Non-Foster immittance observed in the full-range frequency response

Anjie Zhu, Chun Wang, Kuiwen Xu, Zhiyu Wang, Dexin Ye, Yongzhi Sun, Shan Qiao, Changzhi Li, Lixin Ran

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate a non-Foster element implemented with a radio-frequency operational amplifier theoretically and experimentally, showing that its full-range frequency response exhibits an inverted Lorentzian resonance, and thus a high-frequency non-Foster response can be observed on the right side of the resonance region. This can be used to overcome the technical difficulty in achieving high-frequency non-Foster elements.

Original languageEnglish
Pages (from-to)2045-2048
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume59
Issue number8
DOIs
StatePublished - Aug 2017

Keywords

  • Kramers-Kronig relations
  • active device
  • inverted Lorentzian resonance
  • non-Foster

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