The exact surface impedance approach to problems of diffraction in open waveguides
Abstract
An exact approach to diffraction problems for open planar waveguides is described. This is based on total field analysis instead of on a model-matching technique. Within it, the rigorous impedance boundary condition is derived in integral form suitable for further treatment of the problem by Wiener-Hopf methods. As an example, the problem of guided and leaky mode scattering at a junction between two planar, isotropic, symmetric waveguides is considered. The Wiener-Hopf-Hilbert method is used and an exact, closed-form solution is obtained. Possible applications in integrated optics are indicated.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1984
- Bibcode:
- 1984STIN...8425888N
- Keywords:
-
- Impedance;
- Wave Diffraction;
- Waveguides;
- Electromagnetic Fields;
- Integral Equations;
- Integrated Optics;
- Wiener Hopf Equations;
- Communications and Radar