A Compact V-Band Quad-Core VCO With Coupling-Coexistence and Dual-Filtering Techniques

IF 4.6 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI:10.1109/TCSII.2026.3651531

Junyuan Tu;Kaiming Zhong;Yongchun Li;Shuai Deng;Jiasheng Liang;Ruilong Yuan;Hongli He;Xiang Yi;Haoshen Zhu

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引用次数: 0

Abstract

This brief proposes a compact and low phase noise (PN)

$V$

-band quad-core voltage-controlled oscillator (VCO) in a 28-nm CMOS technology, capable of extracting third-harmonic frequencies for

$D$

-band integrated sensing and communication (ISAC) systems. Coupling-coexistence technique based on a tri-coupled transformer and dual-filtering technique enhance PN without additional area. A compact snowflake geometry topology is proposed, employing both inductor-sharing and mode-rejection techniques. The measured quad-core VCO tunes from 49.8 to 53.9 GHz, achieving -94.2 dBc/Hz and -121.1 dBc/Hz optimal phase noise (PN) at 1 MHz and 10 MHz offset, respectively, at 53.6 GHz carrier. The design also achieves the comparable area and power consumption of a single-core oscillator, combined with the PN performance advantages of multi-core oscillators, achieving a high FoM_A of -200.1 dBc/Hz.

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采用耦合共存和双滤波技术的紧凑型v波段四核压控振荡器

本文提出了一种采用28纳米CMOS技术的紧凑低相位噪声（PN） V波段四核压控振荡器（VCO），能够为D波段集成传感和通信（ISAC）系统提取三次谐波频率。基于三耦合变压器的耦合共存技术和双滤波技术在不增加面积的情况下提高了PN。提出了一种紧凑的雪花几何拓扑结构，采用电感共享和模抑制技术。测量的四核VCO在49.8至53.9 GHz范围内调谐，在53.6 GHz载波下，分别在1 MHz和10 MHz偏移量下实现-94.2 dBc/Hz和-121.1 dBc/Hz的最佳相位噪声（PN）。该设计还实现了与单核振荡器相当的面积和功耗，结合多核振荡器的PN性能优势，实现了-200.1 dBc/Hz的高FoMA。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.