Development and Characterization of Hexagonal Ferrite based Microwave Absorbing Paints at Ku-Band

Abstract

This paper deals with the development of single and double layer microwave absorbing paints using Mn-substituted Barium hexagonal ferrite. The comparative studies of both theoretical and experimental results at Ku-band have been reported. It has been found that the single layer absorbing paint exhibits peak absorption of 12.3 dB at 17.4 GHz for a thickness of 1.12 mm. Double layer absorbing paint with each layer of different composition of ferrite gives a broad band characteristics, but at the cost of lowered absorption.

Indexing terms:

• Hexagonal ferrite
• Radar cross-section
• Microwave absorbing paint

Additional information

Notes on contributors

M R Meshram

M R Meshram received his BE degree in Electronics & Telecommunication from Jabalpur University in 1988 and ME degree in Microwave and Radar from University of Roorkee, Roorkee in 1997. He worked as a Lecturer at Government Engineering College, Jagdalpur from 1989 to 1992, thereafter in August 1992 joined as a Lecturer in Department of Electronics and Telecommunication at Government Engineering College Rewa (MP). Now he is a senior Lecturer at Rewa. He was sponsored by Government of MP Technical Education and Man Power Planning Department Bhopal for doing PhD under Quality Improvement Programme of Government of India at University of Roorkee, Roorkee in July 200. He is currently working as a research scholar (QIP) in the Department of E&CE, Indian Institute of Technology, Roorkee. He is the life member of ISTE. His current interest includes Electromagnetic, Antennas and Microwave Absorbing Materials.

Nawal K Agrawal

N K Agrawal born in Varanasi. Obtained MSc Tech (Electronics) degree from BITS, Pilani in 1971 and PhD from University of Roorkee, Roorkee in 1978. Since 1971 he is in the Department of Electronics and Computer Engineering, Indian Institute of Technology, Roorkee (formerly University of Roorkee) where he is now working as Professor and is heading Microwave & Radar group in the department.

Dr Agrawal was a recipient of Roorkee University Annual Research award. He is a senior member of IEEE and life member of ISTE and ISCEE. His current interest includes Anennas, Electromagnetic and Microwave Absorbers.

Bharoti Sinha

Bharoti Sinha has received her BE (Hons) degree in Telecommunication from Jabalpur, University and ME, PhD degrees in Microwave & Radar from University of Roorkee, Roorkee respectively. From 1967 to 1977, she worked as a lecturer at VRCE Nagpur. She is currently working as Professor in the department of E&ECE at Indian Institute of Technology, Roorkee. She is a senior member of IEEE, Life member of IWSA and Fellow of IETE. Her area of interest include numerical methods applied to Electromagnetic & antennas, Microstrip antennas & RCS estimation. She has published/presented in conferences large number of papers in these areas.

P S Misra

P S Misra born on 7th April 1945. Obtained his BSc degree from Lucknow University in 1963, BE degree in Metallurgy from UOR Roorkee in 1967, ME degree in Physical Metallurgy in 1969 from IISc, Bangalore and PhD Degree in Metallurgy in 1975 from University of Roorkee, Roorkee.

Since 1978 he is continuously in the Department of Metallurgical and Materials Engineering, University of Roorkee, Roorkee. He is currently working as Professor in the Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee (formerly University of Roorkee). His current interest are in powder metallurgy, metal forming, synthesis of ceramics for specialized application and Development of Ferrite material. He has published 43 numbers of papers in the area of powder metallurgy and ceramics.