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Measuring antenna loss: Heat balance?
I know that many people think G3LHZ is a little bit off his rocker, but out of
curiosity... what he suggests on slide 15 he http://frrl.files.wordpress.com/2009...heuristics.pdf - - is that a valid approach to measuring antenna efficiency? -- Use a thermal camera to note how much an antenna heats up with a given input power, find out how much DC power it required to heat it to the same temperature (the antenna's loss), and -- poof! -- antenna efficiency = (input power-loss)/input power? What are the significant loss mechanisms that he's not accounting for? (He claims his matching network isn't getting at all hot.) Thanks, ---Joel |
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