A dual-band high-gain microstrip antenna with a defective frequency selective surface for wireless applications

Abstract

A dual-band high-gain linearly polarized antenna for wideband operation using a defective frequency selective surface (DFSS) is proposed and demonstrated experimentally. The designed antenna consists of radiating patch, truncated ground with a half-inverted L-shaped rectangular ring and frequency selective surface (FSS) with a defective ground plane. The dimensions are optimized to achieve dual band with a 10-dB impedance bandwidth of 7.72% from 2.37 to 2.56 GHz and 46.75% from 4.60 to 7.41 GHz. The antenna gain is enhanced by 8.8 dBi at lower band and 4.5 dBi at upper wideband. The maximum gain achieved using this technique is 8.8 dBi at 2.4 GHz. The measured and simulated results of the proposed antenna are well-matched in terms of gain, reflection coefficient (S11) and radiation patterns. The Proposed antenna is easy to implement, low cost, low profile and can be used in wireless services like Wi-Fi, Wi-MAX and C band applications.

KEYWORDS:

• High gain
• defective frequency selective surface (DFSS)
• dual band
• defective ground structure (DGS)

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Arun Kumar

Arun Kumar received the B.Tech. degree in electronics and communication engineering from Gautam Buddh Technical University, Uttar Pradesh, India and the M.Tech. degree in electronics and communication engineering from the Amity University, Noida, India, in 2010 and 2013, respectively. He is currently pursuing the Ph.D. degree in microwave engineering with the IIT (ISM), Dhanbad, India. His current research interest includes gain enhancement of microstrip antennas.

Santanu Dwari

Santanu Dwari received the B.Tech. and M.Tech. degrees in radio physics and electronics from the University of Calcutta, West Bengal, India, in 2000 and 2002, respectively, and the Ph.D. degree from the IIT Kharagpur, Kharagpur, India, in 2009. He is currently working in the Department of Electronics Engineering, IIT (ISM), Dhanbad, India, as an Associate Professor. He has published more than 100 research articles in refereed international journals/conferences. His current research interest includes computational electromagnetics, antennas, and RF planar circuits. He is carrying out two sponsored research projects as a Principal Investigator.

Ganga Prasad Pandey

Ganga Prasad Pandey received B.Tech. in Electronics Engineering from K. N. I. T. Sultanpur, India in 2000. He completed M.E. in Computer Technology and Application from Delhi College of Engineering Delhi, India in 2004 and Ph.D. degree from Uttarakhand Technical University, Dehradun, India in 2015 Presently, he is an Assistant Professor in Information and Communication Technology department of Pandit Deendayal Petroleum University, Gandhinagar, India. His research interests include active, Reconfigurable, frequency agile microstrip antennas and microwave/millimeter wave integrated circuits and devices.