Advanced quasi-optical demultiplexer design and measurements at millimeter waves

This paper concentrates on progress in antenna and quasi-optics design tools together with measurement facilities aiming at controlling performance over the complete industrial cycle. The dedicated technologies were originally developed for the AMSU-B instrument and the following Microwave Humidity Sounder Phase B activities for EUMETSAT meteorological aims, and intensified within breadboarding activities under ESTEC for limb sounding