Phased Arrays - MATLAB Simulations for Radar Systems Design - page 341

Symbol Description Units

phid degrees

φ constant plane

thetad degrees

θ

constant plane

Consider the case when the inputs are:

a 1.5

N 10 dipole antennas

theta0

θ 0 = 45°

phi0

φ 0 = 60°

Variations ÒThetaÓ

phid

φ d = 60°

thetad

θ d = 45°

Fig.s 8.23 and 8.24 respectively show the array pattern in relative amplitude
and the power pattern versus the angle . Figs. 8.25 and 8.26 are similar to
Figs. 8.23 and 8.24 except in this case the patterns are plotted in polar coordi-
nates.

θ

Fig. 8.27 shows a plot of the normalized single element pattern (upper left
corner), the normalized array factor (upper right corner), and the total array
pattern (lower left corner). Fig. 8.28 shows the 3-D pattern for this example in
the

θφ , space.

Figs. 8.29 through 8.33 are similar to those in Figs. 8.23 through 8.27,
except in this case the input parameters are given by:

a 1.5

N 10 dipole antennas

theta0

θ 0 = 45°

phi0

φ 0 = 60°

Variations ÒPhiÓ

phid

φ d = 60°

thetad

θ d = 45°