Publication detail

Influence of Wall Losses on Energy Flow Center Velocity of Pulses in Waveguides

KLAPKA, J.

Original Title

Influence of Wall Losses on Energy Flow Center Velocity of Pulses in Waveguides

Type

journal article - other

Language

English

Original Abstract

A rectangular carrier pulse is studied under the assumption of the propagation of a pure basic mode in a circular waveguide with low wall losses. An analytical expression of the electromagnetic field of an output pulse and an analytical expression of, the velocity with which the temporal center of gravity of the axial component of the Poynting vector of a pulse is traveling in a waveguide were derived for a not very high ratio of the input-pulse carrier frequency to the cutoff frequency of the given mode. A dependence is found of the above velocity on the wall losses, on the distance from the source, and on the duration time of the input pulse. The relation is found between the above velocity and the instantaneous phase velocity in the above center of gravity. The results obtained can be of importance in nanosecond pulse technique or for long-distance transfer of the pulses.

Keywords

Cutoff frequency , EMP radiation effects , Electromagnetic analysis , Electromagnetic fields , Electromagnetic pulse propagation , Electromagnetic waveguides , Centre of Gravity of Pulse, Propagation losses, Rectangular waveguides , Group Velocity of Pulse

Authors

KLAPKA, J.

Released

1. 10. 1970

Publisher

IEEE

Location

New York

ISBN

0018-9480

Periodical

IEEE Transactions on Microwave Theory and Techniques

Year of study

18

Number

10

State

United States of America

Pages from

689

Pages to

696

Pages count

8

URL

http://dx.doi.org/10.1109/TMTT.1970.1127331

BibTex

@article{BUT43003,
  author="Jindřich {Klapka}",
  title="Influence of Wall Losses on Energy Flow Center Velocity of Pulses in Waveguides",
  journal="IEEE Transactions on Microwave Theory and Techniques",
  year="1970",
  volume="18",
  number="10",
  pages="689--696",
  doi="10.1109/TMTT.1970.1127331",
  issn="0018-9480",
  url="http://dx.doi.org/10.1109/TMTT.1970.1127331"
}