Accession Number:

AD0608363

Title:

WIDE-ANGLE PROPERTIES OF DUAL-REFLECTOR ANTENNAS-EXPERIMENTAL.

Descriptive Note:

Final rept.,

Corporate Author:

TRG INC EAST BOSTON MASS

Personal Author(s):

Report Date:

1964-09-01

Pagination or Media Count:

38.0

Abstract:

Two dual-reflector Cassegrain microwave systems were studied experimentally and theoretically for wide-angle performance at 9000 mc. The parabolic reflector diameter was 72 inches and the hyperbolic subdish diameter 14.4 inches in Case 1 dD 0.2 and 21.6 inches in Case 2 dD 0.3. In Case 1, a scan of 4 beamwidths off-axis was achieved with 3db drop in gain, in Case 2, 5 beamwidths. Sidelobe level on-axis for Case 1 was about 18db, for Case 2 about 14db. Scanning performance was in good agreement with theory. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE