{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/76182"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/76182","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"An RF system for millimeter wave propagation experiments","abstract":"This thesis describes a method for designing an RF system for measuring rain-induced attenuation and depolarization at millimeter wavelengths. Path length, dynamic range, and polarization isolation are discussed with respect to their importance to RF system performance. Design considerations for the VPI&SU 17.65GHz,CW, RF system are presented. The path length is 1.43km, the receiver dynamic range is 71dB, and the orthogonal polarization isolation is greater than 60dB for the receiver and transmitter. 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Path length, dynamic range, and polarization isolation are discussed with respect to their importance to RF system performance. Design considerations for the VPI&SU 17.65GHz,CW, RF system are presented. The path length is 1.43km, the receiver dynamic range is 71dB, and the orthogonal polarization isolation is greater than 60dB for the receiver and transmitter. 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