Search Results - "Nallatamby, J C"

Amplitude and phase noise of magnetic tunnel junction oscillators by Quinsat, M., Gusakova, D., Sierra, J. F., Michel, J. P., Houssameddine, D., Delaet, B., Cyrille, M.-C., Ebels, U., Dieny, B., Buda-Prejbeanu, L. D., Katine, J. A., Mauri, D., Zeltser, A., Prigent, M., Nallatamby, J.-C., Sommet, R.

“…The microwave emission linewidth of spin transfer torque nano-oscillators is closely related to their phase and amplitude noise that can be extracted from the…”
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A novel fast calibration method for NVNAs based linearity setup by dos Santos, J. A. Silva, Reveyrand, T., Gaillard, F., Medrel, P., Nebus, J-M., Prigent, M., Nallatamby, J-C., Chang, C.

“…This paper deals with a new calibration procedure dedicated to on-wafer passive load-pull NVNA setups that allows the search of optimal impedances (associated…”
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Phase noise in oscillators - Leeson formula revisited by Nallatamby, J.-C., Prigent, M., Camiade, M., Obregon, J.

“…In the field of linear feedback-systems formalism, the Leeson formula is a useful tool for the determination of phase noise in feedback oscillators…”
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An advanced low-frequency noise model of GaInP-GaAs HBT for accurate prediction of phase noise in oscillators by Nallatamby, J.-C., Prigent, M., Camiade, M., Sion, A., Gourdon, C., Obregon, J.J.

“…We present a new low-frequency noise model of a GaInP-GaAs HBT and the associated extraction process from measurements. Specific measurements enable us to…”
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Extension of the Leeson formula to phase noise calculation in transistor oscillators with complex tanks by Nallatamby, J.-C., Prigent, M., Camiade, M., Obregon, J.J.

“…For phase noise evaluation in feedback oscillators, the Leeson formula is a useful tool. Nevertheless, a direct application to oscillator circuits with complex…”
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A unified approach for the linear and nonlinear stability analysis of microwave circuits using commercially available tools by Mons, S., Nallatamby, J.-C., Quere, R., Savary, P., Obregon, J.

“…For the first time, an exhaustive linear and nonlinear stability analysis of multitransistors monolithic-microwave integrated-circuit (MMIC) circuits is…”
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On the role of the additive and converted noise in the generation of phase noise in nonlinear oscillators by Nallatamby, J.-C., Prigent, M., Obregon, J.

“…In a conventional approach, the oscillator phase noise due to noise sources near carrier is defined as additive phase noise by assuming that the oscillator…”
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An efficient method for nonlinear distortion calculation of the AM and PM noise spectra of FMCW radar transmitters by Laloue, A., Nallatamby, J.-C., Prigent, M., Camiade, M., Obregon, J.

“…The demand for autonomous cruise control and collision warning/avoidance systems has increased in recent years. Many systems based on frequency-modulated…”
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Characterization and Modeling of DHBT in InP/GaAsSb Technology for the Design and Fabrication of a Ka Band MMIC Oscillator by Laurent, S., Nallatamby, J. C., Prigent, M., Riet, M., Nodjiadjim, V.

“…This paper presents the design of an MMIC oscillator operating at a 38 GHz frequency. This circuit was fabricated by the III–V Lab with the new InP/GaAsSb…”
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Linearity and Efficiency Characterization of AlGaN/GaN and InAlGaN/GaN HEMTs devices using Multi-tone Large Signal Measurements by Gillet, V., Bouslama, M., Piotrowicz, S., Potier, C., Patard, O., Prigent, M., Nallatamby, J-C., Chang, C., Quere, R.

“…In this paper, the linearity and efficiency of 2 different technologies of HEMT transistors (AlGaN/GaN and InAlGaN/GaN) has been performed using multi-tone…”
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Low phase noise operation of microwave oscillator circuits by Nallatamby, J.-C., Prigent, M., Vaury, E., Laloue, A., Camiade, M., Obregon, J.

“…In this paper, we describe a theoretical basis, leading to new results, on the general conditions to be fulfilled by oscillator circuits to achieve a very low…”
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A physics based analytical model and numerical simulation for current-voltage characteristics of microwave power AlGaN/GaN HEMT by Subramani, N. K., Nallatamby, J.-C, Sahoo, A. K., Sommet, R., Quere, R., Bindu, B.

“…A simple analytical model which validates both intrinsic and extrinsic current-voltage characteristics of AlGaN/GaN HEMT is presented. The dependence of…”
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An efficient design method of microwave oscillator circuits for minimum phase noise by Prigent, M., Camiade, M., Nallatamby, J.C., Guittard, J., Obregon, J.

“…In this paper, we describe a newly developed design method of high-Q microwave oscillator circuits leading to the minimum phase noise for a given transistor…”
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Systematic study of traps in AlN/GaN/AlGaN HEMTs on SiC substrate by numerical TCAD simulation by Subramani, N. K., Sahoo, A. K., Nallatamby, J.-C, Sommet, R., Quere, R.

“…In this work, we investigate the impact of GaN channel traps on the performance of AlN/GaN/AlGaN HEMT device grown on SiC substrate using two-dimensional TCAD…”
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New system-level simulation of noise spectra distortion in FM-CW autonomous cruise control radar by Laloue, A., Nallatamby, J.-C., Camiade, M., Prigent, M., Obregon, J.

“…The design of complex MMICs such as ACC car radar involves the development of efficient and fast simulation techniques to predict the characteristics of the…”
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A unified approach of PM noise calculation in large RF multitone autonomous circuits by Bolcato, P., Nallatamby, J.C., Larcheveque, R., Prigent, M., Obregon, J.

“…This paper presents a simulation method to compute noise in autonomous and forced circuits using the harmonic balance (HB) formulation. Thanks to iterative…”
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Thermal Characterization and Simulation of GaN-on-SiC HEMT Transistors in Transient and Steady-State Regimes by Karrame, K., Nallatamby, J.C., Chang, C., Colas, M., Sommet, R.

“…The temperature of the channel significantly affects the performance of GaN HEMT transistors. In this study, we employed various methods, including three…”
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A new approach to nonlinear analysis of noise behavior of synchronized oscillators and analog-frequency dividers by Nallatamby, J.C., Prigent, M., Sarkissian, J.C., Quere, R., Obregon, J.

“…An original theory of phase noise in synchronized oscillators is outlined through the phase-locked loop (PLL) approach. The phase-noise spectrum obtained first…”
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Full analysis of chaotic microwave oscillator for use in frequency modulated chaos shift keying communication system by Guittard, J., Penaud, S., Nallatamby, J. C., Quéré, R.

“…A full analysis of a chaotic microwave oscillator based on envelope transient analysis is presented for the first time. The technique overcomes problems…”
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A measurement based distributed low frequency noise HEMT model: application to design of millimeter wave automotive radar chip sets by Laloue, A., Lyoubi, A., Camiade, M., Nallatamby, J.C., Valenza, M., Prigent, M., Obregon, J.

“…A fully measurement based extraction procedure of a distributed low-frequency nonlinear noise model of a PHEMT is proposed. This model describes accurately the…”
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