A 5.7mW@0.55V-to-50mW@0.9V Deeply Power-Scalable Reconfigurable Series-Resonance/Class-F VCO with Mutual-Inductance Self-Cancellation and Hybrid 8-Shaped Coupling Techniques

Juntao Lan; Wei Deng; Haikun Jia; Shiwei Zhang; Zhihua Wang; Baoyong Chi

doi:10.1109/isscc49663.2026.11409304

A 5.7mW@0.55V-to-50mW@0.9V Deeply Power-Scalable Reconfigurable Series-Resonance/Class-F VCO with Mutual-Inductance Self-Cancellation and Hybrid 8-Shaped Coupling Techniques

Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference 2026

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Authors: Juntao Lan, Wei Deng, Haikun Jia, Shiwei Zhang, Zhihua Wang, Baoyong Chi

DOI: 10.1109/isscc49663.2026.11409304

Cited by: 0

References: 7

Abstract

This work presents a 28nm deeply power-scalable reconfigurable series-resonance/ClassF VCO with mutual-inductance self-cancellation and hybrid 8-shaped coupling techniques, achieving power scalability from 5.7 to 93.1 mW. By switching between parallel-resonance (Class-F) and series-resonance modes, the VCO achieves −149 dBc/Hz PN and 192.8 dBc/Hz FoM at a 10 MHz offset. This design enables flexible PN-power scalability for Wi-Fi 7, IoT, and wearable devices.

Fields of Study & Subjects

Radio Frequency Integrated Circuit Design Advancements in PLL and VCO Technologies Analog and Mixed-Signal Circuit Design

Publication details

Journal / source: Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
Pages: 222–224
Publication date: 15 February 2026
Language: EN

References 7