Title :
Antenna measures of merit for ultra-wide synthetic aperture radar
Author :
Ayers, Elizabeth Li ; Ralston, James M. ; Maloney, R. Paul ; Tomlinson, Philip G. ; McCorkle, John
Author_Institution :
Inst. for Defense Analyses, Alexandria, VA, USA
Abstract :
This paper addresses the issue of how to characterize an antenna´s performance in a SAR system-particularly in ultra-wide-bandwidth and/or ultra-wide angle (UWB/A) SAR-based on simple gain-magnitude versus frequency and angle measurements provided in data sheets. We present eight measures of merit. As illustrative examples, we compare an ideal mathematical model to measurements of an actual antenna designed to perform UWB/A SAR over up to 65-degree integration angles and over a 150- to 550-MHz frequency band
Keywords :
airborne radar; angular measurement; antenna arrays; antenna radiation patterns; antenna testing; frequency measurement; gain measurement; radar antennas; synthetic aperture radar; 150 to 550 MHz; SAR system; UHF; UWB/A SAR; VHF; angle measurement; antenna array; antenna measures of merit; antenna performance; antenna radiation patterns; frequency band; frequency measurement; gain-magnitude measurement; integration angles; mathematical model; ultra-wide angle; ultra-wide synthetic aperture radar; ultra-wide-bandwidth; Antenna measurements; Aperture antennas; Bandwidth; Frequency measurement; Image quality; Magneto electrical resistivity imaging technique; Narrowband; Radar antennas; Synthetic aperture radar; Ultra wideband antennas;
Conference_Titel :
Radar Conference, 1998. RADARCON 98. Proceedings of the 1998 IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-4492-8
DOI :
10.1109/NRC.1998.678023
