Universal curves for the horizontal polarization reflection coefficient

A set of universal curves is presented by which the approximate magnitude and phase of the reflection coefficient for horizontal polarization can be determined at any grazing angle with relatively little computation. The approximation is excellent when the relative impedance ratio of the two mediums is high, and sufficiently accurate for almost all engineering purposes even when the impedance ratio is only moderately greater than unity. This set of curves is intended to be a companion to a similar set described in a previous article for the vertical polarization reflection coefficient.