MEASUREMENT OF DIELECTRIC CONSTANT AND LOSS FACTOR OF THE DIELECTRIC MATERIAL AT MICROWAVE FREQUENCIES
نویسندگان
چکیده
منابع مشابه
Measurement of Dielectric Constant and Loss Factor of the Dielectric Material at Microwave Frequencies
A new technique to evaluate the dielectric constant and loss factor of a homogeneous dielectric material using rectangular shaped perturb cavity has been developed. The values of S-parameters are measured experimentally by placing the sample in the center of the cavity resonator. Sample under test is fabricated in the form of a cylinder. The real and imaginary part of the permittivity can be th...
متن کاملPermittivity Measurements of High Dielectric Constant Films at Microwave Frequencies
We have developed a time-domain reflectometry (TDR) technique to measure the dielectric permittivity of high dielectric constant films. The test specimen consists of a planar capacitor terminating coaxial waveguide. The complex permittivity of the dielectric in the frequency domain is obtained from appropriate analysis of the incident and the reflected voltage waves. In order to improve accurac...
متن کاملAutomatic Measurement of Complex Dielectric Constant and Permeability at Microwave Frequencies
With the advent of the computer and automatic test equipment, new techniques for measuring complex dielectric constant (a) and permeability Q can be considered. Such a technique is described where a system is employed that automatically measures the complex reflection and transmission coe5cients that result when a sample of material is inserted in waveguide or a TEM transmission line. Measureme...
متن کاملDielectric Properties of Materials at Microwave Frequencies
KŘIVÁNEK, I.: Dielectric properties of materials at microwave frequencies. Acta univ. agric. et silvic. Mendel. Brun., 2008, LVI, No. 5, pp. 125–132 The paper introduces the review of the present state of art in the measurement of the interaction of electromagnetic waves with diff erent kinds of materials. It is analysis of the possibilities of the measurement of the interaction of high frequen...
متن کاملDielectric Constant and Loss Factor of Dielectric Material Using Finite Element Method in a Cavity
A numerical technique to estimate the dielectric constant and loss factor of a homogeneous dielectric material placed in an arbitrary shaped cavity has been developed. The values of S-parameters are measured experimentally by placing the sample in the cavity. Starting with a trial set of permittivity values, the computation is carried out using the finite element technique (FEM) to match the Sp...
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
سال: 2007
ISSN: 1559-8985
DOI: 10.2528/pier06111204