Results 31 to 40 of about 36,652 (292)

NEW TYPE ELECTRONIC DEVICE - GYROTON ON A CORRUGATED RESONATOR [PDF]

Радиофизика и электроника, 2017
The article describes a new type electronic device - gyroton on a corrugated resonator. In this device there is no spatial grouping of the electron beam, but it is possible to achieve a high conversion factor of the power of the electron beam into the ...
S. V. Kolosov, A. A. Kuraev, I. E. Zaitseva   +2 more
doaj   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

Advanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi   +7 more
wiley   +1 more source

Hong–Ou–Mandel interferometry and quantum metrology with multimode frequency-bin entangled photons

APL Photonics
Quantum entanglement is a vital resource in quantum information processing. High-dimensional quantum entanglement offers advantages that classical systems cannot surpass, particularly in enhancing channel capacity, improving system noise resilience, and ...
Xu Jing, Linjie Fan, Xiaodong Zheng, Tangsheng Chen, Yuechan Kong, Bin Niu, Liangliang Lu   +6 more
doaj   +1 more source

A compact differential branch‐line coupler using folded substrate integrated suspended parallel strip line

Electronics Letters, 2023
This letter presents a compact fully differential branch‐line coupler. It is composed of folded substrate integrated suspended parallel strip line (SISPSL), which can generate slow‐wave effect and help reduce the circuit size.
Huajiao Shen, Yongqiang Wang, Fanyi Meng, Kaixue Ma   +3 more
doaj   +1 more source

Facile Tri‐Metallic Catalyst Fabrication Using the Dynamic Hydrogen Bubble Template method

Advanced Functional Materials, EarlyView.
Porous metal catalysts are prepared using hydrogen bubbles as a natural template. By carefully selecting metal combinations and thermal treatment, the researchers tailored surface composition and structure, boosting catalytic performance. The approach offers a powerful and flexible route to designing advanced materials for green energy Abstract ...
Carlos M. S. Lobo, Bruna F. Gomes, Lu Xia, Wulyu Jiang, Tengyu Chen, Kaiqi Zhao, Laís G. Vernasqui, Hannah Kammal, Eric Liesz, Jonas Prietz, F. Pelayo García de Arquer, Christina Roth   +11 more
wiley   +1 more source

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

Electrochemically Driven Tandem In‐Plane Reduction and FeCl3‐ Intercalation of Highly Crystalline Graphene Oxide Thin Films

Advanced Functional Materials, EarlyView.
This study presents a green processing route for high‐performance reduced graphene oxide (rGO) transparent conductive films (TCFs) using highly crystalline Brodie's GO. In‐plane electrochemical reduction forms rGO on insulating substrates without toxic reductants or heat. Subsequent FeCl₃ intercalation enhances conductivity, overcoming the transparency–
Tatsuki Tsugawa, Kazuto Hatakeyama, Junya Kawasaki, Agamoni Pathak, Kazuhito Tsukagoshi, Shintaro Ida, Takaaki Taniguchi   +6 more
wiley   +1 more source

Effects of [Zn_0.5Si_0.5]³⁺ Substitution on Microwave Dielectric Properties of ZnAl_2-x(Zn_0.5Si_0.5)_xO₄ Ceramics

Crystals
Microwave dielectric ceramics are indispensable in modern communication technologies, playing a pivotal role in components such as filters, oscillators, and antennas.
Xuekai Lan, Bairui Chen, Huatao Tang, Changzhi Yin, Bin Tian, Wen Lei   +5 more
doaj   +1 more source

A review of microwave devices based on CVD-grown graphene with experimental demonstration

EPJ Applied Metamaterials, 2019
As a two-dimension planar material with zero-gap structure, graphene has a lot of outstanding properties in microwave frequency band, and the chemical vapor deposition (CVD) method can produce the large-scale graphene sheets with high quality for ...
Lu Wei-Bing, Chen Hui, Liu Zhen-Guo
doaj   +1 more source

Design of an ultrashort H‐plane coupler without transition structure for sheet beam traveling‐wave tube amplifier at W‐band

Electronics Letters, 2023
An ultrashort H‐plane sheet beam traveling‐wave tube (SB‐TWT) coupler without transition structure is proposed. The coupler adopts a new idea of directly coupling the microwave from H‐plane of the slow‐wave circuit (SWC) and optimizes the matching by ...
Zheng Guo, Changqing Zhang, Jun Cai, Jinjun Feng   +3 more
doaj   +1 more source