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Comment on all the results obtained. 1. The array factor of N-element linear array with uniform spacing and equal excitation is $\sin(\frac{N\psi}{2})$ given by $AF = \frac{\sin(\frac{N\psi}{2})}{\frac{N\psi}{2}}$. Draw the normalized radiation pattern in dB scale for (a) $d = \frac{\lambda}{4}$ and (b) $d = \lambda$ for N = 10 and $\beta = 0^\circ$. Compare the radiation patterns for 10-element uniform amplitude end fire array for $d = \frac{\lambda}{4}$ spacing. (use MATLAB)

          Comment on all the results obtained.
1. The array factor of N-element linear array with uniform spacing and equal excitation is
$\sin(\frac{N\psi}{2})$ 
given by $AF = \frac{\sin(\frac{N\psi}{2})}{\frac{N\psi}{2}}$. Draw the normalized radiation pattern in dB scale for (a)
$d = \frac{\lambda}{4}$ and (b) $d = \lambda$ for N = 10 and $\beta = 0^\circ$.
Compare the radiation patterns for 10-element uniform amplitude end fire array for
$d = \frac{\lambda}{4}$ spacing. (use MATLAB)

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Comment on all the results obtained.
1. The array factor of N-element linear array with uniform spacing and equal excitation is
sin((Nψ)/(2))
given by AF = (sin((Nψ)/(2)))/((Nψ)/(2)). Draw the normalized radiation pattern in dB scale for (a)
d = (λ)/(4) and (b) d = λ for N = 10 and β = 0^∘.
Compare the radiation patterns for 10-element uniform amplitude end fire array for
d = (λ)/(4) spacing. (use MATLAB)

Added by Luis H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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Solved by Expert Paul Gabriel

Step 1

Step 1: Understand the array factor equation for an N-element linear array The array factor (AF) is given by: AF = sin(Nψ/2) / (N·sin(ψ/2)) Where ψ is related to the angle θ by ψ = kd·cos(θ) + β k = 2π/λ is the wave number d is the element spacing β is the Show more…

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The array factor of an N-element linear array with uniform spacing and equal excitation is given by the equation AF = N * y * sin(2 * theta). You need to plot the normalized radiation pattern (using MATLAB) in dB scale for (i) d = lambda/4 and (ii) d = lambda, where N = 10 and the propagation phase delay (beta) = 0 degrees. Also, compare the radiation patterns for a 10-element uniform amplitude end fire array with a spacing of d = lambda/4. Please solve this as soon as possible. Comment on all the results obtained.

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