A 19.6–39.4 GHz Broadband Low Noise Amplifier Based on Triple-Coupled Technique and T-Coil Network in 65-nm CMOS

Autor: Jiayue Wan, Xiao Li, Fang Han, Quanwen Qi, Xuzhi Liu, Zhiming Chen
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Electronics; Volume 11; Issue 12; Pages: 1833
ISSN: 2079-9292
DOI: 10.3390/electronics11121833
Popis: This paper presents a differential 19.6–39.4 GHz broadband low-noise amplifier (LNA) in 65-nm CMOS technology. The LNA consists of two cascode stage and one common-source stage. To achieve a wide bandwidth and low average noise figure, inter-stage peak-gain distribution technique and transformer-based triple-coupled technique are developed. Besides, a new compact T-coil-based network is proposed to neutralize the parasitic capacitors and enlarge the gain. The measure results show that the 3-dB bandwidth is from 19.6 to 39.4 GHz, the maximum gain is 23.5 dB, and the noise figure (NF) is from 3.7 to 5.8 dB. The dc power comsumption is 46 mW with 1V supply voltage. The input P1dB is −17 dBm at 30 GHz.
Databáze: OpenAIRE