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CHAP PAGE I Introduction
Solid Dielectric Lenses
8 other sections not shown
amplitude distribution angle of incidence approximation artificial dielectrics bandwidth beam width Brewster angle calculated centre chapter characteristic impedance Clausius-Mossotti relation co-ordinates conductors cylindrical lens degrees dielectric lenses direction disc effect electric vector equal field strength fish-eye focal number free space free-space wavelength geometrical optics incident wave increased inner surface interface lens axis lens surfaces lens thickness less than unity loss matching metal-plate dielectric metal-plate lens method molecule non-homogeneous lenses normal obtained optical path length parallel path length difference pencil beam phase distribution phase error phase fronts phase velocity plane outer surface plane wave plate spacing polarisation possible power gain primary feed properties quadratic radiated beam radiation pattern ratio ray-paths reflected waves reflector reflexion coefficient refractive index rodded dielectric shape shown in Fig side-lobe level Snell's law solid dielectric spherical lens stepped lens taper term tion tolerance transmission coefficient transmission line unstepped wave impedance waveguides