Title :
Application of the matched THz power meter for material characterization in free space
Author :
Kapilevich, B. ; Pinhasi, Y. ; Litvak, B.
Author_Institution :
Ariel Univ. Center of Samaria, Ariel, Israel
Abstract :
The paper describes an application of the wide-band THz matched power meter (MPM) for determination complex permittivity of lossy materials in mm and sub-mm range. The measured power transmission coefficient of dielectric slab as a function of incident angle is used for estimating dielectric constant by applying the root-finding procedure to the proper formulated system of the two non-linear equations. Examples of the evaluation the complex dielectric constant of lossy materials are reported at frequency 0.33 THz. The method can also be extended to wider frequency range within 0.1-3 THz.
Keywords :
dielectric materials; nonlinear equations; permittivity measurement; power meters; terahertz materials; complex dielectric constant estimation; determination complex permittivity; dielectric slab; free space material characterization; frequency 0.1 THz to 3 THz; incident angle function; lossy material; nonlinear equation; power transmission coefficient measurement; root-finding procedure; wide-band THz MPM; wide-band THz matched power meter; Antenna measurements; Dielectric constant; Materials; Measurement uncertainty; Permittivity measurement; Power measurement; Material characterization; THz power meters; mm-waves and sub-mm-waves;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2011 IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4577-1692-8
DOI :
10.1109/COMCAS.2011.6105763
