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ABSTRACT
This paper proposes an algorithm called cat swarm optimization (CSO) for the optimal design of non-uniform single-ring circular antenna array (CAA) and non-uniform three-ring concentric circular antenna array (CCAA). The algorithm is used to determine an optimum set of current excitation weights and antenna inter-element separations for CAA of 8, 10 and 12 elements and optimal current excitation weights for CCAA, respectively, which provide radiation pattern with maximum reduction of side lobe level (SLL). Two 3-ring CCAAs, one having the set of 4-, 6-, 8-, elements and the other having 8-, 10-, 12- elements, with and without centre element are considered. Simulation results show a considerable improvement of SLL and some restricted improvement of 3-dB beamwidth with respect to the corresponding uniform cases of both the types of antenna array and the corresponding results of some recent literature reported in this paper.
Additional information
Notes on contributors
Gopi Ram
Gopi Ram received his BE degree in electronics and telecommunication engineering, from Government Engineering College, Jagdalpur, Chhattisgarh, India in the year 2007. He received the MTech degree from National Institute of Technology, Durgapur, West Bengal, India in the year 2011. Presently, he is with National Institute of Technology, Durgapur, West Bengal, India, as Institute PhD Research Scholar in the Department of Electronics and Communication Engineering. His research interest includes array antenna design, via evolutionary computing techniques.
E-mail: [email protected]
Durbadal Mandal
Durbadal Mandal received his BE degree in electronics and communication engineering, from Regional Engineering College, Durgapur, West Bengal, India in the year 1996. He received the MTech and PhD degrees from National Institute of Technology, Durgapur, West Bengal, India in the year 2008 and 2011 respectively. Presently, he is attached with National Institute of Technology, Durgapur, West Bengal, India, as Assistant Professor in the Department of Electronics and Communication Engineering. His research interest includes array antenna design; filter optimization via evolutionary computing techniques. He has published more than 200 research papers in international journals and conferences.
E-mail: [email protected]
Rajib Kar
Rajib Kar received his BE degree in electronics and communication engineering, from Regional Engineering College, Durgapur, West Bengal, India in the year 2001. He received the MTech and PhD degrees from National Institute of Technology, Durgapur, West Bengal, India in the year 2008 and 2011 respectively. Presently, he is attached with National Institute of Technology, Durgapur, West Bengal, India, as Assistant Professor in the Department of Electronics and Communication Engineering. His research interest includes VLSI signal processing, filter optimization via evolutionary computing techniques. He has published more than 230 research papers in international journals and conferences.
E-mail: [email protected]
Sakti Prasad Ghoshal
Sakti Prasad Ghoshal received his BSc and BTech degrees in 1973 and 1977, respectively, from Calcutta University, West Bengal, India. He received MTech degree from IIT (Kharagpur) in 1979. He received PhD degree from Jadavpur University, Kolkata, West Bengal, India in 1992. Presently he is acting as Professor of Electrical Engineering Department of NIT Durgapur, West Bengal, India. His research interest areas are application of evolutionary computing techniques to electrical power ystems, digital signal processing, array antenna optimization and VLSI. He has published more than 250 research papers in international journals and conferences.
E-mail: [email protected]