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ABSTRACT
In this paper, a dual-band reconfigurable substrate-integrated waveguide (SIW) cavity-backed slot antenna 1 × 8 linear array is presented with dual states. The proposed SIW antenna array combines the features of the conventional metalized cavity-backed patch arrays such as surface wave suppression, high efficiency with low-manufacturing cost. The basic element has been designed, fabricated and the performance has been verified in the outdoor antenna test range. Here, PIN diodes have been used as a switching device to achieve the reconfigurability with dual-band operation. A corporate feed network has been designed and integrated with the antenna to make it as a linear array.
ACKNOWLEDGEMENTS
The authors wish to gratefully acknowledge Centre for Excellence in Microwave Engineering (CEME) of Osmania University, Hyderabad, India; Centre for Applied Research in Electronics (CARE), Indian Institute of Technology Delhi, New Delhi, India; and Astra Microwave Products Limited, Hyderabad, India for providing the facilities. The authors wish to express the gratitude to Mr P.A. Chitrakar (COO) and Mrs C. Prameelamma (Technical Director) of Astra Microwave Products Limited, Hyderabad, India for their support.
Additional information
Notes on contributors
D. Rama Krishna
D. Rama Krishna obtained his Bachelor of Technology (BTech) in Electronics and Communications Engineering from Sri Krishna Devaraya University, Ananthapur, Andhra Pradesh, India and obtained his Master of Engineering (ME) in Electronics and Communication Engineering with specialisation in Microwave and Radar Engineering at University College of Engineering, Osmania University, Hyderabad, Andhra Pradesh, India. He obtained a PhD from Osmania University, Hyderabad, Andhra Pradesh, India in the Electronics and Communication Engineering subject. He is currently working as an Assistant Professor at Department of ECE, Osmania University, Telangana, India. His research areas of interest include Multifunction Antennas & Antenna Systems and Microwave & millimeter Wave Integrated Circuits.He is a life member of IE, IETE, ISSS, ISTE and member IEEE.
E-mail: [email protected]
V.M. Pandharipande
V.M. Pandharipande obtained his BE Degree from Visvesvaraya National Institute of Technology, India in 1970 and his MTech and PhD (Electronics & Communication Engineering) from Indian Institute of Technology Kharagpur, India in 1972 and 1979 respectively. He worked as a Scientific Officer in Tata Institute of fundamental Research, Mumbai (1972–74), faculty in Radar and Communication Centre, IIT Kharagpur (1974–83). He joined Department of Electronics & Communication Engineering of Osmania University, Hyderabad as a Professor in 1983 and served as Head of the Department, Chairman Board of Studies, Dean Faculty of Engineering, Coordinator of two World Bank Projects, Director Curriculum Development and Accreditation Audit Cell. He established the Centre of Excellence in Microwave Engineering with collaboration from Industry-Astra Microwave Products Limited and served as the Director of the Centre. He retired as Professor Emeritus in January 2011 and served as Vice-Chancellor of Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India from January 2011 to March 2014.
Dr. Pandharipande has completed many sponsored projects in the area of phased Array Antennas, Electronically Scanned Radar System, Printed Antennas for Satellite and Airborne Applications, Digital Beam forming in phased Arrays, Strip, Micro strip passive components. He has nearly 160 research papers published in National and International Journals and Conference Proceedings. He has received a Best Teacher Award, a Life Time Achievement Award, the Sir Visvesvaraya Award, the IETE Award, ISTE National Award and Dewang Mehta Business School Award for Contribution in Research & Teaching in Microwave Engineering in particular and Electronics & Communication Engineering in general. He is a Fellow of Institution of Electronics & Telecommunication Engineering, AP Academic of Sciences & a Life Member of ISTE, and a Fellow of the Institute of the Engineers.
E-mail: [email protected]
Shiban K. Koul
Shiban K. Koul is a Professor at the Centre for Applied Research in Electronics (CARE), Indian Institute of Technology Delhi and also he is presently serving as a Deputy Director (Strategy & Planning) of Indian Institute of Technology Delhi. His research interests include: RF MEMS, Device modeling, Millimeter wave IC design and Reconfigurable microwave circuits including antennas. He is the Chairman of M/s Astra Microwave Pvt. Ltd, a major private company involved in the Development of RF and Microwave systems in India. He is author/co-author of 210 Research Papers and 7 state-of-the art books. He has successfully completed 25 major sponsored projects, 50 consultancy projects and 34 Technology Development Projects. He holds 7 patents and 4 copyrights.
Dr. Koul is a fellow of the IEEE, USA, Fellow of the Indian National Academy of Engineering (INAE) India and Fellow of the Institution of Electronics and Telecommunication Engineering (IETE) India. He has received Gold Medal by the Institution of Electrical and Electronics Engineers Calcutta (1977); S.K. Mitra Research Award (1986) from the IETE for the best research paper; Indian National Sciene Academy (INSA) Young Scientist Award (1986); International Union of Radio Science (URSI) Young Scientist Award (1987); the top Invention Award (1991) of the National Research Development Council for his contribution to the indigenous development of ferrite phase shifter technology; VASVIK Award (1994) for the development of Ka- band components and phase shifters; Ram Lal Wadhwa Gold Medal (1995) from the Institution of Electronics and Communication Engineers (IETE); Academic Excellence Award (1998) from the Indian Government for his pioneering contributions to phase control modules for Rajendra Radar; Shri Om Prakash Bhasin Award (2009) in the field of Electronics and Information Technology and Teaching Excellence Award (2011) from the Indian Institute of Technology Delhi.
Dr. Koul has been appointed as a Distinguished Microwave Lecturer by the IEEE Microwave Theory and Techniques (MTT) Society, USA for the period 2012-2014. He is also a serving AdCom member of the MTT society.
Email: [email protected]