Bypassing Rozanov's bound for short-time pulses

Chen Firestein, Amir Shlivinski, Yakir Hadad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-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 languageEnglish
Title of host publication2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2032-2033
Number of pages2
ISBN (Electronic)9781728146706
DOIs
StatePublished - 1 Jan 2021
Event2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Singapore, Singapore
Duration: 4 Dec 202110 Dec 2021

Publication series

Name2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021 - Proceedings

Conference

Conference2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021
Country/TerritorySingapore
CitySingapore
Period4/12/2110/12/21

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

Fingerprint

Dive into the research topics of 'Bypassing Rozanov's bound for short-time pulses'. Together they form a unique fingerprint.

Cite this