Zobrazeno 1 - 10
of 334
pro vyhledávání: '"E. Bergeault"'
Publikováno v:
2020 Conference on Precision Electromagnetic Measurements (CPEM).
Full characterization of differential microwave circuits is traditionally performed by measuring their mixed mode scattering (S) parameters using a four-port vector network analyzer. This paper describes an evaluation of the uncertainty of on-wafer m
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 60:2445-2448
The radio frequency (RF) bolometer thermistor has been studied over a wide frequency range. A novel equivalent electrical model is presented to show the nonlinear behavior of the bolometer thermistor for different polarization direct currents. This m
Publikováno v:
Revue Française de Métrologie. :21-25
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 58:1592-1598
This paper presents the first efforts toward a calculable power standard in the RF domain based on a modeling approach. Consequently, it could be possible to theoretically determine the input reflection coefficient and the efficiency of the power det
Publikováno v:
International Journal of Microwave and Wireless Technologies. 1:255-260
In this paper, different techniques are combined in a unique characterization system dedicated to power transistor linearity improvement. Successive optimizations are performed using source-pull/load-pull techniques at fundamental, harmonic, and base
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 56:2164-2168
This paper presents the design and characterization of simple and low-cost zero-bias Schottky diodes used as power detectors operating under pulsed-radio-frequency (pulsed-RF) or complex modulated signals in six-port-reflectometer network analyzers.
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 51:408-412
An active load-pull measurement system using two six-port reflectometers operating in the W-frequency band is demonstrated. Ninety loads over the whole Smith chart have been synthesized and measured by both reflectometers. The maximum deviation betwe
Publikováno v:
IEEE Transactions on Vehicular Technology. 49:1416-1423
A new range/relative-speed sensor for automobiles is shown. Based on the six-port phase/frequency discriminator, it determines distance and Doppler frequency by means of the phase difference between transmitted and received signals. It presents sever
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 46:2068-2073
An original measurement system for nonlinear microwave power-transistor characterization using six-port reflectometers is presented. It allows independent active tuning of the output impedances at f/sub 0/ and 2f/sub 0/ (multiharmonic load-pull) and
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 45:338-344
In this paper a new method to calculate the noise parameters of transistors T/sub i/ (MESFET or HEMT) as a function of gatewidth and drain-bias current is presented. This method needs the knowledge of the R, P, and C coefficients. It is based on the