Title :
A low Radar Cross Section dipole antenna array simulation
Author :
G.G. Machado;R. Cahill;M.T. de Melo
Author_Institution :
School of Electronics, Electrical Engineering and Computer Science, Queen´s University Belfast, Northern Ireland
Abstract :
This paper reports a new method for reducing the Radar Cross-Section (RCS) of a metal backed dipole antenna. Numerical simulations are used to show that when the Perfect Electrical Conductor (PEC) is replaced by a carefully designed Frequency Selective Surface (FSS), the electromagnetic performance of the antenna is similar in band, but the RCS of the structure is significantly lower out of band. The design of the FSS and the return loss, radiation patterns and RCS are presented for an antenna which operates at a center frequency of 4 GHz and the results are compared with a conventional metal backed arrangement.
Keywords :
"Frequency selective surfaces","Metals","Dipole antennas","Antenna radiation patterns","Radar antennas","Radar cross-sections","Bandwidth"
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2015 SBMO/IEEE MTT-S International
DOI :
10.1109/IMOC.2015.7369189
