6.5. Four isotropic sources are placed along the z-axis as shown. Assuming that the ampli- tudes of elements #1 and #2 are +1 and the amplitudes of elements #3 and #4 are -1 (or 180 degrees out of phase with #1 and #2), find (a) the array factor in simplified form (b) all the nulls when d = N2 #2 d #1 d/2 #3 d. # 4
6.5. Four isotropic sources are placed along the z-axis as shown. Assuming that the ampli- tudes of elements #1 and #2 are +1 and the amplitudes of elements #3 and #4 are -1 (or 180 degrees out of phase with #1 and #2), find (a) the array factor in simplified form (b) all the nulls when d = N2 #2 d #1 d/2 #3 d. # 4
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter14: Basic Trigonometry And Vectors
Section: Chapter Questions
Problem 1RQ: 1. Which trigonometric function is used to find the angle if the length of the hypotenuse and of the...
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