Results 31 to 40 of about 12,388 (315)

Nonreciprocity in Microwave Optomechanical Circuits [PDF]

open access: yesIEEE Antennas and Wireless Propagation Letters, 2018
7 pages, 3 figures; submitted as a contribution to a special issue titled "Magnet-less Nonreciprocity in Electromagnetics" to appear in IEEE Antennas and Wireless Propagation ...
Nathan Rafael Bernier   +3 more
openaire   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Modern quantum materials

open access: yesFrontiers in Materials
Quantum phenomena, including entanglement, superposition, tunneling, and spin–orbit interactions, among others, are foundational to the development of recent innovations in quantum computing, teleportation, encryption, sensing, and new modalities of ...
Vincent G. Harris   +2 more
doaj   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced 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

Circularly-polarized 28-GHz antenna for next generations of communication systems

open access: yesScientific Reports
A circularly-polarized (CP) printed antenna is proposed for millimeter-wave mobile communications. The antenna has a defected ground structure (DGS), and it operates at 28 GHz.
Rania R. Elsharkawy   +2 more
doaj   +1 more source

Híbrido rat-race miniaturizado para la banda ISM 2,4 GHZ

open access: yesTecnura, 2014
This paper presents the design, implementation and evaluation of a miniaturized Rat-race hybrid implemented in substrate CER-60 with microstrip transmission lines in a novel space-filling curve.
Sebastián Rodríguez Páez   +2 more
doaj   +1 more source

Compact high‐efficiency c‐band rectifier with high input power for microwave power transmission

open access: yesElectronics Letters, 2023
This letter presents a novel C‐band rectifier that is capable of handling high input power. The rectifier consists of a Schottky diode, an impedance matching circuit with a compensation microstrip structure, and an output filter with harmonic suppression
Hongzheng Zeng, Yuzhu Tang, Yunpeng Liu
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

Breakthroughs in Photonics 2012: Breakthroughs in Microwave Quantum Photonics in Superconducting Circuits

open access: yesIEEE Photonics Journal, 2013
The latest breakthroughs in microwave quantum photonics in superconducting circuits are presented. Advancing technologies of Josephson junction quantum bits (qubits) have been applied to control and measurement of itinerant microwave fields.
Y. Nakamura, T. Yamamoto
doaj   +1 more source

Circularly-Polarized Patch Antennas With Enhanced Bandwidth Based on Capacitively Coupled Orthogonal Patch Radiators

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Circularly-polarized (CP) patch antennas with enhanced bandwidth based on capacitively coupled orthogonal patch radiators are proposed. Several patch radiators are alternately arranged one by one along the ${x}$ - and ${y}$ -direction, producing ...
Qiong-Sen Wu   +5 more
doaj   +1 more source

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