radiansphere

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. A [[sphere|spherical]] [[region]] of [[radius]] λ/2π around a small [[dipole]] [[electromagnetic]] [[antenna]]. This is the distance at which the [[induction]] and [[radiation]] [[term]]s 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.

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