Patent ID: 6720933
Filing Date: 2004-04-13
Classification: H01P,H01Q

Abstract:
An antenna feed comprising:a feed horn; an outer conductor in electrical communication with and contiguous to said feed horn; a hollow inner conductor disposed coaxially within said outer conductor; a polyrod having at least a portion thereof disposed within said hollow inner conductor and projecting into a throat of said metal feed horn, said polyrod having a shape to provide proper beamwidth and match at a first frequency band; and a printed circuit board (PCB) including a pair of receive channel RF probes, 180-degree hybrid combiner and low noise block (LNB) circuitry for reception of a second frequency band, said second frequency band being of lower frequency than said first frequency band, said PCB mounted generally perpendicular to the axis of said hollow inner conductor, said inner conductor passing through a central aperture in said PCB, said pair of receive channel RF probes located substantially in the plane of the PCB and disposed along a diameter of said outer conductor.