Design And Analysis Of Low Noise Amplifier Using Cadence

Norzayani, Shafie (2014) Design And Analysis Of Low Noise Amplifier Using Cadence. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This paper presents a Low Noise Amplifier also known as LNA for any application in wireless communication system. LNA is an electronic amplifier used to amplify a possible very weak signal that captured by antenna. LNA is a very important part in RF receiver because when using a LNA, noises can reduce the gain by the amplifier when the noise of the amplifier is received directly from received signal. The low noise amplifier have designed to get the better performance by following the requirement in this new era consists of high gain, low noise figure, lower power consumption, small chip area, low cost and good input and output matching. Besides that, this work represents an LNA schematic consists of three stages which is common gate amplifier, common drain amplifier and active inductor. Common gate and common drain is used for input and output stages in every LNA. It is also used for excellent input and output matching and has a potential to get a lower noise. While, for active inductor, is used to obtain the lower power consumption and to reduce the chip size in layout design. LNA achieved the best performance with a simulated gain of 14.7dB, extremely lower power consumption of 0.8mW, noise figure of 7dB and small chip area of 0.26mm². The design is implemented by using the CADENCE software with the latest technology of 0.13μm.

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