Design and implementation of a novel rasorber for aircraft stealth applications

Author

Sudhendra, Chandrika ; Madhu, A.R. ; Pillai, Acr ; Shekar, Gayathri ; Rukmini, T.S. ; Rao, Kark

Author_Institution

Aeronaut. Dev. Establ., Defence Res. Dev. Organ., Bangalore, India

fYear

2014

fDate

17-18 Dec. 2014

Firstpage

176

Lastpage

180

Abstract

A novel rasorber based on frequency selective surfaces (FSS) for dual functions operating as stealthy FSS radome for an antenna operating at 3.7 GHz with RF transparency bandwidth of 400 MHz and also as a thin capacitive circuit radar absorber in X band with Radar Cross Section Reduction (RCSR) of 10 dB (minimum) is described. The conducting backplane of rasorber is modified by using a metallic Jerusalem cross slot FSS, which is designed to function as conducting ground plane in the radar absorber frequency range and also to function as radome with band pass spatial filtering properties in the antenna radiating band.

Keywords

airborne radar; antenna radiation patterns; band-pass filters; electromagnetic wave absorption; frequency selective surfaces; microwave antennas; radar antennas; radar cross-sections; radomes; spatial filters; thin film circuits; RCSR; RF transparency; X band; antenna radiating band; band pass spatial filtering; conducting ground plane; frequency 3.7 GHz; frequency selective surfaces; metallic Jerusalem cross slot FSS; radar cross section reduction; rasorber; stealthy FSS radome; thin capacitive circuit radar absorber; Absorption; Bandwidth; Frequency selective surfaces; Radar antennas; Radar cross-sections; Radio frequency; FSS radome; RAS; RCS; RCSR; Rasorber;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Systems and Communications (ICCSC), 2014 First International Conference on

Conference_Location

Trivandrum

Print_ISBN

978-1-4799-6012-5

Type

conf

DOI

10.1109/COMPSC.2014.7032643

Filename

7032643