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Abstract
This article furnishes the design and analysis of three concentric circular array antennas (CCAAs) of point sources and a linear microstrip patch array antenna (LMPAA) employing a newly developed hybrid optimization algorithm, the modified ant lion optimization (MALO). The optimum CCAAs employing MALO offer better radiation patterns in terms of the reduction in peak side lobe level, null depths, first null beam width, and directivity considering the same apertures, compared to some other popular optimization algorithms available in the literature. In the other hand, the LMPAA with optimized rectangular ring shaped slots in its ground plane using MALO enhances its bandwidth (BW), gain, and directivity. A prototype of the proposed LMPAA is fabricated, which offers measured values of BW, gain, directivity, and radiation efficiency of 907.1 MHz, 10.26 dBi, 12.19 dB, and 84.16%, respectively. The LMPAA is compared with some previously available designs in the literature to highlight its significance and hence to validate the process of employing optimization algorithms in design and analysis of real antennas.
DISCLOSURE STATEMENT
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Hrudananda Pradhan
Hrudananda Pradhan received the BE degree in electronics and telecommunication engineering from the Veer Surendra Sai University of Technology (VSSUT), Burla, India, in 2006. He received his MTech degree in communication system engineering from National Institute of Technology Rourkela, Odisha, India, in 2009. He is currently working as an assistant professor and also pursuing his PhD degree in the Department of Electronics and Telecommunication Engineering at VSSUT, Burla. He is a member of Indian Society for Technical Education. His main research interests are design and optimization of linear and planar antennas, and reconfigurable antennas. Email: [email protected]
Rasmita Sahu
Rasmita Sahu received the BE degree in electronics and telecommunication engineering from the Sanjay Memorial Institute of Technology, Berhampur, an affiliated institute of Biju Patnaik University of Technology, Odisha, India, in 2005. She received the MTech degree in communication system engineering from VSSUT, Burla, India, in 2010. She is currently working as an assistant professor and also pursuing her PhD degree in the Department of Electronics and Telecommunication Engineering at VSSUT, Burla. Her main research interests include design of dielectric resonator antennas, and reconfigurable antennas. Email: [email protected]
Biswa Binayak Mangaraj
Biswa Binayak Mangaraj received the BE degree in electronics and telecommunication engineering from Sambalpur University, Burla, Odisha, India, in 1994 and the ME and PhD degree in microwave engineering from Jadavpur University, Kolkata, India, in 2003 and 2012, respectively. He is currently working as an associate professor in VSSUT, Burla, India. He is a member of Indian Society for Technical Education and Institution of Electronics and Telecommunication Engineers. He has published 30 international journal papers and several international conference papers. His current research interests include computational electromagnetics, analysis, design and coding of different antennas structures, and optimization of antenna parameters using optimization algorithms.
Santanu Kumar Behera
Santanu Kumar Behera (SM’15) received the BSc (Engg) degree from the VSSUT, Burla, India, in 1990, and the ME and PhD (Engg) degrees from Jadavpur University, Kolkata, India, in 2001 and 2008, respectively. He is currently a professor and head with the Department of Electronics and Communication Engineering, National Institute of Technology Rourkela, Odisha, India. His current research interests include planar antennas, dielectric resonator antennas, reconfigurable planar antennas, bio-electromagnetics, and radio frequency identification tags & reader antennas. Email: [email protected]