COMPUTER FUNDAMENTALS

Detailed explanation-1: -(Also called effective aperture.) In antenna design, the ratio of the received power available at the terminals of an antenna to the power per unit area in the incident wave. The effective area of an ideal antenna is equal to its physical area S.

Detailed explanation-2: -Gain and Effective Aperture For a fixed wavelength, the antenna gain is proportional to the effective aperture. For a fixed effective aperture, the antenna gain is inversely proportional to the square of the wavelength. G d B = 10 log 10 G = 10 log 10 ( 4 A g 2 ) .

Detailed explanation-3: -What is Capture Area? Capture area, or more correctly effective aperture (Ae), is a direct function of antenna gain and operating wavelength. Ae is determined by the voltage available across a load matching the antenna feed impedance for a given electromagnetic field strength density.

Detailed explanation-4: -How a transmitter sends radio waves to a receiver. 1) Electricity flowing into the transmitter antenna makes electrons vibrate up and down it, producing radio waves. 2) The radio waves travel through the air at the speed of light. 3) When the waves arrive at the receiver antenna, they make electrons vibrate inside it.