A 5.4-7.4 GHz Ultra-Low Jitter Injection-Locked Frequency Tripler With 3rd Harmonic Current Boosting Input Buffer

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-08-20 DOI:10.1109/TCSII.2024.3446728

Sonam Sadhukhan;Arpan Thakkar;Pranav Kumar;Saurabh Saxena

{"title":"A 5.4-7.4 GHz Ultra-Low Jitter Injection-Locked Frequency Tripler With 3rd Harmonic Current Boosting Input Buffer","authors":"Sonam Sadhukhan;Arpan Thakkar;Pranav Kumar;Saurabh Saxena","doi":"10.1109/TCSII.2024.3446728","DOIUrl":null,"url":null,"abstract":"We present a 5.4-to-7.4 GHz injection-locked frequency tripler (ILFT) with enhanced \n<inline-formula> <tex-math>$3^{rd}$ </tex-math></inline-formula>\n harmonic injection using collector-to-base transformer-coupled input buffer. Regenerative feedback in the input buffer using a collector-to-base coupled transformer provides up to 2x improvement in the locking range of the ILFT compared to a conventional ILFT. Fabricated in \n<inline-formula> <tex-math>$0.13~\\mu $ </tex-math></inline-formula>\n m BiCMOS technology, the tripler exhibits a jitter tracking bandwidth, \n<inline-formula> <tex-math>$\\omega _{JTB}$ </tex-math></inline-formula>\n of 20 MHz. Due to its optimal jitter tracking bandwidth, the tripler filters the input noise beyond the \n<inline-formula> <tex-math>$\\omega _{JTB}$ </tex-math></inline-formula>\n and effectively suppresses the free-running oscillator’s phase noise below \n<inline-formula> <tex-math>$\\omega _{JTB}$ </tex-math></inline-formula>\n. We achieve an output rms jitter of 33.6 fs for an input rms jitter of 68 fs over a bandwidth of [1k-100MHz]. The ILFT demonstrates a good sub-harmonic rejection ratio, SHRR of 51 dB and 48 dB for fundamental and second harmonic, respectively.","PeriodicalId":13101,"journal":{"name":"IEEE Transactions on Circuits and Systems II: Express Briefs","volume":"71 11","pages":"4693-4697"},"PeriodicalIF":4.0000,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Circuits and Systems II: Express Briefs","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10640163/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

We present a 5.4-to-7.4 GHz injection-locked frequency tripler (ILFT) with enhanced

$3^{rd}$

harmonic injection using collector-to-base transformer-coupled input buffer. Regenerative feedback in the input buffer using a collector-to-base coupled transformer provides up to 2x improvement in the locking range of the ILFT compared to a conventional ILFT. Fabricated in

$0.13~\mu $

m BiCMOS technology, the tripler exhibits a jitter tracking bandwidth,

$\omega _{JTB}$

of 20 MHz. Due to its optimal jitter tracking bandwidth, the tripler filters the input noise beyond the

$\omega _{JTB}$

and effectively suppresses the free-running oscillator’s phase noise below

$\omega _{JTB}$

. We achieve an output rms jitter of 33.6 fs for an input rms jitter of 68 fs over a bandwidth of [1k-100MHz]. The ILFT demonstrates a good sub-harmonic rejection ratio, SHRR of 51 dB and 48 dB for fundamental and second harmonic, respectively.

查看原文本刊更多论文

带三次谐波电流增强输入缓冲器的 5.4-7.4 GHz 超低抖动注入锁定频率三倍频器

我们提出了一种 5.4 至 7.4 GHz 注入锁定频率三倍频器 (ILFT)，利用集电极到基极变压器耦合输入缓冲器增强了 3^{rd}$ 谐波注入。在输入缓冲器中使用集电极到基极耦合变压器的再生反馈，使 ILFT 的锁定范围比传统 ILFT 提高了 2 倍。该三路分解器采用 0.13~\mu $ m BiCMOS 技术制造，抖动跟踪带宽为 20 MHz。由于具有最佳的抖动跟踪带宽，三路耦合器可以过滤超过 $\omega _{JTB}$ 的输入噪声，并有效抑制低于 $\omega _{JTB}$ 的自由运行振荡器相位噪声。在[1k-100MHz]带宽内，输入均方根抖动为 68 fs 时，输出均方根抖动为 33.6 fs。ILFT 具有良好的次谐波抑制比，基波和二次谐波的次谐波抑制比分别为 51 dB 和 48 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.