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Permittivity sensing and measurement with novel split ball resonator using E‐field perturbation technique
Author(s) -
Hayat Touseef,
Ejaz Tahir,
Naveed Muhammad,
Zaidi Tahir,
Rahman HamoodUr
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31037
Subject(s) - permittivity , resonator , electric field , capacitive sensing , microwave , relative permittivity , materials science , perturbation (astronomy) , acoustics , dielectric , computational physics , physics , optoelectronics , electrical engineering , engineering , quantum mechanics
A method of designing low‐loss split‐ball resonator (SBR) for permittivity sensing and measurement at microwave frequencies using resonant perturbation technique is being presented. SBR geometry strengthens electric field in the capacitive region by confining greater resonant energy in the split. Enhanced sensitivity by virtue of potent electric field enabled us to sense and measure permittivity of common polar solvents (methanol and ethanol). Comparative analysis, eigenmode simulations, and empirical measurements exhibited improved sensitivity of SBR. The solution of Maxwell equations for boundary conditions before and after material perturbation produce expressions, which lead to permittivity evaluation.