Assertion: antenna's element | /r/HasProperty | active
Facets:
Source sentences:
text: A dish antenna consists of an active, or driven, element and a passive parabolic orspherical reflector.
text: Elements used in this way are known as “passive elements”.
text: Horn antennas are commonly used as the active element in a dish antenna.
text: Elements used in this way are known as “passive elements”.