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Abstract
In this article, a parallel metal-plated split U-shaped omnidirectional ultra wideband (UWB) antenna fed by a novel 1 × 3 microstrip line is proposed. Printed monopole antennas fabricated on a substrate offer impedance bandwidth which can cover UWB. However, radiation pattern varies significantly over the bandwidth. The cross polar component increases with frequency and the pattern degrades from the desired omnidirectional characteristics. Omnidirectional radiation bandwidth can be increased significantly by decreasing the substrate thickness and using substrate material of low dielectric constant. With the use of the proposed feeding arrangement, parallel metal-plated split U-shaped monopole antenna shows omnidirectional radiation pattern. The proposed metal-plated structure using foam as dielectric is designed, fabricated, and tested. The measured VSWR is <2 over 3.1 to 10.6 GHz frequency band. The antenna offers high efficiency, stable gain, small group delay variation, and its radiation patterns indicate its suitability for UWB applications.
Additional information
Notes on contributors
Sanjeev Kumar Mishra
Sanjeev Kumar Mishra received his M.Tech degree in Electronics and Telecommunication Engineering from Biju Pattanaik University of Technology, Odisha and PhD in Electrical Engineering from IIT Bombay in 2012. He has two years research and one year teaching and research experience. He has contributed 52 technical papers in various journals and conferences. His research interests include Design and Analysis of Planar Antennas for UWB Applications, Integrated Bluetooth and UWB Antenna, UWB Array, High-gain Multilayer Antenna; Dielectric Measurements using Microwave Techniques, RF and Microwave Measurements. E-mail: [email protected]
Rajiv Kumar Gupta
Rajiv Kumar Gupta received his .B.Sc (Engg.) from NIT Kurukshtra, M.S. (Research) From IIT Delhi and Ph.D degree from IIT Bombay. He served Indian Railways and Department of Telecommunication for more than 5 years. He also worked as Sr. RF Design Engineer in Mind Tree Consulting Pvt. Ltd, Bangalore for more than 2 years. He is currently working as Professor in Electronics and Telecommunication Department at Terna Engineering Colege, Mumbai, India. His research interests are Antenna Design: Patch Antenna, UWB Antennas, High gain multilayer antenna. E-mail: [email protected]
Avinash R. Vaidya
Avinash R. Vaidya is born in Maharashtra, India on 24th September, 1984. He has completed his B.E. (Electronics) from Pune University, Maharashtra and M.Tech. (Electronics) from SGGSIE&T, Nanded, Maharashtra, India in year 2007 and 2009 respectively. He joined Department of Electrical Engineering, Indian Institute of Technology, Bombay as a research scholar in year 2010. As a research scholar at Indian Institute of Technology, Bombay, he has contributed in publication of 6 journal papers and 5 conference papers. His current areas of research are Low-Cost UWB Antenna Design and High-Gain Wide Band Antenna Design. E-mail: [email protected]
Jayanta Mukherjee
Jayanta Mukherjee received his PhD and Master of Science from The Ohio State University, Columbus Ohio in 2003 and 2006. Before this he was a Gold Medalist in his Bachelors at Birla Institute of Technology, Mesra. He was a Texas Instruments Fellow during 2001–2004. His research interests include RF Integrated Circuit design, Antennas and Filters. He is currently an Associate Professor in the Department of Electrical Engineering at IIT Bombay. E-mail: [email protected]