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A compact, dual-frequency (Ku/Ka-band), dual-polarization, wide-angle scanning antenna system has been developed as part of an airborne instrument for measuring rainfall. This system is an upgrade version of a prior single frequency airborne rain radar instrument, and was designed to generate spatially coincident horizontally and vertically polarized beams at both frequencies with 3-dB beamwidths that match within 25 percent, and have low-sidelobe levels over a wide scan angle at each polarization-and-frequency combination. The calculated results, as well as the measured electrical performance over wide-angle scanning, are presented.
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International (Volume:7 )
Date of Conference: 21-25 July 2003