Microwave Technologies-- Determination of Magnetic and Dielectric Materials Microwave Properties

Details Microwave Technologies-- Determination of Magnetic and Dielectric Materials Microwave Properties Microwave Technologies-- Determination of Magnetic and Dielectric Materials Microwave Properties

2009-06-16

arxiv.org/abs/0906.2928v1

Physics

Instrumentation and Detectors

Scientific paper

In this study, four different techniques are presented. 1 Rectangular waveguide measurement technique for normal microwave materials microwave properties such as permeability and permittivity. This technique removed guess parameter and dispersive effect issues of the old waveguide measurement techniques. It projects a new route for determination of any microwave materials magnetic and dielectric properties without using any guesses. 2 Coaxial probe measurement technique for the liquid and biological tissues dielectric permittivity. This coaxial probe technique has an advantage which is to attain the highest reflected signal from the coaxial probe tip, so that it is a fast and very sensitive technique to differentiate lossy materials dielectric permittivity. This technique could be useful non destructive detections for tumors in hospital and non destructive detections for chemical liquids as well. 3 A microstripline measurement technique for oxides microwave measurement at low frequency spectra where the waveguide technique becomes robot and cumbersome. 4 A new methodology is presented for the rectangular waveguide technique to determine microwave metamaterials refractive index, permeability and permittivity using the rectangular waveguide. In summary, the presented techniques are capable enough to determine magnetic and non magnetic solid state materials, liquids, powders and biological tissues microwave properties from the broad microwave frequencies spectra between 1 GHz to 50 GHz. Lastly, a special ferrites microwave properties are also presented since the negative refractive index from the insulator ferrite could be an interesting subject.

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