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In this study, novel low-loss waveguides and power dividers forultra-broadband surface plasmon polaritons (SPPs) are introduced. This articleuses complementary metasurfaces in place of traditional SPP, which aretypically produced as metasurface unit cells on the dielectric sublayer. It hasbeen demonstrated that the use of complementary metasurfaces considerablyimproves wave confinement and inhibits wave propagation. Because of this, it isanticipated that waveguides and power dividers made from these complimentaryunit cells will have significantly lower losses and greater bandwidth than SPPused in traditional devices. In the frequency range of 0 GHz to 100 GHz,waveguides and bent waveguides with complementary metasurface unit cellsexhibit insertion loss greater than 0.5 dB. Utilizing complementarymetasurfaces, symmetric and asymmetric power dividers have been created andresearched. The results of the simulation have shown that using this type ofunit cell in the construction of microwave devices is advantageous.

Design and Analysis of Pseudospin-Polarized Ultra-Wideband Waveguide Supporting Hybrid Spoof Surface Plasmon Polaritons