OPEN RESONATOR MILLIMETER WAVE MEASUREMENTS OF COMPLEX DiELECTRiC PERMITTIVITY

摘要

INTRODUCTIONAs we approaeh 3-mm wavelenth, the classical microwave fundamenlal mode resonant closed cavity is impractical for the inserlion of a specimen or even too small to be fabricated. The open resonator has become a precise method because it can be made fairly small, and the high Q values