Modified Perturbation Method Used for Dielectric Measurements

摘要

This paper presents a new approach for the perturbation method to measure dielectric constants temperature dependence whta two port, two piston cylindrical cavity and external furnace. Special features of this cavity are the possibility to work with different modes and different relative positions of the coupling aperture. Algorithms for cavity dielectric measurements use mostly a full network frequency scan for the perturbation method. For temperature dependent measurements the measurement points in one frequency scan will have different temperatures due to the fast cooling of the sample inside the cold cavity.