CN1674357A - 圆极化阵列天线 - Google Patents
圆极化阵列天线 Download PDFInfo
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Abstract
本发明涉及圆极化阵列天线,它包括:由至少一套补片(10)构成的组(6),用于辐射和/或接收圆极化电磁波;馈线(3)的网络,每条馈线(3)连接到并沿纵向或垂直地延伸到所述一套补片(10),用于传送来自所述一套补片(10)的信号能量或将信号能量传送到所述一套补片(10),其中,连接到由各套补片(10)构成的组(6)的每组馈线(3)指向不同于其它馈线(3)组指向的方向,以获得馈线(3)网络的圆形取向,并且两个邻近的馈线(3)的组分别包括相同的角度。本发明还涉及用于对所述阵列天线执行各步骤的方法,涉及波束转换阵列天线,并涉及用于波束转换阵列天线的方法。
Description
技术领域
本发明涉及圆极化阵列天线和用于阵列天线的方法。
背景技术
最近,对天线的要求已显著增加。必须使现代天线更加完善,以便既能放大所需信号,又能将噪声和来自其它区域的信号降为零。特别在高速数据速率下,最好具有小旁瓣的辐射图,以减少多路径效应和降低功率消耗。
加拿大专利CA 206 3914公开了一种多波束天线和包括多波束或相控阵天线的波束成形网络、天线馈线和电子波束控制网络。喇叭形天线和多个介质谐振器加在一起形成辐射器。这种天线的缺点是太复杂,因为每个辐射器需要两条馈线。而且,由于其喇叭装置的原因,制造过程也极其不易。
在2003年欧洲微波会议(European Microwave Conference)上,Abdel-Rahman等人的文章”Aperture Coupled Microstrip AntennaWith Quasi-Planner Surface Mounted Horn”公开了一种孔径耦合微带天线和准planner表面安装短喇叭的组合,以提高接线天线(patchantenna)的增益。其缺点是它不能工作在圆极化,因为它只能用于线极化。它仅提供中等增益且其旁瓣抑制也相当低。
文件美国专利US 4090203公开了一种由基本子阵列组成的天线系统,所述基本子阵列包括分别排列成具有中心元件的圆或排列成方形的七个或九个辐射元件。把这些辐射元件设置成同相,但功率加到每个元件上,并且这样选择间距,使得由于干涉的缘故旁瓣基本上消失。这种天线的缺点在于其复杂性,因每个辐射元件需要一条馈线。而且,制造过程也不容易。
发明内容
因此,本发明的一个目的是提供一种用于圆极化的阵列天线,它易于制造,并且具有高增益和包括用于圆极化的低旁瓣的优异性能。
本发明的又一目的是在不引起高损耗或噪声的情况下改变阵列天线的聚束方向。
根据本发明,提出一种圆极化阵列天线,它包括:由至少一套补片构成的组,用于辐射和/或接收圆极化电磁波;馈线网络,每条馈线连接到并沿着纵向或垂直地延伸到所述各套补片中的一套,用于传送来自所述一套补片的信号能量或将信号能量传送到所述一套补片,从而使连接到各套补片构成的组的每组馈线指向不同于其它馈线组所指向的方向,以获得馈线网络的圆形取向,并且两个邻近的馈线组分别包括相同的角度。
另外,根据本发明,提出一种用于阵列天线的方法,所述方法包括以下步骤:通过由至少一套补片构成的组辐射和/或接收圆极化电磁波;提供馈线网络;每条馈线连接到并沿纵向或垂直地延伸到一套补片,用于传送来自所述一套补片的信号能量或将信号能量传送到所述一套补片;以这样的方式设置连接到由各套补片构成的组的每组馈线,使得每组馈线的指向不同于其它馈线组的指向,以获得馈线网络的圆形取向;以及分别以这样的方式设置两个邻近的馈线组,使得它们包括相同的角度。
此外,按照本发明的另一方面,提出一种阵列天线,它包括用于辐射和/或接收圆极化电磁波的补片和喇叭形天线,将每个喇叭形天线加到一个补片上以保持相同的圆极化并提高增益,从而将喇叭形天线布置成由至少一个喇叭形天线构成的各天线组,使每个喇叭形天线组具有不同于其它喇叭形天线组的聚束方向。
另外,按照本发明,提出一种用于波束转换阵列天线的方法,所述方法包括以下步骤:通过由至少一个补片构成的所述一套补片辐射和/或接收圆极化电磁波;以及提供喇叭形天线,将每个喇叭形天线加到所述各套补片中的一套补片上以保持相同的圆极化并提高增益,从而以这样的方式将喇叭形天线布置成由至少一个喇叭形天线构成的天线组,使得每个喇叭形天线组的聚束方向不同于其它喇叭形天线组的聚束方向。
通过提供用于辐射和/或接收圆极化电磁波的补片,结合圆形取向的馈线网络,可以获得圆极化的包括高增益和低噪声的高性能。
而且,通过提供具有不同聚束方向的喇叭形天线,可以覆盖半球的宽广区域而不会损失信号的辐射特性。
此外,通过为一套补片只提供一条馈线,有可能降低馈线网络的复杂性。
最好,一套补片包括至少一个补片。
最好,两个邻近馈线组指向之间的角度等于360度除以馈线组数。
而且,最好,两个邻近馈线组之间的相位等于360度除以馈线组数。
在优选实施例中,阵列天线由布置成正方形2×2阵列的至少四套(10)补片(2)组成。
而且,在优选实施例中,两条邻近馈线的指向之间的角度等于90度,以改进圆极化。
而且,最好,两条邻近馈线之间的相位等于90度。
最好,所述一套补片由三个补片组成。
还有,最好,馈线连接到所述三个补片的一套补片的中心补片上。
最好,提供连接元件,用于连接所述一套补片中的各补片,以便能在补片之间传送信号能量。
在第一实施例中,连接元件是微带元件。
在另一实施例中,连接元件由分立的电气元件构成。
最好在补片上方设置介质覆盖层。
更好的是,所述介质覆盖层是四分之一波长的覆盖层。
最好,将至少两套补片结合成一体。
最好,将喇叭形天线加到每套补片上以便提高增益。
更好的是,分别在两个喇叭天线之间设置缝隙以抑制表面波。
在优选实施例中,所述喇叭天线的至少一部分是空心的。
附图说明
现参阅附图仅以示例方式说明本发明的实施例,附图中:
图1示出按照本发明的阵列天线的一套补片,
图2是按照本发明的阵列天线的截面图,
图3是阵列天线的平面图,示出各套补片的不同取向,
图4示出按照本发明的阵列天线的第二实施例,
图5a示出具有不同聚束方向的喇叭形天线组的阵列天线,
图5b为图5a的截面图,
图6示出具有空心喇叭部分的阵列天线,
图7示出具有改进的圆极化的阵列天线,
图8是具有改进的圆极化的阵列天线的平面图,
图9a到9d是显示与补片组关联的馈线组的不同指向的方框图,
图10示出具有不同聚束方向的喇叭形天线组的阵列天线,
图11为图10的截面图,
图12为喇叭形天线的第一实施例,以及
图13为喇叭形天线的第二实施例。
具体实施方式
图1示出阵列天线,它包括:一套补片10,用于辐射和/或接收圆极化电磁波,根据补片的配置,所述圆极化电磁波可以是右旋或左旋圆极化;以及馈线3。所述一套补片10具有关联的馈线3,馈线3连接到所述一套补片10)中的一个补片2,并且能够传送信号能量到关联的补片2上,或传送来自关联的补片2的信号能量。馈电不仅可以通过沿纵向或垂直地延伸的馈线来实现。馈电也可以例如通过连接到多层衬底中的不同层的补片中间的小孔来实现。最重要的是,正确地建立补片处的相对相位角。最好,所述一套补片10包括三个补片2,而馈线3连接到中心补片2上。
所述一套补片10中的补片2与连接元件9相连接,以便能在补片之间传送信号能量,使得由馈线3传送到中心补片2的信号能量可进一步传送到所述一套补片10中的其它补片2。
此处的连接元件9可以是微带元件或是分立的电气元件,例如电阻R、线圈L或电容器C,或它们的组合。通过中心补片和外补片之间的连接元件9来控制外补片元件处的功率幅度与中心补片元件处的功率幅度之比。旁瓣电平与在阵列边缘处幅度分布终止的陡峭性密切相关。补片2之间的连接用来控制每个补片的幅度。补片元件两个边缘处的小幅度产生小的旁瓣辐射。当使幅度逐渐减小到补片边缘处的小数值时,可以消除小波瓣。按照本发明的具有三个补片2的所述一套补片10的任何阵列天线都提供非均匀的功率分布,而不是均匀的功率分布。在均匀分布时,所述一套补片10中三个补片2的功率幅度之比为1∶1∶1。而在此处,可以获得非均匀分布,例如二项式分布或Dolph-Tchebyscheff功率分布1∶A∶-1,其中A为中心补片的幅度,且1<A≤2。
通过为所述一套补片10仅提供一条馈线3,可以减小旁瓣电平,而不必引入复杂的馈线网络。不需要附加的衰减器或放大器。
图2示出按照本发明的阵列天线的截面图。在此,在衬底12上设置补片2(它可以是单个的补片2或一套补片10)。为了提高天线增益,在补片2上方设置介质覆盖层11。覆盖层11的材料具有比衬底12更高的介电常数。通过使用补片2上方的具有高介电常数的四分之一波长覆盖层11,电场就被吸引到垂射(broad side)方向,故增益提高。所述覆盖层11在补片2和空气之间提供良好的阻抗匹配,以得到最大的功率辐射。
可以将圆形喇叭或波导天线4加到补片2上以便改进圆极化性能和整个天线的增益。在设置覆盖层11的情况下,覆盖层的尺寸和其周围喇叭4的孔径相同。介质覆盖层的形状可以是平板形或透镜形,即凹形或凸形。
图3示出具有四套补片10的阵列。为了改进圆极化,可以以这样的方式布置各套补片10,使得各套补片10的纵轴或者顺时针或者逆时针旋转。
图4示出包括布置成2×2阵列的四套补片10的阵列天线,其中每套顺补片10的纵轴旋转90°。将由一件构成的喇叭形天线4加到阵列天线上以提高增益。此处每套10补片的喇叭形天线结合成喇叭形天线件。为了在组合天线时消除从一个元件到另一元件的不希望有的电磁影响,在所述各套补片10的两个喇叭4之间设置缝隙5,以避免交叉耦合或表面波,因为交叉耦合或表面波会影响天线性能。而且,可以在每套补片10上加上介质覆盖层11。
图5a示出有数套补片10以及关联的喇叭形天线4的阵列。一般来说,每个辐射/接收元件具有一个主要的聚束方向。为了确切地说明这种方向,现引入球坐标系。在此,z轴表示自天线平面垂直延伸的方向。而且,θ角和φ角表示球坐标系中的仰角和方位角。
标准的多阵列天线设计成具有零视角,这是作为z轴方向的主聚束方向。为了覆盖更宽的半球区域,通过利用相位移来改变聚束方向,将波束的视角改为不同的θ角和φ角。这就产生了以下问题,即,在波束控制的所有状态,对不希望有的信号的控制,例如旁瓣抑制,就变得非常困难。
因此,根据图5a,将具有不同聚束方向的喇叭结合到按照本发明的天线阵列中。在此,喇叭的中心轴根据喇叭4的位置而倾斜。图5b示出图5a中线B到B’的截面图。可以看出,在图5a和5b所示的实例中,在某一时刻,四套补片10的喇叭4具有相同的聚束方向13a、13b或13c。在此,中间的喇叭4具有沿球坐标系z轴的垂直聚束方向。喇叭4距中间的喇叭4越远,聚束方向越倾斜,就是说侧面喇叭4的轴14和中间喇叭4的轴14之间的角度增大。利用结合到阵列天线控制电路中的开关,可以根据所需的不需要的聚束方向,在具有不同聚束方向的喇叭4之间转换来自喇叭4或发送到喇叭4的信号能量。这样,可以获得宽的半球覆盖而不牺牲对不希望有的噪声或旁瓣信号的抑制。
应当指出,具有相同聚束方向的一组喇叭形天线4可以由一个或多个喇叭形天线4构成,所述一个或多个喇叭形天线4以二维或三维阵列的形式布置成行、矩形,圆形中的任一种形状或其它形状。
在此,区域是指由整个天线阵列所覆盖的波束扫描范围,所述区域等于具有相同聚束方向的单组喇叭(4)所覆盖的波束宽度乘以由不同喇叭(4)组所实现的聚束方向数。
图6示出按照本发明具有空心喇叭形天线4的阵列天线。在衬底12上设置补片2或一套补片10且喇叭4是空心的,以便电路零件,例如电气组件15可以设置在空心喇叭部分的下面以缩小电路尺寸。也可以利用喇叭部分作为电屏蔽罩。
为了改进阵列天线的圆极化,所述一套补片10中的各补片2可具有不同的取向,即,每个补片2相对于邻近补片2旋转例如90°。此外,可以利用改进圆极化的馈线网络,如下文中将要说明的。
图7示出包括补片2的阵列天线,用于辐射和/或接收圆极化的电磁波,根据补片和馈线3的配置,所述电磁波可以是右旋或左旋圆极化的。每个补片2具有纵向延伸到补片2的关联的馈线3。馈线3连接到补片2,并能够传送信号能量到补片2上,或传送来自补片2的信号能量。馈电不仅可以通过沿纵向或垂直地延伸的馈线来实现。馈电也可例如通过补片中间的连接到多层衬底中的不同层的小孔来实现。最重要的是,要正确地建立各补片处的相对相位角。
由图8可见,每条馈线3的指向,即取向,不同于其它馈线3的指向。这样就获得了馈线3的圆形取向馈线网络,它提供关于圆极化性能的附加的优点。此外,可以增强极化方向,例如,右旋圆极化补片和圆形取向馈线网络一起可以产生在右旋方向上大于左旋方向上的辐射。因此,不希望有的极化的主波束就很小且远离所需波束。
这种组件既可以用在单层阵列天线上也可以用在多层阵列天线上。
按照图7和8,可将圆形喇叭或波导天线加到各个补片2上以保持圆极化性能并改善整个天线的增益。此时,将圆柱形或圆锥形喇叭天线4设置在阵列天线的每个补片2上。将建议的多喇叭天线结合成一体,设计成本可以降低,且易于安装。
为了在组合天线时消除从一个元件到另一元件的不希望有的电磁影响,在两个喇叭4之间设置缝隙5,用以避免交叉耦合或表面波,因它们都会影响天线性能。
按照图7和8的阵列天线由四个补片2和馈线3构成,而两条邻近馈线3的指向包括90度角。且两条邻近馈线3的相位,也就是由两条邻近馈线3所馈入的信号之间的相位,也包括90度角。还可以使用更多数量的补片,其各自的馈线3具有不同的指向,而两条邻近馈线3的指向之间的角度或两条邻近馈线3之间的相位等于360度除以馈线3的数量。如果例如有8个补片2,则两条馈线3之间的角度和相位应设定为45度。
按照图9a到9d,也可以使用补片组6,此时,连接到补片组6的每组馈线3指向不同于其它组馈线3的指向。例如,在图9a中,每个补片组6由四个补片2构成,整个阵列天线包括四个补片组6,各组馈线3的指向之间的角度为90度。
也可以以这样的方式布置补片2或补片组6,以便最好地消除两种极化状态(即左旋和右旋)之间的相互影响。通过顺时针旋转各馈线组的指向,如图9a和9c所示,或逆时针旋转各馈线组的指向,如图9b和9d所示,可以做到这一点。
应当指出,本发明不限于将补片布置成二维阵列,本发明也可包括补片的三维阵列,此时要改变设置在彼此之上的馈线3的指向。
应当指出,词语”套”在本发明中是指仅具有一条馈线3的一个或多个补片2的组合。如果套10包括不止一个补片,则套10的补片用连接元件9连接。词语”组”在本发明中是指一套或多套10补片的组合。
例如,如果套10仅包括一个补片,且组6仅包括一套10,则此时组6就仅包括一个补片2。这就是说,组6可包括一个补片2或多个补片2,每个补片2有关联的馈线3,或组6可包括一套或多套10,每套有不止一个补片2,而每一套10有一套关联的馈线3。
所以,在根据图10的本发明中,将具有不同聚束方向的喇叭结合到天线阵列中。喇叭的中心轴根据喇叭4的位置而倾斜。图11示出图10中沿线A到A’的截面图。可以看出,在图4和5所示的实例中,在某一时间两个喇叭4具有相同的聚束方向7a、7b或7c。此处中间的两个喇叭4具有沿球坐标系z轴的垂直聚束方向。喇叭4距中间的两个喇叭4越远,聚束方向越倾斜,就是说,侧面喇叭4的轴8和中间喇叭4的轴8之间的角度增大。利用结合到阵列天线控制电路中的开关,可以根据所需的聚束方向,在具有不同聚束方向的喇叭4之间转换来自喇叭4或发送到喇叭4的信号能量。这样,可以获得宽的半球覆盖而不牺牲对不希望有的噪声或旁瓣信号的抑制。
应当指出,具有相同聚束方向的一组喇叭形天线4可包括一个或多个喇叭形天线4,它们以二维或三维阵列的形式布置成行、矩形、圆形中的任一种形状或其它形状。
在此,区域是指由整个天线阵列所覆盖的波束扫描范围,所述区域等于具有相同聚束方向的单组喇叭(4)所覆盖的波束宽度乘以由不同喇叭(4)组所实现的聚束方向数。
图12和13示出不同形状的喇叭4,它们可以改善天线的电性能。喇叭形天线4主要用作波导,并能够在线路的开端辐射和/或接收来自或传送到波导的信号能量。如图13所示的具有矩形或圆形截面的开放式波导可以用作简单的天线。而且,也可以使用一端扩宽的波导以改善辐射特性,以及使用平滑边缘的波导以改善旁瓣性能,如图12所示。
应当指出,本发明不限于附图所示的喇叭形状,而应包括具有喇叭功能的各种波导。
由于本发明的阵列天线构造简单,且高度不高,故制造容易,成本低廉,可以使用在小型的消费类产品中,例如移动装置或消费产品。
在圆极化毫米波天线的情况下,可以实现小旁瓣电平(最好可小于15分贝),高增益,狭窄的半功率波束宽度(例如小于20度),最好地消除右旋和左旋极化之间的相互影响,而且制造简易。
Claims (42)
1.一种圆极化阵列天线,它包括
由至少一套补片(10)构成的组(6),用于辐射和/或接收圆极化电磁波,所述一套补片(10)由补片(2)组成,
馈线(3)的网络,每条馈线(3)连接到并沿纵向或垂直地延伸到所述一套补片(10),用于传送来自所述一套补片(10)的信号能量或将信号能量传送到所述一套补片(10),
从而,连接到由各套补片(10)组成的组(6)的每组馈线(3)的指向不同于其它馈线(3)的组所指向的方向,以便获得馈线(3)的网络的圆形取向,以及
馈线(3)的两个邻近的组分别包括相同的角度。
2.如权利要求1所述的阵列天线,其特征在于:所述一套补片(10)包括至少一个补片(2)。
3.如权利要求1或2所述的阵列天线,其特征在于:馈线(3)的两个邻近组的指向之间的所述角度等于360度除以所述馈线组数。
4.如权利要求1、2或3所述的阵列天线,其特征在于:馈线(3)的两个邻近组之间的相位等于360度除以所述馈线组数。
5.如权利要求1到4中任何一个所述的阵列天线,其特征在于:所述阵列天线由布置成方形2×2阵列的至少四套补片(10)组成。
6.如权利要求5所述的阵列天线,其特征在于:两条相邻的馈线(3)的指向之间的所述角度等于90度。
7.如权利要求5或6所述的阵列天线,其特征在于:两条相邻的馈线(3)之间的所述相位等于90度。
8.如权利要求1到7中任何一个所述的阵列天线,其特征在于:所述一套补片10包括三个补片(2)。
9.如权利要求8所述的阵列天线,其特征在于:所述馈线(3)连接到所述有三个补片(2)的所述一套补片(10)的中心补片(2)上。
10.如权利要求1到9中任一项所述的阵列天线,其特征在于:设置连接元件(9),用于连接所述一套补片10中的各补片(2),以便能在所述补片(2)之间传送信号能量。
11.如权利要求10所述的阵列天线,其特征在于:所述连接元件(9)是微带元件。
12.如权利要求10所述的阵列天线,其特征在于:所述连接元件(9)包括分立电气元件。
13.如权利要求1到12中任一项所述的阵列天线,其特征在于:在所述补片(2)的上方设置介质覆盖层(11)。
14.如权利要求13所述的阵列天线,其特征在于:所述介质覆盖层(11)是四分之一波长覆盖层。
15.如权利要求1到14中任一项所述的阵列天线,其特征在于:将至少两套(10)补片(2)结合成一体。
16.如权利要求1到15中任一项所述的阵列天线,其特征在于:将喇叭形天线(4)加到每套补片(10)上,以改善增益。
17.如权利要求16所述的阵列天线,其特征在于:在两个喇叭(4)之间分别设置缝隙(5),用于抑制表面波。
18.如权利要求16或17所述的阵列天线,其特征在于:所述喇叭(4)的至少一部分是空心的。
19.如权利要求1到18中任一项所述的阵列天线,其特征在于:所述一套补片(10)中的每个补片(2)具有不同于所述一套补片(10)中其它补片(2)的取向。
20.一种包括上述权利要求中任一项所述的圆极化阵列天线的移动终端。
21.一种用于阵列天线的方法,它包括以下步骤:
通过由至少一套补片(10)构成的组(6)辐射和/或接收圆极化电磁波,所述一套补片(10)由补片(2)构成,
提供馈线(3)的网络,每条馈线(3)连接到并沿纵向或垂直地延伸到所述一套补片(10),用于传送来自所述一套补片(10)的信号能量或将信号能量传送到所述一套补片(10),
以这样的方式布置连接到由各套补片构成的组(6)的每组馈线(3),使得每组馈线(3)的指向不同于其它馈线(3)的组的指向,以获得所述馈线(3)的网络的圆形取向,以及
以这样的方式分别布置馈线(3)的两个邻近的组,使得它们包括相同的角度。
22.如权利要求21所述的方法,其特征在于:为所述一套补片(10)提供至少一个补片(2)。
23.如权利要求21或22所述的方法,其特征在于:把馈线(3)的两个邻近的组的指向之间的角度设置成等于360度除以所述馈线(3)的组数。
24.如权利要求21、22或2 3所述的方法,其特征在于:把馈线(3)的两个邻近的组的指向之间的相位设置成等于360度除以所述馈线(3)的组数。
25.如权利要求21到24中任一项所述的方法,其特征在于:提供布置成方形2×2阵列的至少四套补片(10)。
26.如权利要求25所述的方法,其特征在于:把两条相邻的馈线(3)的指向之间的角度设置成90度。
27.如权利要求25或26所述的方法,其特征在于:把两条相邻的馈线(3)之间的相位设置成90度。
28.如权利要求21到27中任一项所述的方法,其特征在于:为每套补片(10)提供三个补片(2)。
29.如权利要求28所述的方法,其特征在于:将所述馈线(3)连接到具有三个补片(2)的所述一套补片(10)的中心补片(2)上。
30.如权利要求21到29中任一项所述的方法,其特征在于:设置连接元件(9),用于连接所述一套补片10中的各补片(2),以便能在所述补片(2)之间传送信号能量。
31.如权利要求30所述的方法,其特征在于:提供微带元件作为所述连接元件(9)。
32.如权利要求30所述的方法,其特征在于:提供分立电气元件作为所述连接元件(9。
33.如权利要求21到32中任一项所述的方法,其特征在于:在所述补片(2)的上方设置介质覆盖层(11)。
34.如权利要求33所述的方法,其特征在于:提供四分之一波长覆盖层作为所述介质覆盖层(11)。
35.如权利要求21到34中任一项所述的方法,其特征在于:将至少两套(10)补片结合成一体。
36.如权利要求21到35中任一项所述的方法,其特征在于:将喇叭形天线(4)加到每套补片(10)上以改善增益。
37.如权利要求36所述的方法,其特征在于:分别在两个喇叭(4)之间设置缝隙(5),用以抑制表面波。
38.如权利要求36或37所述的方法,其特征在于:把所述喇叭(4)的至少一部分设置为空心喇叭(4)。
39.一种波束转换阵列天线,它包括:
由至少一个补片(2)组成的一套补片(10),用于辐射和/或接收圆极化电磁波,以及
喇叭形天线(4),将每个喇叭形天线(4)加到所述一套补片(10)上,以保持所述相同的圆极化并提高增益,
其中,将所述喇叭形天线(4)布置成由至少一个喇叭形天线(4)组成的各组,并且每组喇叭形天线(4)的聚束方向不同于其它喇叭形天线(4)组的聚束方向。
40.如权利要求39所述的阵列天线,其特征在于:所述中心喇叭(4)的轴(8)是垂直的,而所述其它喇叭(4)的轴(8)是倾斜的,其中,所述喇叭(4)偏离所述中心喇叭(4)越远,各喇叭(4)的所述轴(8)越倾斜。
41.一种用于波束转换阵列天线的方法,它包括以下步骤:
通过由至少一个补片(2)组成的一套补片(10)辐射和/或接收圆极化电磁波,以及
提供喇叭形天线(4),将每个喇叭形天线(4)加到所述一套补片(10)上,以保持所述相同的圆极化并提高增益,
从而,以这样的方式布置由至少一个喇叭形天线(4)组成的各组中的所述喇叭形天线(4),使得每组喇叭形天线(4)的聚束方向不同于其它喇叭形天线(4)的组的聚束方向。
42.如权利要求41所述的方法,其特征在于:设置所述中心喇叭(4)的垂直轴(8)并使所述其它喇叭(4)的所述轴(8)倾斜,其中,所述喇叭(4)偏离所述中心喇叭(4)越远,所述喇叭(4)的所述轴(8)倾斜的角度越大。
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CN104335421B (zh) * | 2012-05-29 | 2018-03-06 | 三星电子株式会社 | 圆极化贴片天线、天线阵列以及包括这种天线和阵列的设备 |
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CN107528130B (zh) * | 2016-06-16 | 2022-01-18 | 索尼公司 | 十字形天线阵列及其操作方法和天线装置 |
CN108987921A (zh) * | 2018-06-25 | 2018-12-11 | 西安电子科技大学 | 提高三极子天线交叉极化鉴别度的天线阵列 |
CN108987921B (zh) * | 2018-06-25 | 2019-08-30 | 西安电子科技大学 | 提高三极子天线交叉极化鉴别度的天线阵列 |
CN112038756A (zh) * | 2020-08-27 | 2020-12-04 | 成都天锐星通科技有限公司 | 一种抑制圆极化阵列天线栅瓣的组阵方法 |
CN112038756B (zh) * | 2020-08-27 | 2022-08-30 | 成都天锐星通科技有限公司 | 一种抑制圆极化阵列天线栅瓣的组阵方法 |
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EP2015396A2 (en) | 2009-01-14 |
JP2005303986A (ja) | 2005-10-27 |
US20050200531A1 (en) | 2005-09-15 |
TW200532988A (en) | 2005-10-01 |
EP2015396A3 (en) | 2009-07-29 |
KR20060041826A (ko) | 2006-05-12 |
CN100499266C (zh) | 2009-06-10 |
EP1622221A1 (en) | 2006-02-01 |
US7212163B2 (en) | 2007-05-01 |
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