采用串联谐振反馈优化谐波输出功率的大功率270 ghz振荡器

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

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-03-12 DOI:10.1109/TCSII.2025.3550870

Abdul Qahir;Kyung-Sik Choi;Jong-Phil Hong;Sang-Gug Lee

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引用次数: 0

摘要

本文提出了一种大功率谐波振荡器拓扑结构，该拓扑结构采用串联LC谐振反馈网络，通过实现更大的晶体管尺寸和最小化共模输出电导，使振荡器在基频处的有效寄生电容最小化，同时增加二次谐波处的输出功率。采用28纳米CMOS技术实现的270 ghz振荡器在100 kHz、1 MHz和10 MHz偏置时的峰值输出功率为−3.2 dBm，峰值dc- rf效率为0.81%，相位噪声值分别为−56.8、−84.68和−90.12 dBc/Hz。

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High-Power 270-GHz Oscillator With Harmonic Output Power Optimization Using Series Resonance Feedback

This brief proposes a high-power harmonic oscillator topology that adopts a series LC resonant feedback network to minimize the effective parasitic capacitance of the oscillator at the fundamental frequency while increasing the output power at the second harmonic by enabling a larger transistor size and minimizing the common-mode output conductance. Implemented in the 28-nm CMOS technology, the proposed 270-GHz oscillator achieves a peak output power of −3.2 dBm, a peak dc-to-RF efficiency of 0.81% and phase noise values of −56.8, −84.68 and −90.12 dBc/Hz at 100 kHz, 1 MHz and 10 MHz offsets, respectively.

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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.