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A Wideband Low Power Low-Noise Amplifier in CMOS Technology

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4 Author(s)
Ali Meaamar ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Chirn Chye Boon ; Kiat Seng Yeo ; Manh Anh Do

A T-coil network can be implemented as a high order filter for bandwidth extension. This technique is incorporated into the design of the input matching and output peaking networks of a low-noise amplifier. The intrinsic capacitances within the transistors are exploited as a part of the wideband structure to extend the bandwidth. Using the proposed topology, a wideband low-noise amplifier with a bandwidth of 3-8 GHz, a maximum gain of 16.4 dB and noise figure of 2.9 dB (min) is achieved. The total power consumption of the wideband low-noise amplifier from the 1.8 V power supply is 3.9 mW. The prototype is fabricated in 0.18 ??m CMOS technology.

Published in:

IEEE Transactions on Circuits and Systems I: Regular Papers  (Volume:57 ,  Issue: 4 )