Design of Low Noise Amplifier for 802.16e

Abstract

This work deals with the designing of low noise amplifier for WiMAX 802.16e application considering 3.4–3.6 GHz frequency band with 3.5 GHz as the center frequency. The amplifier is designed using Pseudomorphic HEMT ATF—34143 of Avago Technologies with different stabilization techniques to improve the stability of the potentially unstable device. It is observed that the noise immunity is more in source inductor degenerative stabilized HEMT than in other techniques with the help of noise figure which is obtained as 0.635 dB for HEMT. The comparative analysis of the LNA design is discussed in this paper.