Results 31 to 40 of about 3,456 (311)
IEEE Access, 2020 This paper presents a few single-substrate multi-metal layer antennas using additively manufactured electronics (AME) solution based on piezoelectric additive fabrication. By vertically stacking metal layers in a 3D printed single substrate, the designed
Mengze Li +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin +16 more
wiley +1 more source
Ultra-Wideband Antennas for Wireless Communication Applications
International Journal of Antennas and Propagation, 2019 A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented.
Tale Saeidi +4 more
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Egyptian Informatics Journal, 2017 In this present work, a different right angled isosceles triangular Microstrip patch antenna (RITMA) for ultra wideband (UWB) utilization is designed. The antenna presented is simple and small in structure.
Manisha Gupta, Vinita Mathur
doaj +1 more source
Advanced Functional Materials, EarlyView.Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber +12 more
wiley +1 more source
A Design of Low Profile Microstrip Patch Antenna With Bandwidth Enhancement
IEEE Access, 2020 It is known that for a microstrip antenna (patch antenna) resonant in a single mode, if the height of the antenna is strictly limited, the bandwidth is narrow, and the performance at the side frequencies is worse than that at the centre frequency.
Chao Sun
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IEEE Access, 2021 Complementary sources concept and half-mode/quarter-mode substrate integrated waveguide (HMSIW/QMSIW) technology are introduced in this paper to improve the back-radiation suppression and bandwidth of microstrip patch antennas (MPAs). The HMSIW cavity as
Liping Yuan +4 more
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Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN
Advanced Functional Materials, EarlyView.Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk +6 more
wiley +1 more source
Super-wideband monopolar patch antenna
Electronics Letters, 2008 A monopolar patch antenna for wideband operation is presented. It has super-wide impedance bandwidth from 0.77 GHz to more than 20 GHz for SWR
K.L. Lau, K.C. Kong, K.M. Luk
openaire +1 more source
Large Transverse Thermoelectric Effect in Weyl Semimetal TaIrTe4 Engineered for Photodetection
Advanced Functional Materials, EarlyView.This experimental work shows that the anomalous scanning photocurrent response patterns of the Weyl semimetal TaIrTe4${\rm TaIrTe}_4$ under visible and long‐wave infrared illumination are due to a large transverse thermoelectric response of the material.
Morgan G. Blevins +6 more
wiley +1 more source