Characterization techniques for passive devices from 150 GHz to 3 THz using THz-transient spectroscopy

Summary form only given.In recent years, new micromachining techniques have been developed for the easy and cheap fabrication of three-dimensional waveguide and antenna components in the GHz- and THz frequency range. We are developing characterization techniques for such devices, of which we present two examples: antenna-coupled waveguides and horn antenna patterns.