The Boeing Company
HIGH-GAIN ANTENNA WITH CAVITY BETWEEN FEED LINE AND GROUND PLANE

Abstract:

An antenna device includes a conductive patch antenna element and a conductive feed line. The conductive feed line and the conductive patch antenna element are separated by one or more first dielectric layers. The antenna device also includes a ground plane. The ground plane is separated from the conductive feed line by a spacer structure that defines one or more walls of a cavity between the conductive feed line and the ground plane. The spacer structure includes one or more second dielectric layers