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查看 COMSOL 用户年会 2020 论文

RF and Microwave Engineeringx

Electromagnetic Modeling of Field Emitter Cathodes Inside an L-Band RF Gun at Fermilab Using COMSOL®

H. Panuganti [1,2,3], P. Piot [1,3],
[1] Northern Illinois Center for Accelerator and Detector Development (NICADD), Northern Illinois University, DeKalb, IL USA
[2] Department of Mechanical Engineering, Northern Illinois University, DeKalb, IL, USA
[3] Fermi National Accelerator Laboratory (FNAL), Batavia, IL, USA

Field-emitter (FE) electron sources offer significant advantages over photocathode and thermionic sources due ... 扩展阅读

Remote Monitoring of Structures in Composite Materials via Embedded Thermo-Chemical Sensors

B. Golchinfar [1], M. Rutner [1], D. Donskoy [1],
[1] Stevens Institute of Technology, Hoboken, NJ, USA

Composite systems are becoming more and more widespread across industries and the capability to finding and ... 扩展阅读

MRI Birdcage RF Coil Resonance with Uncertainty and Relative Error Convergence Rates

J. T. Fong [1],
[1] National Institute of Standards and Technology, Gaithersburg, MD, USA

In a magnetic resonance imaging (MRI) system, it is necessary to excite the nuclei of a patient into coherent ... 扩展阅读

The Nonlocal Optical Response of Gold Nanowire

Changyin Ji [1], Qingfan Shi [1], Yongyou Zhang [1], Ning Zheng [1], Liangsheng Li [2],
[1] Beijing Institute of Technology, School of Physics, Beijing, China
[2] Science and Technology on Electromagnetic Scattering Laboratory, Beijing, China

Recently, the researchers usually use the hydrodynamic Drude model (HDM)to investigate the nonlocal optical ... 扩展阅读

The Metal Patch Effect on the Microwave Heating Uniformity

Huacheng Zhu [1], Qian Meng [2], Quansheng Wang [2], Youqi Deng [2],
[1] Institute of Applied Electromagnetics, Sichuan University, Chengdu, China
[2] College of Physical Science and Technology, Sichuan University, Chengdu, China

Microwave heating is known for its efficiency and instantaneity. However, the non-uniformity of the microwave ... 扩展阅读

Metamaterial Based Patch Antenna with Broad Bandwidth Designed by COMSOL Multiphysics® Software

李学识 [1], 郑李娟 [1],
[1] 广东工业大学,广州,中国

A patch antenna based on metamaterials of composite split-ring-resonators (CSRRs) and strip gaps is designed ... 扩展阅读

Liquid Crystal Based Terahertz Metamaterial Absorbers

Wang Lei [1],
[1] Nanjing University of Posts and Telecommunications, Nanjing, China

Metamaterial-based absorbers play a significant role in applications ranging from energy harvesting and ... 扩展阅读

A Reliable Approach to Estimate Surface-enhanced Raman Scattering Intensity of Metal Nanostructures

En-Ming You [1], Jun Yi [1], Song-Yuan Ding [1,2],
[1] State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
[2] Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, China

Surface-enhanced Raman scattering (SERS) is a fingerprint spectroscopy whose sensitivity is down to single ... 扩展阅读

Enhanced Spontaneous Emission in Plasmonic Nanostructures

Jun Yi [1], Song-Yuan Ding [2],
[1] State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
[2] Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, China

Spontaneous emission -- an electron in an excited state of an emitter spontaneously decays to another state ... 扩展阅读

Radio Frequency (RF) Thawing Irregular Shape Frozen Beef — A Computational Study

Yang Jiao [1], Yulin Li [1], Yifen Wang [1]
[1] Shanghai Ocean University, Engineering Research Center of Food Thermal-processing Technology, Shanghai, China

Imported beef often comes in halves or quarters of frozen bodies, which are irregular. Radio frequency (RF) ... 扩展阅读