以及具体实施方式,对本实用新型做进一步描述,需要说明的是,在不相冲突的前提下,以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
本实用新型提供了一种叠层天线,叠层天线包括基板、一个或多个天线辐射单元以及为一个或多个天线辐射单元馈电的馈电部。
其中,每个天线辐射单元包括多个天线辐射单元元件,并且多个天线辐射单元元件中至少有两个天线辐射单元元件上下层叠设于基板的不同表面上。
其中,多个天线辐射单元元件之间电性连接。
优选地,本实用新型中的天线辐射单元可以是高频天线辐射单元,也可以低频天线辐射单元,本实用新型不针对天线类型做任何改变,只是针对天线辐射单元在基板上的设置方式进行改变。也即是,将传统的平面设于基板上的一个天线辐射单元拆分成多个上下层叠设于基板上的多个天线辐射单元元件。其中,多个天线辐射单元元件组成一个天线辐射单元。
优选地,层叠设置的天线辐射单元元件至少部分正对设置。
如图2所示,本实用新型提供了一优选的实施例,叠层天线包括基板1,第一天线辐射单元2,第二天线辐射单元3,接地板6以及为第一天线辐射单元2、第二天线辐射单元3馈电的馈电部4。
其中,如图2所示,第一天线辐射单元2包括层叠设置的第一天线辐射单元元件组21和第二天线辐射单元元件组22。优选地,第一天线辐射单元元件组21包括设于基板1的一个表面的第一天线辐射单元元件211和第二天线辐射单元元件212,第二天线辐射单元元件组22包括设于基板1的另一个表面的第三天线辐射单元元件221。
第一天线辐射单元元件211与第三天线辐射单元元件221至少部分正对设置。
第二天线辐射单元3包括层叠设置的第三天线辐射单元元件组31、第四天线辐射单元元件组32。
同理,第三天线辐射单元元件组31包括设于基板1的一个表面的第四天线辐射单元元件311和第五天线辐射单元元件312,第四天线辐射单元元件组32包括设于基板1的另一个表面的第六天线辐射单元元件321。
第四天线辐射单元元件311与第六天线辐射单元元件321至少部分正对设置。
本实用新型将传统的基板1上平面设置的一个或多个天线辐射单元拆分成多个天线辐射单元元件,然后将多个天线辐射单元元件依次层叠设于基板1的表面上,从而使得天线辐射单元在基板1上所占的平面空间大大减小,在基本保证不降低原有天线性能的情况下,减少了天线的平面布局,满足了现有终端设备预留给天线的安装空间日益减小的需求。如本实施例提供的基板1上的第一天线辐射单元2、第二天线辐射单元3。从图1中可知,第一天线辐射单元2以及第二天线辐射单元3的多个振子均平面铺设于基板1上,当基板1的尺寸减小时,第一天线辐射单元2以及第二天线辐射单元3的尺寸减小或二者的距离减小,不利于天线性能的提升或天线隔离度的提升。从图2中可知,由于本实用新型将第一天线辐射单元2以及第二天线辐射单元3均拆分成层叠设于基板1表面的多个天线辐射单元元件,从而可使得每个天线辐射单元在基板1上所占的平面空间大大减小,在基本保证不降低天线性能的情况下,减小了天线的平面布局,同时相对增加了相邻天线辐射单元之间的距离,提升了天线的隔离度。
优选地,叠层天线包括一层基板1或由多层基板1复合而成。其中,当叠层天线包括多层基板1时,多层基板1通过压合的方式叠层设置。
当叠层天线包括一层基板1时,一个天线辐射单元的多个天线辐射单元元件分设于基板1的两个表面,也即是,多个天线辐射单元元件中的至少两个天线辐射单元元件层叠设于基板1的不同表面上。如本实施例给出的第一天线辐射单元2:第一天线辐射单元元件组21中的第一天线辐射单元元件211、第二天线辐射单元元件212设于基板1的一个表面,将第二天线辐射单元元件组22中的第三天线辐射单元元件221设于基板1的另一个表面;其中,将第一天线辐射单元元件211层叠设于第三天线辐射单元元件221上,并且,第一天线辐射单元元件211与第三天线辐射单元元件221至少部分正对设置。同理,对于第二天线辐射单元3:第三天线辐射单元元件组31中的第四天线辐射单元元件311、第五天线辐射单元元件312设于基板1的一个表面,第四天线辐射单元元件组32中的第六天线辐射单元元件321设于基板1的另一个表面;其中,将第四天线辐射单元元件311层叠设于第六天线辐射单元元件321上,并且第四天线辐射单元元件311与第六天线辐射单元元件321至少部分正对设置。
优选地,设于基板1的不同表面的至少部分正对设置的天线辐射单元元件之间通过通孔5电性连接。优选地,通孔5为金属化通孔。该金属化通孔穿过基板1并分别与基板1的两个表面的对应天线辐射单元元件电性连接。如本实施例中的第一天线辐射单元元件211与第三天线辐射单元元件221通过通孔5电性连接,第四天线辐射单元元件311与第六天线辐射单元元件321通过通孔5电性连接。
当叠层天线包括多层基板1时,一个天线辐射单元的多个天线辐射单元元件分设于不同层基板1的表面。也即是:多个天线辐射单元元件中至少有两个天线辐射单元元件层叠设于不同层基板1的表面上、或者一层基板1的不同表面上;并且,层叠设置的天线辐射单元元件至少部分正对设置并通过通孔5电性连接。
优选地,当叠层天线包括多层基板1时,多层基板1中的每层基板1可以是单面覆铜板,也可以是双面覆铜板,具体可根据实际的需求进行设置。
其中,本实用新型提供的实施例中,如图2所示,每个天线辐射单元仅包括两层天线辐射单元元件组,并且两层天线辐射单元元件组分别设于一层基板1的两个表面,每个天线辐射单元元件组内包括一个或两个天线辐射单元元件。优选地,在其他实施例中,本实用新型中的每个天线辐射单元可包括三层或更多层天线辐射单元元件组,其中,每个天线辐射单元元件组包括一个或多个天线辐射单元元件。同时,相邻层设置的天线辐射单元元件组中的至少两个天线辐射单元元件至少部分正对设置并通过通孔5电性连接。多层天线辐射单元元件组分设于不同基板1的对应表面上。
本实用新型通过将一个天线辐射单元拆分成多个的天线辐射单元元件,并将多个天线辐射单元元件中的部分天线辐射单元元件层叠设置,可将处于一个平面上的天线辐射单元所占基板1的平面空间大大降低,适应现有的终端设备预留给天线的安装空间越来越小的现状。
同时,由于每个天线辐射单元在基板1上的所占平面空间减小,相对增加基板1上的多个天线辐射单元中的间隔距离,提高了叠层天线中不同天线辐射单元的隔离度。
优选地,本实用新型中的基板1为柔性基板。
通过本实用新型将天线以叠层设置的方式设于基板1的表面上,即以高度空间代替平面空间的原理,使得设于基板1上的每个天线辐射单元所占用的平面空间大大减小,满足现有技术中由于终端设备预留给天线的空间越来越小的需求。也即是,在天线所占空间有限的情况下,可通过本实用新型提供的叠设方法增加天线的尺寸,提升天线性能;同时,由于每个天线辐射单元在基板1上所占的平面空间减小,相对增加多个天线辐射单元之间的间隔距离,提高了天线的隔离度。
本实用新型对于基板1上天线辐射单元的结构、类型均不做具体限制,比如天线辐射单元可以是高频的、也可以是低频的,本实用新型只是将天线辐射单元拆分形成多个天线辐射单元元件,然后将多个天线辐射单元元件上下依次层叠设于基板1的表面上,并且将不同层的多个天线辐射单元元件电性连接即可。
优选地,本实用新型还具体给出了针对本实施例提供的叠层天线的天线性能、回波损耗以及隔离度的测试曲线。如图3表示本实用新型提供的叠层天线中的第一天线辐射单元与传统天线中的第一天线辐射单元的回波损耗对比图。其中,图3中的曲线S11表示本实用新型提供的叠层天线的第一天线辐射单元的回波损耗,曲线S12表示传统天线中的第一天线辐射单元的回波损耗。从图3的曲线S11与曲线S12可以看出,本实用新型中的叠层天线中的第一天线辐射单元的回波损耗与传统的第一天线辐射单元的回波损耗性能相当。
如图4表示本实用新型提供的叠层天线中的第一天线辐射单元与传统天线中的第一天线辐射单元的效率对比图。其中,图4中的曲线S13表示本实用新型提供的叠层天线中的第一天线辐射单元的效率,曲线S14表示传统天线中的第一天线辐射单元的效率。从图4中的曲线S13与曲线S14可以看出,本实用新型提供的叠层天线板中的第一天线辐射单元的效率相对较高。
同理,如图5-6所示,曲线S21、曲线S22分别表示本实用新型提供的叠层天线中的第二天线辐射单元的回波损耗、传统天线中的第二天线辐射单元的回波损耗;曲线S23、曲线S24分别表示本实用新型提供的叠层天线中的第二天线辐射单元的效率、传统天线中的第二天线辐射单元的效率。从图5-6中可以看出,本实用新型提供的叠层天线中的第二天线辐射单元的回波损耗以及效率相较于传统天线中的第二天线辐射单元来说,均具有相同的性能。
如图7表示本实用新型的叠层天线中的第一天线辐射单元与第二天线辐射单元的隔离度、以及传统天线中的第一天线辐射单元与第二天线辐射单元的隔离度的对比图。其中,图7中的曲线S15表示本实用新型提供的叠层天线中的第一天线辐射单元与第二天线辐射单元的隔离度,曲线S25表示传统天线中的第一天线辐射单元与第二天线辐射单元的隔离度。从图7的曲线S15与曲线S25可以看出,本实用新型提供的叠层天线中的第一天线辐射单元与第二天线辐射单元的隔离度相对更高。
实施例二
基于实施例一,本实用新型还提供了实施例二,一种终端设备,该终端设备包括如实施例一提供的一种叠层天线。
上述实施方式仅为本实用新型的优选实施方式,不能以此来限定本实用新型保护的范围,本领域的技术人员在本实用新型的基础上所做的任何非实质性的变化及替换均属于本实用新型所要求保护的范围。
Claims (8)
- 一种叠层天线,其特征在于,所述叠层天线包括基板、一个或多个天线辐射单元以及为一个或多个天线辐射单元馈电的馈电部;每个天线辐射单元均包括多个天线辐射单元元件,所述多个天线辐射单元元件中至少有两个天线辐射单元元件上下层叠设置于所述基板的不同表面上;所述馈电部设于基板上,并与每个天线辐射单元电性连接;其中,叠层设置的多个天线辐射单元元件之间电性连接。
- 根据权利要求1所述一种叠层天线,其特征在于,层叠设置的天线辐射单元元件至少部分正对设置。
- 根据权利要求2所述一种叠层天线,其特征在于,至少部分正对设置的天线辐射单元元件通过金属化通孔电性连接。
- 根据权利要求1所述一种叠层天线,其特征在于,所述叠层天线包括一层或多层所述基板;当叠层天线包括一层所述基板时,每个天线辐射单元的多个天线辐射单元元件分设于所述基板的两个表面;当叠层天线为多层所述基板时,每个天线辐射单元的多个天线辐射单元元件分设于多层所述基板的不同表面。
- 根据权利要求4所述一种叠层天线,其特征在于,当叠层天线包括多层基板时,多层基板通过压合的方式叠层设置。
- 根据权利要求1所述一种叠层天线,其特征在于,所述基板为柔性基板。
- 根据权利要求3所述一种叠层天线,其特征在于,所述叠层天线包括多层基板时,每层基板为单面覆铜基板或双面覆铜基板。
- 一种终端设备,其特征在于,所述终端设备包括如权利要求1-7中任一项所述的一种叠层天线。
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US6195051B1 (en) * | 1999-04-08 | 2001-02-27 | Motorola, Inc. | Microstrip antenna and method of forming same |
US6727855B1 (en) * | 2002-11-21 | 2004-04-27 | The United States Of America As Represented By The Secretary Of The Army | Folded multilayer electrically small microstrip antenna |
CN1601807A (zh) * | 2003-09-26 | 2005-03-30 | 富士康(昆山)电脑接插件有限公司 | 平面倒f形天线及其制造方法 |
EP2028717A1 (en) * | 2007-08-23 | 2009-02-25 | Research In Motion Limited | Multi-band antenna apparatus disposed on a three-dimensional substrate |
CN202094283U (zh) * | 2011-05-11 | 2011-12-28 | 国基电子(上海)有限公司 | 多层天线 |
CN110797633A (zh) * | 2018-08-03 | 2020-02-14 | 东莞市新盛电子有限公司 | 一种WiFi双频天线 |
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US6195051B1 (en) * | 1999-04-08 | 2001-02-27 | Motorola, Inc. | Microstrip antenna and method of forming same |
US6727855B1 (en) * | 2002-11-21 | 2004-04-27 | The United States Of America As Represented By The Secretary Of The Army | Folded multilayer electrically small microstrip antenna |
CN1601807A (zh) * | 2003-09-26 | 2005-03-30 | 富士康(昆山)电脑接插件有限公司 | 平面倒f形天线及其制造方法 |
EP2028717A1 (en) * | 2007-08-23 | 2009-02-25 | Research In Motion Limited | Multi-band antenna apparatus disposed on a three-dimensional substrate |
CN202094283U (zh) * | 2011-05-11 | 2011-12-28 | 国基电子(上海)有限公司 | 多层天线 |
CN110797633A (zh) * | 2018-08-03 | 2020-02-14 | 东莞市新盛电子有限公司 | 一种WiFi双频天线 |
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