NASA NTRS · 19870001594
A prototype DSN X/S-band feed: Model 3 development
Abstract
The development of a prototype X/S-band common aperture Cassegrain feedhorn for Deep Space Network (DSN) use is discussed. A Model 3 combiner has been developed to increase S-band bandwidth to include the Highly Elliptical Earth Orbiter band from 2025 to 2110 MHz, and to provide a 400-kW CW S-band uplink and a possible planetary radar band near 2320 MHz. The combiner uses eight S-band waveguide injection slots arranged in four pairs. The problems of this design geometry associated with rejection filtering and X/S-band matching are discussed.
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Bathker, D. A., Reilly, H. F.. 1986-08-15. A prototype DSN X/S-band feed: Model 3 development. https://ntrs.nasa.gov/citations/19870001594
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