Comments on Babinet’s Principle

Authors:Ching-Wen Hsue, Yu-Wei Chang, and Sheng-Lyang Jang

Source:FERMAT, Articles, 2016-Vol16-Jul_Aug-003

Abstract: A one-dimension transmission line model is employed to emulate the scattering behavior of electromagnetic waves incident upon complementary screens. It is found that, when Babinet's principle conditions are met, both equivalent electric terminal impedances of complementary screens are equal and negative in real values and their nature is not known. It is, therefore, pertinent to re-examine the Babinet’s Principle, pinpoint its features, as well as its limitations.

Index Terms: Babinet's principle, Transmission line theory, Complementary structure.

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Comments on Babinet’s Principle