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Dipole vs Radiansphere - What's the difference?

dipole | radiansphere |

As nouns the difference between dipole and radiansphere

is that dipole is dipole while radiansphere is a spherical region of radius λ/2π around a small dipole electromagnetic antenna this is the distance at which the induction and radiation terms are equal in magnitude inside, the induction terms dominate in radio antenna theory the radiansphere is a convenient definition for the boundary between near-field and far-field regions.

dipole

English

Noun

(en noun)
  • (physics) any object (such as a magnet, polar molecule or antenna) that is oppositely charged at two points (or poles)
  • (chemistry) any molecule or radical that has delocalised positive and negative charges
  • (radio) a dipole antenna

    • Derived terms

    * dipole moment * dipole wave * electric dipole * molecular dipole

    Anagrams

    *

    radiansphere

    English

    Noun

    (en noun)
  • A spherical region of radius ?/2? around a small dipole electromagnetic antenna. This is the distance at which the induction and radiation terms are equal in magnitude. Inside, the induction terms dominate. In radio antenna theory the radiansphere is a convenient definition for the boundary between near-field and far-field regions.
  • * 1959 , , "The Radiansphere around a Small Antenna", Proceedings of the IRE , August, Volume 47, Issue 8, page 1325
  • *:"The "radiansphere'" is the boundary between the near field and the far field of a small antenna. Its radius is one radianlength (?/2?), at which distance the three terms of the field are equal in magnitude. A "small" antenna is one somewhat smaller than the '''radiansphere''', but it has a "sphere of influence" occupying the ' radiansphere .