Can I Make a 5-Lambda EM Wave?

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Discussion Overview

The discussion revolves around the feasibility of creating an electromagnetic (EM) wave with a specific wavelength configuration, particularly focusing on a wave that is five times its own wavelength. Participants explore the implications of this concept in terms of wave pulses and energy production.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions the possibility of creating a pulse with a wavelength that is five times its own wavelength.
  • Another participant interprets the original question as asking about creating a pulse that spans five wavelengths.
  • A different viewpoint suggests that the concept does not make sense, as pulses typically contain many harmonics.
  • One participant proposes a method of turning on a transmitter, allowing five wavelengths to emit, and then shutting it off.
  • A later reply introduces the idea that the minimum pulse duration is dependent on the spectral content of the pulse, referencing concepts like "Fourier-transform limited pulse" and "time-bandwidth limited pulse."
  • Another participant seeks clarification on whether there is a difference in energy produced by a wave of a specific length compared to a wave that is five times that length.

Areas of Agreement / Disagreement

Participants express differing interpretations of the original question, and there is no consensus on the feasibility or implications of creating a five-wavelength EM wave. The discussion remains unresolved with multiple competing views.

Contextual Notes

Some assumptions about wave behavior and pulse characteristics are not fully explored, and the discussion includes references to advanced concepts that may require further clarification.

phabos
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is it possible to make am em wave of length 5(lamda)...lamda=wavelength of em wave...
 
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You want to make a pulse with a wavelength that is 5 times its own wavelength?
 
I think he means to make a pulse that is five wavelengths long.
 
Don't make no sense at all. A pulse has many many harmonics.
 
What's wrong with turning the transmitter on... waiting until 5 wavelengths go out... then shutting it off?
 
The minimum pulse duration that can be achieved depends on the spectral content of the pulse (i.e. the bandwidth). Look up "Fourier-transform limited pulse" or "time-bandwidth limited pulse".

Claude.
 
yes i mean 5 times of wavelength.but is there any difference in energy produced by a wave of length =300m and and 5*300(5 pulse)..
 

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