Measurements of antenna radiation patterns with a computer controlled 108-220 GHz transmitter/receiver system

Measurements of antenna radiation patterns in the D- and G-bands have been performed with a novel mm-wave transmitter/receiver system. With this system, measurements can be made at any frequency in the 108-220-GHz band. The cost of the system is considerably lower than that of systems which use separate mm-wave sources for each frequency. Measured radiation patterns of a broadband corrugated horn antenna at 140 GHz (co/crosspolar) and 170 GHz (copolar) are shown.<
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