A heuristic method to calculate the field diffracted from a double-layered dielectric wedge

Abstract

Double-layered dielectric wedges (e.g. forest or snow-covered hills, building corners with vertical gardens) are quite common obstacles that appear in radio-wave propagation channels. This article presents a heuristic method to obtain the field diffracted from a double-layered dielectric wedge. Though it uses a framework that appeared in an earlier publication, it improves upon the issue of complexity. The method proposed here reduces the requirement of solving nonlinear equations to half and makes the process substantially less time-consuming without compromising the accuracy. Hence this improvement makes the method more useful for real-time usage in emergency situations. Apart from this advantage on time consumption, this method also improves upon the memory consumption and limit of validity.

Keywords:

• Electromagnetic edge diffraction
• dielectric wedge
• heuristic diffraction coefficient
• uniform theory of diffraction
• propagation channel model

Disclosure statement

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

Additional information

Notes on contributors

Shuvodip Majumdar

Shuvodip Majumdar was born in West Bengal, India, in 1989. He received the B.Tech. degree in ECE from the Maulana Abul Kalam Azad University of Technology, India in 2011, and M.Tech. degree in Communication Engineering from University of Kalyani, West Bengal, India in 2013. Presently, he is working towards his Ph.D. at the Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, India. His research interest includes electromagnetic diffraction and propagation channel modeling.

Amitabha Bhattacharya

Amitabha Bhattacharya was born in Kolkata, India, in 1964. He received his B.Tech. (E&ECE) Degree from IIT Kharagpur in 1986, M.E. (E&TCE) from Jadavpur University in 1994, and Ph.D. (E&ECE) from IIT Kharagpur in 1998. He started his professional career in 1986 by joining as Junior Research Engineer in an ISRO sponsored research project at IIT Kharagpur and continued thereafter as a Senior Research Assistant in a DRDO sponsored research project till 1991. In 1997, he joined SAMEER, Mumbai, and then Defence Laboratory, Jodhpur, as a Research Scientist. From 2000 onwards, he joined the teaching profession, first as an Assistant Professor in the Electronics and Instrument Department of Indian School of Mines, Dhanbad, and then in 2007, in the faculty of Electronics and Electrical Communication Engineering Department of IIT Kharagpur in 2007. Presently he is working as a Professor in the same department and is involved in the teaching and research activities of the RF and Microwave Group of the E&ECE Department. Dr. Bhattacharya's research interest is in the areas of Microwave Imaging, High Power Microwaves, and Microwave Stealth Technology. He has published about 100 research publications in International Journals and Conferences and has written a textbook on “Digital Communication.” He has been Principal Investigator of 27 sponsored research projects and consultancies, has conducted 18 sponsored short term courses around the country, mainly in the areas of Electromagnetic Environments. Dr. Bhattacharya has supervised seven Ph.D. theses and thirty-eight postgraduate theses.