J.E. Rayas-Sánchez, J. Aguilar-Torrentera, Z. Brito-Brito, J.C. Cervantes-González, C.A. López
Universidad Jesuita de Guadalajara, Tlaquepaque, Jalisco, Mexico
Intel Guadalajara Design Center, Tlaquepaque, Jalisco, Mexico
We perform EM simulations of a low-pass microstrip filter consisting of a cross-junction open stub and two unit sections implemented as defected ground structures (DGS). The defect introduced by unit sections corresponds to an etched lattice on the copper backside ground plane. The filter presents wide and deep attenuation characteristics in the stopband. Different model implementations were ...
B. Lepers, S. Soldatov
Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology, Karlsruhe, Germany
The use of high power microwave energy for ablation of contaminated concrete is a promising technique to speed up the dismantling of nuclear power plants. A coupled simulation using COMSOL Multiphysics® finite element software is performed by solving the electromagnetic wave equation at 2.45 GHz for a standard wave guide and a concrete block. The temperature field is obtained with the heat ...
B. R. Sangala, H. Surdi, P. Deshmukh, A. V. Gopal, S. S. Prabhu, G. Rana
Tata Institute of Fundamental Research, Mumbai, Maharashtra, India
Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
Terahertz radiation (THz) is defined to have frequencies from 0.1-10 THz (1 THz=1e12 Hz). This radiation lies between microwave and infrared radiations in the electromagnetic spectrum. Metamaterials are designed periodic materials that show exotic properties to light and sound. Metamaterials are good candidates for manipulating THz because natural materials have a weak response to it. Several ...
Theoretical Study of Phase and Amplitude Characteristics of Microwave Coplanar Delay Line Containing Thin Ferroelectric Layer
V. Nikolaevtsev, S. Yankin, S. Suchkov, D. Suchkov, A. Litvinenko
Saratov State University, Saratov, Russian Federation
Joint International Laboratory LICS/LEMAC, IEMN UMR CNRS 8520, EC Lille, France
We theoretically studied the microwave coplanar line of different geometry based on MgO substrate with a thin (30 nm) ferroelectric layer under the external electric field using the environment of 3D modeling in COMSOL Multiphysics®, RF Module, Frequency Domain. Frequency dependence of delay line coefficient S21 was obtained. Sizes of the microstrip and the gap between the strip and the ground ...
R. Gaffoglio , A. Cagliero , A. De Vita , B. Sacco ,
 Department of Physics, University of Torino, Torino, Italy
 Centre for Research and Technological Innovation, RAI Radiotelevisione Italiana, Torino, Italy
The possibility of exploiting the Orbital Angular Momentum (OAM) of light as a means to simultaneously transmit radio signals at the same frequency led us to the experimental implementation of an OAM-based multiplexing scheme between antenna arrays. Within this framework, the realization of a full-wave simulation of the communication link with COMSOL Multiphysics® software proved essential both ...
A. Shoory, A. Smorgonskiy, and F. Vega
Electromagnetic Compatibility (EMC) group, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
In this paper, we will present simulation results obtained using COMSOL RF module for the current along a wire antenna in both frequency and time domains. The structure is excited through a lumped (voltage or current) source at its center. For the frequency domain simulations we compare the results with the Numerical Electromagnetics Code (NEC-4) and for the time domain results we compare them ...
S. Landa, A. Bardenstein
Danish Technological Institute, Taastrup, Denmark
Upon operation, the magnetron of a conventional microwave oven induces a pattern of standing electromagnetic waves in the oven cavity. Interactions with the field define the amount of energy absorbed in a part of a food object within the cavity. The well-known inhomogeneous heating produced in a microwave oven is partially an effect of the standing waves’ natural nodes and antinodes and ...
O. Chellaï , S. Alberti , I. Furno , T. Goodman , M. Baquero 
 Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Suisse
In magnetically confined fusion devices, electron cyclotron resonance heating (80-170 GHz) is characterized by a local RF-power deposition at the electron cyclotron resonance . A mm-wave RF Gaussian beam is launched from a dedicated antenna and propagates through the highly turbulent scrape-off layer (SOL) at the edge of the confined plasma. Turbulence in the SOL is characterized by ...
S. Panigrahi , P. K. Nanda ,
 ITER, Siksha 'O' Anusandhan University, Bhubaneswar, Odisha, India
Wireless sensor network has been extensively applied in a wide variety of areas such as defense, agriculture, transportation, etc. The major challenge in those networks is the finite energy of the sensor node which is by and large engaged in transmitting and receiving data. It is known that substantial amount of energy is consumed in transmitter portion. The constituent unit of the transmitter i ...
S. Almousa , J. A. Deibel ,
 Department of Physics, Wright State University, Dayton, OH, USA
While low frequency light is poorly transmitted through an aperture in a conductive thin film, in the phenomenon known as extraordinary optical transmission (EOT), a narrow band of selected frequencies are transmitted when incident on an array of subwavelength periodic apertures where the resonant frequency is determined by the geometry of the aperture array and the metal-dielectric interface ...