Title :
RCS reduction technique for reflectarray antennas
Author :
Misran, N. ; Cahill, R. ; Fusco, V.F.
Abstract :
The performance of a concentric ring reflectarray element backed either by a solid metal ground plane or a frequency-selective surface is compared. Simulated and measured results show that the ´in-band´ reflection phase response of the two structures is similar; however, the periodic surface reduces the ´out-of-band´ reflectivity of the antenna by more than 4 dB, thereby decreasing its RCS profile to these signals
Keywords :
frequency selective surfaces <reflectarray antennas, RCS reduction tech.>; microstrip antenna arrays <reflectarray antennas, RCS reduction tech.>; radar antennas <reflectarray antennas, RCS reduction tech.>; radar cross-sections <reflectarray antennas, RCS reduction tech.>; reflector antennas <reflectarray antennas, RCS reduction tech.>; RCS reduction technique; concentric ring element; dual resonant surface; frequency-selective surface; high boresight radar cross-section; in-band reflection phase response; microstrip antenna; out-of-band reflectivity; periodic surface; plane wave transmission coefficients; reflectarray antennas; solid metal ground plane;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031070
