LOW-LOSS COMPLEX PERMITTIVITY AND PERMEABILITY DETERMINATION IN TRANSMISSION/REFLECTION MEASUREMENTS WITH TIME-DOMAIN SMOOTHING
نویسندگان
چکیده
منابع مشابه
Complex Permittivity Determination from Propagation Constant Measurements
This letter presents a new transmission line method for measuring the complex permittivity of dielectric materials using propagation constant measurements. In contrast to previous methods, a network analyzer calibration is unnecessary since calibrated scattering parameters are not required. We use measurements in X-band waveguide to show that this technique compares well with the transmission/r...
متن کاملOptimization Techniques for Permittivity and Permeability Determination
This paper discusses optimization techniques for the determination of complex permittivity and permeability in transmission lines. The traditional theoretical model using scattering parameters is extended into a mathematical regression model that can be solved with widely accepted numerical techniques. This new model produces accurate primary mode results for the samples tested including nonmag...
متن کاملUnique Permittivity Determination of Low- Loss Dielectric Materials from Transmis- Sion Measurements at Microwave Frequen- Cies
A non-resonant microwave method has been proposed for accurate complex permittivity determination of low-loss materials. The method uses two measurement data of the magnitude of transmission properties of the sample. While the first datum must correspond to a frequency point resulting in a maximum magnitude of transmission properties, the other can be any datum at a frequency different than the...
متن کاملFrequency domain complex permittivity measurements at microwave frequencies
Overview of frequency domain measurement techniques of the complex permittivity at microwave frequencies is presented. The methods are divided into two categories: resonant and non-resonant ones. In the first category several methods are discussed such as cavity resonator techniques, dielectric resonator techniques, open resonator techniques and resonators for non-destructive testing. The gener...
متن کاملTime Domain Reflectometry: Temperature- dependent Measurements of Soil Dielectric Permittivity
The purpose of this study is to determine the temperature influence on the soil bulk dielectric permittivity, ε b, calculated from the measurement of the electromagnetic wave velocity of propagation along the parallel waveguide in a TDR probe, i.e. a probe working in Time Domain Reflectometry technique. The experimental evidence shows that the existing models do not completely describe the temp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress In Electromagnetics Research M
سال: 2015
ISSN: 1937-8726
DOI: 10.2528/pierm15073010