Bypassing Rozanov's bound for short-time pulses

Chen Firestein; Amir Shlivinski; Yakir Hadad

doi:10.1109/APS/URSI47566.2021.9703862

Bypassing Rozanov's bound for short-time pulses

Chen Firestein, Amir Shlivinski, Yakir Hadad

School of Electrical Engineering

Ben-Gurion University of the Negev

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Here, we explore the scattering and absorption efficiency of a short-time pulsed wave that impinges on an absorbing layer that consists of a time-varying layer that is backed by an ideal conductor (PEC). The analysis is done by solving in-time the Green's function of the TL equivalent of the layered system. Its numerical evaluation is accelerated by using the fact that its only contribution comes from discrete spectrum waves, and thus any spectral integration can be replaced by an efficient summation. Due to the switching process the absorption is enhanced in comparison to Rozanov's bound that was derived for linear and time-invariant (LTI) wave systems. We demonstrate the better absorption efficiency for both ultra wideband (UWB) and quasi-monochromatic pulses.

Original language	English
Title of host publication	2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2032-2033
Number of pages	2
ISBN (Electronic)	9781728146706
DOIs	https://doi.org/10.1109/APS/URSI47566.2021.9703862
State	Published - 2021
Event	2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Singapore, Singapore Duration: 4 Dec 2021 → 10 Dec 2021

Publication series

Name	2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings

Conference

Conference	2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021
Country/Territory	Singapore
City	Singapore
Period	4/12/21 → 10/12/21

Funding

Funders	Funder number
Biotech and Chemo-tech Scholarships
Israel Science Foundation	1353/19

Access to Document

10.1109/APS/URSI47566.2021.9703862

Cite this

Firestein, C., Shlivinski, A., & Hadad, Y. (2021). Bypassing Rozanov's bound for short-time pulses. In 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings (pp. 2032-2033). (2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APS/URSI47566.2021.9703862

Firestein, Chen ; Shlivinski, Amir ; Hadad, Yakir. / Bypassing Rozanov's bound for short-time pulses. 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 2032-2033 (2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings).

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abstract = "Here, we explore the scattering and absorption efficiency of a short-time pulsed wave that impinges on an absorbing layer that consists of a time-varying layer that is backed by an ideal conductor (PEC). The analysis is done by solving in-time the Green's function of the TL equivalent of the layered system. Its numerical evaluation is accelerated by using the fact that its only contribution comes from discrete spectrum waves, and thus any spectral integration can be replaced by an efficient summation. Due to the switching process the absorption is enhanced in comparison to Rozanov's bound that was derived for linear and time-invariant (LTI) wave systems. We demonstrate the better absorption efficiency for both ultra wideband (UWB) and quasi-monochromatic pulses.",

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Firestein, C, Shlivinski, A & Hadad, Y 2021, Bypassing Rozanov's bound for short-time pulses. in 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings. 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 2032-2033, 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021, Singapore, Singapore, 4/12/21. https://doi.org/10.1109/APS/URSI47566.2021.9703862

Bypassing Rozanov's bound for short-time pulses. / Firestein, Chen; Shlivinski, Amir; Hadad, Yakir.
2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2021. p. 2032-2033 (2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Firestein C, Shlivinski A, Hadad Y. Bypassing Rozanov's bound for short-time pulses. In 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2021. p. 2032-2033. (2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings). doi: 10.1109/APS/URSI47566.2021.9703862

Bypassing Rozanov's bound for short-time pulses

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