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Radio waves emitted by an antenna - Bremsstrahlung radiation?

  1. Jan 21, 2012 #1
    Would radio waves emitted by an antenna be considered Bremsstrahlung radiation caused by pushing the electrons back and forth?
  2. jcsd
  3. Jan 21, 2012 #2


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    Yes in the sense that they both arise from the same effect, namely radiation emitted by an accelerating charge. Given by the Larmor formula for a nonrelativistic charge and the Lienard formula for a relativistic one.

    However the term Bremsstrahlung is unfortunately used in situations which don't really deserve the term. Strictly speaking, Bremsstrahlung only applies to the deceleration of a charged particle entering matter, such as the slowing of an electron when it encounters an atom. The radiation emitted by particles in a particle accelerator is sometimes called Bremsstrahlung, but it ain't.
  4. Jan 21, 2012 #3


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    'Bremsstrahlung' is also used for photons emitted during the scattering of a particle.
    In my experience, Bremsstrahlung refers to radiation by a single particle, not by an oscillating current.
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