R. Sharma, and A. Marwaha
SLIET, Longowal, Sangrur
Curved cone corrugated ground plane conical antenna has been designed and analyzed using Finite Element Method. In this paper, we introduce a novel Curved cone corrugated ground plane conical antenna for ultra-wideband (UWB) applications. The antenna is composed of curved cone with narrow corrugation on finite ground plane and fed by a 50? coaxial cable. The designed antenna operates over ...
P. Alotto, F. Dughiero, F. Bressan, M. Bullo
Università di Padova, Dipartimento di Ingegneria Industriale, Padova, Italy
Computer simulation is mandatory for the optimization of electromagnetic devices. Here we concentrate on two classes of devices operating in the MHz and GHz range, namely microwave ovens and TEM cells for electromagnetic compatibility testing. In particular we concentrate on the issue that numerical results are usually different from the experimental ones and this can be due, among others ...
S. Curet, O. Rouaud, and L. Boillereaux
ENITIAA, GEPEA – UMR, Nantes
This study deals with numerical and experimental investigations of a microwave thawing process. The microwave power generation is calculated from Maxwell’s equations and then from Lambert’s law, using COMSOL Multiphysics. For those two different approaches, the heat source term depends on the dielectric properties of the material. Numerical simulations are compared with experimental ...
A. Haidary, P. Grütter, Y. Miyahara
Physics Department, McGill University, Montreal, QC, Canada
A wide variety of near-field optical phenomena such as apertureless near-field scanning microscopy (ANSM) at optical and terahertz (THz) regimes and surface enhanced Raman scattering relies on the electric field enhancement at the end of a sharp tip. Achieving and controlling this electric field enhancement is a key challenge for a wide range of applications such as surface modification, data ...
M. Mattheakis, C. Athanasopoulos, G. P. Tsironis
University of Crete, Heraklion, Greece
We present numerical simulations for the propagation of surface plasmon polaritons in a dielectric-metal-dielectric waveguide using COMSOL Multiphysics® software. We show that the use of an active dielectric with gain that compensates metal absorption losses enhances substantially plasmon propagation. Furthermore, the introduction of the active material induces, for a specific gain value, a ...
M. Csete, G. Szekeres, B. Banhelyi, A. Szenes, T. Csendes, G. Szabo
Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
Department of Computational Optimization, University of Szeged, Szeged, Hungary
Introduction: Predesigned plasmonic structures are capable of enhancing optical phenomena, the key concept is tailoring the integrated devices' composition to engineer the spectral response and near-field distribution . Our previous studies have shown that three-quarter-wavelength periodic plasmonic structures are capable of improving single-photon detection efficiency [2, 3]. Parametric sweep ...
T. Gál, Ö. Sepsi, P. Koppa
Budapest University of Technology and Economics, Budapest, Hungary
Plasmonic nanoparticles have received increased interest due to their numerous potential applications in the field of optics and optoelectronics. Currently such metallic nanoparticles are applied in semiconductor devices, such as light emitting diodes (LEDs) and solar cells. The optical behaviour of a single plasmonic nanoparticle is can be easily described with several analytic or semianalytic ...
F. Chen, T. Gulati, H. Zhu, A. K. Datta
Cornell University, Ithaca, NY, USA
This research studies the thermal effect of frozen pie heating in the microwave oven. Considering as composite material, the properties of pie derived based on its composition. Here the package, susceptor’s influence to the temperature distribution is also studied.
C. Nadovich[1, 2], W. D. Jemison, J. A. Stoute, C. Spadafora
Lafayette College, Easton, PA, USA
Clarkson University, Potsdam, NY, USA
Pennsylvania State University, Hershey, PA, USA
INDICASAT AIP, Ciudad del Saber, Panama
A computer controlled microwave exposure system and specialized applicators were constructed for the purpose of facilitating accurate observations of microwave radiation effects on uninfected and infected biological tissue in vitro and in vivo under different electromagnetic modalities and exposure configuration. To address diverse requirements, three different applicators were developed: a ...
A Design-of-Experiments Approach to FEM Uncertainty Analysis for Optimizing Magnetic Resonance Imaging RF Coil Design
J. T. Fong, N. A. Heckert, J. J. Filliben, L. Ma, K. F. Stupic, K. E. Keenan, S. E. Russek
National Institute of Standards & Technology, Gaithersburg, MD, USA
National Institute of Standards & Technology, Boulder, CO, USA
The design of a magnetic resonance imaging (MRI) RF coil using finite element method-based analysis is an essential part of a multi-year research project at the National Institute of Standards and Technology, Gaithersburg, Maryland, where the goal of the project is to develop a “phantom” for calibrating MRI machines that is traceable to standardized values. Traceable MRI calibrations are ...