The fields around an antenna may be divided into two principal regions i.e. Fresnel zone and Fraunhofer zone. If L is the maximum dimension of the antenna and λ is the wavelength. Then the radius of the Fresnel-Fraunhofer boundary sphere is

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TuteeHUB · Accepted Answer

$R = \frac{{2L}}{{{\lambda ^2}}}$

TuteeHUB · Answer

$R = \frac{{{L^2}}}{{2\lambda }}$

TuteeHUB · Answer

$R = \frac{L}{{2\lambda }}$

TuteeHUB · Answer

$R = \frac{{2{L^2}}}{\lambda }$

1.	The fields around an antenna may be divided into two principal regions i.e. Fresnel zone and Fraunhofer zone. If L is the maximum dimension of the antenna and λ is the wavelength. Then the radius of the Fresnel-Fraunhofer boundary sphere is
A.	\(R = \frac{{{L^2}}}{{2\lambda }}\)
B.	\(R = \frac{L}{{2\lambda }}\)
C.	\(R = \frac{{2{L^2}}}{\lambda }\)
D.	\(R = \frac{{2L}}{{{\lambda ^2}}}\)
Answer» D. \(R = \frac{{2L}}{{{\lambda ^2}}}\)

The fields around an antenna may be divided into two principal regions i.e. Fresnel zone and Fraunhofer zone. If L is the maximum dimension of the antenna and λ is the wavelength. Then the radius of the Fresnel-Fraunhofer boundary sphere is

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