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Design of a reconfigurable Low Noise Amplifier for IMT-A and UWB systems

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4 Author(s)
Xusheng Tang ; Commun. Res. Lab., Southeast Univ., Nanjing, China ; Fengyi Huang ; Youming Zhang ; Shengmeng Lin

A reconfigurable Low Noise Amplifier works on the bands of 4.2-4.8GHz IMT-A and 3.4-3.6GHz UWB is presented in this paper. The proposed LNA is based on inductive source degenerated cascade structure while switched capacitors and switched circuit are added to realize the dual-band operation. The simulation results show that, in the band of 3.4-3.6GHz, the NF is lower than 2.3dB, the gain is higher than 17dB, and in the band of 4.2-4.8GHz, the NF is lower than 2.6dB, the gain is higher than 19dB. According to the simulation results, the proposed LNA achieves dual-band operation, which proves the feasibility of the proposed topology. The LNA is fabricated in TSMC 0.13-μm process while consuming 15.4mA from a 1.2V supply.

Published in:

Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications (IMWS), 2012 IEEE MTT-S International

Date of Conference:

18-20 Sept. 2012

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