Wide-angle scanning cavity antenna element for mobile satcom applications at Ka band

Abstract

A novel dual linearly polarized cavity antenna with excellent scan performance up to 60◦ in both E- and H-plane is presented. The highly integrated antenna element for Ka band Satcom on the move applications is operating in the uplink band at 30 GHz. Vertical stubs incorporated into the 3-D architecture are proposed to compensate parasitic effects limiting the scan volume of planar phased array antennas. To verify this approach, the vertical transition used in the design, and the entire antenna structure in single element configuration were fabricated and measured successfully.