Accession Number:

AD0625170

Title:

THE AFCRL 29-FT MILLIMETER-WAVE ANTENNA.

Descriptive Note:

Special rept.

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

• KEANE,L. M.

Report Date:

1965-10-01

Pagination or Media Count:

31.0

Abstract:

A general description of AFCRLs new 29-ft parabolic antenna is given. This antenna, designed for operation at 35 Gc, has Cassegrain feed optics and a precise reflecting surfdce supported on an elevation over azimuth mount. Design parameters include a gain of 67.5 dB at 35 Gc and a pointing capability of better than 1 arc min under 30-knot wind loads, normal solar loading, and peak accelerations of .012 degsq sec. The servo system was designed primarily to track objects traveling at sidereal rates. A limited satellite tracking capability should exist, however. Emphasis is given to engineering aspects of the tower, mount, drive system, and reflector assembly which should provide efficient rf operation and extreme precision in pointing. Author

Descriptors:

• *MILLIMETER WAVES
• ANTENNAS
• REFLECTORS
• GAIN
• ANTENNA COMPONENTS
• SERVOMECHANISMS
• TRACKING
• EXTREMELY HIGH FREQUENCY

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE