A 24 GHz High Frequency-Sweep Linearity FMCW Signal Generator with Floating-Shield Distributed Metal Capacitor Bank

Jianfei Xu,Na Yan,Sichen Yu,Lei Ma,Dashan Pan,Xiaoyang Zeng,Hao Min

IEEE Microwave and Wireless Components Letters（2017）

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摘要

A 24 GHz FMCW generator based on ADPLL was implemented in this work. Two-point modulation technology was used to achieve high sweep linearity. Meanwhile, a floating shield distributed metal capacitor bank was proposed to provide high frequency-sweep linearity DCO. By using these technologies, the FMCW generator's frequency error can be controlled as small as 60 kHzrms when 180 MHz frequency was sw...

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关键词

Frequency modulation,Phase locked loops,Linearity,Generators,Monte Carlo methods,Metals

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