High gain leaky wave antenna operating at 0.566 THz

Metallic structures consisting of a central λ₀/2 slot surrounded by straight parallel wedge corrugations present high transmission enhancement for an impinging EM beam, compared to that given by a single central slot with no grooves. Here, a 0.566 THz low profile leaky-wave antenna (LWA) with triangular corrugations is numerically and experimentally analyzed. Negligible differences are observed between triangular and typical square corrugation profiles. A manufactured prototype is also numerically and experimentally studied. LWAs are of high interest in several frequency ranges, including the expanding range of the THz.