MEASUREMENT OF THE COMPLEX DIELECTRIC CONSTANT OF A PLEXIGLAS RADOME AT 5.5-MM WAVELENGTH,

Abstract : The report describes the measurements and computations used to determine the complex dielectric constant of a Plexiglas radome in the region of 5.5 mm. The transmission losses were measured as a function of the angle of incidence of the antenna beam at ten frequencies in the range from 53.4 to 56.4 GHz. The measurement data were compared to the theoretical transmissivity to determine the dielectric constant of 2.07 - j 0.012. (Author)