The latter two items are frequently associated with receiving antennas.įor example, if you do a calculation with MMANA for a model with no loss and save the pattern data to a.csv file using File Table of AngleGain, then read that.csv file with XLGTa you might see something like this: In addition to using AGT as a measure of model accuracy, the Average Gain ratio (not dB) can be used to determine antenna efficiency. In terms of the absolute value of the AGT dB level, Cebiks guidelines are: AGT 0.2 dB: Model is quite usable for most purposes.ĪGT 0.4 dB: Model may be useful, but adequacy can be improved.ĪGT 0.8 dB: Model is subject to question and should be refined.Ī new Excel app named XLGTa allows MMANA users to calculate Average Gain as well as other metrics based on a 3D pattern, such as RDF (aka Directivity) and DMF (aka Rear Hemisphere Mean Sidelobe Level). Cebik (SK) developed some guidelines for that purpose.
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