Publicaciones
Conoce acerca de las pulicaciones realizadas por el Grupo de Investigación.
FDTD Analysis of Temperature-Dependent Electromagnetic Properties in Indium-Antimonide
Sleiter Ramos-Sanchez, Mark Clemente-Arenas (2026)
DOI: IEEE-LACAP-2026 (ACEP.)
The Finite-Difference Time-Domain (FDTD) method is a widely adopted numerical technique for solving Maxwell's equations in the time domain. Although FDTD has been extensively employed for electroma...
Object Detection on Road: Vehicle’s Detection Based on Re-Training Models on NVIDIA-Jetson Platform
Sleiter Ramos-Sanchez, Jinmi Lezama, Ricardo Yauri, Joyce Zevallos (2026)
DOI: 10.3390/jimaging12010020
The increasing use of artificial intelligence (AI) and deep learning (DL) techniques has driven advances in vehicle classification and detection applications for embedded devices with deployment co...
Recurrent Neural Networks with Attention for Indoor Localization in 5G: Evaluation on the xG-Loc Dataset
Milton Soria, Sleiter Ramos-Sanchez, Jinmi Lezama, Alberto M. Coronado (2026)
DOI: 10.3390/electronics150305
Accurate indoor localization in 5G remains challenging due to multipath propagation, signal blockage, and limited bandwidth in frequency range 1 (FR1). This study evaluates attention-based recurren...
Vegetation Height Estimation Using a 77-80 GHz Millimeter-Wave Radar
Daniel Espinal-de-la-Cruz, Mark Clemente-Arenas, Jinmi Lezama, Sleiter Ramos-Sanchez (2026)
DOI: IEEE-LACAP-2026 (ACEP.)
This paper investigates a low-cost 77-80~GHz FMCW millimeter-wave radar workflow for short-range forest canopy-height estimation. Radar echoes collected along linear trajectories in front of real t...
A High-Efficiency Resistively Loaded Metasurface Absorber for X-Band Operation
Chatla Monica, Praveen Kitti-Burri, Mark Clemente-Arenas, Shaik Mohammed-Abzal, Rupesh Kumar (2025)
DOI: IEEE-MAPCON-2025 (ACEP.)
This paper presents a broadband, polarization-insensitive metasurface absorber designed using sub-wavelength unit cells for efficient microwave absorption. The structure achieves high absorption ov...
Automated Shape Classification Using SAR Imaging and Machine Learning
Chandra Wadde; Venkata Ramana Murthy Pondala; Gokul Chinnaraj; Mark Clemente-Arenas; Rupesh Kumar (2025)
DOI: 10.1109/SPACE65882.2025.1
The proposed method involves generating milli-meter Wave Frequency Modulated Continuous Wave (mmWave FMCW) radar image data through MATLAB modeling, reconstructing images using SAR imaging techniqu...
Classification of Skin Lesions using Machine Learning from Extracted Image Features
Sleiter Ramos-Sanchez, Victor Ayma-Quirita, Daniel Espinal-de-la-Cruz, Jinmi Lezama-Calvo (2025)
DOI: 10.1109/TEMSCONLATAM65810
The present work addresses the problem of skin lesions, which can appear in different forms and locations on the body and are classified according to their type. Early segmentation and classificati...
Conversational Assistant with Large Language Model Agent for Natural Interaction in Home Automation Environments
Ricardo Yauri, Rafael Espino (2025)
DOI: 10.52549/ijeei.v13i4.7028
Digital transformation has driven the development of smart home automation systems for healthcare and remote assistance, which can integrate large language models, foundational models, and Retrieva...
Détection des défauts d'arc par radiation électromagnétique utilisant la technologie des antennes
Rafael Charca-Benavente, Jinmi Lezama, Mark Clemente-Arenas, Patrick Schweitzer (2025)
DOI: 10.52497/jitipee.v9i1.378
Les défauts d’arc dans les systèmes électriques représentent un risque majeur pour la sécurité et nécessitent des méthodes de détection fiables. Alors que les techniques traditionnelles reposent su...
Electrically tunable silicon–organic metasurface as demultiplexer for wavelength-division multiplexing systems
Ruth E. Rubio-Noriega, Franck D. Soria-Pinedo, Mark Clemente-Arenas, Julio V. Urbina, Hugo Enrique Hernandez-Figueroa, Akhlesh Lakhtakia (2025)
DOI: 10.1117/1.OE.64.7.077103
Through numerical simulations, we have demonstrated the electrical tunability of a silicon–organic metasurface that may be useful for optical-communication systems with wavelength-division multiple...
Electronic and Optical Properties of Transition-Metal-Modified BiFeO3: A First Principles Study
A. P. Aslla-Quispe, L. C. Huamani-Aslla, B. Barzola-Moscoso, Mark Clemente-Arenas, P. H. Rivera, J. D. S. Guerra (2025)
DOI: 10.3390/ma19010066
The structural, electronic, magnetic, and optical properties are explored in the G-type antiferromagnetic BiFeO3 system by replacing the Fe cation with transition metals to form the BiFe0.834X0.166...
Embedded system with automatic control for solar energy capture using photovoltaic panels
Frank Rojas, Fabrizzio Contreras, Juan Alvarez, Ricardo Yauri, Rafael Espino (2025)
DOI: 10.11591/eei.v14i6.10772
Solar energy harvesting addresses challenges related to environmental variability and the limitations of fixed systems, which affect the energy yield obtained from photovoltaic panels. To improve e...
High-Q Terahertz Perfect Absorber Based on a Dual-Tunable InSb Cylindrical Pillar Metasurface
Rafael Charca-Benavente, Jinmi Lezama-Calvo, Mark Clemente-Arenas (2025)
DOI: 10.3390/telecom6030070
Perfect absorbers operating in the terahertz (THz) band are key enablers for next-generation wireless systems. However, conventional metal-dielectric designs suffer from Ohmic losses and limited re...
Intelligent building automation system using ESP32, Azure and internet of things technologies
Fernando Cardoza, Cristy Samamé, Ricardo Yauri, Antero Castro (2025)
DOI: 10.11591/eei.v14i6.11021
The adoption of home automation systems in buildings faces limitations due to their cost, integration complexity, and protocol heterogeneity, which hinders the development of accessible solutions b...
Load Classification using Machine Learning on NanoEdge AI Studio for STM32 Microcontroller
Jinmi Lezama, Hamphol Romero, Andy Sayhua (2025)
DOI: 10.1109/TEMSCONLATAM65810
This paper introduces an embedded system designed for the accurate classification of domestic electrical loads through current signature analysis. The system leverages a machine learning model base...
Study of 2D Terahertz SAR Imaging Based on FMCW Radar System
Chandra Wadde; Mark Clemente-Arenas; Sravani Nagireddy; Gayatri Routhu; Rupesh Kumar (2025)
DOI: 10.1109/SPACE65882.2025.1
Terahertz (THz) systems employing frequency-modulated continuous-wave (FMCW) radar, in conjunction with the synthetic aperture radar imaging (SAR), have demonstrated significant potential across mu...
Thermally Tunable Bi-Functional Metasurface Based on InSb for Terahertz Applications
Rafael Charca-Benavente, Rupesh Kumar, Ruth Rubio-Noriega, Mark Clemente-Arenas (2025)
DOI: 10.3390/ma18122847
In this work, we propose and analyze a thermally tunable metasurface based on indium antimonide (InSb), designed to operate in the terahertz (THz) frequency range. The metasurface exhibits dual fun...
Application of the Finite-Difference Time-Domain Method in Presence of Dispersive Medium
Sleiter Ramos-Sanchez; Mark Clemente-Arenas (2024)
DOI: 10.1109/INTERCON63140.202
The Finite-Difference Time-Domain (FDTD) method is a popular numerical approach for solving Maxwell's equations in the time domain. While the FDTD method has been extensively applied to calculate p...
Four Element Dielectric Resonator Antenna Array with Quasi Antipodal Radiation Pattern for 5G Applications
Jean Cucchi-Quispe; Ramzy Gonzalez-Martinez; Mark Clemente-Arenas (2024)
DOI: 10.1109/AP-S/INC-USNC-URS
This article presents the design results of a four element array of dielectric resonator antennas (DRA). The antenna geometry includes a conformal open-loop feed for each of the four elements. The ...
Integrated Modeling and Target Classification Based on mmWave SAR and CNN Approach
Chandra Wadde; Gayatri Routhu; Mark Clemente-Arenas; Surya Prakash-Gummadi & Rupesh Kumar (2024)
DOI: 10.3390/s24247934
This study presents a numerical modeling approach that utilizes millimeter-wave (mm-Wave) Frequency-Modulated Continuous-Wave (FMCW) radar to reconstruct and classify five weapon types: grenades, k...
Mutual coupling effects in 2×2 antenna array for ground penetrating radar on multilayered soil
Marco Becerra-Perez, Tanith Guerra-Huaranga, Maria Armas-Alvarado, Mark Clemente-Arenas, Ruth Rubio-Noriega (2024)
DOI: 10.11591/ijeecs.v33.i2.pp
Caral stands as the Americas’ oldest city, boasting a heritage spanning 5,000 years. Over time, various natural forces have woven a complex geological stratum. To gain a deeper understanding of the...
Non-metallic magnetostatically tunable metasurface absorber for terahertz waves
Mark Clemente-Arenas, Ruth E. Rubio-Noriega, Julio V. Urbina, and Akhlesh Lakhtakia (2024)
DOI: 10.1364/JOSAB.509647
A non-metallic metasurface absorber containing VO2, InSb, and Teflon has been designed, simulated, and investigated for normally incident plane waves in the terahertz spectral regime. When the temp...
Simulation Environment for the Testing of Electrical Arc Fault Detection Algorithms
Jinmi Lezama; Patrick Schweitzer; Etienne Tisserand & Serge Weber (2024)
DOI: 10.3390/electronics132040
Electrical arc fault detector development requires many tests to develop and validate detection algorithms. The use of artificial intelligence or mathematical transformation requires the use of con...
Thermally Tunable Terahertz Bifunctional Metasurface Based on Indium Antimonide
Rafael Charca-Benavente; Mark Clemente-Arenas (2024)
DOI: 10.1109/AP-S/INC-USNC-URS
A metasurface with thermal tunability using Indium Antimonide (InSb) is proposed, showing dual functionalities of absorption and polarization conversion. In its metallic state at a temperature of 2...
Analysis of a DC-DC Flyback Converter Variant for Thermoelectric Generators with Partial Energy Processing
R. Marroquín-Arreola, D. Salazar-Pérez, M. Ponce-Silva, H. Hernández-De León, J. A. Aquí-Tapia, J. Lezama, Y. I. Saavedra-Benítez, E. N. Escobar-Gómez, R. E. Lozoya-Ponce & R. Mota-Grajales (2021)
DOI: 10.3390/electronics100506
This paper presents a theoretical analysis of a DC-DC flyback converter variant applied in energy harvesting based on thermoelectric generators. The main contribution of the article is the analysis...
Evaluation of Decoupling Methods for 2D DRA Antenna Array for Millimeter Wave Applications
Rogger Valencia-Castrillon; Mark Clemente-Arenas (2021)
DOI: 10.1109/INTERCON52678.202
In this paper, the evaluation results of three decoupling methods for Dielectric Resonator Antenna DRA are presented for a 2 x 2 element array operating between 27.5 GHz and 28.35 GHz for 5G applic...
Optimization of an 8-Patch Serial Antenna Using Bat Algorithm for 5G Applications
Daniel Espinal-De-La-Cruz; Saúl Inca; Mark Clemente-Arenas (2021)
DOI: 10.1109/INTERCON52678.202
This paper presents the optimization of bandwidth, gain and beamwidth of an 8-patch serial antenna 8-PSA based on the bat algorithm. This technique is in charge of finding the geometrical variables...
Radio Capacity Estimation at Millimeter-Wave for Cellular Networks for Inside Metro Carriages Scenarios
Jenny Luque; Carlos Ulloa; Daniel Diaz; Mark Clemente-Arenas (2021)
DOI: 10.1109/INTERCON52678.202
This paper investigates on the channel capacity estimation in millimeter-wave bands of ultra-wideband transmission for inside metro carriage scenarios. For the simulations, a high-precision 3D mode...
Millimeter-Wave Line-of-Sight Probability Modeling for Inside Metro Carriages Scenarios
Carlos Ulloa; Jenny Luque; Mark Clemente-Arenas; Saúl Inca (2020)
DOI: 10.1109/INTERCON50315.202
This paper proposes a new Line of Sight (LoS) probability model for metro carriage scenarios to evaluate radio propagation for the future Fifth Generation (5G) Wireless Communications Systems in th...