توهين الموجات الرادوية و المايكروية باستخدام المنطاط المشاب بمواد فيراتية حديدية من نوع (Znx Mg1-xFe2O4)‎

Abstract EN

Due to the lack of the presence of a lot of materials that are relative permeability greater than one (μr> 1) the extent of the radio waves any extent to which a frequency greater than one 1GHz which encouraged many researchers to search for materials to be relative Permeability (μr > 1) were used ferrite materials characterized by high relative Permeability.

prepared ferrite zinc - magnesium 〖Zn〗_x 〖Mg〗_(1-x) 〖Fe〗_2 O_4 and values x = (0,0.3,0.6,0.9,1) by common chemical deposition was added to the NBR rubber with values (3 , 6,9) g were studied its ability to absorb radio waves at the long wavelength (12 - 8) GHz where results showed that the highest value of the reflection coefficient of the loss of up to - 23dB when 3g Add to the rubber in the long wavelength of (10.5-11) GHz when the ratio x = 0.6 and the results also showed that the greatest loss of obtained when adding 6g of ferrite zinc - magnesium is to rubber (-43.dB) at the frequency (10.7) GHz.

It was also studying of reflection coefficient as well as the relative permeability account (μr) of the samples prepared.