Title :
A low RCS microstrip patch antenna array using hybrid ground plane
Author :
Sudhendra, Chandrika ; Madhu, A.R. ; Pillai, Acr ; Amrutha, M.K. ; Rukmini, T.S. ; Rao, Kark
Author_Institution :
Aeronaut. Dev. Establ., Defence Res. Dev. Organ., Bangalore, India
Abstract :
A (2×2) microstrip patch antenna array (MSPAA) is designed at 10 GHz., for low radar cross section (RCS) outside the operating band of the antenna in the frequency band from 16 GHz. to 26 GHz. The conventional ground plane of the MSPAA is modified by using a hybrid ground plane comprising Jerusalem cross slot (JCS) frequency selective surface (FSS) elements in a square grid. The optimized gain of the antenna array is 13.38 dB with bandwidth of 6%. Superstrate effects are studied and the design is re-optimized for preserving the radiation properties of the antenna. Antenna radiation pattern measurements are carried out in microwave anechoic chamber to verify the design.
Keywords :
antenna radiation patterns; frequency selective surfaces; microstrip antenna arrays; radar cross-sections; FSS elements; JCS elements; Jerusalem cross slot; MSPAA; RCS microstrip patch antenna array; antenna array; antenna radiation pattern measurements; frequency 10 GHz; frequency 16 GHz to 26 GHz; frequency selective surface elements; gain 13.38 dB; hybrid ground plane; microwave anechoic chamber measurements; radar cross section; square grid; Antenna arrays; Antenna measurements; Arrays; Frequency selective surfaces; Gain; Microstrip antennas; EBG; FSS; RCS; RCSR;
Conference_Titel :
Computational Systems and Communications (ICCSC), 2014 First International Conference on
Conference_Location :
Trivandrum
Print_ISBN :
978-1-4799-6012-5
DOI :
10.1109/COMPSC.2014.7032628
