Frequency Selective Surface Subreflector Development Rept

摘要

The need, in microwave tracking and radar systems for antennas with a dual-frequency capability, has necessitated the development of multi-frequency, multipurpose antennas. It is the purpose of the report to describe one type of dual-frequency antenna that has been made operational. In particular, this antenna is the M.I.T. - Millstone Hill antenna. (Author)