公开(公告)号：US20120229339A1

公开(公告)日：2012-09-13

申请号：US13045014

申请日：2011-03-10

Applicant: J. AIDEN HIGGINS

Inventor： J. AIDEN HIGGINS

IPC: G01S3/04

CPC classification number: G01S3/40 ,  G01S3/04 ,  G01S3/16 ,  H01Q1/38 ,  H01Q3/22 ,  H01Q3/44 ,  H01Q15/0086

Abstract: Method embodiments are disclosed to determine arrival directions of electromagnetic signals that have a known signal frequency and a known guided signal wavelength. These methods are realized with an antenna configured to define, at the signal frequency, at least one metamaterial cell between first and second signal ports. They then include the step of rotating the antenna until the differential power from the first and second signal ports is substantially zero and then determining the arrival direction as a normal to the metamaterial cell. In other method embodiments, the antenna is stationary and a differential power is determined wherein the differential power is defined as the difference between received powers from the first and second ports. The arrival direction of electromagnetic signals are then determined from the differential power.

Abstract translation: 公开了确定具有已知信号频率和已知的导向信号波长的电磁信号的到达方向的方法实施例。 这些方法通过配置成在信号频率处限定第一和第二信号端口之间的至少一个超材料单元的天线来实现。 然后，它们包括旋转天线的步骤，直到来自第一和第二信号端口的差分功率基本为零，然后确定到达方向为超材料单元的法线。 在其他方法实施例中，天线是静止的，并且确定差分功率，其中差分功率被定义为来自第一和第二端口的接收功率之间的差。 然后根据差分功率确定电磁信号的到达方向。