Determining loss tangent values of dry granite for potential S‐band applications
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32494
Abstract: Examination of the historical buildings and the modern buildings for varying applications and specific absorption rate (SAR) reduction for certain applications from security to health concerns find significant attention in both engineering and science. Applications… read more here.
Keywords: determining loss; values dry; loss tangent; tangent values ... See more keywords
Graphene/polypyrrole nanocomposites with high negative permittivity and low dielectric loss tangent
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2018.11.241
Abstract: Abstract Graphene (GNs)/ polypyrrole (PPy) nanocomposites with different content of GNs prepared by in-situ polymerization possess negative permittivity in the range of test frequency. Importantly, the GNs/PPy nanocomposites also have low dielectric loss tangent. ATR… read more here.
Keywords: negative permittivity; ppy nanocomposites; loss tangent; dielectric loss ... See more keywords
Ge4+ doped CaCu2.95Zn0.05Ti4O12 ceramics: Two-step reduction of loss tangent
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.03.019
Abstract: ABSTRACT CaCu3Ti4O12 ceramics have been extensively studied for their potential applications as capacitors in recent years; however, these materials exhibit very large dielectric losses. A novel approach to reducing the dielectric loss tangent in two… read more here.
Keywords: dielectric permittivity; loss; loss tangent; ge4 doped ... See more keywords
Analysis of Chang'E-2 brightness temperature data and production of high spatial resolution microwave maps of the Moon
Sign Up to like & getrecommendations! Published in 2019 at "Icarus"
DOI: 10.1016/j.icarus.2018.09.036
Abstract: Abstract The microwave radiation passively emitted from the Moon is valuable for investigating the physical properties of the lunar regolith. Microwave maps, which can reveal subsurface characteristics at depths of centimeters to meters, give clues… read more here.
Keywords: temperature data; microwave maps; loss tangent; brightness temperature ... See more keywords
Balanced development of dielectric permittivity, loss tangent, and temperature stability in K0.5Na0.5NbO3-based ceramic capacitors
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.152798
Abstract: Abstract Ceramic capacitors are extremely expected to attain the high dielectric permittivity (e′) and low loss tangent (tanδ) stabilized in an ultra-wide operating temperature range. In this work, we improved e′, tanδ and their temperature… read more here.
Keywords: ceramic capacitors; loss tangent; temperature; dielectric permittivity ... See more keywords
Low loss polypropylene-silicon composites for millimetre wave applications
Sign Up to like & getrecommendations! Published in 2018 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2018.03.047
Abstract: Abstract Polypropylene-silicon composite laminates were fabricated via hot pressing and their dielectric properties up to 35 GHz were studied. The loss tangent was found to decrease with increasing frequency whereas an increasing trend of loss tangent… read more here.
Keywords: silicon; loss tangent; polypropylene silicon; loss ... See more keywords
Enhanced dielectric properties with a significantly reduced loss tangent in (Mg2+, Al3+) co-doped CaCu3Ti4O12 ceramics: DFT and experimental investigations
Sign Up to like & getrecommendations! Published in 2021 at "RSC Advances"
DOI: 10.1039/d1ra02896k
Abstract: Mg and Al atoms preferentially occupy Cu sites, creating liquid-phase sintering decomposition at grain boundary layers. This results in very high dielectric permittivity and a low loss tangent of the CaCu2.95Mg0.05Ti3.95Al0.05O12 ceramic. read more here.
Keywords: loss tangent; dielectric properties; enhanced dielectric; properties significantly ... See more keywords
New methodology to determine the loss tangent of dielectric planar samples by using electrically coupled resonators
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electromagnetic Waves and Applications"
DOI: 10.1080/09205071.2020.1816502
Abstract: A new methodology to determine the loss tangent of dielectric planar samples by using electrically coupled resonators is presented. The coupling between the resonators is disrupted by the sample under test (SUT). The proposed methodology… read more here.
Keywords: loss tangent; methodology; planar samples;
Loss Tangent Estimation From GPR Data in Complex Medium Scenarios Using Amplitude and Power Spectrum Centroid Frequency Shift Methods
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2023.3272795
Abstract: Electromagnetic (EM) losses estimation in complex scenarios lacking subsurface continuous reflectors is challenging. We present here a robust approach based on the centroid frequency shift method and Ricker wavelet as the input signal, to compute… read more here.
Keywords: frequency shift; centroid frequency; gpr data; loss tangent ... See more keywords
Electric Properties Measurement of Lentil
Sign Up to like & getrecommendations! Published in 2018 at "Acta Technologica Agriculturae"
DOI: 10.2478/ata-2018-0004
Abstract: Abstract This paper contains the results of the electric properties measurement of lentil set. Electric measurements with use of these materials are of fundamental importance in relation to the analysis of quantity of absorbed water… read more here.
Keywords: measurement lentil; loss tangent; properties measurement; electric properties ... See more keywords