A Multi-Mode Solution for Analysis of the Reflection Coefficient of Open-Ended Rectangular Waveguides Radiating into a Dielectric Infinite Half-Space

摘要

The open-ended rectangular waveguide probe is a powerful tool for characterizing the dielectric and reflection properties of various materials and structures [1–11]. In these applications the measurable parameter, Г(i.e. the reflection coefficient), is used to determine the sought-for parameters. The said reflection coefficient is defined as the ratio of the reflected electric field at the aperture of the waveguide to that of the incident electric field.