Phys.org October 11, 2024
Researchers in Australia developed a novel approach for enhancing signal radiation patterns in optical wireless networks utilizing a planar optical aperture incorporated with infrared radiative element clusters to optimize signal radiation patterns through selective cluster excitation. They used dual carrier wavelength approach, leveraging an effectively large carrier wavelength for the system to avoid grating lobes occurrence due to distributed clusters. They used optimization-based algorithm to ensure optimized signal reception at the specific receiver location. Using simulations, they demonstrated the behavior of parameters like side lobe level, focal spot area, and power efficiency within the focal spot area to determine the efficient radiation pattern. According to the researchers their method enhances the reliability of line-of-sight communication by enabling each active cluster to establish a direct propagation path with the receiver… read more. TECHNICAL ARTICLE
Infrared Antenna Elements on the “Ceiling Plane” and the receiver at the “Focal Point”. Credit: Journal of Lightwave Technology, 17, September 2024