Detail publikačního výsledku

Time-Domain Electromagnetic Leaky Waves

ŠTUMPF, M.; GU, J.; LAGER, I.

Original Title

Time-Domain Electromagnetic Leaky Waves

English Title

Time-Domain Electromagnetic Leaky Waves

Type

WoS Article

Original Abstract

A causality preserving interpretation of the electromagnetic (EM) leaky-wave (LW) propagation in space and time is proposed for the first time. The Cagniard-deHoop (CdH) joint transform technique is applied for elucidating the relation between time-domain (TD) head waves (HWs), body waves (BWs), Cherenkov wave effects, and LWs. It is conjectured that the LW phenomenon in the TD is associated with a local maximum in the observed signal that occurs between the arrivals of the HW and BW constituents. A quantitative analysis that enables the space-time localization of the LW effect is performed theoretically and, then, illustrated via representative examples including the pulsed EM radiation from both a line source above a dielectric half-space, and narrow-slot antennas.

English abstract

A causality preserving interpretation of the electromagnetic (EM) leaky-wave (LW) propagation in space and time is proposed for the first time. The Cagniard-deHoop (CdH) joint transform technique is applied for elucidating the relation between time-domain (TD) head waves (HWs), body waves (BWs), Cherenkov wave effects, and LWs. It is conjectured that the LW phenomenon in the TD is associated with a local maximum in the observed signal that occurs between the arrivals of the HW and BW constituents. A quantitative analysis that enables the space-time localization of the LW effect is performed theoretically and, then, illustrated via representative examples including the pulsed EM radiation from both a line source above a dielectric half-space, and narrow-slot antennas.

Keywords

time-domain leaky wave; body wave; Cagniard-deHoop technique; Cherenkov radiation; head waves; time-domain analysis

Key words in English

time-domain leaky wave; body wave; Cagniard-deHoop technique; Cherenkov radiation; head waves; time-domain analysis

Authors

ŠTUMPF, M.; GU, J.; LAGER, I.

Released

02.03.2023

Publisher

IEEE AP Society

Location

Piscataway, NJ, USA

ISBN

1558-2221

Periodical

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

Volume

71

Number

4

State

United States of America

Pages from

3382

Pages to

3392

Pages count

11

URL

https://ieeexplore.ieee.org/document/10058143

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT183580,
  author="ŠTUMPF, M. and GU, J. and LAGER, I.",
  title="Time-Domain Electromagnetic Leaky Waves",
  journal="IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION",
  year="2023",
  volume="71",
  number="4",
  pages="3382--3392",
  doi="10.1109/TAP.2023.3249358",
  issn="0018-926X",
  url="https://ieeexplore.ieee.org/document/10058143"
}