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Miranda Pantoja, José Miguel ; Sebastián Franco, José Luis | IEEE-Inst Electrical Electronics Engineers Inc | 1995-08This paper presents a detailed analysis of the accuracy of nonoscillating one-port device noise measurements. A new expression is given for the calculation of the noise temperature from parameters that can be measured directly by using either a [...]texto impreso
Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Sancho Ruíz, Miguel ; Miranda Pantoja, José Miguel | IOP publishing ltd | 2006-12-07We calculate the induced electric stress forces on transient hydrophobic pores in the membrane of an erythrocyte exposed to an electric field. For this purpose, we use a finite element numerical technique and a realistic shape for the biconcave [...]texto impreso
Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Sancho Ruíz, Miguel ; Miranda Pantoja, José Miguel | IOP publishing ltd | 2001-01This paper shows the importance of using a cell model with the proper geometry, orientation and internal structure to study possible cellular effects from direct radiofrequency exposure. For this purpose, the electric field intensity is calculat[...]texto impreso
Miranda Pantoja, José Miguel ; Muñoz San Martín, Sagrario ; Sebastián Franco, José Luis | IEEE | 2001This paper presents a procedure for an accurate characterization of parasitic effects of terminal pads in microwave devices. This procedure is based on the measurement of S and Noise parameters of the device with two different sets of calibratio[...]texto impreso
Sancho Ruíz, Miguel ; Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Miranda Pantoja, José Miguel | IEE- Inst. Elec. Eng. | 2001-05A variational method is presented which uses the Monte Carlo technique to simulate the evolution of a distribution of discrete charges within a conductor towards an equilibrium configuration that is characterised by a minimum of electrostatic en[...]texto impreso
Miranda Pantoja, José Miguel ; Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario | Amer Inst Physics | 1998-01-12The maximum entropy method is presented in this letter as a highly interesting procedure for the investigation of high frequency noise properties of bulk semiconductors and electron devices at microscopic level. A Monte Carlo simulation of the h[...]texto impreso
Sanchis, A. ; Sancho Ruíz, Miguel ; Martínez López, Genoveva ; Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Miranda Pantoja, José Miguel | Wiley-Liss | 2007-07Measurements of dielectrophoretic collection spectra of Escherichia coli and Staphylococcus aureus suspensions are used for obtaining dielectric characteristics of both types of bacteria. The experiments are interpreted using a numerical method [...]texto impreso
Muñoz San Martín, Sagrario ; Sebastián Franco, José Luis ; Miranda Pantoja, José Miguel | IEEE | 1997A comparison between predicted and measured noise temperatures for cryogenic HEMT amplifiers is presented by using the Pospieszalski's noise model. A good agreement between predicted and measured amplifier's noise performance is obtained both at[...]texto impreso
Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Sancho Ruíz, Miguel ; Álvarez Galindo, Gabriel ; Miranda Pantoja, José Miguel | IOP publishing ltd | 2007-12-07We have studied the influence of the anisotropic and dispersive nature of the red blood cell structure on the energy absorption and electric field distribution within the cell exposed to electromagnetic fields of frequencies in the range from 50[...]texto impreso
Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Sancho Ruíz, Miguel ; Martínez López, Genoveva ; Álvarez Galindo, Gabriel | American Physical Society | 2011-07-28We use the Maxwell stress tensor to calculate the dielectrophoretic force and electrorotational torque acting on a realistic four-shelled model of the yeast Saccharomyces cerevisiae in a nonuniform rotating electric field generated by four copla[...]texto impreso
Sebastián Franco, José Luis ; Muñoz San Martín, Sagrario ; Sancho Ruíz, Miguel ; Miranda Pantoja, José Miguel ; Álvarez Galindo, Gabriel | American Physical Society | 2005-09We study the influence of an external electromagnetic field of 1.8 GHz in the formation or disaggregation of long rouleau of identical erythrocyte cells. In particular we calculate the variation of the transmembrane potential of an individual er[...]texto impreso
Antoranz Canales, Pedro ; Miranda Pantoja, José Miguel ; Sebastián Franco, José Luis ; Cámara, M. ; Fonseca González, Mª Victoria | American Institute of Physics | 2005-05-01We report on this work a model to accurately predict the electrical behavior of double-heterostructure GaN/SiC blue light-emitting diodes up to microwave frequencies. A procedure to extract the series resistance (R-s) from the reflection coeffic[...]texto impreso
Miranda Pantoja, José Miguel ; Sebastián Franco, José Luis | IEEE- Inst. Electrical Electronics Engineers Inc | 2000-11This work presents a systematic investigation of the influence of reactive ion etching (RIE) on the microwave noise performance of GaAs Schottky diodes. A number of devices has been fabricated by making use of RIE techniques in the anode window [...]texto impreso
Miranda Pantoja, José Miguel ; Muñoz San Martín, Sagrario ; Sebastián Franco, José Luis | IEEE-Inst Electrical Electronics Engineers Inc | 2002-08In this paper, we investigate how critical the calibration kit is on an accurate estimation of microwave device parasitic elements. The semiempirical cold FET method has been applied to the extraction of the small signal equivalent circuit of se[...]texto impreso
This paper presents a procedure to improve the algorithm of Sangiorgi, Ricco and Venturi for the calculation of the time of flight in Monte Carlo simulations. The method is used to efficiently optimize the step function in which the total scatte[...]
