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Omni Gain-Beamwidth Relation - RF Cafe Forums

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Matt

Post subject: Omni Gain-Beamwidth Relation

Posted: Wed Sep 21, 2005 4:03 am

Hi all,

I am sure there must be a rule of thumb for the theoretical limitations of a gain & ele. angle relation. :?:

Lets say for an elevation angle of +- 70 degrees and 5dB omni possible?

thanks....

sag

Post subject: Re:

Posted: Fri Oct 21, 2005 10:46 am

Hay,

you can roughly use this formula:

Gain[dBi]=10Log(30000/(BW1*BW2))

where:

BW1=E-plane BW in deg.

BW2=H-plane BW in deg. (360 for omni).

Posted 11/12/2012


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