Results 41 to 50 of about 59,565 (296)
A Super-Wideband Miniaturized Graphene-Dielectric Folded Monopole Antenna
Advanced ElectromagneticsA graphene-dielectric folded monopole antenna with super-wideband bandwidth and a small volume is proposed in this paper. The antenna features a disc-loaded folded cylindrical configuration that mainly consists of graphene-powder and graphene-ink ...
L. Guo
doaj +1 more source
Scientific ReportsCombining the benefits of a low profile, high gain, high efficiency, and wideband operation in a planar antenna presents a significant challenge for antenna designers. Low-profile wideband antennas often suffer from low gain.
A. E. Farahat +2 more
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Highly efficient impulse-radio ultra-wideband cavity-backed slot antenna in stacked air-filled substrate integrated waveguide technology [PDF]
, 2018 An impulse-radio ultra-wideband (IR-UWB) cavity-backed slot antenna covering the [5.9803; 6.9989] GHz frequency band of the IEEE 802.15.4a-2011 standard is designed and implemented in an air-filled substrate integrated waveguide (AFSIW) technology for ...
Lemey, Sam +3 more
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Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source
Limiting Performance of Conventional and Widely Linear DFT-precoded-OFDM Receivers in Wideband Frequency Selective Channels [PDF]
, 2013 This paper describes the limiting behavior of linear and decision feedback equalizers (DFEs) in single/multiple antenna systems employing real/complex-valued modulation alphabets.
Kuchi, Kiran
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Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source
IET Microwaves, Antennas & Propagation, 2023 In this study, we developed and investigated a small‐diameter, low‐profile, wideband orthogonal‐polarisation multiple‐input multiple‐output (MIMO) antenna.
Tomokazu Mizutani +4 more
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Conjoined Yet Decoupled Wideband Multiantenna MIMO Linear Patch Array
IEEE Access, 2022 A conjoined yet decoupled wideband multi-antenna MIMO linear patch array (LPA) based on using a wideband patch antenna with dual slanted (±45°) shorting metal walls as a building antenna unit (BAU) is presented.
Kin-Lu Wong, Guan-Lin Yan, Wei-Yu Li
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Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
wiley +1 more source
A 300-800MHz Tunable Filter and Linearized LNA applied in a Low-Noise Harmonic-Rejection RF-Sampling Receiver [PDF]
, 2010 A multiband flexible RF-sampling receiver aimed at software-defined radio is presented. The wideband RF sampling function is enabled by a recently proposed discrete-time mixing downconverter. This work exploits a voltage-sensing LNA preceded by a tunable
Klumperink, Eric A.M. +3 more
core +3 more sources