ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 54, (2) 116 - 121 (2010)


MICROWAVE AND ELECTRICAL PROPERTIES OF Co–Ti SUBSTITUTED Ba–Sr FERRITE
 
Singh Charanjeet 1, Narang S. Bindra 1, Hudiara I. S. 1, Sudheendran K. 2, James Raju K. C. 2, Rozanov Konstantin N. 3
 
1 Department of Electronics Technology, Guru Nanak Dev University Amritsar, Punjab, India
2 School of Physics, University of Hyderabad, Andhra Pradesh, India
3 Institute for Theoretical and Applied Electromagnetics, Russian Academy of Sciences, Russia

Keywords: Ferrites, Complex Permittivity, X-Band, Resistivity
 

The electromagnetic parameters of synthesized M-type hexagonal ferrite, Ba0.5Sr0.5CoxTixFe(12-2x)O19 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0), are measured from 8.2-12.4 GHz. The substitution of Co²⁺ and Ti⁴⁺ ions increases dielectric loss in the ferrite, suggesting for EMI shielding applications. The preferential site occupancy of substituted ions changes resistivity of ferrite. The various mechanisms behind variations of investigated parameters are discussed in this paper.


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