Assertion: antenna | /r/HasProperty | efficient
Facets:
value: highly
type: DEGREE
value: perfectly
type: DEGREE
Source sentences:
text: If the antenna were perfectly efficient, all the radio power falling within its physical aperture would be converted to electrical power delivered to the load attached to its output terminals, so these two areas would be equal A e = A phys {\displaystyle A_{e}=A_{\text{phys}}} and the aperture efficiency would be 1.0.
text: When the base of the antenna is placed at least 1/4 wavelength above the ground or other conducting surface,the radials behave as a near-perfect ground system for an electromagnetic field, and the antenna is highly efficient.