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Constitutive material properties of microsize and nanosize hexagonal ferrites have been studied. A quasi-optical guided-wave spectrometer together with three backward-wave oscillators as the sources of radiation were used to characterize the samples in the broad frequency range from 30 to 120 GHz. The constitutive material properties have been found to be dependent on the internal morphology of the...
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...
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