Antenna aperture (capture area)
Posted: Sat Jul 17, 2004 11:19 am
An antenna has an aperture area, from which it captures all incoming radiation. The formula for the aperture area of any TV antenna is A=Gl2/4p where l is the wavelength and G is the gain factor over an isotropic antenna (not dB).
[img]http://www.hdtvprimer.com/ANTENNAS/aperture.gif[/img]
[img]http://www.hdtvprimer.com/ANTENNAS/aperture.gif[/img]