We have 3 main frequency ranges in microwave Links
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Traditional band 6-42 GHz
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V band 60-75 GHz
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E band 71-86 GHz
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Traditional band used for long distances and medium capacity Links
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Because the channel bandwidth is from 7 to 56 MHz
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Capacity of the Link depends on 2 Factors related to frequency range :
- Bandwidth of channel
- S/N
That’s according to Shanon theory.
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V band (specially 60 GHz) used in small cells Links because it has high attenuation due to Gases.
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It has the advantages of frequency reuse, but the distance of coverage is low.
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E band is from 71-76 GHz and from 81-86 GHz.
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Channel bandwidth is high (from 250 MHz up to 2 GHz).
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E band can cover approximately from 3-5 km distances.
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E band has higher capacity than traditional.
We widely used traditional and E bands in microwave Links.
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