Consultez les proceedings de la Conference COMSOL 2020
Safety and Effectiveness Evaluation of Medical Therapeutic and Diagnostic Devices Using EM Fields
Currently, there are a number of promising applications of electromagnetic fields in medical diagnosis and therapy. Some, such as non-invasive monitoring of blood glucose concentration in patients with diabetes or temperature monitoring during hyperthermia, are in the phase of ... En savoir plus
Design and Simulation of an Additive Manufactured Microwave Cavity for Compact Cold Atom Clocks
We present the design and performance simulations for a microwave cavity for use in novel compact cold atom atomic clocks. Design goals for such a microwave cavity are a resonance frequency at the Rubidium ground-state transition frequency of 6.835 GHz, combined with a moderate quality ... En savoir plus
Full-Wave Validation of Broadside Radiating MTS Antennas Designed with a Current-Based Approach
Metasurface (MTS) antennas are based on the use of special types of scattering surfaces patterned at a sub-wavelength scale with electrically small metallic dielectric inclusions, usually called unit cells [O. Quevedo-Teruel et al., Journal of Optics, vol. 21, 2019]. The radiation ... En savoir plus
Quantum–Electromagnetic Coupling in Time Domain Simulations Using COMSOL Multiphysics®
INTRODUCTION The coupling of the Schrödinger and Maxwell equations allows to predict the self-generated electromagnetic (EM) field for a quantum charged particle moving in a domain. Such problem is really challenging, and it must be investigated in order to simulate the behavior of a ... En savoir plus
Wavelength Bit-rate Tunable Silicon – Organic hybrid Modulator using commercially Available HLD
On-chip photonic modulators designs currently use NLO material stacks such as LiNbO3 or BaTiO3 on Si or use current injection across silicon waveguides to induce phase change required for optical modulation(Li 2020)(Li 2019). The other silicon compatible option explored is silicon ... En savoir plus
Analysis of cancer cell behaviour using sub-THz excitation in COMSOL Multiphysics
In this paper, analysis of cancer cell using Sub-THz technology have been studied. Sub-THz technique for cancer detection is a much reliable and safer technique as compared to conventional methods [1,2]. To study the behavior of cancer cells and normal cells using Sub-THz technology, a ... En savoir plus
Design and Optimization of Periodic Structures for Electromagnetic Wave Manipulation
This research presents the design, simulation, and characterization of novel resonator structures based on the principles of coupling electric fields using periodic metamaterial-inspired configurations using COMSOL Multiphysics RF module. The resonators are meticulously crafted to ... En savoir plus
Design of 0.2 THz Staggered Double Vane Beam-Wave Interaction Structure using COMSOL Multiphysics
THz is an emerging technology which can be strongly utilized in the field of spectroscopy, communication, biomedical, non-destructive evaluation (NDE), food industry and many more fields [1-2]. It covers the frequency range from 0.1-10 THz [2]. At THz regime, to achieve the high output ... En savoir plus
Nonlinear Analysis of Beam-Wave Interaction for High Power THz TWT with Sheet Electron Beam
High-power THz TWTs of frequencies between 0.1THz to 0.3THz are being investigated for their use as amplifiers in ultra-broadband wireless communication systems, because of their high gain, high efficiency, wide bandwidth and high linearity. They have many other new emerging applications ... En savoir plus
Numerical Electromagnetic Cloak for arbitrary 3D shapes using Laplace’s Equation
The concept of invisibility in general has been imagined in science-fiction in fascinating ways such as invisible aircrafts, invisible cars, cape of invisibility etc. which has inspired a lot of interest in the field. The first crude attempt at achieving invisibility was inspired from ... En savoir plus