期刊
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
卷 67, 期 11, 页码 4450-4464出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMTT.2019.2938943
关键词
CMOS; low phase noise (PN); mm-wave voltage-controlled oscillator (VCO); transformer-based tank; wide tuning range (TR)
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Intel
In this article, we present a circuit technique to design a wide tuning range (TR) voltage-controlled oscillator (VCO). The employed technique extends the TR with a minimal adverse effect on the phase noise (PN). In this context, a switchable triple-coupled transformer, implemented utilizing the topmost three metal layers of the process, is proposed to achieve a wide TR and a low PN. In the proposed configuration, the mutual coupling between the loads is increased while canceling the negative effects of the switches on the transformer performance. Depending on the possible states of the switches used in the secondary and tertiary coils, four overlapping frequency sub-bands are introduced. An extensive set of analysis is provided to support the idea. As a proof-of-concept, a 55-GHz VCO is implemented in a 65-nm CMOS process. Based on the measurement results, the VCO achieves an average PN of -111.9 dBc/Hz at 10-MHz offset over the entire frequency range and a TR of similar to 18%, from 50.1 to 59.8 GHz, exhibiting a figure of merit incorporating the TR (FOM $_{T}$ ) of -184 dBc/Hz at 10 MHz. The VCO core consumes 6.2 mW from a 1-V supply and, excluding the pads, occupies a compact silicon area of 0.06 mm(2).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据