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Finding "Average Gain" within a beam

 
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Mszazynski
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Joined: 26 Dec 2017
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PostPosted: Thu Mar 22, 2018 2:19 am    Post subject: Finding "Average Gain" within a beam Reply with quote

Hello, I have been working to find the total percentage of power which is contained within a beam. I've realized that I cannot simply use the peak value for Gain, and follow the rules for finding power density, because that is only the maximum power density. If I want to know the actual average power density within this beam, I would need to know the average gain. Can anyone help me understand how I would find this average gain or approximate it? So far the only way I've found is to actually integrate across the half power beamwidth
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admin
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PostPosted: Tue Nov 12, 2019 11:13 pm    Post subject: Reply with quote

average gain across the entire sphere is efficiency

For average gain, what's the definition of beam edge? if null to null, I might just take the 3dB bandwidth, see how that compares to total beam width (null to null). If 3dB bandwidth is half of the total beam width, then I'd say average gain is basically half of the peak (or peak gain minus 3 dB)
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Mackbu
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PostPosted: Wed Nov 20, 2019 2:40 pm    Post subject: Reply with quote

Null to null is pretty much the standard in a case like this, right?
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