Results 121 to 130 of about 1,959,593 (353)

GPU Accelerated Unconditionally Stable Crank-Nicolson FDTD Method for the Analysis of Three-Dimensional Microwave Circuits

, 2010
The programmable graphics processing unit (GPU) is employed to accelerate the unconditionally stable Crank-Nicolson flnite-difierence time-domain (CN-FDTD) method for the analysis of microwave circuits.
Kan Xu, Z. Fan, D. Ding, Rushan Chen
semanticscholar   +1 more source

Enhancement of the Optoelectric and Photovoltaic Responses of Al/PVP:ZnTiO3/p‐Si Structure by Graphene Nanoparticles

Advanced Photonics Research, EarlyView.
This study investigates the optoelectronic response of Al/p‐Si photodiodes with and without a (PVP:Gr‐ZnTiO3) interlayer under varying light intensities. Key parameters are analyzed, revealing that the interlayer enhances photosensitivity, optical responsivity, and specific detectivity.
Ali Barkhordari, Şemsettin Altındal, Süleyman Özçelik, Hamid Reza Mashayekhi, Mustafa Muradov, Yashar Azizian‐Kalandaragh   +5 more
wiley   +1 more source

Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz

Advanced Photonics Research, EarlyView.
This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley   +1 more source

Spherical and Aspherical Lenses for Boosting the Performance of Terahertz Imaging Systems

Advanced Photonics Research, EarlyView.
This study investigates the enhancement of terahertz (THz) detection through the terajet effect using mesoscale dielectric lenses of various geometries. Spherical, aspherical, and cubic polytetrafluoroethylene lenses are evaluated at 0.15 and 0.3 THz, demonstrating significant improvements in responsivity and noise reduction.
El Hadj Abidi, Jaime Calvo‐Gallego, Alejandro Schulman, Miguel Ferrando‐Bataller, Oleg V. Minin, Igor V. Minin, Jesus E. Velázquez‐Pérez, Yahya Moubarak Meziani   +7 more
wiley   +1 more source

Analysis of Microwave Passive Circuits Designed Using 3D Printing Techniques

Elektronika ir Elektrotechnika, 2019
This work presents the results of a preliminary study conducted to assess the viability of using 3D printing techniques for the manufacturing of microwave passive circuits based on microstrip techniques, both for prototyping new low-cost devices and for ...
Hector Garcia-Martinez, Ernesto Avila-Navarro, Alberto Rodriguez-Martinez, Miguel Angel de la Casa-Lillo, German Torregrosa-Penalva   +4 more
doaj   +1 more source

Nonlinearities in Microwave Superconductivity [PDF]

arXiv, 2012
The research is focused on the modeling of nonlinear properties of High Temperature Superconducting (HTS) thin films, using Bardeen, Cooper, Schrieffer and Lumped Element Circuit theories, with purpose to enhance microwave power handling capabilities of microwave filters and optimize design of microwave circuits in micro- and nano- electronics.
arxiv  

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

Advanced Photonics Research, EarlyView.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang, Chengwei Fang, Md Osman Ali, Xiaojun Chen, Safa Alghadi, Shuo Li, Jiayuan He, Sithamparanathan Kandeepan   +7 more
wiley   +1 more source

Coexistence of multiuser entanglement distribution and classical light in optical fiber network with a semiconductor chip

Chip
Building 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, Cheng Qian, Xiaodong Zheng, Hu Nian, Chenquan Wang, Jie Tang, Xiaowen Gu, Yuechan Kong, Tangsheng Chen, Yichen Liu, Chong Sheng, Dong Jiang, Bin Niu, Liangliang Lu   +13 more
doaj  

Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends

International Journal of Antennas and Propagation, 2017
Slots or defects integrated on the ground plane of microwave planar circuits are referred to as Defected Ground Structure. DGS is adopted as an emerging technique for improving the various parameters of microwave circuits, that is, narrow bandwidth ...
Mukesh Kumar Khandelwal, Binod Kumar Kanaujia, Sachin Kumar   +2 more
doaj   +1 more source

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

Advanced Photonics Research, EarlyView.
A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma, Dapeng Wu, Ruixin Huang, Shichen Zhang, Binru Zhou, Zejun Ma, Yongqiang Sun, Junqi Liu, Ning Zhuo, Jinchuan Zhang, Shenqiang Zhai, Shuman Liu, Fengqi Liu, Manijeh Razeghi, Quanyong Lu   +14 more
wiley   +1 more source