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Published in:
2021 | OriginalPaper | Chapter
Electromagnetic Multi-Frequencies Filtering by a Defective Asymmetric Photonic Serial Loops Structure
Authors : M. El-Aouni, Y. Ben-Ali, I. El Kadmiri, Z. Tahri, D. Bria
Published in: Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems
Publisher: Springer Singapore
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Abstract
We study in this work the photonic band structure and the transmission coefficient through a one-dimensional (1D) structure made of asymmetric loops pasted together with a backbone of finite length. This waveguide structure exhibit pass band separated by large band gaps, in which the propagation of electromagnetic waves is prohibited. These gaps originate both from the periodicity of the system and the resonant modes of the loops. The presence of defects at the loops level inside this structure can create localized modes inside the band gaps; these modes are very sensitive to different geometrical parameters of the structure, in particularity, the ratio of the defects lengths. Hence, this structure has potential applications as filters large band gaps with a high performance.