Results 81 to 90 of about 2,139,092 (303)
, 2012 Planar metamaterials and many microwave circuits and antennas are designed by means of resonators with dimensions much smaller than the wavelength at their resonance frequency.
M. Durán-Sindreu +4 more
semanticscholar +1 more source
Advanced Materials, EarlyView.A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu +7 more
wiley +1 more source
IEEE AccessThis paper presents a highly sensitive monolithic direct detection receiver with dot-cathode PIN photodiode, integrate-and-dump front-end, and correlated double sampling (CDS) equalization.
Christoph Gasser +2 more
doaj +1 more source
Diketopyrrolopyrrole‐Based Cation as a Semiconducting Spacer in Layered Perovskite
Advanced Materials, EarlyView.Diketopyrrolopyrrole cation incorporated layered perovskites exhibiting extended absorption profiles and enhanced charge carrier mobility with type‐II energy alignment. The improved photoconversion efficiency demonstrates the critical role of incorporating organic semiconductors in optimizing layered perovskite performance.
Waygen Thor +8 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee +2 more
wiley +1 more source
Microelectronics Reliability, 1973 マイクロ波ICは, マイクロ波機器の小形・軽量化, 高信頼度化, 経済化を目的に開発されたもので, この数年間に著しい発展をとげた.製造技術の面にはまだ問題が残されているものの, 今後マイクロ波ICの適用により新たな需要が開かれ, 各分野での広い利用が期待されている.本文はマイクロ波ICを分布定数型と集中定数型に大別し, 基本的な構成素子の設計法, 高周波限界, 特徴などを中心に解説したものである.
openaire +3 more sources
SensorsIt is shown that the integration of a single-photon avalanche diode (SPAD) together with a BiCMOS gating circuit on one chip reduces the parasitic capacitance a lot and therefore reduces the avalanche build-up time. The capacitance of two bondpads, which
Bernhard Goll +3 more
doaj +1 more source
Frontiers in Physiology, 2018 Analysis of heart rate variability (HRV) can be applied to assess the autonomic nervous system (ANS) sympathetic and parasympathetic activity. Since living systems are non-linear, evaluation of ANS activity is difficult by means of linear methods.
Ryszard S. Gomolka +5 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma +5 more
wiley +1 more source
Design of Dual-Mode Local Oscillators Using CMOS Technology for Motion Detection Sensors
Sensors, 2018 Recently, studies have been actively carried out to implement motion detecting sensors by applying radar techniques. Doppler radar or frequency-modulated continuous wave (FMCW) radar are mainly used, but each type has drawbacks.
Keum-Won Ha +3 more
doaj +1 more source