Accurate Modeling of RF Circuit Blocks: Weakly-Nonlinear Narrowband LNAs

Croon, J.A.; Leenaerts, D.M.W.; Klaassen, D.B.M.

doi:10.1109/cicc.2007.4405865

Cited by 3 publications

(1 citation statement)

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“…This includes the complete set of admittances needed to describe the weakly non-linear behavior [13], which were not taken into account in [12], but the number of inputs was limited to two (W and L s ). Results indicate that a greater number of samples is needed to achieve a similar level of accuracy as using the analytic model.…”

Section: Forward Modelingmentioning

confidence: 99%

Forward and Reverse Modeling of Low Noise Amplifiers Based on Circuit Simulations

Tommasi

Rommes

Beelen

et al. 2011

Lecture Notes in Electrical Engineering

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Forward and reverse modeling of RF circuit blocks are useful approaches in design space exploration. The underlying idea of forward modeling is the creation of accurate surrogate models, which can be used to predict the circuit performances replacing (expensive) circuit simulations. On the other hand, reverse modeling concerns multiobjective optimization to explore relevant trade-offs between performances. This paper provides a discussion of application of surrogate models and multiobjective optimization to narrow-band low noise amplifier design. We discuss numerical difficulties encountered when the forward model is derived by using surrogate models of low noise amplifier admittances to compute performance figures via analytical equations. Afterward, we provide an example where direct performace modeling leads to a more accurate result even when the simplest surrogate model type (a lookup table) is used. Finally, a detailed tutorial of the normal boundary intersection optimization method is provided.

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Section: Forward Modelingmentioning

confidence: 99%