Assertion: radome's effect | /r/CreatedBy | the mismatch
Facets:
value: between refractive index
type: OTHER
value: between that of free space
type: OTHER
Source sentences:
text: Because the dielectric materials comprising a radome or isolator have positive permittivity greater than one (typically, greater than 2.1), two negative effects unrelated to loss tangent are caused by the mismatch between the characteristic impedance and refractive index of the radome material and that of free space.