A three element linear array of isotropic sources aligned along the zaxis has an interelement spacing of 61548 61487 4 Fig 9 38 (P9 34) The amplitude excitation of the center element is twice that of the bottom and top elements and the phases are 61552 61487 2 for the bottom element and 61552 61487 2 for the top element, relative to that of the center element Determine the array factor and plot it in the elevation plane 1 42 N4 N4 1 Z12 Figure P9 34 (a) Three element array of Problem 9 34

Question: A three-element linear array of isotropic sources aligned along the zaxis has an interelement spacing of 4 Fig. 9-38 (P9.34). The amplitude excitation of the

A three-element linear array of isotropic sources aligned along the zaxis has an interelement spacing of 4 Fig. 9-38 (P9.34). The amplitude excitation of the center element is twice that of the bottom and top elements and the phases are €“ 2 for the bottom element and 2 for the top element, relative to that of the center element. Determine the array factor and plot it in the elevation plane.

1 42 N4 N4 1 Z12 Figure P9.34: (a) Three-element array of Problem 9.34.

1 42 N4 N4 1 Z12 Figure P9.34: (a) Three-element array of Problem 9.34.

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