Fresnel Zone: Ellipsoids, Energy & Wavelengths

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SUMMARY

The Fresnel zone is a critical concept in wireless communication, representing the ellipsoidal regions that contain the majority of the energy transmitted between antennas. As the wavelength increases, the width of these ellipsoids also expands, impacting signal propagation and interference. Understanding the geometry of Fresnel zones is essential for optimizing antenna placement and ensuring effective communication. For a detailed explanation, refer to the resource provided at zytrax.com.

PREREQUISITES
  • Understanding of wireless communication principles
  • Familiarity with antenna theory
  • Basic knowledge of wave propagation
  • Concept of wavelength in electromagnetic waves
NEXT STEPS
  • Research the mathematical derivation of Fresnel zone calculations
  • Explore the impact of Fresnel zones on antenna placement strategies
  • Learn about the relationship between wavelength and signal quality in wireless systems
  • Investigate practical applications of Fresnel zones in real-world wireless networks
USEFUL FOR

Wireless communication engineers, antenna designers, and anyone involved in optimizing signal transmission and reception in wireless networks.

unseensoul
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I know fresnel zone is related to ellipsoids but what are these about? I was told they represent most of the energy transmitted by an antenna to another antenna. However, this makes no sense to me. Apparently, the width of the ellipsoid increases if the wavelength does so as well which makes it even more confusing. What do these ellipsoids actually represent? Why not another shape such as a rectangle?
 
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