Abstract
This paper presents successive studies of single-, double-, and triple-layered metasurface-based bandpass filters along with their equivalent circuit modeling and mathematical analyses. A triple-layered bandpass filter operating in the THz region is reported exhibiting flattop passband response while maintaining transmission of more than 95% over the entire passband starting from the design of a single-layered bandpass filter configuration. A stepwise mathematical analysis is carried out for the single-layered structure and compared with the simulation data, where the two results have been found in good agreement. Thereafter, the study is extended for double- and triple-layer bandpass filters. The triple-layered structure offers a very steep transition between passband and stopband with noise-free background, and thereby offers a potential candidate for 6G communication.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Isa Mazraeh-Fard and Abbas Alighanbari
Appl. Opt. 61(19) 5760-5768 (2022)
Wenli Huang, Xiaoqing Luo, Yuanfu Lu, Fangrong Hu, and Guangyuan Li
Appl. Opt. 60(22) 6366-6370 (2021)
Ali Maleki, Avinash Singh, Ahmed Jaber, Wei Cui, Yongbao Xin, Brian T. Sullivan, Robert W. Boyd, and Jean-Michel Ménard
Photon. Res. 11(4) 526-532 (2023)