Monday, November 23, 2015
Abstract-Active substrate integrated terahertz waveguide using periodic graphene stack
The transmission properties of a substrate integrated waveguide (SIW) based on periodic stacks have been theoretically investigated in the terahertz (THz) region. The effects of the dielectric-graphene-dielectric structure of the stack on the propagation properties are shown to be significant and different from the conventional active SIW based on active components. By varying the the cut-off frequency of the proposed waveguide can be dynamically tuned from 3 to 3.7 THz. Moreover, the tunable waveguide displays low leakage loss and single-mode propagation with −120 dB stop-band These primary results are very promising for THz integration and SIW-based systems.