Accession Number : ADD010596
Title : A Frequency Independent Twisted Wave Front Constant Beamwidth Lens Antenna.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Sternberg,Robert L ; Anderson,Warren A
Report Date : 13 Jun 1983
Pagination or Media Count : 14
Abstract : A frequency independent constant beamwidth lens antenna concept is described. The device may be configured in various ways such as with a cylindrical lens with a retina. The essential feature is that a twisted planar or hyperbolic paraboloidal phase or wave front is formed by the antenna which then in turn produces a frequency independent constant beamwidth beam in the far field of the antenna. Moreover, the frequency independent constant beamwidth beam may be steered or scanned in azimuth without moving the lens.
Descriptors : *Patent applications, *Lens antennas, Wavefronts, Twist(Motion), Antenna radiation patterns, Beam forming, Frequency, Diffraction, Width, Antenna arrays, Filters, Plates, Transmitting, Underwater acoustics, Hyperbolas, Parabolic antennas
Subject Categories : Electrical and Electronic Equipment
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE