Results 81 to 90 of about 79,732 (357)
Accuracy Improvement of Real-Time Load-Pull Measurements [PDF]
, 2007 This paper describes a new procedure aimed to improve the effectiveness of real-time load-pull calibration. Loadpull measurement accuracy is strongly affected by calibration residual uncertainty.
D. PARENA +4 more
core +1 more source
Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Research on dual-polarisation printed dipole antenna for spherical near-field measurements
The Journal of Engineering, 2019 Here a dual-polarisation printed dipole antenna for spherical near-field measurements is proposed. The printed dipole employs double-layered structure to obtain low cross-polarisation and uses irregular patch to get wide bandwidth.
Pei Zheng +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura +2 more
wiley +1 more source
MICROWAVE CONTACTLESS MEASUREMENT METHOD OF SUBSTANCES LEVEL
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 The analysis and comparison of existing contactless methods of substance level measurement is carried out. Advantages and lacks of optical, ultrasonic and microwave measurement methods are considered in details.
V. V. Kazlyak +2 more
doaj
Material Characterization Innovations in Microwave Measurement Laboratory of Amirkabir University of Technology [PDF]
International Journal of Information and Communication Technology Research, 2023 This paper presents some microwave circuits, designed for characterization of materials’ permittivity. These include single and multiple-resonant types, transmission line approaches, radiation structures and planar circuits.
Gholamreza Moradi
doaj
Absolute power measurement at microwave frequencies [PDF]
Proceedings of the IEE - Part IV: Institution Monographs, 1949 Nichols and Hull1 have verified the Maxwell—Bartoli theory of radiation pressure experimentally to within 1–2 per cent by a torsion balance method, with a light beam carrying a power of about 0·1 watt.
openaire +2 more sources
An investigation of minerals using microwave measurement of complex permittivity
, 1990 Includes bibliography.Microwave measurement techniques have found many industrial and commercial applications. This measurement potential of microwaves, together with observations that different minerals show different microwave heating characteristics ...
Pendock, Graeme
core
Interface Effects in Ultrathin Silicon on Insulator Films
Advanced Functional Materials, EarlyView.This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici +8 more
wiley +1 more source
Measurement of Evaporation Rates of Different Kind of Aqueous Solutions Under Microwave Irradiation
, 2012 13th International Conference on Microwave and RF Heating of the Association-for-Microwave-Power-in-Europe-for-Research-and-Education (AMPERE) -- SEP 05-08, 2011 -- Toulouse, FRANCEThe evaporation rate of water is, of course, different under the same ...
Sarican, Gozde +4 more
core +2 more sources