TY - GEN
T1 - A 64.5-88 GHz coupling-concerned CMOS LNA with >10 dB Gain and 5 dB Minimum NF
AU - Zhang, Kaijuan
AU - Shi, Chunqi
AU - Chen, Guangsheng
AU - Chen, Jinghong
AU - Zhang, Runxi
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/8
Y1 - 2020/8
N2 - This paper presents a differential 64.5-88 GHz wideband low-noise amplifier (LNA) in a 55-nm CMOS technology. The LNA is consisted of two common-source (CS) stages and one cascode stage. To achieve a wide bandwidth (BW), an interstage coupling network scheme utilizing step-up transformers and co-optimizing the interstage transimpedance responses is developed. A new transformer-based dual-coupling (TBDC) gm-boosted topology is proposed to simultaneously achieve high gain and low noise. In addition, capacitive neutralization and common-gate-shorting (CGS) techniques are utilized to improve gain and stability. The LNA achieves a peak gain of 15 dB, a wideband gain of >10 dB over 64.5-88 GHz, a S11 of <-10 dB over 60-90 GHz, and a minimum noise figure of 5 dB, while consuming 72.7 mW power. The input PldB is -12.2 dBm at 70 GHz and -12.8 dBm at 80 GHz, respectively.
AB - This paper presents a differential 64.5-88 GHz wideband low-noise amplifier (LNA) in a 55-nm CMOS technology. The LNA is consisted of two common-source (CS) stages and one cascode stage. To achieve a wide bandwidth (BW), an interstage coupling network scheme utilizing step-up transformers and co-optimizing the interstage transimpedance responses is developed. A new transformer-based dual-coupling (TBDC) gm-boosted topology is proposed to simultaneously achieve high gain and low noise. In addition, capacitive neutralization and common-gate-shorting (CGS) techniques are utilized to improve gain and stability. The LNA achieves a peak gain of 15 dB, a wideband gain of >10 dB over 64.5-88 GHz, a S11 of <-10 dB over 60-90 GHz, and a minimum noise figure of 5 dB, while consuming 72.7 mW power. The input PldB is -12.2 dBm at 70 GHz and -12.8 dBm at 80 GHz, respectively.
KW - Capacitive neutralization
KW - Common-gate-shorting (CGS)
KW - Gm -boosted
KW - Interstage coupling network
KW - Low-noise amplifier
KW - Transformer-based dual-coupling (TBDC)
UR - https://www.scopus.com/pages/publications/85094207567
U2 - 10.1109/IMS30576.2020.9224000
DO - 10.1109/IMS30576.2020.9224000
M3 - 会议稿件
AN - SCOPUS:85094207567
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 337
EP - 340
BT - IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
Y2 - 4 August 2020 through 6 August 2020
ER -