Patent ID: 6661380
Filing Date: 2003-12-09
Classification: H01Q

Abstract:
A multi-band planar antenna, comprising:a flat dielectric substrate having a first surface, a second surface that is generally parallel to said first surface, a first edge, and a second edge which is located generally opposite said first edge; a metal radiating element on said first surface of said substrate; said radiating element having a generally right triangle shape including a linear base located generally adjacent to said first edge of said substrate, a first linear side extending from one end of said base, and a second linear side extending from the other end of said linear base, said radiating element having a triangle apex which is formed by the intersection of said first and second linear sides; a linear metal feed line including and formed as an extension of said triangle apex, said feed line extending in a direction away from said triangle base and extending from said triangle apex toward said second edge of said substrate; a metal ground plane element on said second surface of said substrate, said ground plane element having a first edge located generally adjacent to said second edge of said substrate; said ground plane element having a second edge that dimensionally overlaps said feed line and only said apex of said radiating element; said ground plane element being electrically connected to said radiating element; said radiating element having a slot formed therein which extends inwardly into said first side of said radiating element.