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

Shengyu Rao; Chunqi Shi; Runxi Zhang

doi:10.1587/elex.17.20190740

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

Shengyu Rao, Chunqi Shi, Runxi Zhang^*

^*Corresponding author for this work

School of Communication and Electronic Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

This paper presents a mmW quadrature down-conversion mixer for 76-81 GHz automotive radar applications. A transformer-based gm-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 (NF_min) is 19 dB while dissipating 40mWof power. The achieved FOM is up to 0.02.

Original language	English
Journal	IEICE Electronics Express
Volume	17
Issue number	4
DOIs	https://doi.org/10.1587/elex.17.20190740
State	Published - 2020

Keywords

Bleed dynamic current
CMOS
Cross-coupled transistors
G-boosting
Inter-stage network
MmW
Transformer-based

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10.1587/elex.17.20190740

Cite this

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title = "A 76-81 GHz CMOS mmW quadrature down-conversion mixer for automotive radar applications",

abstract = "This paper presents a mmW quadrature down-conversion mixer for 76-81 GHz automotive radar applications. A transformer-based gm-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 40mWof power. The achieved FOM is up to 0.02.",

keywords = "Bleed dynamic current, CMOS, Cross-coupled transistors, G-boosting, Inter-stage network, MmW, Transformer-based",

author = "Shengyu Rao and Chunqi Shi and Runxi Zhang",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 The Institute of Electronics, Information and Communication Engineers.",

year = "2020",

doi = "10.1587/elex.17.20190740",

language = "英语",

volume = "17",

journal = "IEICE Electronics Express",

issn = "1349-2543",

publisher = "Institute of Electronics Information Communication Engineers",

number = "4",

}

TY - JOUR

T1 - A 76-81 GHz CMOS mmW quadrature down-conversion mixer for automotive radar applications

AU - Rao, Shengyu

AU - Shi, Chunqi

AU - Zhang, Runxi

PY - 2020

Y1 - 2020

N2 - This paper presents a mmW quadrature down-conversion mixer for 76-81 GHz automotive radar applications. A transformer-based gm-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 40mWof power. The achieved FOM is up to 0.02.

AB - This paper presents a mmW quadrature down-conversion mixer for 76-81 GHz automotive radar applications. A transformer-based gm-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 40mWof power. The achieved FOM is up to 0.02.

KW - Bleed dynamic current

KW - CMOS

KW - Cross-coupled transistors

KW - G-boosting

KW - Inter-stage network

KW - MmW

KW - Transformer-based

UR - https://www.scopus.com/pages/publications/85085841361

U2 - 10.1587/elex.17.20190740

DO - 10.1587/elex.17.20190740

M3 - 文章

AN - SCOPUS:85085841361

SN - 1349-2543

VL - 17

JO - IEICE Electronics Express

JF - IEICE Electronics Express

IS - 4

ER -

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

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Keywords

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