Effective Aperture & Aperture Efficiency

Effective Aperture:

  • The concept of Aperture is a measure of how effective an antenna is at the receiver side to receive the maximum power of electromagnetic waves.
  • Aperture is the area which is oriented perpendicular to the direction of an incoming EM waves.
Types of Aperture:
  • Effective Aperture (Ae)
  • Scattering Aperture (As)
  • Physical Aperture (Ap)
  • Loss Aperture 
  • Collective Aperture
Effective Aperture:
  • It is defined as the ratio of power received at the antenna load terminal to the power density of the incident wave.
  • It is the area over which the antenna extracts the EM Waves from the transmitted signa
Aperture Efficiency:
  • It is the ratio of the effective aperture to the physical aperture.


Youtube video for this lecture is available: https://www.youtube.com/watch?v=b20Ua4NKpU8

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