A Low-Sidelobe Antenna-Radome Study at Ka-Band.
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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The technical report summarizes the results of estensive measurements designed to evaluate the effects of a homogeneous, spherical, glass Pyrex radome on the sidelope structure of an isolated, low-sidelobe antenna. The antenna-radome combination is intended for use on a submarine for satellite communication. The results are divided into three basic categories first, the performance of an optimum low-sidelobe antenna is discussed second, the measured and calculated performance of various candidate antennas without radome will be presented finally, the effects of the spherical radome on the radiation patterns of the isolated antennas will be considered. Both lens and paraboloidal dish antennas are considered. The results of the measurements show that with the lens-radome combination low sidelobes can be achieved, whereas the dish-radome design presents considerable difficulties in achieving a low-sidelope pattern. Author
- Electrical and Electronic Equipment