Results 91 to 100 of about 16,921 (260)
Advanced microwave radiometer antenna system study [PDF]
The practicability of a multi-frequency antenna for spaceborne microwave radiometers was considered in detail. The program consisted of a comparative study of various antenna systems, both mechanically and electronically scanned, in relation to specified
Kummer, W. H. +2 more
core +1 more source
A Broadband Bow-Tie Cavity-Backed Slot for Traveling-Wave Arrays in the Millimeter-Wave Band [PDF]
, 2019 The use of bow-tie geometries to enhance the characteristics of a radiating element previously proposed by the authors is presented. The previous element consisted of a broadband cavity-backed slot in transmission configuration. The bow-tie shape of the
Abdo Sánchez, Elena +2 more
core
Energy Science &Engineering, EarlyView.We present a smart solar tracking method using artificial intelligence to improve the efficiency of solar panels. Unlike traditional techniques, our system learns and adapts to changing sunlight conditions, ensuring faster and more reliable power generation for real‐world energy needs.
Rida Amine +5 more
wiley +1 more source
A microfabricated low-profile wideband antenna array for terahertz communications
Scientific Reports, 2017 While terahertz communications are considered to be the future solutions for the increasing demands on bandwidth, terahertz equivalents of radio frequency front-end components have not been realized.
K. M. Luk +6 more
doaj +1 more source
Emerging Perovskite Solar Cells for Building‐Integrated Photovoltaic Applications
Information &Functional Materials, EarlyView.In this review, we discuss technological approaches of perovskite solar cells that are highly compatible with the requirements of building‐integrated photovoltaic applications, including semi‐transparent, colorful, and flexible perovskite solar cells.
Yongke Liang +4 more
wiley +1 more source
A spatially shifted beam approach to subwavelength focusing
, 2008 Although negative-refractive-index metamaterials have successfully achieved subwavelength focusing, image resolution is limited by the presence of losses.
A. Yariv +7 more
core +1 more source
Interdisciplinary Medicine, EarlyView.Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng +10 more
wiley +1 more source
Low-Sidelobe Flat Panel Array Fed by a 3D-Printed Half-Mode Gap Waveguide Amplitude-Tapering Network
IEEE AccessThis article presents the design and evaluation of an $8\times 8$ Ka-band low-sidelobe slot array antenna using gap waveguide technology. The slot array is fed by a single-layer amplitude-tapering network implemented in half-mode groove gap waveguide ...
Adrian Castella-Montoro +3 more
doaj +1 more source
Investigation on SIW Slot Antenna Array with Beam Scanning Ability
International Journal of Antennas and Propagation, 2019 A sparse substrate integrated waveguide (SIW) slot antenna array and its application on phase scanning are studied in this paper. The genetic algorithm is used to optimize the best arrangement for 8-element and 7-element sparse arrays over an aperture of
Yanfei Li, Yang Li
doaj +1 more source
Dual-Frequency SIW Slot Array Antenna for Automotive Radar: configurable FoV, Performance Evaluation, and Tolerance Analysis [PDF]
Advances in Radio ScienceThis paper presents a single-layer SIW longitudinal slot array antenna optimized for high gain and low side lobe levels (SLL) in the W-band, designed for LMRR (Long Medium Range Radar) applications.
N. Feiz +5 more
doaj +1 more source