Providing 5G Coverage Using Optical Methods for Terahertz Frequencies

This paper studies the propagation of terahertz signals (100 GHz to 2THz) when using convex lenses. The terahertz band has a great deal of unexploited spectrum and therefore is ideally suited to provide ultra-high data rates at short ranges. The paper presents a channel model for terahertz when using convex lenses at the transmitter. The model incorporates channel impairments such as molecular absorption and lens characteristics such as a Gaussian intensity distribution. The model is verified against detailed measurements conducted using a terahertz system. We show that the model is in very close agreement with the measured data.