6.1. Three isotropic sources, with spacing
d
between them, are placed along the
z
-axis. The excitation coefficient of each outside element is unity while that of the center element is 2 . For a spacing of
d=(\lambda )/(4)
between the elements, find the (a) array factor (b) angles (in degrees) where the nulls of the pattern occur (
0\deg <=\theta <=180\deg
) (c) angles (in degrees) where the maxima of the pattern occur (
0\deg <=\theta <=180\deg
) (d) directory using Directivity program of Chapter 2.

Question

6.1. Three isotropic sources, with spacing

d

between them, are placed along the

z

-axis. The excitation coefficient of each outside element is unity while that of the center element is 2 . For a spacing of

d=(\lambda )/(4)

between the elements, find the (a) array factor (b) angles (in degrees) where the nulls of the pattern occur (

0\deg <=\theta <=180\deg

) (c) angles (in degrees) where the maxima of the pattern occur (

0\deg <=\theta <=180\deg

) (d) directory using Directivity program of Chapter 2.

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Solution for - 6.1. Three isotropic sources, with spacing d between them, are placed along the z-axis. The excitati

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