Thursday, November 11, 2010

Microwave Engineering Considerations

Free Space & Atmospheric Attenuation:

Free space & atmospheric attenuation is defined by the loss the signal undergoes traveling through the atmosphere.
Changes in air density and absorption by atmospheric particles.
Reflections can occur as the microwave signal traverses a body of water or fog bank; cause multipath conditions.
Diffraction is the result of variations in the terrain the signal crosses.
Rain Attenuation:
Raindrop absorption or scattering of the microwave signal can cause signal loss in transmissions.
Skin Affect:
Skin Affect is the concept that high frequency energy travels only on the outside skin of a conductor and does not penetrate into it any great distance.
Skin Affect determines the properties of microwave signals.