461 citations · 1k across the 28 of their papers we have counts for
29 papers
Detection and Prediction of Equilibrium States in Kinetic Plasma Simulations via Mode Tracking using Reduced-Order Dynamic Mode Decomposition
Indranil Nayak, Mrinal Kumar, Fernando L. Teixeira
A dynamic mode decomposition (DMD) based reduced-order model (ROM) is developed for tracking, detection, and prediction of kinetic plasma behavior. DMD is applied to the high-fidel…
Quantum Information Propagation Preserving Computational Electromagnetics
Dong-Yeop Na, Jie Zhu, Fernando L. Teixeira +1
We propose a new methodology, called numerical canonical quantization, to solve quantum Maxwell's equations useful for mathematical modeling of quantum optics physics, and numerica…
Beamforming Algorithm for Multiuser Wideband Millimeter-Wave Systems with Hybrid and Subarray Architectures
Carlos A. Viteri-Mera, Fernando L. Teixeira
We present a beamforming algorithm for multiuser wideband millimeter wave (mmWave) communication systems where one access point uses hybrid analog/digital beamforming while multipl…
Performance Analysis and Dynamic Evolution of Deep Convolutional Neural Network for Nonlinear Inverse Scattering
Lianlin Li, Long Gang Wang, Fernando L. Teixeira
The solution of nonlinear electromagnetic (EM) inverse scattering problems is typically hindered by several challenges such as ill-posedness, strong nonlinearity, and high computat…
DeepNIS: Deep Neural Network for Nonlinear Electromagnetic Inverse Scattering
Lianlin Li, Long Gang Wang, Fernando L. Teixeira +3
Nonlinear electromagnetic (EM) inverse scattering is a quantitative and super-resolution imaging technique, in which more realistic interactions between the internal structure of s…
Diagnosing numerical Cherenkov instabilities in relativistic plasma simulations based on general meshes
D. -Y. Na, J. L. Nicolini, R. Lee +3
Numerical Cherenkov radiation (NCR) or instability is a detrimental effect frequently found in electromagnetic particle-in-cell (EM-PIC) simulations involving relativistic plasma b…
Finite Element Time-Domain Body-of-Revolution Maxwell Solver based on Discrete Exterior Calculus
Dong-Yeop Na, Ben-Hur V. Borges, Fernando L. Teixeira
We present a finite-element time-domain (FETD) Maxwell solver for the analysis of body-of-revolution (BOR) geometries based on discrete exterior calculus (DEC) of differential form…
Launching and Controlling Gaussian Beams from Point Sources via Planar Transformation Media
Hayrettin Odabasi, Kamalesh Sainath, Fernando L. Teixeira
Based on operations prescribed under the paradigm of Complex Transformation Optics (CTO) [1-5], it was recently shown in [5] that a complex source point (CSP) can be mimicked by a…
Axisymmetric Charge-Conservative Electromagnetic Particle Simulation Algorithm on Unstructured Grids: Application to Microwave Vacuum Electronic Devices
Dong-Yeop Na, Yuri A. Omelchenko, Haksu Moon +2
We present a 2.5-dimensional charge-conservative electromagnetic particle-in-cell (EM-PIC) algorithm optimized for the analysis of vacuum electronic devices (VED) with cylindrical…
Application of time-reversal-based processing techniques to enhance detection of GPR targets
Vinicius R. N. Santos, Fernando L. Teixeira
In this paper we analyze the performance of time-reversal (TR) techniques in conjunction with various Ground Penetrating Radar (GPR) pre-processing methods aimed at improving detec…
Space-Time Block Diagonalization for Frequency-Selective MIMO Broadcast Channels
Carlos A. Viteri-Mera, Fernando L. Teixeira
The most relevant linear precoding method for frequency-flat MIMO broadcast channels is block diagonalization (BD) which, under certain conditions, attains the same nonlinear dirty…
Interface-Flattening Transform for EM Field Modeling in Tilted, Cylindrically-Stratified Geophysical Media
Kamalesh Sainath, Fernando L. Teixeira
We propose and investigate an "interface-flattening" transformation, hinging upon Transformation Optics (T.O.) techniques, to facilitate the rigorous analysis of electromagnetic (E…
Full-Wave Algorithm to Model Effects of Bedding Slopes on the Response of Subsurface Electromagnetic Geophysical Sensors near Unconformities
Kamalesh Sainath, Fernando L. Teixeira
We propose a full-wave pseudo-analytical numerical electromagnetic (EM) algorithm to model subsurface induction sensors, traversing planar-layered geological formations of arbitrar…
Interference-Nulling Time-Reversal Beamforming for mm-Wave Massive MIMO in Multi-User Frequency-Selective Indoor Channels
Carlos A. Viteri-Mera, Fernando L. Teixeira
Millimeter wave (mm-wave) and massive MIMO have been proposed for next generation wireless systems. However, there are many open problems for the implementation of those technologi…
Stable evaluation of Green's functions in cylindrically stratified regions with uniaxial anisotropic layers
H. Moon, B. Donderici, F. L. Teixeira
We present a robust algorithm for the computation of electromagnetic fields radiated by point sources (Hertzian dipoles) in cylindrically stratified media where each layer may exhi…
Spectral-Domain Computation of Fields Radiated by Sources in Non-Birefringent Anisotropic Media
Kamalesh Sainath, Fernando L. Teixeira
We derive the key expressions to robustly address the eigenfunction expansion-based analysis of electromagnetic (EM) fields produced by current sources within planar non-birefringe…
Equalized Time Reversal Beamforming for Indoor Wireless Communications
Carlos A. Viteri-Mera, Fernando L. Teixeira
Time-reversal (TR) is a beamforming technique for frequency-selective channels, which has received increasing attention due to its high energy efficiency and low computational comp…
Exact Charge-Conserving Scatter-Gather Algorithm for Particle-in-Cell Simulations on Unstructured Grids: A Geometric Perspective
Haksu Moon, Fernando L. Teixeira, Yuri A. Omelchenko
We describe a charge-conserving scatter-gather algorithm for particle-in-cell simulations on unstructured grids. Charge conservation is obtained from first principles, i.e., withou…
Computation of potentials from current electrodes in cylindrically stratified media: A stable, rescaled semi-analytical formulation
Haksu Moon, Fernando L. Teixeira, Burkay Donderici
We present an efficient and robust semi-analytical formulation to compute the electric potential due to arbitrary-located point electrodes in three-dimensional cylindrically strati…
Perfectly Reflectionless Omnidirectional Absorbers and Electromagnetic Horizons
Kamalesh Sainath, Fernando L. Teixeira
We demonstrate the existence of metamaterial blueprints describing, and fundamental limitations concerning, perfectly reflectionless omnidirectional electromagnetic absorbers (PR-O…
Spectral-Domain-Based Scattering Analysis of Fields Radiated by Distributed Sources in Planar-Stratified Environments with Arbitrarily Anisotropic Layers
Kamalesh Sainath, Fernando L. Teixeira
We discuss the numerically stable, spectral-domain computation and extraction of the scattered electromagnetic field excited by distributed sources embedded in planar-layered envir…
Tensor Green's Function Evaluation in Arbitrarily Anisotropic, Layered Media using Complex-Plane Gauss-Laguerre Quadrature
Kamalesh Sainath, Fernando L. Teixeira
We discuss the application of Complex-Plane Gauss-Laguerre Quadrature (CGLQ) to efficiently evaluate two-dimensional Fourier integrals arising as the solution to electromagnetic fi…
Bayesian compressive sensing for ultrawideband inverse scattering in random media
A. E. Fouda, F. L. Teixeira
We develop an ultrawideband (UWB) inverse scattering technique for reconstructing continuous random media based on Bayesian compressive sensing. In addition to providing maximum a…
Complex-Plane Generalization of Scalar Levin Transforms: A Robust, Rapidly Convergent Method to Compute Potentials and Fields in Multi-Layered Media
Kamalesh Sainath, Fernando Teixeira, Burkay Donderici
We propose the complex-plane generalization of a powerful algebraic sequence acceleration algorithm, the Method of Weighted Averages (MWA), to guarantee exponential-cum-algebraic c…