Journal article
An ultra-wideband dielectric material characterization method using grounded coplanar waveguide and genetic algorithm optimization
Applied physics letters, v 107(107), p142908
Oct 2015
Abstract
An ultra-wideband complex permittivity extraction method is reported here using numerical fitting of scattering parameters to measured results. A grounded coplanar waveguide transmission line is realized on an unknown dielectric material, whose dielectric constant and loss tangent are extracted by the best fitting of the simulated magnitude, |S21|, and phase, ϕ21, of forward scattering parameter using an electromagnetic full-wave simulator (high frequency structure simulator) to the measured results. The genetic algorithm is employed for optimum rapid extraction, where errors between the numerically simulated and measured S21 (|S21| and ϕ21) are minimized in an iterative manner. As long as the convergence criterion is not satisfied, modifications to dielectric properties are made with this genetic algorithm implemented in Matlab. Feasibility of this extraction technique is validated on benzocyclobutane polymer from 10 MHz to 40 GHz.
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Details
- Title
- An ultra-wideband dielectric material characterization method using grounded coplanar waveguide and genetic algorithm optimization
- Creators
- Massinissa Hadjloum - University of NantesMohammed El Gibari - University of NantesHong Wu Li - University of NantesAfshin S. Daryoush - Drexel University
- Publication Details
- Applied physics letters, v 107(107), p142908
- Publisher
- American Institute of Physics
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000363422100055
- Scopus ID
- 2-s2.0-84943788258
- Other Identifier
- 991019168575104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Applied