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A coupled-inductor dual-mode switched voltage-controlled oscillator using GaN-on-Si HEMT technology

  • National Tsing Hua University
  • Chang Gung University
  • Lunghwa University of Science and Technology

Research output: Contribution to journalJournal Article peer-review

1 Scopus citations

Abstract

A coupled-inductors dual-mode switch cross-coupled pair voltage-controlled oscillator (VCO) was presented, adopting GaN-on-Si high-electron-mobility transistor technology. The coupled inductors create two resonant frequencies that cover a wide frequency range. The two continuous bands were achieved by using coupled inductors, and the fine-tuning is controlled by varactors. The low and high bands of the VCO were 2.77–3.11 GHz and 3–3.28 GHz, in the Vc range between 10 and 17 V, respectively, which corresponds to a 16.7% (510 MHz) tuning range. The lowest phase noise was −123 dBc/Hz at an offset frequency of 1 MHz, and the highest output power was 17.7 dBm using a 7.5-V power supply.

Original languageEnglish
Pages (from-to)228-237
Number of pages10
JournalInternational Journal of Electronics
Volume104
Issue number2
DOIs
StatePublished - 01 02 2017

Bibliographical note

Publisher Copyright:
© 2016 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Coupled inductor
  • GaN HEMT on Si
  • VCO
  • output power
  • phase noise
  • tuning range

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