Reconfigurable fork shaped plasmonic graphene based nano-patch antenna for wireless network-on-chip application in THz band.

Wireless Network-on-Chip (WNoC) incorporating on-chipantennas has emerged as a promising alternative to overcome the communication bottleneck due to high frequency operation, propagation delay, crosstalk delay, noise and need for repeaters inwired interconnects in chip-multiprocessors (CMPs). Recent advancements in nano materials, such as graphene have enabled the development of novel plasmonic graphene devices, which intrinsically operate in THz band. This ultra-low power andcompact graphene-based nano-antennas (GNA) establishes ultra-high bandwidth THz-on-chip wireless links for intra/inter-chip communication. In this article, we design and simulate a novel fork-shaped planarplasmonic nano-patch antenna using grapheneon SiO2/Si substrate that can be integrated into transceivers working at THz frequencies operating from 0.5 THz to 2.6 THz. By simulation at THz band, proposed antenna performance as a wireless inter/intra-chip link is investigated by numericallyobtaining itssignal transmission coefficient characteristics between the two on-chip antennas, acting as transmitter and receiver or vice-verse for short-range THz communication among wireless NoC based multi-core processors integrated on same substrate. Theresults are obtained by placing the antennas in broadside orientation, that can communicate with intra-chip transmission coefficients ranging from − 20 dB to − 60 dB while sustaining bandwidths upto 0.13–0.2 THz. Further, the effect of transmission and radiation performance of proposed antennas with increase in distance dlink is studied along with reconfigurable nature of graphene with varying chemical potentials from 0.1 eV − 0.5 eV. Proposed antenna has obtained maximum gain and radiation efficiency of 3.89 dB and 58% at 1.83 THz when chemical potential of 0.1 eV is applied. This concept can broadly be applied to future systems as it can be directly integrated into transceivers as graphene is compatible with CMOS processes.Fabrication process steps of proposed on-chip antenna and its feasibility as a real device in chip environment isalso discussed. [ABSTRACT FROM AUTHOR]