Results 21 to 30 of about 7,653 (264)
IEEE Access, 2021 A new concept of broadband equal-split coupled-line directional couplers is proposed. The proposed couplers are based on coupled-line sections, all having the same coupling coefficient, and feature frequency characteristics similar to the ones obtained ...
Kinga Gawel +5 more
doaj +1 more source
Heterogeneously integrated flexible microwave amplifiers on a cellulose nanofibril substrate
Nature Communications, 2020 Though flexible microwave integrated circuits (MICs) are desirable for the construction of functional microwave amplifier circuits, realizing low cost III-V-based MMICs remains a challenge.
Huilong Zhang +15 more
doaj +1 more source
Cavity electromechanics with parametric mechanical driving
Nature Communications, 2020 Microwave circuits are interesting tools for microwave optomechanics and quantum information processing. Here, the authors demonstrate a phase-sensitive microwave amplifier by using parametric frequency modulation of a MHz mechanical nanobeam integrated ...
D. Bothner +5 more
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A single‐layered balanced filtering crossover with high selectivity based on square patch resonator
IET Microwaves, Antennas & Propagation, 2023 A new design of single‐layered balanced filtering crossover with high selectivity based on square patch resonator is proposed. Originated from the degenerate modes, that is, TM12 and TM21 on square patch resonators, the feasibility of intrinsic common ...
Yi Li, Jianpeng Wang, Lei Zhu, Wen Wu
doaj +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Advanced Functional Materials, EarlyView.Molecular engineering of a nonconjugated radical polymer enables a significant enhancement of the glass transition temperature. The amorphous nature and tunability of the polymer, arising from its nonconjugated backbone, facilitates the fabrication of organic memristive devices with an exceptionally high yield (>95%), as well as substantial ...
Daeun Kim +14 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
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
ChipBuilding communication links among multiple users in a scalable and robust way is a key objective in achieving large-scale quantum networks. In a realistic scenario, noise from the coexisting classical light is inevitable and can ultimately disrupt the ...
Xu Jing +13 more
doaj +1 more source
International Journal of Telemedicine and Applications, 2008 A new system-on-a-chip radar sensor for next-generation wearable wireless interface applied to the human health care and safeguard is presented. The system overview is provided and the feasibility study of the radar sensor is presented.
Domenico Zito +5 more
doaj +1 more source