Results 61 to 70 of about 41,921 (300)
Near-field direct antenna modulation [PDF]
, 2009 NFDAM systems provide a unique solution for transmitting highly secured direction-dependent data and hence preventing eavesdroppers from properly demodulating the signal.
Babakhani, Aydin +2 more
core +2 more sources
Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
wiley +1 more source
Microwave analogy of Förster resonance energy transfer and effect of finite antenna length
Scientific ReportsThe near-field interaction between quantum emitters, governed by Förster resonance energy transfer (FRET), plays a pivotal role in nanoscale energy transfer mechanisms.
Kseniia Lezhennikova +7 more
doaj +1 more source
Fabrication and Characterization of Flexible Spray-Coated Antennas
IEEE Access, 2018 This paper investigates the potential of using spray coating as a methodology for flexible antenna fabrication. The methodology has advantages compared with other antenna-printing techniques, such as screen-printing and gravure printing (more flexibility
Arno Thielens +4 more
doaj +1 more source
Efficient full-wave modeling of radiative near-field interactions in semi-anechoic conditions [PDF]
, 2015 In this paper, a full-wave method to efficiently compute the electromagnetic interaction between two devices placed in semi-anechoic conditions is proposed.
Rogier, Hendrik +2 more
core +1 more source
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Absorption Efficiency and Physical Bounds on Antennas
International Journal of Antennas and Propagation, 2010 The all spectrum absorption efficiency appears in the physical bounds on antennas expressed in the polarizability dyadics. Here, it is shown that this generalized absorption efficiency is close to 1/2 for small idealized dipole antennas and for antennas ...
Mats Gustafsson +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source
CONSTRICTED PARTICLE SWARM OPTIMIZATION FOR DESIGN OF COLLINEAR ARRAY OF UNEQUAL LENGTH DIPOLE ANTENNAS [PDF]
ICTACT Journal on Soft Computing, 2010 A method based on constricted Particle Swarm Optimization (CPSO) algorithm to design a non-uniformly spaced collinear array of thin dipole antennas of unequal height is proposed.
Banani Basu, G. K. Mahanti
doaj
A Multiband Fractal Dipole Antenna for Wireless Communication Applications [PDF]
Engineering and Technology Journal, 2010 mmunication applications. The proposed fractal antenna design is based onfractal geometry of the second level tent function transformation. Due to theresulting geometrical structures of a fractal tent function curve depend on thestarting angles of the ...
Jawad K. Ali +2 more
doaj +1 more source