Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By E. J. Rothwell, A. K. Temme, and B. R. Crowgey

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A simple, closed-form expression for the time-domain reflection coefficient for a pulsed TE10-mode wave incident on a dielectric material discontinuity in a rectangular waveguide is presented. This formula may be used to represent the transient field reflected or transmitted by a dielectric-filled waveguide section, which is useful in material characterization routines. An exponential function approximation to the reflection coefficient is presented, and the formula is validated both numerically and experimentally.

E. J. Rothwell, A. K. Temme, and B. R. Crowgey, "Pulse reflection from a dielectric discontinuity in a rectangular waveguide," Progress In Electromagnetics Research, Vol. 97, 11-25, 2009.

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