Non-destructive Dielectric Measurements and Calibration for Thin Materials Using Waveguide-Coaxial Adaptors
نویسندگان
چکیده
1 Communication Engineering Department, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Malaysia, e-mail: [email protected] 2 Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia, e-mail: [email protected] 3 School of Electrical Systems Engineering, Universiti Malaysia Perlis, Taman Seberang Jaya Fasa 3, Kuala Perlis, Perlis, Malaysia, e-mail: [email protected] 4 School of Mechatronic Engineering, University Malaysia Perlis, Ulu Pauh Campus, 02600 Arau, Perlis, Malaysia, e-mail: [email protected]
منابع مشابه
Application of a Coaxial-fed Patch to Microwave Non-destructive Porosity Measurements in Low-loss Dielectrics
An air-spaced coaxial-fed patch antenna to be used as a microwave sensor for non-destructive porosity measurements in lowloss dielectric materials is presented. The variation of the patch resonant frequency when it is put on the surface of the material under test is used to estimate the dielectric permittivity. Then, a standard two-phase mixture model is used to derive the material degree of po...
متن کاملPlasmon dispersion in coaxial waveguides from single-cavity optical transmission measurements.
We determine the plasmon dispersion relation in coaxial waveguides composed of a circular channel separating a metallic core and cladding. Optical transmission measurements are performed on isolated coaxial nanoapertures fabricated on a Ag film using focused ion-beam lithography. The dispersion depends strongly on the dielectric material and layer thickness. Our experimental results agree well ...
متن کاملHigh Frequency Testing to Determine Permittivity and Loss Tangent of Embedded Passive Materials
ing dielectric permittivity and loss tangent of embedded passive materials. The measurements are made in an APC-7 coaxial configuration where the test specimen represents a load terminating an air-filled coaxial transmission line. The method is suitable for testing high dielectric constant (high-k) polymer-composite materials having nominal thickness of 1 μm to 300 μm at frequencies of 100 MHz ...
متن کاملComplex 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 کاملHigh frequency dielectric relaxation in polymers filled with ferroelectric ceramics
We investigated the dielectric relaxation process in high-dielectric constant polymer composite films filled with barium titanate particles. In order to extend the dielectric measurements to the microwave range, we employed a new broadband measurement technique where a thin film capacitance terminating a coaxial waveguide is treated as a transmission line. The complex permittivity, measured at ...
متن کامل