Patent ID: 6507323
Filing Date: 2003-01-14
Classification: H01P,H01Q

Abstract:
A circular waveguide antenna feed comprising:a circular waveguide section having a diameter for supporting electromagnetic waves of desired frequency range from a source there of; a circular waveguide termination wall having a diameter of said circular waveguide section and affixed concentrically for providing a low impedance (short) for detected signal components of said desired frequency range electromagnetic waves; a step-shaped septum dividing the circular waveguide section into first and second waveguide sections each of which is capable of supporting propagation of the desired frequency range electromagnetic waves; and a pair of electric field probes disposed in diametrically opposite arrangement affixed to and protruding into said first and second waveguide sections for output of linear orthogonal detected signal components of general elliptical polarized electromagnetic waves of the desired frequency range; wherein said pair of electric field probes protrusion is orthogonal to and equal distance from said step-shaped septum.