A Method for Optimizing Chirp Linearity of Frequency Modulated Continuous Wave Signal Source Based on Continuous Frequency Step Analysis

Sheng Sun; Leilei Huang; Chunqi Shi; Runxi Zhang

doi:10.12450/j.gtdzx.202505006

A Method for Optimizing Chirp Linearity of Frequency Modulated Continuous Wave Signal Source Based on Continuous Frequency Step Analysis

投稿的翻译标题: 一种基于连续频率阶跃分析的FMCW信号源啁啾线性度优化方法

Sheng Sun
, Leilei Huang
, Chunqi Shi^*
, Runxi Zhang

^*此作品的通讯作者

信息与电子工程学院（集成电路科学与工程学院）

East China Normal University

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

A method for optimizing chirp linearity of frequency-modulated continuous wave （FMCW） signal source based on continuous frequency step analysis was presented in this paper. It analyzed the relationship between the PLL loop bandwidth and the chirp slope， along with the effects of frequency step granularity variation on RMS FM error across the three radar modes： long-range radar， medium-range radar， and short-range radar. Guided by the proposed optimization model， an FMCW signal source is designed in a 55 nm CMOS process， occupying an area of 1.6 mm² and consuming power of 178.4 mW. The prototype achieves a chirp bandwidth of 5.4 GHz and RMS FM errors of 152.7 kHz， 167 kHz， and 201.3 kHz with the chirp slopes being 13.2 MHz/μs， 22 MHz/μs， and 44 MHz/μs， respectively.

投稿的翻译标题	一种基于连续频率阶跃分析的FMCW信号源啁啾线性度优化方法
源语言	英语
期刊论文编号	050204
期刊	Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics
卷	45
期	5
DOI	https://doi.org/10.12450/j.gtdzx.202505006
出版状态	已出版 - 25 10月 2025

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10.12450/j.gtdzx.202505006

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title = "A Method for Optimizing Chirp Linearity of Frequency Modulated Continuous Wave Signal Source Based on Continuous Frequency Step Analysis",

abstract = "A method for optimizing chirp linearity of frequency-modulated continuous wave （FMCW） signal source based on continuous frequency step analysis was presented in this paper. It analyzed the relationship between the PLL loop bandwidth and the chirp slope， along with the effects of frequency step granularity variation on RMS FM error across the three radar modes： long-range radar， medium-range radar， and short-range radar. Guided by the proposed optimization model， an FMCW signal source is designed in a 55 nm CMOS process， occupying an area of 1.6 mm2 and consuming power of 178.4 mW. The prototype achieves a chirp bandwidth of 5.4 GHz and RMS FM errors of 152.7 kHz， 167 kHz， and 201.3 kHz with the chirp slopes being 13.2 MHz/μs， 22 MHz/μs， and 44 MHz/μs， respectively.",

author = "Sheng Sun and Leilei Huang and Chunqi Shi and Runxi Zhang",

note = "Publisher Copyright: {\textcopyright} 2025, Research Progress of Solid State Electronics. All right resevered.",

year = "2025",

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T1 - A Method for Optimizing Chirp Linearity of Frequency Modulated Continuous Wave Signal Source Based on Continuous Frequency Step Analysis

AU - Sun, Sheng

AU - Huang, Leilei

AU - Shi, Chunqi

AU - Zhang, Runxi

PY - 2025/10/25

Y1 - 2025/10/25

N2 - A method for optimizing chirp linearity of frequency-modulated continuous wave （FMCW） signal source based on continuous frequency step analysis was presented in this paper. It analyzed the relationship between the PLL loop bandwidth and the chirp slope， along with the effects of frequency step granularity variation on RMS FM error across the three radar modes： long-range radar， medium-range radar， and short-range radar. Guided by the proposed optimization model， an FMCW signal source is designed in a 55 nm CMOS process， occupying an area of 1.6 mm2 and consuming power of 178.4 mW. The prototype achieves a chirp bandwidth of 5.4 GHz and RMS FM errors of 152.7 kHz， 167 kHz， and 201.3 kHz with the chirp slopes being 13.2 MHz/μs， 22 MHz/μs， and 44 MHz/μs， respectively.

AB - A method for optimizing chirp linearity of frequency-modulated continuous wave （FMCW） signal source based on continuous frequency step analysis was presented in this paper. It analyzed the relationship between the PLL loop bandwidth and the chirp slope， along with the effects of frequency step granularity variation on RMS FM error across the three radar modes： long-range radar， medium-range radar， and short-range radar. Guided by the proposed optimization model， an FMCW signal source is designed in a 55 nm CMOS process， occupying an area of 1.6 mm2 and consuming power of 178.4 mW. The prototype achieves a chirp bandwidth of 5.4 GHz and RMS FM errors of 152.7 kHz， 167 kHz， and 201.3 kHz with the chirp slopes being 13.2 MHz/μs， 22 MHz/μs， and 44 MHz/μs， respectively.

UR - https://www.scopus.com/pages/publications/105021426290

U2 - 10.12450/j.gtdzx.202505006

DO - 10.12450/j.gtdzx.202505006

M3 - 文章

AN - SCOPUS:105021426290

SN - 1000-3819

VL - 45

JO - Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics

JF - Guti Dianzixue Yanjiu Yu Jinzhan/Research and Progress of Solid State Electronics

IS - 5

M1 - 050204

ER -

A Method for Optimizing Chirp Linearity of Frequency Modulated Continuous Wave Signal Source Based on Continuous Frequency Step Analysis

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