Design and Development of Compact Conformal Microstrip Antenna at S-Band

Srinivasa Rao Varanasi; DR Jahagirdar; Girish Kumar

doi:10.14429/dsj.68.11944

Srinivasa Rao Varanasi DRDO Research Centre Imarat, Hyderabad 500 069
DR Jahagirdar DRDO Research Centre Imarat, Hyderabad 500 069
Girish Kumar Indian Institute of Technology, Bombay Powai, Mumbai 400 076

DOI: https://doi.org/10.14429/dsj.68.11944

Keywords: Metallic ring, Shorting wall loaded microstrip antenna, Compact antenna, Radome, Conformal antenna

Abstract

A compact microstrip antenna at S-Band is described in this work. This paper presents the theoretical and experimental investigations on conformal 90° Sectoral circular microstrip antenna using shorting wall. The performance of antenna characteristics is obtained using FEM based HFSS software and the computed results are verified by measurement. Here, microstrip antenna is loaded with shorting wall to achieve frequency reduction of about 75 per cent. The antenna characteristics were studied with radome surrounded by metallic ring. The radiation characteristics of antenna mounted on vehicle body is carried out. The antenna has moderate gain and wider coverage in roll plane as well as azimuth plane and may be used as small, compact antenna for onboard telemetry applications.

Author Biographies

Srinivasa Rao Varanasi, DRDO Research Centre Imarat, Hyderabad 500 069

Mr V. Srinivasa Rao completed BE in (Electronics and Communication Engineering) in 1999, from GITAM, Vishakhapatnam affiliated to Andhra University. MTech (MSS) in 2001, from Indian Institute of Technology, Kharagpur. Currently working as a scientist at Research Centre Imarat, DRDO, Hyderabad.

DR Jahagirdar, DRDO Research Centre Imarat, Hyderabad 500 069

Dr D.R. Jahagirdar received his BE in (Electronics Engineering) in 1990, from Govt. College of Engineering, Amravati University, Maharashtra, India. MTech in (Microwave Engineering) in 1992, from Indian Institute of Technology, Kharagpur, India. He obtained PhD in 1997 from the Department of Electronics and Computer Science, University of Southampton, UK. Currently working as Scientist at DRDO-RCI, Hyderabad in 2000. He received ‘Young Scientist Award’ at Intl Radar Symposium Bangalore in 2005. In 2007 He received ‘Laboratory scientist of the year award. In 2010 he received ‘DRDO Scientist of the year’ from Prime Minister of India. He has 52 paper published in various international conferences and journals.

Girish Kumar, Indian Institute of Technology, Bombay Powai, Mumbai 400 076

Dr Girish Kumar received PhD in (Electrical Engineering) from IIT Kanpur in 1983. Currently a Professor in the Electrical Engineering Department, IITB, Mumbai. His areas of interest are: Antennas, Microwave Circuits and Systems. He has written more than 300 paper in the international and national journals and conference proceedings. He is author of four books and has filed 7 patent. He has been working on hazards of microwave radiation for the last one decade. Has written several reports and given presentations at various forums on the topic related to cell phone and tower radiation hazards and solutions.