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ABSTRACT
Printed rectangular monopole antennas (PRMAs) have been investigated for increasing bandwidth. PRMAs with single, dual and triple microstrip line feed have been studied to show the effect of feed network to enhance the impedance bandwidth. Systematic study has been carried out to show the effects of patch width variation along with its offset feed, which leads to wideband antenna characteristics. The increase in bandwidth in the case of off-centred feed PRMAs is from 1.7 GHz (1.4–3.1GHz) to 3.9 GHz (1.3–5.2 GHz); this is more than 2.2 times as compared to single-centre-feed PRMA. Experiments have been carried out to verify the simulation results, which are in good agreement.
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Notes on contributors
K. P. Ray
K. P. Ray completed his MTech in 1985, joined SAMEER (TIFR) in the same year and has been working in the areas of RF and microwave systems/components. He developed expertise in the design of antenna elements and arrays and high-power RF/microwave sources for RADAR and industrial applications for, which he has successfully executed over 25 projects sponsored for government agencies/industries in the capacity of a designer, a chief investigator and a project manager. He received his Ph D from the Department of Electrical Engineering, IIT, Bombay. He has been a guest/visiting faculty in IIT, Bombay and CEERI (CSIR), Pilani for postgraduate courses and a visiting/adjunct faculty for postgraduate courses in University of Mumbai and is also a Member of Board of Studies for Electronics. He is a recognized guide for PhD in University of Mumbai and BATU, Lonere. He has co-authored a book for Artech House, USA and published over 250 research papers in international/national journals and conference proceedings. He has been in advisory capacity for many international/national conferences, chaired many sessions and delivered numerous invited talks. He has also been on the Editorial Board of International Journal on RF and Microwave Computer-Aided Engineering, John Wiley, and a reviewer of IEEE, MTT, IET (Formerly IEE, UK), International Journal of Antennas and Propagation (USA), PIERS (USA), International Journal of electronics (USA), Springer publication, Elsevier Publication, IETE (India) and many international/national conferences. He is a senior member of IEEE (USA), a fellow IETE, and lifetime member of Instrument society of India and Engineers of EMI/EMC society of India. He has two international patents and has filed five national patents.
S. S. Thakur
S. S. Thakur obtained a BE in E&TC from Government Engineering College, Jabalpur, M.P., India and master degree in 1994 from VJTI, Mumbai, India and is currently a student of doctoral programme at SAMEER, IIT, Bombay, India. Recipient of Rashtriya Gaurav Award (2012) and Indira Gandhi Excellence Award (2013), New Delhi, India. At present, he is working as faculty in E&TC Department of PVPP COE, Sion, Mumbai.
S. S. Kakatkar
S. S. Kakatkar obtained his MTech degree in Microwave Engineering from Indian Institute of Technology, Kharagpur in 1991. He joined SAMEER, Mumbai, India in the same year and has been working on the design of different types of antennas for radar and other applications, microwave circuits and EMI/EMC. His interests include electromagnetic theory and antenna analysis and design.