Patent ID: 7046196

Claim:
A dual-band microstrip antenna comprising: a ground member; and first and second portions of a patch structure that is in a generally parallel spaced relationship with the ground member, first and second resonant frequency ranges being defined by electromagnetic interaction between the patch structure and the ground member; wherein sides and one end of the patch structure are in respective alignment with sides and one end of the ground member, wherein the first portion of the patch structure is a first patch and the second portion of the patch structure is a pair of second patches, each second patch having a side adjacent a respective opposite side of the first patch, one end of each first and second patch corresponding to the one end of the patch structure, wherein an antenna signal feedline is connected to a generally central position on the first patch, wherein the first patch is not directly connected to the ground member, and wherein a shorting member extends from each second patch to the ground member at a point proximate the one end of the second patch and the ground member.