Hjm. Bastiaansen et al., SOURCE-TYPE INTEGRAL-EQUATION ANALYSIS OF CIRCULARLY CURVED CHANNEL WAVE-GUIDES IN A MULTILAYERED BACKGROUND, IEEE transactions on microwave theory and techniques, 43(7), 1995, pp. 1597-1604
The source-type integral equation method has proven to be a powerful m
odeling tool for straight ridge waveguides. This method is full-vector
ial and mathematically rigorous. In a previous publication the source-
type integral equation method has also been successfully applied to ci
rcularly curved channel waveguides in a homogeneous background. In the
present paper this approach-is extended to circularly curved channel
waveguides embedded in a multilayered background. These are the type o
f waveguide structures that are usually encountered in integrated-opti
cal and optoelectronic devices.