Accession Number : ADP001109

Title :   Electronically Steerable Spherical Array Provides Multiple Beam Coverage of a Hemisphere,

Corporate Author : BALL AEROSPACE SYSTEMS DIV BOULDER CO

Personal Author(s) : Taylor,Taliaferro Holmes , Jr

Report Date : JAN 1983

Pagination or Media Count : 11

Abstract : This paper describes the Electronically Steerable Spherical Array (ESSA) antenna and its configuration for multiple beam operation over a hemispherical coverage region. This paper discusses the ESSA's theory of operation along with its RF components. The ESSA is unusual in that by switching between beams (which are made of sets of elements located on a spherical surface) the ESSA is able to provide constant gain and phase independent of the scan angle.

Descriptors :   *Antenna arrays, *Spheres, *Hemispheres, *Electronic scanners, Beam steering, Multiple beams(Radiation), Multiple operation, Constants, Symposia, Operation, Radiofrequency, Regions, Parts, Theory, Area coverage, Gain

Distribution Statement : APPROVED FOR PUBLIC RELEASE