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Why antenna gain is always in negative?

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brahma

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why antenna gain is always in negative???
 

Sceadwian

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antenna gain??

Antenna gain is not always negative. There are many cases (Zagi's and microwave dishes for starters) where the antenna gain is positive.
 

scoppulal

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Re: antenna gain??

It may depend on the reference used... I mean if your looking at a radiation pattern you could have normalization and then obtain a zero gain...
this could be another case...
Pay attention also to this things.

hope this helps. ciao
 

electronics_kumar

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Re: antenna gain??

gain will be always a positive quantity.reciprocal of gain or negative polarity for gain gives a new parameter called as attenuation...hope it helps
 

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