EurekAlert April 27, 2021
A team of researchers in the US (Rice University, Brown University) investigated the idea of harnessing these specular NLOS (Non-Line-Of-Sight) paths for communication in directional networks at frequencies above 100 GHz. They explored several illustrative transmitter architectures, such as conventional substrate-lens dipole antenna and a leaky-wave antenna, to learn how these high-gain directional antennas offer both new challenges and new opportunities for exploiting NLOS paths. The results demonstrated the sensitivity to antenna alignment, power spectrum variations, and the disparity in supported bandwidth of various line-of-sight (LOS) and reflected path configurations. They showed that NLOS paths can, under certain circumstances, offer even higher data rates than the conventional LOS path. The results illustrate the unique opportunities that distinguish THz wireless systems from those that operate at lower frequencies…read more. Open Access TECHNICAL ARTICLE
A schematic of the experiment consisting of two reflectors at 10° of the LOS path on either side… Credit: APL Photonics, Volume 6, Issue 4, April 27, 2021Â