Results 91 to 100 of about 31,808 (349)
A Continuous Beam Steering Slotted Waveguide Antenna Using Rotating Dielectric Slabs
, 2018 The design, simulation and measurement of a beam steerable slotted waveguide antenna operating in X band are presented. The proposed beam steerable antenna consists of a standard rectangular waveguide (RWG) section with longitudinal slots in the broad ...
Ghasemi, Amirhossein +1 more
core +1 more source
Evaluation of coaxial dipole antennas as transceiver elements of human head array for ultra‐high field MRI at 9.4T [PDF]
, 2023 Georgiy Solomakha +4 more
openalex +1 more source
Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics
Advanced Robotics Research, EarlyView.Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod +14 more
wiley +1 more source
A Deployable Conical Log Spiral Antenna for Small Spacecraft: Electronic Design and Test
AerospaceAn ultra-high-frequency (UHF) deployable conical log spiral antenna’s design and experimental test results are presented. The antenna is a spring constructed from a carbon-fiber-infused epoxy matrix. The spring design simplified the spacecraft deployment
Lewis R. Williams +5 more
doaj +1 more source
Bandwidth Enhancement of a Backfire Microstrip Patch Antenna for Pervasive Communication
International Journal of Antennas and Propagation, 2014 Backfire antenna 0.265λ for bandwidth enhancement is proposed and investigated. The proposed antenna is fed by a 50 Ω coaxial feed. The bandwidth of proposed antenna for S and C band is investigated. The performance of backfire antenna is investigated by
Puran Gour, Ravishankar Mishra
doaj +1 more source
Improved modified turnstile antenna [PDF]
, 1970 Improved antenna design embodies the principles of turnstiling, broadbanding, and delta dipole matching.
Lemson, P. H.
core +1 more source
Circularly polarized U-Slot antenna [PDF]
, 2007 Circularly polarized single-layer U-slot microstrip patch antenna has been proposed. The suggested asymmetrical U-slot can generate the two orthogonal modes for circular polarization without chamfering any corner of the probe-fed square patch microstrip ...
Tong, KF, Wong, TP
core +1 more source
Advanced Science, EarlyView.This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong +7 more
wiley +1 more source
A novel millimetre‐wave 2D wide‐angle scanning phased array antenna based on decoupling surface
IET Microwaves, Antennas & PropagationThis paper presents a novel millimetre‐wave (mmWave) 2D wide‐angle scanning (WAS) phased array antenna (PAA) based on decoupling surface (DS). The proposed element is a coaxial feeding stacked patch antenna structure that consists of an L‐shape coaxial ...
Bao Xiong +4 more
doaj +1 more source
Reflectometer for receiver input impedance match measurement Patent [PDF]
, 1970 Reflectometer for receiver input impedance match ...
Stelzried, C. T.
core +1 more source