Further analysis of open-ended dielectric sensors

The effect on the input reflection coefficient of the dimensions of open-ended coaxial lines is investigated. Using a standard FDTD technique, the effects of variations in the flange and conductor dimensions on the reflection coefficient of a 3.6 mm coaxial line immersed in water or methanol are sim...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 1995-08, Vol.43 (8), p.1986-1989
Hauptverfasser:	Okoniewski, M., Anderson, J., Okoniewska, E., Caputa, K., Stuchly, S.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Coaxial components Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductors Dielectric properties of solids and liquids Dielectrics Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Finite difference methods Flanges General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Methanol Moment methods Permittivity (dielectric function) Physics Reflection Sensor phenomena and characterization Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Time domain analysis
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Zusammenfassung:	The effect on the input reflection coefficient of the dimensions of open-ended coaxial lines is investigated. Using a standard FDTD technique, the effects of variations in the flange and conductor dimensions on the reflection coefficient of a 3.6 mm coaxial line immersed in water or methanol are simulated. Simulation results are compared with measurements and previous moment method calculations. It is found that the presence or absence of a flange affects the input reflection coefficient substantially in some cases. The results also show that inversion formulas developed for lines with infinite flanges are not valid for flanges with finite radii.< >
ISSN:	0018-9480 1557-9670
DOI:	10.1109/22.402291