Development and characterization of hexagonal ferrite based microwave absorbing paints at Ku-band

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.