Gaussian beam mode analysis of standing waves between two coupled corrugated horns
Trappe, Neil and Murphy , J. Anthony and Withington, Stafford and Jellema, Willem (2005) Gaussian beam mode analysis of standing waves between two coupled corrugated horns. IEEE Transactions on Antennas and Propagation, 53 . ISSN 0018-926X
Abstract—In this paper we present the theoretical analysis of the effects of standing waves between coupled horn antennas that can occur in terahertz quasi-optical systems. In particular we illustrate the approach for the case of two coupled horn antennas as the distance between them is varied. The full mode matching scattering matrix approach is based on combining a standard waveguide mode description of the horn antenna and a quasi-optical Gaussian beam description of the free space propagation. Track is kept of both the backward and forward going components of the propagating fields.We compare theoretical predictions with actual experimental test results for a quasi-optical system operating at a frequency of 0.480 THz.
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