Patent ID: 7221321
Filing Date: 2007-05-22
Classification: H01Q

Abstract:
1. A dual frequency, dual polarization antenna including: a first planar and substantially rectangular dielectric substrate having first and second opposing sides; a first planar and substantially rectangular electrical conductor attached to said first side of said dielectric substrate, forming a ground plane; a second planar and substantially rectangular electrical conductor attached to said second side of said dielectric substrate thereby forming a radiator; wherein said first and second substantially rectangular conductors have one, and the same single corner cut off such that diagonal dimensions of the first and second conductors measured between opposing corners of said first and second conductors, are of different lengths, the different lengths of the diagonals of the first and second conductors providing the antenna with two different resonant frequencies, the different diagonal lengths corresponding to said two different resonant frequencies, and wherein the radiator has four non-conductive slots formed therein, the non-conductive slots lowering the resonant frequencies.