Substrate integrated waveguide antenna feed - design methodology and validation

The substrate integrated waveguide (SIW) concept is proposed as a viable antenna feed operating at Ku-band. The efficiency obtained from integrating the feed technology with the antenna is comparable to the metallic waveguide feed, at, a much reduced cost and increased miniaturization capability. Results arc presented for a prototyped 2x4 subarray module, which exhibits a 16 dB gain.