A 12.9-38.6-GHz CMOS LNA With Triple-Coupled Transformer-Based Input Matching Technique

Bihong Zhang; Hongyu Mao; Xiaolong Liu

10.1109/ISCAS46773.2023.10182098

2023

0271-4302

978-1-6654-5110-9

2023 IEEE International Symposium on Circuits and Systems (ISCAS)

2023-May

1-4

21-25 May 2023

Monterey, CA, USA

This paper presents a wideband millimeter-wave low-noise amplifier (LNA) in a 65-nm CMOS process. A triple-coupled transformer-based input matching technique is proposed to enhance the input power matching bandwidth. In addition, by leveraging a transformer between the two-stage common source (CS) amplifiers, the noise figure (NF) is reduced while the transconductance of the second stage is improved to extend the gain bandwidth. The proposed LNA is designed to achieve an ultra-wide 10-dB return loss bandwidth from 12.4 to 46.9 GHz. The effective input matching bandwidth is limited by the 3-dB gain bandwidth, which is from 12.9 to 38.6 GHz. It achieves a peak gain of 11.9 dB and a minimum NF of 3.2 dB. The third-order input intercept point (IIP3) is −0.45 dBm at 30 GHz. The proposed LNA occupies a core area of 0.18 mm2 and consumes only 5.1 mW.

CMOS low-noise amplifier (LNA) wideband transformer millimeter-wave

第一

CPCI-S ; EI

WOS:001038214602154

20233314552397

Bandwidth ; Broadband amplifiers ; CMOS integrated circuits ; Millimeter waves ; Noise figure

Electromagnetic Waves:711 ; Amplifiers:713.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Information Theory and Signal Processing:716.1

IEEE

School of Microelectronics, Southern University of Science and Technology, Shenzhen, China

Bihong Zhang,Hongyu Mao,Xiaolong Liu. A 12.9-38.6-GHz CMOS LNA With Triple-Coupled Transformer-Based Input Matching Technique[C],2023:1-4.