A method for the determination of a distributed FET noise model based on matched‐source noise‐figure measurements

Maya, M. C.; Lázaro, Antonio; Pradell, L.

doi:10.1002/mop.20099

Cited by 1 publication

(1 citation statement)

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“…The FDTD technique was used to solve the above equations. Applications of the FDTD method to the full-wave solution of Maxwell's equations have shown that accuracy and stability of the solution can be achieved if the electric and magnetic field solution points are chosen to alternate in space and be separated by one-half the position discretization, e.g., Δx/2, and to also be interlaced in time and separated by Δt/2 [15][16]. To incorporate these constraints into the FDTD solution of the transmission-line equations, we divided each line into Nx sections of length x, as shown in Figure 3.…”

Section: The Fdtd Formulationmentioning

confidence: 99%

Efficient Time-Domain Signal and Noise FET Models for Millimetre-Wave Applications

Asadi¹,

Yagoub²

2013

JEMAA

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Based on the active coupled line concept, a novel approach for efficient signal and noise modeling of millimeter-wave field-effect transistors is proposed. The distributed model considers the effect of wave propagation along the device electrodes, which can significantly affect the device performance especially in the millimetre-wave range. By solving the multi-conductor transmission line equations using the Finite-Difference Time-Domain technique, the proposed procedure can accurately determine the signal and noise performance of the transistor. In order to demonstrate the proposed FET model accuracy, a distributed low-noise amplifier was designed and tested. A model selection is often a trade-off between procedure complexity and response accuracy. Using the proposed distributed model versus the circuit-based model will allow increasing the model frequency range.

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Section: The Fdtd Formulationmentioning

confidence: 99%