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Microwave Properties of Co-Zr Substituted M-type Ba-Sr Hexagonal Ferrite
Abstract
The microwave characteristics of M-type hexagonal ferrite, Ba0.5Sr0.5CoxZrxFe (12−2x) O19 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0), have been investigated as a function of frequency and substitution at X-band, while the current voltage characteristics are reported as a function of voltage and substitution. It is observed that all compositions reflect minimum microwave power in the low frequency region and it is least in composition x=0.8 at 9 GHz, making it useful as microwave absorber for radar applications. Compositions x= 0.0, 0.4, 0.6, 0.8 and 1.0 show ohmic behavior along the entire investigated voltage.
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