Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces

G. Ptitcyn; M. S. Mirmoosa; S. Hrabar; S. A. Tretyakov

doi:10.1109/Metamaterials54993.2022.9920851

Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces

G. Ptitcyn, M. S. Mirmoosa, S. Hrabar, S. A. Tretyakov

University of Zagreb

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

70 Downloads (Pure)

Abstract

It has been recently shown that non-Foster reactances can be realized using time-varying reactive elements. This approach is beneficial in terms of practical realization and stability. Here we show that a time-varying capacitance can be in general used to mimic a static inductance, capacitance, or resistance having arbitrary values. Next, we analyze stability of a simple circuit that contains resistance and emulated negative capacitance and compare it with a circuit with an ideal non-Foster capacitance. Finally, we show an application of our theory to metasurfaces, and, as an example, we indicate that it is possible to create invisible metasurfaces.

Original language	English
Title of host publication	2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022
Publisher	IEEE
Pages	X347-X349
ISBN (Electronic)	978-1-6654-6584-7
DOIs	https://doi.org/10.1109/Metamaterials54993.2022.9920851
Publication status	Published - 2022
MoE publication type	A4 Conference publication
Event	International Congress on Artificial Materials for Novel Wave Phenomena - Università di Siena, Presidio Mattioli, Siena, Italy Duration: 12 Sept 2022 → 17 Sept 2022 Conference number: 16 https://congress2022.metamorphose-vi.org/

Conference

Conference	International Congress on Artificial Materials for Novel Wave Phenomena
Abbreviated title	METAMATERIALS
Country/Territory	Italy
City	Siena
Period	12/09/2022 → 17/09/2022
Internet address	https://congress2022.metamorphose-vi.org/

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10.1109/Metamaterials54993.2022.9920851

Metamaterials2022_non_FosterAccepted author manuscript, 232 KB

Cite this

@inproceedings{7beef61436684e2c94c4c3fb145d160e,

title = "Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces",

abstract = "It has been recently shown that non-Foster reactances can be realized using time-varying reactive elements. This approach is beneficial in terms of practical realization and stability. Here we show that a time-varying capacitance can be in general used to mimic a static inductance, capacitance, or resistance having arbitrary values. Next, we analyze stability of a simple circuit that contains resistance and emulated negative capacitance and compare it with a circuit with an ideal non-Foster capacitance. Finally, we show an application of our theory to metasurfaces, and, as an example, we indicate that it is possible to create invisible metasurfaces.",

author = "G. Ptitcyn and Mirmoosa, {M. S.} and S. Hrabar and Tretyakov, {S. A.}",

note = "Funding Information: ACKNOWLEDGEMENT: The authors would like to thank Dr. Xuchen Wang for his help with the numerical simulations done by COMSOL Multiphysics software. This work was supported in part by the Academy of Finland under grant 330260. Publisher Copyright: {\textcopyright} 2022 IEEE.; International Congress on Artificial Materials for Novel Wave Phenomena, METAMATERIALS ; Conference date: 12-09-2022 Through 17-09-2022",

year = "2022",

doi = "10.1109/Metamaterials54993.2022.9920851",

language = "English",

pages = "X347--X349",

booktitle = "2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022",

publisher = "IEEE",

address = "United States",

url = "https://congress2022.metamorphose-vi.org/",

}

Ptitcyn, G, Mirmoosa, MS, Hrabar, S & Tretyakov, SA 2022, Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces. in 2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022. IEEE, pp. X347-X349, International Congress on Artificial Materials for Novel Wave Phenomena, Siena, Italy, 12/09/2022. https://doi.org/10.1109/Metamaterials54993.2022.9920851

Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces. / Ptitcyn, G.; Mirmoosa, M. S.; Hrabar, S. et al.
2022 16th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2022. IEEE, 2022. p. X347-X349.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Tretyakov, S. A.

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N2 - It has been recently shown that non-Foster reactances can be realized using time-varying reactive elements. This approach is beneficial in terms of practical realization and stability. Here we show that a time-varying capacitance can be in general used to mimic a static inductance, capacitance, or resistance having arbitrary values. Next, we analyze stability of a simple circuit that contains resistance and emulated negative capacitance and compare it with a circuit with an ideal non-Foster capacitance. Finally, we show an application of our theory to metasurfaces, and, as an example, we indicate that it is possible to create invisible metasurfaces.

AB - It has been recently shown that non-Foster reactances can be realized using time-varying reactive elements. This approach is beneficial in terms of practical realization and stability. Here we show that a time-varying capacitance can be in general used to mimic a static inductance, capacitance, or resistance having arbitrary values. Next, we analyze stability of a simple circuit that contains resistance and emulated negative capacitance and compare it with a circuit with an ideal non-Foster capacitance. Finally, we show an application of our theory to metasurfaces, and, as an example, we indicate that it is possible to create invisible metasurfaces.

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PB - IEEE

T2 - International Congress on Artificial Materials for Novel Wave Phenomena

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ER -

Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces

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TIME: Engineering electromagnetic response of materials using time-modulated components

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Time-varying Elements for Realization of Stable Non-Foster Circuits and Metasurfaces

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TIME: Engineering electromagnetic response of materials using time-modulated components

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