Abstract
A two stage cascode Low Noise Amplifier (LNA) is designed in 130 nm SiGe HBT. The work focuses on achieving a low Noise Figure (NF), high linearity, and high gain for the LNA in the frequency band of 57.24 GHz-65.88 GHz to be operated in all the four channels of IEEE 802.11ad standard. A modified Derivative SuperPosition technique is used in the first stage of the cascaded LNA to improve the linearity of the circuit. Post layout Electromagnetic (EM) simulation results of the proposed LNA achieves a peak gain of 20.19dB at 59.5GHz, linearity (IIP3) of 2dBm at the maximum gain and also achieved a NF of 4.1dB - 4.8dB in the operating band of frequency. DC power consumption of the proposed circuit is 9.2mW from a supply voltage of 1.2V, with an area occupancy of 311μm×298μm.
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