Results 91 to 100 of about 16,742 (248)
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
Strategic Change, EarlyView.ABSTRACT The relationship between team composition and organizational outcomes is a critical topic in many managerial and business contexts. In this study, we utilize an experimental research method to examine the impact of cognitive diversity on team dynamics.
Jantunen Ari +5 more
wiley +1 more source
Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications
Mass Spectrometry Reviews, EarlyView.ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav +3 more
wiley +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
Development of theoretical models of integrated millimeter wave antennas [PDF]
Extensive radiation patterns for Linear Tapered Slot Antenna (LTSA) Single Elements are presented. The directivity of LTSA elements is predicted correctly by taking the cross polarized pattern into account.
Schaubert, Daniel H. +1 more
core +1 more source
Ka-band feed arrays for spacecraft reflector antennas with limited scan capability: An overview [PDF]
, 1992 JPL and NASA are in the process of developing ground and spacecraft antenna systems at Ka-band frequencies for future deep space applications. The use of Ka-band (32-GHz down) communication will result in smaller ground and spacecraft antennas and ...
Jamnejad, V.
core +1 more source
Coaxial Dipole Array With Switching Transmit Sensitivities for Ultrahigh Field MRI
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To investigate dipole antennas with electronically switchable transmit field patterns to improve flip angle homogeneity in ultra‐high field MRI. Methods Reconfigurable dipole elements that could produce two distinct electronically switchable B1+$$ {B}_1^{+} $$ field profiles were conceptualized and constructed. Eight such elements were
Dario Bosch +5 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
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