Assertion: antenna's aperture | /r/HasProperty | physical
Facets:
Source sentences:
text: The aperture efficiency is a dimensionless parameter between 0 and 1.0 that measures how close the antenna comes to using all the radio wave power entering its physical aperture.
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.