公开(公告)号：US06919859B2

公开(公告)日：2005-07-19

申请号：US10658732

申请日：2003-09-09

Applicant: Robert Daniel McCarthy ,  Russell Alan Fix

Inventor： Robert Daniel McCarthy ,  Russell Alan Fix

IPC: H01Q1/36 ,  H01Q1/38 ,  H01Q1/50 ,  H01Q11/08

CPC classification number: H01Q1/38 ,  H01Q11/08

Abstract: An antenna including a feed network; four or more helical radiating elements, and four or more impedance matching stubs each coupling a respective radiating element to ground in parallel with the feed network. The shunt stubs provide a reactance in parallel with the radiating elements to rotate the desired frequency locus about a constant admittance curve. Specifically, the shunt stubs rotate the desired frequency locus from a low resistance, capacitive impedance to 50 ohms purely resistive. The length of the stubs can be adjusted to control the inductance.

Abstract translation: 包括馈电网络的天线; 四个或更多个螺旋辐射元件，以及四个或更多个阻抗匹配短截线，其每个将相应的辐射元件与馈电网络并联耦合到地面。 分流短截线与辐射元件平行地提供电抗，以围绕恒定的导纳曲线旋转所需的频率轨迹。 具体来说，分流短截线将期望的频率轨迹从低电阻，电容阻抗旋转到50欧姆纯电阻。 可以调节短截线的长度以控制电感。

公开(公告)号：US06788272B2

公开(公告)日：2004-09-07

申请号：US10252634

申请日：2002-09-23

Applicant: Robert Daniel McCarthy ,  Russell Alan Fix

Inventor： Robert Daniel McCarthy ,  Russell Alan Fix

IPC: H04Q136

CPC classification number: H01Q11/08

Abstract: An antenna feed network including a 180° hybrid coupler having a feed port, a 0° port; and a 180° port having an approximately 180° phase difference with the 0° port. A first antenna port is coupled to the 0° port; and a second antenna port is coupled to the 0° port via a respective phased line, the second antenna port having an approximately 90° phase difference with the first antenna port. A third antenna port is coupled to the 180° port; and a fourth antenna port is coupled to the 180° port via a respective phased line, the fourth antenna port having an approximately 90° phase difference with the third antenna port. The feed network can be used to drive antenna elements in phase quadrature. In a preferred embodiment the feed network drives a quadriflar helix antenna.

Abstract translation: 一种天线馈电网络，包括具有馈送端口，0°端口的180°混合耦合器; 以及与0°端口具有大约180°相位差的180°端口。 第一个天线端口耦合到0°端口; 并且第二天线端口通过相应的相位线耦合到0°端口，第二天线端口与第一天线端口具有大约90°的相位差。 第三个天线端口耦合到180°端口; 并且第四天线端口经由相应的相位线耦合到180°端口，第四天线端口与第三天线端口具有大约90°的相位差。 馈电网络可用于驱动相位正交的天线元件。 在优选实施例中，馈电网络驱动四极螺旋天线。