Characterization of Various Quasi-optical Components for the Submillimeter Limb-sounder SMILES

Abstract The submillimeter-wave limb-emission sounder called SMILES is currently being developed for the Japanese Experiment Module of the International Space Station. It will observe the spectral emission lines of several stratospheric trace gases related to ozone chemistry. We present transmission and reflection measurements with a submillimeter-wave vector-network analyzer of various optical sub-components of SMILES, which include corrugated feed horns and corrugated back-to-back horns, a novel single sideband filter and a conical calibration load.