Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is the difference between plane wave & modulated continuous wave?

  1. Feb 21, 2014 #1
    What is the relation between these two concepts?
     
  2. jcsd
  3. Feb 21, 2014 #2

    berkeman

    User Avatar

    Staff: Mentor

    Can you tell us what you know so far? The two concepts are fairly different...
     
  4. Feb 21, 2014 #3
    I have initial information about both waves and their characteristics but I am confused to find a relation between the two when it comes to make a comparison.
     
  5. Feb 21, 2014 #4

    meBigGuy

    User Avatar
    Gold Member

    It is not obvious in what context you are asking the question. I think a modulated continuous wave could be radiated as a time varying series of plane waves, kinda.
     
  6. Feb 21, 2014 #5

    berkeman

    User Avatar

    Staff: Mentor

    A plane wave is an EM wave that is propagating after travelling a moderate distance (a few wavelengths) from its source (like an antenna or other EM radiation source):

    http://en.wikipedia.org/wiki/Plane_wave

    Your term "modulated continuous waves" would just seem to imply that the EM waveform carries some form of modulation on it, whether it's AM or FM or some other modulation scheme:

    http://en.wikipedia.org/wiki/Modulation

    Modulated continuous waves could be carried on wired transmission lines, which would not qualify as "plane waves". Or the modulated continuous waves could be FM radio transmissions that you receive in your car as you drive around the city, and those are indeed plane waves carrying the sound information.

    Please read those two web pages in detail, to see if they help to answer your question. If you still have specific questions after reading those pages, please post them here in this thread.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: What is the difference between plane wave & modulated continuous wave?
Loading...