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Hi
I'm new here so I don't know if I posted in right place but here is the problem.
I don't know if you are familiar with antenna theory but I need to calculate radius of 1. Fresnel ellipsoid. It's easy when two antennas are on same altitude but if they aren't there is a problem.
If you look the picture in attachment you will see that I need to calculate height h.
I won't give you and numbers because I need calculation for various cases but here are known variables:
ht  height of first antenna
hr  height of second antenna
Dtr  distance between antennas
D  distance between first antenna and point where h needs to be calculated
r  radius of 1. Fresnel ellipsoid on distance D
r=sqrt((λ*d1*d2)/(d1+d2))
λ=f/c
f  frequency
c  speed of light
These are all known numbers for various cases and for each of them I need to calculate h
Thank you very much.
I'm new here so I don't know if I posted in right place but here is the problem.
I don't know if you are familiar with antenna theory but I need to calculate radius of 1. Fresnel ellipsoid. It's easy when two antennas are on same altitude but if they aren't there is a problem.
If you look the picture in attachment you will see that I need to calculate height h.
I won't give you and numbers because I need calculation for various cases but here are known variables:
ht  height of first antenna
hr  height of second antenna
Dtr  distance between antennas
D  distance between first antenna and point where h needs to be calculated
r  radius of 1. Fresnel ellipsoid on distance D
r=sqrt((λ*d1*d2)/(d1+d2))
λ=f/c
f  frequency
c  speed of light
These are all known numbers for various cases and for each of them I need to calculate h
Thank you very much.
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