Accession Number : AD0737619

Title :   Performance of a Parabolic Antenna with an Offset Feed.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Wagner,Leonard S. ; Morin,Kenneth W.

Report Date : DEC 1971

Pagination or Media Count : 52

Abstract : Performance of a parabolic cylinder excited by an offset line-source has been investigated by digital computer techniques. Performance parameters monitored include gain, beamwidth and main-lobe-to-coma lobe ratio. Axial focusing has been incorporated in the calculation for purposes of maximizing antenna gain. Antenna patterns for cases of a uniformly illuminated aperture and for an aperture with a 10 dB cosine taper are presented for values of f/D ranging between 1.0 and 2.0 and for lateral feed displacements up to one fourth of the focal length. (Author)

Descriptors :   (*PARABOLIC ANTENNAS, ANTENNA RADIATION PATTERNS), NUMERICAL ANALYSIS, PERFORMANCE(ENGINEERING)

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE