Performance of a Parabolic Antenna with an Offset Feed.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1971
- Accession Number
- AD0737619
Entities
People
- Kenneth W. Morin
- Leonard S. Wagner
Organizations
- United States Naval Research Laboratory