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A Feature-Assisted Hybrid Space Mapping Method for Q-Factor and Frequency Accuracy Optimization of Oscillator

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

This letter proposes a novel feature-assisted hybrid space mapping (FAHSM) method to accelerate the optimization of frequency accuracy and quality factor(Q) in a cross-coupled negative-Gm oscillator. The functional partitioning based on circuit features is employed for the full exploitation of the advantages of the space mapping (SM) algorithm. A 2.4-GHz cross-coupled negative-Gm oscillator is implemented on an FR4 board, demonstrating the effectiveness of the FAHSM. © 2026 IEEE.
Original languageEnglish
JournalIEEE Microwave and Wireless Technology Letters
Online published2 Jul 2026
DOIs
Publication statusOnline published - 2 Jul 2026

Funding

This work was supported in part by the Start-Up Grant for Professor (SGP)-CityU SGP, City University of Hong Kong, under Grant 9380170.

Research Keywords

  • Cross-coupled negative-Gm oscillator
  • feature-assisted hybrid space mapping (FAHSM)
  • frequency accuracy
  • functional partitioning
  • quality factor (Q)
  • space mapping (SM)

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