Home / Questions / Use the techniques of Fig 86 to obtain a polar plot of the array factor of the array given in
Use the techniques of Fig. 8-6 to obtain a polar plot of the array factor of the array given in Prob. 8.2-1.
Problem 8.2-1
Consider an array of two elements spaced one wavelength apart with currents that are equal in amplitude and 180° out-of-phase.
(a) Use the inspection method to rough sketch the polar plot of the array factor.
(b) Derive the exact array factor as a function of θ if the elements are on the z-axis.
(c) For what angles of θ is this array factor maximum?
(d) What is the expression for the normalized array factor |f(θ)|?
(e) Show that (8-9) reduces to your answer in (d).
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