Metasurfaces for Resonant Tunneling Diodes with Double Metal Waveguides

The paper proposes designs of distributed resonant tunneling diodes (RTDs) with a double metal waveguide (DMW), in the top electrode of which a periodic pattern (metasurface) is formed based on holes in a hexagonal array and a chain of slotted (split-ring) resonators. This solution will make it possible to control the phase velocity of the propagating wave and increase the wave impedance in order to reduce ohmic losses in the waveguide, as well as to create a generation mode in it. For the proposed designs of metasurfaces, electromagnetic modeling was carried out and the input impedances of the resonators were calculated.