Recent Journal Papers:

• Calvo-de la Rosa, J.; Bou-Comas, A., Hernàndez, J.M., Marín, P., Lopez-Villegas, J.M., Tejada, J., Chudnovsky, E.M., New Approach to Designing Functional Materials for Stealth Technology: Radar Experiment with Bilayer Absorbers and Optimization of the Reflection Loss, in Adv. Funct. Mater., pp. 2308819, 2023.
• Lopez-Villegas J.M., Vidal N.; Salas Barenys A., “3D-Printed Broadband Power Divider Based on Helical-Microstrip Transmission Line Segments,” in IEEE Access, vol. 10, pp. 63375-63382, 2022.
• Zhou I.; Pradell Ll.; Lopez-Villegas J.M., Vidal N.; Albert M.; Jofre Ll.; Romeu J., “Microstrip-Fed 3D-Printed H-Sectorial Horn Phased Array,” in Sensors, 22(14), 5329; 2022.
• Lopez-Villegas J.M.; Vidal N.; Salas Barenys A, “Design, manufacture and characterization of compact filter assemblies for radiofrequency applications,” in Additive Manufacturing, 48, 12, 2021.
• Vidal N.; Lopez-Villegas J.M.; Romeu J.; Salas Barenys A.; Garcia-Miquel A.; Gonzalez-Lopez G.; Jofre L., “3D-Printed UHF-RFID Tag for Embedded Applications,” in IEEE Access, vol. 8, pp. 146640-146647, 2020.
• Lopez-Villegas J.M.; Salas Barenys A.; Vidal N., “Modeling of 3-D-Printed Helical-Microstrip Transmission Lines for RF Applications,” in IEEE Transactions on Microwave Theory and Techniques, vol. 67, no. 12, pp. 4914-4921, 2019.
• Vidal, N.; Lopez-Villegas, J.M.; del Alamo, J.A., “Analysis and Optimization of Multi-Winding Toroidal Inductors for Use in Multilayered Technologies, “in IEEE Access, 7, 93537-93544, 2019.
• Lopez-Villegas, J.M.; Vidal, N.; Sieiro, J.; Salas, A.; Medina, B.; Ramos, FM, “Study of 3-D printed conical inductors for broadband RF applications, “in IEEE Transactions on Microwave Theory and Techniques 66 (8), 3597-3602, 2018.
• Romeu, J., Blanch, S., Vidal, N., Lopez-Villegas, J., Aguasca, A., “Assessment of 3D Printing Technologies for Millimeter Wave Reflectors, “in IEEE Antennas and Wireless Propagation Letters, 17, 11, 2061-2064, 2018.
• Curto, S.; Garcia-Miquel, A; Suh, M.; Vidal, N.; Lopez-Villegas, J. M; Prakash, P., “Design and characterization of a phased antenna array for intact breast hyperthermia, “in International Journal of Hyperthermia,34, 3, 250-260, 2018.
• Ahyoune, S.; Sieiro, J.; Carrasco, T.; Vidal, N.; Lopez-Villegas, J.M.; Roca, E.; Fernandez, F.V., “Quasi-static PEEC planar solver using a weighted combination of 2D and 3D analytical Green’s functions and a predictive meshing generator, “in Integration, 63, 332-341, 2018.
• Gonzalez-Echevarria, R.; Roca, E.; Castro-Lopez, R.; Fernandez, F.; Sieiro, J.; Lopez-Villegas, J.M.; Vidal, N., “An automated design methodology of RF circuits by using Pareto-optimal fronts of EM- simulated inductors, “in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 36, 1, 15-26, 2017.
• Lopez-Villegas, J.M; Vidal, N.; del Alamo, J.A., “Optimized Toroidal Inductors Versus Planar Spiral Inductors in Multilayered Technologies, “in IEEE Transactions on Microwave Theory and Techniques, 65, 2, 423-431, 2017.
• Garcia-Miquel, A.; Curto, S.; Vidal, N.; Lopez-Villegas, J.M.; Ramos, F.M.; Prakash, P., “Multilayered broadband antenna for compact embedded implantable medical devices: design and characterization, ” in Progress In Electromagnetics Research-Pier, 159, 1-13, 2017.
• Gonzalez-Echevarría, R.; Castro-Lopez, R.; Roca E.; Fernández, F.V.; Sieiro, J.; Vidal, N.; Lopez-Villegas, J.M., “Automated generation of the optimal performance trade-offs of integrated inductors, ” in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 33, 8, 1269-1273, 2014. 
• Sieiro, J.; Carrasco, T.; Ahyoune, S.; Vidal, N.; López-Villegas, J.M. Osorio, J.A., “Synthesis of planar Inductors in low temperature co-fired ceramic technology, “Analog Integrated Circuits and Signal Processing, 78, 1, 77-86, 2014.
• Vidal, N.; Curto, S.; Lopez-Villegas, J.M.; Sieiro, J.; Ramos, F.M., “Detuning study of implantable antennas inside the human body, “in Progress In Electromagnetics Research-Pier, 124, 265-283, 2012.
• Vidal, N.; Lopez-Villegas, J.M.; Sieiro, J.J., “Subcutaneous implanted antennas: interaction with biological tissues, “in Compel-The International Journal For Computation And Mathematics In Electrical And Electronic Engineering, 31, 4, 1154-1163, 2012.
• Carrasco, T.; Sieiro, J.; Lopez-Villegas, J.M.; Vidal, N.; Gonzalez-Echevaria, R.; Roca, E., “Mixed-mode impedance and reflection coeficient of two-port devices, “in Progress in Electromagnetics Research-Pier, 130, 411-428, 2012.
• Vidal, N.; Lopez-Villegas, J.M., “Changes in Electromagnetic Field Absorption in the Presence of Subcutaneous Implanted Devices: Minimizing Increases in Absorption, “in IEEE Transactions on Electromagnetic Compatibility, 52, 3, 545-555, 2010.
• López-Villegas, J.M.; Vidal, N.; Macias-Montero, J.G., “FSK Coherent Demodulation Using Second-Harmonic Injection Locked Oscillator, “in IEEE Microwave and Wireless Components Letters, 19, 9, 578-580, 2009.
• J.M. López-Villegas and N. Vidal, “Accurate physical modeling of discretization error in 1-D perfectly matched layers using finite-difference time-domain method, “in IEEE Transactions on Microwave Theory and Techniques, 56, 9, 2076-2085, 2008.
• Lopez-Villegas, J.M.; Gabriel Macias, J.G.; Osorio, J.A.; Cabanillas, J.; Vidal, N.; Samitier, J., “BPSK to ASK Signal Conversion Using Injection-Locked Oscillators-Part II: Experiment, “in IEEE Transactions on Microwave Theory and Techniques, 54, 1, 226-234, 2006.
• Lopez-Villegas, J.M.; Macias, J.G.; Osorio, J.A.; Cabanillas, J.; Sieiro, J.J.; Samitier, J.; Vidal, N., “Continous Phase Shift of Sinusoudal Signals Using Injection Locked Oscillators, “in IEEE Microwave and Guided Wave Letters, 15, 5, 312-314, 2005.