Abstract
The paper presents an approach to the synthesis of a transceiving feed for axisymmetric double reflector antennas based on the aperture separation of C- and Ka-band signals of coaxial and circular waveguides with a maximum separation of the extreme bands of 10 : 1. The development and selection of a coaxial feed design for constructing a feed system of the transceiving reflector antenna was carried out. Optimal parameters of the coaxial feed were determined and experimentally proved to provide a feed angle level of the subreflector of 30◦ and a VSWR of 1.25 for the C- and Ka-band outputs in the receiving channels and 1.15 and 1.3 for the C- and Ka-band transmission channels, respectively, with the bandwidth of Сreception — 21 %, Сtransmission — 18.2 %, Каreception — 8.6 %, Каtransmission — 7.8 %. The results of practical implementation are presented.
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