Equivalent Circuit Model of Resonant-EBG Bandstop Filter

ABSTRACT

In this paper, we present an equivalent circuit model of a uni-planar electromagnetic bandgap (EBG) structure. The equivalent circuit is developed by the combination of lumped element representation of distributed elements. The EBG structure is coupled to the transmission line and the coupling is modelled by a capacitor between the structure and the transmission line. The circuit simulated results match well with the electromagnetic simulation results.

KEYWORDS:

• Electromagnetic bandgap structure
• equivalent circuit
• interdigital capacitor
• meander line inductor

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Lalithendra Kurra

Lalithendra Kurra received the BE degree in electronics and communication engineering from Arunai Engineering College, Tamil Nadu in 2001 and the MTech degree in radar and microwave engineering from College of Engineering, Andhra University, Andhra Pradesh in 2004. He worked as an assistant professor for five and half years during 2004–2009 in CVR college of Engineering, Hyderabad, Andhra Pradesh. He joined the Centre for Applied Research in Electronics, I. I. T. Delhi, India in 2009 as a full-time PhD candidate and submitted his thesis in November 2014 and presently working as an associate professor in CVR College of Engineering, Hyderabad. His main research interests are EBG structures, microwave integrated circuits, and planar antennas.

E-mail: [email protected]

Mahesh P. Abegaonkar

Mahesh P. Abegaonkar received the PhD degree in physics (microwaves) from University of Pune in 2002. He worked as a post-doctoral researcher and an assistant professor at Kyungpook National University Daegu, South Korea during 2002–2005. Currently, he is an associate professor at the Centre for Applied Research in Electronics (CARE), Indian Institute of Technology (IIT) Delhi. His current research activities include microwave and millimeter wave antennas, EBG and DGS structures and reconfigurable microstrip circuits. He is currently the secretary and treasurer of IEEE MTT-S Chapter under Delhi Section.

E-mail: [email protected]

Shiban K. Koul

Shiban K. Koul received the BE degree in electrical engineering from the Regional Engineering College, Srinagar, India, in 1977, and the MTech and PhD degrees in microwave engineering from the Indian Institute of Technology, Delhi, India. He is a professor at the Centre for Applied Research in Electronics, and the deputy director (strategy and planning) at the Indian Institute of Technology (IIT), Delhi, India, where he is involved in teaching and research activities. His research interests include RF MEMS, device modelling, 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 192 research papers and 7 state-of-the art books. He has successfully completed 25 major sponsored projects, 50 consultancy projects, and 30 technology development projects. He holds 7 patents and 4 copyrights.

Prof. Koul is a fellow of IEE, USA, fellow of the Indian National Academy of Engineering (INAE) India, and fellow of the Institution of Electronics and Telecommunication Engineers (IETE) India. He has received Gold Medal presented by the Institution of Electrical and Electronics Engineers Calcutta (1997), S.K. Mitra Research Award from IETE for the best research paper; Indian National Science 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 contributions 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 Telecommunication Engineers (IETE); Academic Excellence award (1998) from Indian Government for his pioneering contribution to phase control module, the Rajendra Radar Shri Om Prakash Bhasin Award (2009) in the field of Electronics and Information Technology, teaching excellence award from IIT Delhi in 2012 and IEEE Distinguished Educator Award (2014). Prof. Koul is a distinguished IEEE Microwave Theory and Techniques lecturer for the year 2012–2014.

E-mail: [email protected]