Solution :
In question given that , Antenna diametre is ,
And average value of Wavelength is ,
=(2.3+2.4)/2
=2.35 GHz
or ( let the transmitted wave is travel with velocity c)
or
The beam produced by this microwave transmission antenna will spread out at a minimum angle due to diffraction ( called Rayeligh cretreon)
and antenna aperture is circular with diametre D ,So for a circular aperture of diameter , the first minimum in the diffraction pattern occurs at (providing the aperture is large compared with the wavelength of light)
radian
And Graph of intensity of the diffraction pattern for a circular aperture. similar to a single slit, the central maximum is wider and brighter than those to the sides
shown in fig.
So in fig . is the width or a Diametre of central maxima, And its value equals
The Voyager 1 space probe radio transmitter had a total power output of only 40 W....