Abstract
In this paper, a new method based on the complex images technique is
presented for analysis of 2-D periodic devices such as waveguides, directional
couplers, and coupled cavity waveguides (CCW). The main idea of this method
lies in representing the infinite summation of the periodic Green's functions
of such kind of structures in terms of finite terms of complex images. The
electric field integral equation has been used to formulate the problem and
the method of moments has been applied afterward for solving the equation.
The method has been used successfully in the analysis of different waveguides,
directional couplers, and CCWs in both rectangular and triangular lattices.
Fast convergence, simple formulations, and flexibility of the method in analyzing
different structures are the main advantages of the proposed method.
© 2009 IEEE
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