Accession Number : AD0780047
Title : ARSR-2 Radar Dual Feedhorn Antenna Modification.
Descriptive Note : Final rept. Jun 69-Aug 72,
Corporate Author : RAYTHEON CO WAYLAND MASS EQUIPMENT DIV
Personal Author(s) : Rawlinson,P. E.
Report Date : DEC 1973
Pagination or Media Count : 122
Abstract : The intent of these efforts was to determine the feasibility of a dual feedhorn configuration employed with the ARSR-2 antenna reflector. The feedhorn geometry was modified by adding a separate receive only feedhorn and polarizer to produce separate antenna two-way coverage patterns for the close-in and long-range capabilities of the radar system. The close-in coverage was obtained by transmission on the normal (low) beam and reception on the second (high or tilted-up) beam. The long range coverage was obtained by both transmission and reception on the normal beam. The effort was divided into three parts: (1) analysis of the problems associated with placing a second feedhorn in the focal region of the reflector and with generating good circular polarization characteristics for both beam patterns; (2) design and fabrication of the necessary antenna feed network hardware; and (3) performance of experimental measurements. (Modified author abstract)
Descriptors : *Radar antennas, Horn antennas, Antenna feeds, Modification, Search radar, Radar clutter, Air traffic control systems, Antenna radiation patterns
Subject Categories : Electrical and Electronic Equipment
Air Navigation and Guidance
Active & Passive Radar Detection & Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE