Patent ID: 6313798
Filing Date: 2001-11-06
Classification: H01Q

Abstract:
A microstrip antenna, comprising:a generally planar ground plane element having a top metal surface;an elongated and generally planar microstrip element having first and second generally parallel side edges that are spaced by a generally uniform width;a bottom metal surface on said microstrip element;said bottom metal surface of said microstrip element being spaced a given distance from said top metal surface of said ground plane element and being generally parallel to said top metal surface of said ground plane element;a dielectric layer intermediate said bottom metal surface of said microstrip element and said top metal surface of said ground plane element;said bottom metal surface of said microstrip element defining a microstrip transmission line in combination with a dimensionally corresponding portion of said dielectric layer, and a dimensionally corresponding portion of said top metal surface of said ground plane element,a first and a second metal wall respectively extending upward from said first and second side edges of said bottom metal surface of said microstrip element;said first and second metal walls each having a top edge;a first and a second metal radiating element respectively extending from said top edge of said first metal wall and from said top edge of said second metal wall;said first and second metal radiating elements being spaced from said top metal surface of said ground plane element by a distance that is greater than said given distance;a first metal conductor connected to said metal ground plane element;and a second metal conductor connected to said bottom metal surface of said microstrip element.