本文では，中空層にひし形誘電体構造をもつ誘電体導波路の伝搬問題をFourier級数展開法と多層分割法を併用して解析し，ひし形誘電体の形状と誘電率を変化した場合の伝搬定数とエネルギー分布に及ぼす影響について検討した．%In this paper, we analyzed the guiding problem for dielectric waveguides composed of dielectric circular cylinders and loaded with deformed rhombic dielectric structure in the middle layer, and investigated the propagation characteristics by using a combination of improved Fourier series expansion method and multilayer method. Numerical results are given by complex propagation constants in the first stop band region and distribution of energy flow at the guided area for both TEo and TMo modes.
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