Wednesday, June 3, 2009

Microwave Transmission System

Microwave Spectrum:

Range is approximately 1 GHz to 40 GHz
Total of all usable frequencies under 1 GHz gives a reference on the capacity of in the microwave range.

Components of a Microwave System:

1) Digital Modem.
2) Radio Frequency (RF) Unit.
3) Antenna.


Digital Modem:

The digital modem modulates the information signal.
(intermediate frequency or IF)

RF Unit:

IF is fed to the RF unit which is mounted as close physically to the antenna as possible.
(direct connect is optimal)

Waveguides:

Waveguides are hollow channels of low-loss material used to direct the signal from the RF unit to the antenna.



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