Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	A Study of Experimental and Theoretical Shifts in a Resonant Microwave Cavity Loaded with Polar and Non-Polar Molecules in Gas Phase [PDF]
AUTHORS	G. Joni, R. Ngoui and J. Roberts 1989 24 4 227-235
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Abstract Shifts in the cavity resonance at microwave frequencies 9.034 and 18.068 GHz, at low pressures and at room temperature, have been measured using a microwave cavity technique. Various linear, diatomic, symmetric and asymmetric polar, and non polar molecules were chosen for perturbation of the cavity. The data are analyzed using a new alternative relation for dipole-dipole, and quadrupole-quadrupole interactions. The theoretical representation satisfactorily explains the observed shifts. The gas phase dielectric permittivities are also derived. Key Words: Dielectric measurement, Intermolecular forces, Dielectric properties, Microwave cavity perturbations, Electrical measurements and techniques.