Title :
Effects of particle size on magnetic and dielectric properties of ferrites at microwave and millimeterwave frequencies
Author :
Sharma, Ashok ; Afsar, Mohammed N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tufts Univ., Medford, MA, USA
Abstract :
Constitutive material properties of micro-size and nano-size hexagonal ferrites have been studied. Two different measurements techniques have been applied to characterize the samples in the broad frequency range from 1.7 GHz to 120 GHz. X-ray diffraction studies have been carried out to study the structure of the particles. The possible reasons for the difference in behavior of nano-powder and micro-powder sample have been discussed. A thorough error analysis has been presented to account for experimental inaccuracy.
Keywords :
X-ray diffraction; error analysis; ferrites; magnetic domains; magnetic permeability; microwave spectra; millimetre waves; nanoparticles; particle size; permittivity; BaFe12O19; SrFe12O19; X-ray diffraction; broad frequency range; constitutive material properties; dielectric properties; error analysis; frequency 1.7 GHz to 120 GHz; magnetic properties; measurements techniques; micropowder behavior; microsize hexagonal ferrites; microwave frequency; millimeterwave frequency; nanopowder behavior; nanosize hexagonal ferrites; particle size effects; particle structure; Ferrites; Frequency measurement; Microwave measurement; Millimeter wave measurements; Permeability; Permittivity measurement; Resonant frequency; Dielectric permittivity; ferromagnetic resonance; magnetic domains; magnetic permeability; nanoferrites;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
