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

作者：Zhu, Anjie; Wang, Chun; Xu, Kuiwen; Wang, Zhiyu; Ye, Dexin; Sun, Yongzhi; Qiao, Shan; Li, Changzhi; Ran, Lixin^*

来源：Microwave and Optical Technology Letters, 2017, 59(8): 2045-2048.

DOI：10.1002/mop.30665

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

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.

• 出版日期2017-8
• 单位浙江大学