Dual chamber transmission/reflection method for high temperature electromagnetic material characterization

摘要

The ability to determine the electromagnetic properties of materials at high temperatures has applications in the industrial, aerospace, defense and scientific communities. Currently, the industry standard method requires two levels of calibration, an initial thru-reect-line calibration of the room temperature section followed by a Tier II (short, empty) response calibration of the high temperature section, in order to extract the desired permittivity and permeability values at high temperatures. This technique requires three measurements (short, empty and sample) at the desired temperatures, thus requiring three days to perform measurements due to inherent thermal constraints.