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Understanding Radiation from Accelerating Charges: A Focus on Short Current Elements

This article explores the fundamental concepts of radiation produced by accelerating charges, specifically focusing on the linear radiation emitted from short current elements. It compares the near-field and far-field radiation patterns of a current element, offering insights into electromagnetic wave propagation characteristics. This information is crucial for applications in antenna theory and electromagnetic compatibility, providing a clear distinction between the behaviors of near and far fields generated by a short current element.

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Understanding Radiation from Accelerating Charges: A Focus on Short Current Elements

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  1. Radiation An Accelerating Charge

  2. Radiation An Accelerating Charge: Linear

  3. Radiation An Accelerating Charge: Linear

  4. Radiation An Accelerating Charge: Linear

  5. Radiation A Short Current Element Idl = Idz

  6. Radiation A Short Current Element Idl = Idz Far field:

  7. Radiation A TEM spherical wave A Short Current Element Idl = Idz Far field:

  8. Radiation A Short Current Element Idl = Idz Near field:

  9. Example • Current element Idz Comparison of near and far fields of a current element.

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