Application of the Trapez-Method to the Calculation of Coupling Matrices between Uniaxial Guide Modes
Charmolavy G. L. Nkouka Moukengue *
Electronics and Electrical Engineering Laboratory, Ecole Nationale Supérieure Polytechnique, Université Marien Ngouabi, Brazzaville, Republic of the Congo.
B. Mafouna Kiminou
Electronics and Electrical Engineering Laboratory, Ecole Nationale Supérieure Polytechnique, Université Marien Ngouabi, Brazzaville, Republic of the Congo.
Odilon Nguembo
Electronics and Electrical Engineering Laboratory, Ecole Nationale Supérieure Polytechnique, Université Marien Ngouabi, Brazzaville, Republic of the Congo.
*Author to whom correspondence should be addressed.
Abstract
In this paper, we determine the different possible couplings at the discontinuities of the two circular and rectangular waveguides using the trapez-method. The development of the normal modes of the fields allows us to obtain the amplitude of the fields of the transverse electric (TE) and magnetic (TM) modes. The calculation of the coupling integrals allows us to obtain the coupling matrices and to verify if the coupling is possible or not between the modes of these two waveguides.
Keywords: Coupling, discontinuities, waveguides, trapez-method