Propagation Channel in Silicon in the Sub-THz Band for MPSoCs

In this article, a new approach to the propagation channel in the Sub-THz frequency range is adopted using silicon-based technologies. This channel enables the feasibility of a Wireless-Interconnects-Network-On-Chip (WiNoC) to be implemented in a multiprocessor system-on-chip (MPSoC). However, it is functional only after limiting the silicon substrate problems validated by measurement on patch antennas manufactured in V band (40-80 GHz). The new approach consists of adding an absorbing material around the substrate. This design provides flat transmission levels over large bandwidths. Consequently, an increase in the frequency of operation to the Sub-THz range and the use of miniature vertical monopole antennas became possible. The isolation of the silicon from any interference is a major contribution in this paper that permits us to use the high resistivity silicon as a propagation medium. Based on this, a scenario of 16 antennas is subsequently analyzed as a realistic many-core network implementation.