Results 41 to 50 of about 61,537 (311)
Contact Lens with Moiré Patterns for High‐Precision Eye Tracking
Advanced Functional Materials, EarlyView.This work presents a passive contact lens for high‐precision eye tracking, integrating a microscopic moiré grating label. The parallax‐induced shift of macroscopic moiré patterns enables angle measurement with 0.28° precision using a standard camera under ambient light.
Ilia M. Fradkin +11 more
wiley +1 more source
, 1974 A turnstile slot antenna is disclosed, the antenna being for and integral with a spacecraft having a substantially cylindrical body portion. The antenna comprises a circumferential slot about the periphery of the spacecraft body portion with an annular ...
Munson, R. E.
core +1 more source
A dual-polarized slot antenna for millimeter waves [PDF]
, 1998 We describe a new dual-polarized slot antenna to be used with quad-optical devices such as superconductor-insulator-superconductor (SIS) mixers at millimeter and submillimeter wavelengths.
Chattopadhyay, Goutam, Zmuidzinas, Jonas
core +2 more sources
Advanced Functional Materials, EarlyView.A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu +5 more
wiley +1 more source
Ultra-Wideband 8-Port MIMO Antenna Array for 5G Metal-Frame Smartphones
IEEE Access, 2019 A design of an ultra-wideband eight-port multiple-input multiple-output (MIMO) antenna array in a smartphone with an open-slot metal frame for fifth-generation (5G) communications is presented. Each element is fed by a microstrip line with a tuning stub,
Xugang Zhang +3 more
doaj +1 more source
Multi-slot optical Yagi-Uda antenna for efficient unidirectional radiation to free space
, 2013 Plasmonic nanoantennas are key elements in nanophotonics capable of directing radiation or enhancing the transition rate of a quantum emitter. Slot-type magnetic-dipole nanoantennas, which are complementary structures of typical electric-dipole-type ...
Cheon, Sangmo +13 more
core +2 more sources
Half-mode substrate-integrated-waveguide cavity-backed slot antenna on cork substrate [PDF]
, 2016 A wideband half-mode substrate-integrated-waveguide cavity-backed slot antenna covering all Unlicensed National Information Infrastructure (U-NII) radio bands (5.15-5.85 GHz) is designed, fabricated, and validated.
Agneessens, Sam +7 more
core +2 more sources
Novel Functional Materials via 3D Printing by Vat Photopolymerization
Advanced Functional Materials, EarlyView.This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov +3 more
wiley +1 more source
A design of Microstrip Patch Antenna using hybrid fractal slot for wideband applications
Ain Shams Engineering Journal, 2018 The paper presents a design of Microstrip Patch Antenna (MPA) using hybrid fractal slot (Koch-Minkowski and Koch-Koch) along with partial ground plane for wideband applications.
Narinder Sharma, Vipul Sharma
doaj +1 more source
New Circular-Slot Circularly Polarized Antenna with Modified Characteristic
International Journal of Antennas and Propagation, 2022 In this article, a novel broad circularly polarized antenna (CPA) with circular-slot ground is presented. The circular-slot CPA is consisted of a circular-slot ground, an I-shaped slit and a semicircle loop feeding structure.
Lei Wang +5 more
doaj +1 more source