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Related to Isotropic radiator: Isotropic antenna, Eirp


 (ī′sə-trō′pĭk, -trŏp′ĭk)
Identical in all directions; invariant with respect to direction.

i·sot′ro·py (ī-sŏt′rə-pē), i·sot′ro·pism (-pĭz′əm) n.


(ˌaɪsəʊˈtrɒpɪk) or


1. (General Physics) having uniform physical properties in all directions
2. (Biology) biology not having predetermined axes: isotropic eggs.
ˌisoˈtropically adv
iˈsotropy, iˈsotroˌpism n


(ˌaɪ səˈtrɒp ɪk, -ˈtroʊ pɪk)

also i•sot•ro•pous

(aɪˈsɒ trə pəs)

having physical properties, as elasticity, that are the same in measurement along all axes or directions.
i•sot′ro•py, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isotropic - invariant with respect to direction
anisotropic - not invariant with respect to direction; "anisotropic crystals"
References in periodicals archive ?
Most antennas' gains are measured with reference to an isotropic radiator and are rated in decibels with respect to an isotropic radiator (dBi).
The unit dBi indicates decibels with an isotropic radiator as the base comparison, and dBm indicates a base of 1 mW fed into 50 ohm impedance (common for wireless sensors).
Array theory shows that to avoid ripples in the pattern at the test area the elements must be closer to each other to approximate the pattern of an isotropic radiator.