Patent ID: 6639558
Filing Date: 2003-10-28
Classification: H01Q

Abstract:
A stacked patch antenna assembly comprising:a first group of patch antennas comprising a plurality of patch antennas arranged in a stack, each said antenna having a respective operating frequency band, and each antenna comprising a radiating conductive patch; a first cable comprising a plurality of separate, coaxial conductors; wherein a first conductor of said first cable is conductively coupled to said radiating conductive patch of an uppermost one of said antennas and passes through apertures at null points of a plurality of other ones of said antennas, said other ones of said antennas in said stack coupled to another one of said plurality of conductors of said cable, said first conductor carrying a feed signal for said uppermost antenna; and wherein each of said plurality of patch antennas other than said uppermost antenna is fed by a different cable.