@article { ISI:000273204100059,
	title = {Flexible microwave absorber based on nickel ferrite nanocomposite},
	journal = {Journal of Alloys and Compounds},
	volume = {489},
	number = {1},
	year = {2010},
	month = {JAN},
	pages = {297-303},
	publisher = {ELSEVIER SCIENCE SA},
	address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND},
	abstract = {<p>Flexible magnetic composite materials were prepared by incorporating precharacterized nickel ferrite nanoparticles in a natural rubber matrix. The complex dielectric permittivity and magnetic permeability of the composites were measured at different microwave frequencies using the cavity perturbation technique. A steady increase in dielectric permittivity was observed with increase in filler concentration. Maxwell-Garnett mixture equations were employed to model the effective permittivity and permeability of the composite. Reflection loss was estimated by employing the model of single layer absorber backed with a perfect conductor. Reflection loss minima of -5.9 dB at 3.2 GHz for 12 mm thick rubber ferrite composite sheet is obtained in the S-band while a loss up to -16 dB could be achieved at 9.5 GHz in the X-band. (C) 2009 Elsevier B.V. All rights reserved.</p>},
	keywords = {Cavity perturbation, Complex permeability, Complex permittivity, Microwave absorber, Nanocomposites, Nickel ferrite},
	issn = {0925-8388},
	doi = {10.1016/j.jallcom.2009.09.077},
	author = {Sunny, Vijutha and Kurian, Philip and Mohanan, P. and Joy, Pattayil Alias and Anantharaman, Maliemadom R.}
}
@article { ISI:000340267600082,
	title = {Flexible microwave absorbers based on barium hexaferrite, carbon black, and nitrile rubber for 2-12 GHz applications},
	journal = {Journal of Applied Physics},
	volume = {116},
	number = {2},
	year = {2014},
	month = {JUL},
	pages = {024902},
	publisher = {AMER INST PHYSICS},
	address = {CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA},
	abstract = {<p>Flexile single layer electromagnetic wave absorbers were designed by incorporating appropriate amounts of carbon black in a nitrile butadiene rubber matrix along with an optimized amount of magnetic counterpart, namely, barium hexaferrite for applications in S, C, and X-bands. Effective dielectric permittivity and magnetic permeability were measured using cavity perturbation method in the frequency range of 2-12 GHz. The microwave absorbing characteristics of the composites were studied in the S, C, and X-bands employing a model in which an electromagnetic wave is incident normally on a metal terminated single layer. Reflection loss exceeding -20 dB is obtained for all the samples in a wide frequency range of 2-12 GHz when an appropriate absorber thickness between 5 and 9 mm is chosen. The impact of carbon black is clearly observed in the optimized composites on the mechanical strength, thickness, band width of absorption, dielectric properties, and absorptivity. (C) 2014 AIP Publishing LLC.</p>},
	issn = {0021-8979},
	doi = {10.1063/1.4886382},
	author = {Vinayasree, S. and Soloman, M. A. and Sunny, Vijutha and Mohanan, P. and Kurian, Philip and Joy, Pattayil Alias and Anantharaman, Maliemadom R.}
}
