Given that the radiation resistance for a short dipole antenna is 75Ω and the length is...
Given that the radiation resistance for a short dipole antenna is 75Ω and the length is 217.6mm, at what frequency would one expect this antenna to radiate?
Homework Answers
Hey,
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R=75
l=217.6=217.6*10^-3 m
R=200*(l/lam)^2
lam=c/f
So,
R=200*(l*f/c)^2
f^2=(R/200)*(c/l)^2 where c is 3*10^8
So, f^2=7.12 *10^17
So, f=8.44*10^8 Hz=0.844 GHZ
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