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Non‐Foster immittance observed in the full‐range frequency response
Author(s) -
Zhu Anjie,
Wang Chun,
Xu Kuiwen,
Wang Zhiyu,
Ye Dexin,
Sun Yongzhi,
Qiao Shan,
Li Changzhi,
Ran Lixin
Publication year - 2017
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30665
Subject(s) - immittance , frequency response , amplifier , range (aeronautics) , resonance (particle physics) , acoustics , electronic engineering , engineering , physics , electrical engineering , telecommunications , bandwidth (computing) , atomic physics , aerospace engineering
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.