Highly directional waveguide grating antenna for optical phased array
Sign Up to like & getrecommendations! Published in 2018 at "Current Applied Physics"
DOI: 10.1016/j.cap.2018.04.004
Abstract: Abstract A highly directional waveguide grating antenna by patterning top cladding has been proposed. Spatial separation of the grating structure from the waveguide reduces the strength of perturbation to achieve a millimeter-scale emission. The optimized… read more here.
Keywords: waveguide; highly directional; grating antenna; structure ... See more keywords
Synergetic UAV-RIS Communication With Highly Directional Transmission
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2021.3136912
Abstract: The effective integration of unmanned aerial vehicles (UAVs) in future wireless communication systems depends on the conscious use of their limited energy, which constrains their flight time. Reconfigurable intelligent surfaces (RISs) can be used in… read more here.
Keywords: highly directional; synergetic uav; uav ris; communication ... See more keywords
Surface Condition Sensing With Broadband and Highly Directional PMUT Array
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2025.3601660
Abstract: Ultrasound propagation attenuation coefficient detection is a widely used technique for distinguishing different media types. Multifrequency ultrasound detection provides comprehensive information but requires ultrasonic transducers with a broad bandwidth. This study presents a piezoelectric micromachined… read more here.
Keywords: pmut array; surface; array; highly directional ... See more keywords