Design of Inductively Degenerated 2.5 GHz LNA Using 0.13μm Technology.

Low Noise Amplifier (LNA) is an electronic amplifier used to amplify very weak signals. Low noise amplifiers are the main component in the receiving end of the communication systems .In a communication system the wanted input signal is weak and the main function of LNA is to amplify the signal without adding noise to it. LNA is often located very close to the antenna, so that losses in the feed line become less critical. In this paper, the design of a Single-Ended LNA operating at 2.5GHz using 0.13μm technology is explained. The tools used for design the single-ended design is Advanced Design System (ADS 20011.10) for simulation. This design and implementation is based on inductively degenerator cascode type. The results show a gain of 24.521 dB, noise figure of 2.787dB and a stability factor of 9.24