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This paper presents a fully-integrated low-noise amplifier (LNA) to W-CDMA applications. A noise/input impedance matching methodology is applied to design the input stage of the LNA cascode topology. For circuit manufacturing, we have used a BiCMOS SiGe:C 0.25mum process which is well suited to low-noise applications. Good overall measured performances, in good agreement with simulation, are obtained.
We present in this article guidelines to design a dual-standard dual-mode low-noise amplifier (LNA) for DCS1800/W-CDMA applications. In order to save die area compared to conventional parallel LNAs, we have used an alternative circuit configuration. It consists of sharing the most die consuming elements (inductances) in both operation standards, enabling a more compact solution. The mode and standard...
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