A Study Absorbance and Attenuation Coefficient and Impedance of Y-Type (Ba22 Co2-x Znx Fe12 O22) for Microwaves

Abstract

In this research, a compound was prepared from hexagonal Ferrite with a chemical formula of (Ba2Co2-xZnxFe12O22) When the values of (x = 0.8,1,1.2), to study its absorbance ,attenuation coefficient, impedance to the microwaves within the
range of X-band (8-12 GHz) and test it using Network Analyzer .The ceramic method (Solid state reaction) was used to to prepare three formulas of this compound:(Ba₂Co_1.2Zn_0.8Fe₁₂O₂₂), (Ba₂CoZnFe₁₂O₂₂), and (Ba₂Co_0.8Zn_1.2Fe₁₂O₂₂). Nine samples were prepared with Parallelogram shape to fit the wave guide of the device to test them properly . The tests of the absorbance, the attenuation coefficient and the impedence were carried out for these samples. The results showed that the increase of sintering temperature lead to increase the attenuation coefficient and the absorbance. The best values were found at T= 1250C.It has been found that the compound (Ba₂CoZnFe₁₂O₂₂) has the best value of the absorbance and the impedence.