A 76-81 GHz CMOS mmW quadrature down-conversion mixer for automotive radar applications

被引：3

作者：

Rao, Shengyu ^{[1
]}

Shi, Chunqi ^{[1
]}

Zhang, Runxi ^{[1
]}

机构：

[1] East China Normal Univ, Inst Microelect Circuits & Syst, Shanghai 200241, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2020年 / 17卷 / 04期

关键词：

CMOS; mmW; transformer-based; G(m)-boosting; inter-stage network; cross-coupled transistors; bleed dynamic current; POWER-AMPLIFIER; TRANSCEIVER; GAIN; NOISE;

D O I：

10.1587/elex.17.20190740

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a mmW quadrature down-conversion mixer for 76-81 GHz automotive radar applications. A transformer-based g(m)-boosting method and a new cascode inter-stage network are proposed to improve the gain of preamplifier. A pair of cross-coupled transistors are exploited to bleed dynamic current into mixer core to reduce noise figure while utilizing its negative resistance to improve conversion gain. The mixer is implemented in a 55-nm CMOS process and the measurement results show that the BW-3dB is 5.5 GHz, the peak gain is 4.1 dB with <0.16 dB I/Q mismatch, the input P1dB is up to -6 dBm and the minimum noise figure (NFmin) is 19 dB while dissipating 40 mW of power. The achieved FOM is up to 0.02.

引用

页数：6

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