This work is licensed under Creative Commons Attribution–NonCommercial International License
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The interaction between standing Sommerfeld microwaves within a system comprising two closely spaced conducting rings gives rise to pronounced resonance phenomena. The behavior of this system depends on the relative arrangement of the receiving and transmitting points. Specifically, it leads to a sharp reduction or enhancement of signal output within a narrow frequency range. Remarkably, this structure can serve dual roles: acting as both a band-stop filter and a band-pass filter, all within the same restricted frequency band.