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Conference Papers Year : 2022

A Design Technique For Linear Desensitized LNAs


A new analytical design procedure utilizing adding a parallel amplifier for low noise amplifiers (LNA) is presented. In this method, the linearity and noise figure (NF) of the LNA is investigated in order to improve the LNA performance. Using the noise Correlation matrix (CA), the noise parameters of the paral- lel network is calculated. It is proven that using this method, the input impedance is less sensitive to noise matching. To evaluate the proposed approach, two different LNAs using single and two- parallel paths are designed and the Electromagnetic momentum (EM) simulation results are compared. EM simulation result for the designed 9-12 GHz LNA with the 0.1-μm pseudomorphic GaAs pHEMT model is reported to support proposed theories. The results represent that using the parallel method the linearity, input and output impedance matching, NF and gain can improve with a 30% increase in power consumption.
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hal-03576647 , version 1 (16-02-2022)


  • HAL Id : hal-03576647 , version 1


Masoumeh Sabzi, Mahmoud Kamarei, Yann Mahé, Tchanguiz Razban. A Design Technique For Linear Desensitized LNAs. International Conference on Electrical Engineering, May 2022, ICEE2022 Virtual Conference, Iran. Paper Id: icee1341. ⟨hal-03576647⟩
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