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

fYear

1998

Firstpage

331

Lastpage

336

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 1998. RADARCON 98. Proceedings of the 1998 IEEE

Conference_Location

Dallas, TX

Print_ISBN

0-7803-4492-8

Type

conf

DOI

10.1109/NRC.1998.678023

Filename

678023