ghasem_008
Full Member level 4
Hi.
I have one question.
as we know,in a λ/4 monopole wire antenna above ground plane,gain is 5.16 dB.
also,in antenna,we can use from: dB=dBi. (if we don't use from dBd).
but in a reference book,we saw gain of monopole antenna in a frequency range is 0 dBi (as attachment)
in this book:
height = h = 50mm
radius = 0.5 mm
why in this book,gain is 0 dBi?
I have one question.
as we know,in a λ/4 monopole wire antenna above ground plane,gain is 5.16 dB.
also,in antenna,we can use from: dB=dBi. (if we don't use from dBd).
but in a reference book,we saw gain of monopole antenna in a frequency range is 0 dBi (as attachment)
in this book:
height = h = 50mm
radius = 0.5 mm
why in this book,gain is 0 dBi?
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