A 40-GHz 4-Bit Digitally Controlled VGA with Low Phase Variation Using 65-nm CMOS Process

Jeng Han Tsai*, Chia Lung Lin

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

A 40-GHz variable gain amplifier (VGA) with 4-bit digital gain control and low phase variation is designed and fabricated on the 65-nm CMOS process. The digital gain control mechanism is achieved using the presented digital version current steering topology. The measured gain of the VGA is between 22 and 6 dB at 40 GHz with 16 different linear-in-decibel gain states. Using the proposed two-stage digital version current steering VGA phase compensation technique, the measured phase variation is 3.18° within a 16-dB gain control range (GCR) and the root mean square (rms) phase error is 0.89° at 40 GHz.

原文英語
文章編號8856253
頁(從 - 到)729-732
頁數4
期刊IEEE Microwave and Wireless Components Letters
29
發行號11
DOIs
出版狀態已發佈 - 2019 十一月

ASJC Scopus subject areas

  • 凝聚態物理學
  • 電氣與電子工程

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