Resonance

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A Real-Time Link-Adaptive 3-D Resonant Current-Mode Wireless Receiver With Self-Optimizing Control

A Real-Time Link-Adaptive 3-D Resonant Current-Mode Wireless Receiver With Self-Optimizing Control 150 150
Author(s): Jong-Hun Kim, Seung-Ju Lee, Seogyong Jeong, Yeon-Woo Jeong, Mun-Jung Cho, Hyuntak Jeon, Se-Un Shin

Abstract:

This article presents a 3-D resonant current-mode wireless power receiver (RCM 3D-Rx) with autonomous optimum resonance cycle ( $N_{\mathrm {OPT}}$ ) detection and real-time link adaptivity for implantable medical devices (IMDs). The proposed design integrates three orthogonally oriented receiver coils within a com pact 3-D-printed PA12 structure, enabling orientation-insensitive power transfer …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 3407 – 3419
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3637095
Publisher: IEEE

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Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope

Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope 150 150
Author(s): Longjie Zhong, Jinwen Zhang, Ling Wang, Wenfei Cao, Kangkang Cai, Tiegang Hu, Zhangming Zhu

Abstract:

The always-on drive loop with low power is a key enabler for intelligent inertial measurement unit (IMU). One of the key design challenges of the always-on drive loop is the trade-off between the always-on power consumption and the wake-up time. To meet this challenge, the burst-mode always-on drive loop composed …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3672969
Publisher: IEEE

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A Millimeter-Wave Standing-Wave Oscillator With Frequency-Specific Wave-Velocity Control Demonstrating Class-F Effects

A Millimeter-Wave Standing-Wave Oscillator With Frequency-Specific Wave-Velocity Control Demonstrating Class-F Effects 150 150
Author(s): Wei-Yu Lin, Jun-Chau Chien

Abstract:

Implementing dual-resonance class-F oscillators with transformer feedback beyond 60 GHz poses significant challenges due to the limited third-harmonic tank impedance when using small coils with low coupling factors. To address these limitations and leverage the phase noise advantages of class-F operation, this letter introduces a standing-wave oscillator (SWO) topology featuring an …

Published in: IEEE Solid-State Circuits Letters
Page(s): 181 – 184
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3578942
Publisher: IEEE

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