millimeter-Wave (mmW)

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A Compact Reconfigurable Dual-Path Dual-Band LNA for 5G NR FR2 Applications

A Compact Reconfigurable Dual-Path Dual-Band LNA for 5G NR FR2 Applications 150 150
Author(s): Pei Qin, Junyu Wu, Taotao Xu, Yongchun Li, Wenjie Feng, Quan Xue, Wenquan Che

Abstract:

This article presents a reconfigurable dual-path dual-band low noise amplifier (LNA) for fifth generation (5G) millimeter-wave (mmW) communications. A novel band-switching input matching architecture based on the cross-connected transistors is proposed to achieve optimal dual-band input matching and $g_{m}$ -boosting. This architecture allows the dual-band input transistors to share …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3661593
Publisher: IEEE

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A Ping-Pong Charge-Sharing Locking PLL With Implicit Reference Doubling and Simultaneous Frequency/Duty-Cycle Calibrations

A Ping-Pong Charge-Sharing Locking PLL With Implicit Reference Doubling and Simultaneous Frequency/Duty-Cycle Calibrations 150 150
Author(s): Sayan Kumar, Teerachot Siriburanon, Sumit Dash, Patchara Sawakewang, Shuja Andrabi, Jon Strange, Khurram Muhammad, Chih-Ming Hung, Robert Bogdan Staszewski

Abstract:

We propose a new ping-pong (PP) charge-sharing locking (CSL) phase-locked loop (PLL) architecture that enhances the strength of charge-injection into the oscillator’s LC-tank using complementary charge-sharing capacitors during both positive and negative halves of the reference clock, effectively achieving an implicit $2times $ reference frequency multiplication. The design includes a …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1368 – 1383
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3535888
Publisher: IEEE

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