How fast can radio messages be transmitted?

Author

Adamski, Miroslaw E. ; Abramowicz, Adam ; Faber, Marek T.

Author_Institution

Inst. of Electron. Fundamentals, Warsaw Univ. of Technol., Poland

Volume

36

Issue

4

fYear

1994

Firstpage

94

Lastpage

96

Abstract

In 1991, experiments were reported by Ishii and Giakos which led the authors of those papers to the conclusion that radio messages can be transmitted faster than light. Such an idea is an apparent contradiction to the theory of relativity, and has provoked rebuttals, e.g. from Tichy-Racs (1992) and Marks (1992). The experimental evidence which followed, showed that an RF-pulse signal cannot travel faster than light. A paper by Stephan (see IEEE Antennas and Propagation Magazine, vol.35, no.3, p.13, 1993) has revealed that the controversy has not yet been resolved. This article should clarify how a misinterpretation of the observation could be understood as transmission faster than light.<>

Keywords

light transmission; light velocity; radiowave propagation; relativity; RF-pulse signal; experimental evidence; light transmission speed; radio message transmission; theory of relativity; Delay; Detectors; Electromagnetic waveguides; Frequency; Microwave propagation; Optical propagation; Pulse measurements; Q factor; Signal detection; Transmitters;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/74.317809

Filename

317809