ISSN: 2265-6294

An Inductor Less Low Power Low Noise Amplifier for Wireless Applications

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P. Ramakrishna, B. Akhil, B. Srikanth, S. Pothalaiah

Abstract

Low Noise Amplifiers has been used in various applications of cellular telephones, GPS receivers, wireless LANs (Wi-Fi), and satellite communications. LNA represents a basic building block of modern communication systems, it constitutes a part of RF Front-end module and a key block in a receiver section. In practical systems, such as cellular phones, the received signal is very low and must be amplified before demodulation. However, amplifier add noise to the signal they boost and when amplifying a very low-level signal, The amplifier noise may swamp the signal itself. To reduce the noise from signal and to get the amplified signal, LNA is the best solution. LNA should meet simultaneously several specifications such as maximum gain with minimum noise figure. These Low Noise Amplifiers may have inductor embedded which would cause large requirement of silicon area.

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