A Switched Tunable Inductor Based on Magnetic Flux Linkage Modification

You Da Chen, Albert Chin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


An on-chip switched tunable inductor based on magnetic flux linkage modification is proposed. The magnetic flux linkage was adjusted through an auxiliary coil that was connected to a flip-flop in parallel with a MOS switch. The inductance was monotonically tuned by applying MOS gate voltages, which had a broad tuning range of 1.32-2.03 nH (42.4%) at 8 GHz. A high quality factor of 61.6 at 8 GHz was achieved because the flip-flop provided negative resistance.

Original languageEnglish
Article number9259051
Pages (from-to)6-9
Number of pages4
JournalIeee Electron Device Letters
Issue number1
StatePublished - Jan 2021


  • microwave communication
  • RF IC
  • Spiral inductor
  • tunable inductor
  • tuning range


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