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Tagged with physics antenna-theory
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Can radio waves be made to travel as or along a particle beam? [closed]
Can a laser be used as an antenna?
Can a beam of any type extend transmission distance of an electromagnetic field?
https://medium.com/starts-with-a-bang/this-is-why-the-2018-nobel-prize-in-...
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How do you calculate the field strength at a given distance?
Given this question from the full license exam in the UK:
What is the field strength at a distance of 7m from an antenna with an effective radiated power of 100W?
in which the answer is:
10 V/m
...
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Calculating Antenna Length on the FCC Exam vs. in Reality
I have seen the following formulas for calculating half and quarter wavelength antennas:
Formula for $\frac{1}{2}$-wavelength antenna (in free space):
\begin{equation}
\mathrm{Length~(feet)} = \frac{...
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