Microwave time delays for the X/S-band feed system at X-band

摘要

The X-band time delays for the X/S feed system of the 34-meter high efficiency antenna are required to refine current X-band downlink (8450 plus or minus 50 MHz) calibrations and prepare for the Magellan uplink (7190 plus or minus 45 MHz). The time delays of elements in the X-band feed system are obtained mostly via computer calculation and partly via measurement. The methods used and results obtained are presented. There is good agreement with theory.