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A new technique to evaluate the complex permittivity of a homogeneous dielectric material using rectangular waveguide | IEEE Conference Publication | IEEE Xplore

A new technique to evaluate the complex permittivity of a homogeneous dielectric material using rectangular waveguide


Abstract:

This paper presents a simple waveguide measurement technique to evaluate the complex permittivity of a homogenous dielectric material. The dielectric sample is loaded in ...Show More

Abstract:

This paper presents a simple waveguide measurement technique to evaluate the complex permittivity of a homogenous dielectric material. The dielectric sample is loaded in the transmission line rectangular waveguide WR90. The S-parameters of the waveguide are measured by Network analyzer and calculated as a function of the complex permittivity using theory of transmissions lines. Using the MatLab Optimization Tools simple MatLab scripts are written to search for complex permittivity of a dielectric material so as to match the measured and calculated values of S-parameters. The complex permittivity of Teflon and Nylon at the X-band frequencies are then determined.
Date of Conference: 14-16 April 2014
Date Added to IEEE Xplore: 29 September 2014
ISBN Information:
Conference Location: Marrakech, Morocco

References

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