A 22.5~28.5 -GHz Low-Amplitude-Variation Low-Phase-Error Hybrid Phase Shifter Using Flatness Enhancement Techniques for 5G NR in 40-nm CMOS

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

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-04-23 DOI:10.1109/TCSII.2025.3563519

Shiping Zheng;Yun Wang;Ziyang Deng;Chen Jiang;Hongtao Xu

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引用次数: 0

Abstract

This brief presents a hybrid phase shifter (PS) that integrates a three-stage switch-type phase shifter (STPS) and a one-stage reflect-type phase shifter (RTPS). The STPS utilizes a flatness-enhanced

$\pi $

-network topology to reduce phase error and insertion loss (IL) variation by eliminating feedback and resonant capacitors. The RTPS enables continuous phase shifting with a 4-bit capacitor array and varactor. The proposed hybrid PS achieves an IL variation of ±0.7 dB and an RMS phase error of 0.3° to 1.2° in the

$22.5\sim 28$

.5 GHz range. Compared to existing designs, the hybrid PS offers superior performance in phase accuracy, IL variation, and area efficiency, with a compact area of

$151\times 342~\mathrm {\mu } m^{2}$

, fabricated using standard 40nm CMOS technology.

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基于平面度增强技术的22.5~28.5 ghz低振幅变化低相位误差混合移相器，用于40nm CMOS下的5G NR

本文介绍了一种混合移相器（PS），它集成了三级开关式移相器（STPS）和一级反射式移相器（RTPS）。STPS采用平坦度增强的$\pi $网络拓扑结构，通过消除反馈和谐振电容来减少相位误差和插入损耗（IL）变化。RTPS通过4位电容阵列和变容器实现连续相移。该混合PS在$22.5\sim 28$ .5 GHz范围内实现了±0.7 dB的IL变化和0.3°至1.2°的均方根相位误差。与现有设计相比，混合PS在相位精度、IL变化和面积效率方面具有卓越的性能，其紧凑的面积为$151\times 342~\mathrm {\mu } m^{2}$，采用标准的40nm CMOS技术制造。

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.