Publication date: 30 September 2026
Source: Advanced Engineering Forum Vol. 60
Author(s): Abdelouahid Ezzarfi, Mimoun El-Aouni, Youssef Ben-Ali, Francis Segovia-Chaves, Carlos Humberto Costa, Bria Driss
In this work, we focus on the interface response theory based on Green's function in order to examine the propagation of electromagnetic waves through a symmetrical loop composed of different optical materials. Numerical results show the emergence of transmission very/large zeros modes (TZs) at specific reduced frequencies. TZs result from wave reflection and destructive interference of waves propagating in the loop, playing a particular and important role in suppressing interference between different frequencies of a signal transmitted through the structure. By varying geometric and physical parameters (permittivities), we show that one can optimize transmission properties and design a rejection filter that blocks electromagnetic waves at specific frequencies, suitable for applications in wireless communications and radar.
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