A CPW-Based Novel SSPP Reflectionless Low-Pass Notch Filter With Loaded Interdigitated Coupling Structure
This study sww x proposes a novel spoof surface plasmon polariton (SSPP) transmission line unit based on a coplanar waveguide (CPW) design.The dispersion relationship is derived from its equivalent circuit, and a low-pass notch filter is designed accordingly, operating in the frequency range of 0 GHz to 4.45 GHz, effectively blocking the transmissi