radial grating

radial grating

[′rād·ē·əl ′grād·iŋ]
(electromagnetism)
Conformal wire grating consisting of wires arranged radially in a circular frame, like the spokes of a wagon wheel, and placed inside a circular waveguide to obstruct E waves of zero order while passing the corresponding H waves.

radial grating

Nonrectangular grating, in which the bearing bars extend radially from a common center and the cross bars have a pattern of concentric circles.
References in periodicals archive ?
Some studies have used terms like radial targets, radial gratings, Polar gratings, windmill stimuli, and star-like, among others (e.