Patent ID: 6249261
Filing Date: 2001-06-19
Classification: G01S,H01Q

Abstract:
A direction-finding antenna with electronics for receiving radio signals in a frequency range of about 30 megaHertz to about 1 gigahertz, said direction-finding antenna comprising:at least two collinear dipole verticals, said dipole verticals being constructive at least in part from electrically-conductive polymer composite, said polymer composite having low reflectivity to radar frequency signals, but high conductivity to said frequency range of said radio signals and wherein said dipole verticals are designed for determining the angle of incidence of the propagation direction of a plane electromagnetic wave of said radio signal relative to a reference direction, andconnectors and cables for connecting said collinear dipole verticals to said electronics to receive said radio signals for delivery to a processor to process said radio signals to determine the propagation direction of said radio signal for locating the source of said radio signal.