= 7.9 Three vertical N/2 dipoles are mounted 3λ apart in the same horizontal line and are fed with currents of IA 0.25/sin (wt - 90°), IB = I sin wt and Ic = 0.25/ sin (wt + 90°). Derive an expression for the field strength produced at a distant point.

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7.9 Three vertical N/2 dipoles are mounted 3λ apart in the
same horizontal line and are fed with currents of IA
0.25/ sin (wt
-
=
90°), IB = I sin wt and Ic = 0.25/ sin
(wt + 90°).
Derive an expression for the field strength produced at a
distant point.
Transcribed Image Text:7.9 Three vertical N/2 dipoles are mounted 3λ apart in the same horizontal line and are fed with currents of IA 0.25/ sin (wt - = 90°), IB = I sin wt and Ic = 0.25/ sin (wt + 90°). Derive an expression for the field strength produced at a distant point.
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