The Electrical Characteristics of the Conical Horn-Reflector Antenna

1187 1188 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1963 and radiation patterns for two modes of excitation, constructing model antennas and measuring them. We present in this paper results of these studies together with results of the measurements of the full-size antenna at Andover, Maine. 2.1 General The geometry of the horn reflector is shown in Fig. 1. The antenna consists of a paraboloidal reflecting section illuminated by a conical horn. The apex of the horn coincides with the focus of the paraboloid, Fig. 1 -- Geometry of the conical horn-reflector a n t e n n a .