Filtering secondary mirror for a dual-band Cassegrain reflector antenna

Details Filtering secondary mirror for a dual-band Cassegrain reflector antenna Filtering secondary mirror for a dual-band Cassegrain reflector antenna

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ell....12..366l&link_type=abstract

Electronics Letters, vol. 12, July 22, 1976, p. 366, 367. Research supported by the Science Research Council.

Physics

Antenna Feeds, Antenna Radiation Patterns, Cassegrain Antennas, Microwave Antennas, Mirrors, Coplanarity, Microwave Filters, Polarization Characteristics, Signal Processing, Subreflectors, Waveguide Antennas

Scientific paper

A dual-frequency Cassegrain reflector antenna has been investigated in
which the secondary mirror is constructed from a stack of waveguides.
The secondary mirror behaves as a highpass filter, giving access to the
prime-focus feed position at the higher-frequency band. The copolar and
crosspolar radiation patterns are discussed.

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