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A compact spoof plasmonic 4-way frequency splitter with band-pass filters at microwave frequencies is proposed. The ultrathin metal structure is placed on a dielectric substrate. Each branch of the splitter is composed of periodic metal grating structures and the groove depth of each branch is different. To make the structure more compact, the meander grooves are introduced for the branch with deepest...
A 4-way frequency splitter at microwave frequencies based on plasmonic broadband slow-wave systems is proposed. The broadband slow-wave systems can make electromagnetic (EM) waves at different frequencies stopped at different locations. By carefully designing the open-end stubs with different lengths at the locations where the EM waves are stopped, the EM waves can be released and propagated along...
A wavelength demultiplexer based on plasmonic broadband slow-wave systems is proposed. The broadband slow-wave systems consists of subwavelength metal/insulator/metal (MIM) grating waveguide with periodic grooves on their inner boundaries and can make electromagnetic (EM) waves at different frequencies stopped at specified locations. The simulation results show good agreement with the theoretical...
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