NEAR FIELD PATTERNS OF OFF FOCUS PARABOLOIDAL REFLECTOR AND OFFSET PARABOLOID
|Ajay Babu M 1, Dr. Habibulla Khan 2, N. V. Seshagirirao 3
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Radiation fields of the offset paraboloidal reflector illuminated by a prime focus feed and tilted feed employing the physical optics method. A set of curves generated by the optimum orientation of the axis of the feed for maximum antenna efficiency as a function of the offset angle β and the half angle α subtended by the reflector at its focus. A comparison on efficiency and side lobe levels is presented for different exiting angles of the feed.