Assertion: antenna's radiation | /r/HasProperty | symmetrical
Facets:
value: about an axis
type: OTHER
value: in azimuthal directions
type: LOCATION
Source sentences:
text: This diagram only shows the radiation in a single plane through the axis, the radiation is symmetrical about the antenna's vertical axis.
text: Although the radiation of an omnidirectional antenna is symmetrical in azimuthal directions, it may vary in a complicated way with elevation angle, havingandat different angles.
text: If the radiation of the antenna is symmetrical about an axis (as is the case in dipole, helical and some parabolic antennas) a unique graph is sufficient.