Antenna measurement techniques for Meteosat II MWS antenna at 183 GHz

Various methods of determining the beam efficiency of large space borne reflector antennas used for remote sensing of the atmosphere are reviewed and new developments described at the 110-190 GHz range. Measurements of radiation pattern on a far-field or on a compact range are studied. Also alternative methods are studied: beam efficiency measurement with hot and cold loads on a compact range and calculation of the beam efficiency of the reflector antenna using measured feed phase and amplitude patterns and accurate surface information of the reflector.<
>