Results 21 to 30 of about 8,348 (266)

Multi-layer transmission line of spoof surface plasmon polaritons

EPJ Applied Metamaterials, 2022
In modern microwave technology, multi-layer structure is widely adopted in compact circuit design. In a multi-layer microwave system, the transmission line (TL) plays an important role.
Lu Yuxi, Tang Wenxuan, Cui Tie Jun
doaj   +1 more source

Vertically‐integrated differential filtering patch antenna excited by a balun bandpass filter

IET Microwaves, Antennas & Propagation, 2019
This study develops a differential‐fed filtering patch antenna, which features superior frequency selectivity, compact size, low cross‐polarisation, and symmetrical radiation patterns. The proposed antenna consists of a rectangular patch on the top layer,
Huayan Jin, Guo Qing Luo, Wenquan Che, Kuo‐Sheng Chin, Yujian Pan, Yufeng Yu   +5 more
doaj   +1 more source

Broadband Equal-Split Directional Couplers Composed of Cascade- and Tandem-Connected Coupled-Line Sections Having Unequal Lengths

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, Magda Kalawska, Kamil Staszek, Robert Smolarz, Slawomir Gruszczynski, Krzysztof Wincza   +5 more
doaj   +1 more source

An optimization design scheme applied to multi-modules cascading of transceiver IC

Dianzi Jishu Yingyong
In this paper, a novel optimization design scheme is proposed to solve the cascading mismatch problem of sub-circuits in beamforming chips due to parasitic effects.
Yu Qiushi, Guo Runnan, Chen Hao, Zhuang Yuan, Liang Yun, Yan Yujun, Wu Xia, Ge Fengchun, Wang Weibo, Tao Hongqi   +9 more
doaj   +1 more source

3D Printed Alumina for Low-Loss Millimeter Wave Components

IEEE Access, 2019
This paper compares the performance of three different materials and processing techniques suitable for low-loss mm-Wave components. The comparison is made by fabricating the same 2D photonic crystal structure in the W-band. Rogers RT/duroid® 6010.
Alejandro Jimenez-Saez, Martin Schubler, Christopher Krause, Damian Pandel, Kamil Rezer, Gerd Vom Bogel, Niels Benson, Rolf Jakoby   +7 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, Jinghao Li, Dong Liu, Seunghwan Min, Tzu-Hsuan Chang, Kanglin Xiong, Sung Hyun Park, Jisoo Kim, Yei Hwan Jung, Jeongpil Park, Juhwan Lee, Jung Han, Linda Katehi, Zhiyong Cai, Shaoqin Gong, Zhenqiang Ma   +15 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Toward brain-inspired intelligence: a review of photonic neuromorphic computing systems

PhotoniX
Inspired by the key elements and principles in the brain, photonic neuromorphic computing shows great potential for building next-generation intelligent processing systems with high parallelism, low latency, low power consumption, and self-learning ...
Dun Lan, Bowen Ma, Yuxiang Ji, Yichen Zeng, Zhihong Zou, Zongsheng Li, Yiyang Xu, Mengmeng Chai, Weiwen Zou   +8 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, S. Yanai, A. Iniguez-Rabago, M. Yuan, Ya. M. Blanter, G. A. Steele   +5 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source