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What should be the length of the diploe antenna for a carrier wave of frequency `3 xx 10^(8) Hz`? |
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Answer» Here, `v = 3 xx 10^(8)Hz`, `c= 3xx10^(8)m//s` Length of dipole antenna `= lambda/2 = c/2v` (Hertz Antenna) ` = (3 xx 10^(8))/(2 xx 3 xx 10^(8)) = 0.5m` This antenna is not grounded. On the other hand, Marconi antenna is grounded and its length ` = lambda/4 = c/4 v = (3xx10^(8))/(4xx3xx10^(8))` `= 0.25 m` |
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