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2. An important result for antennas is that if a current flows along the z-axis, then for distant fields μH = V x A redu
Posted: Wed May 04, 2022 1:37 pm
by answerhappygod
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2. An important result for antennas is that if a current flows along the z-axis, then for distant fields μH = V x A reduces to μHø == sin (0) Use the first equation to obtain the second equation. AZA 2 0 0 Antenna Element Figure 1: Antenna Element Hint: Knowing that the vector potential must point in the 2 direction we can go the far field point and find the coordinates of A in spherical coordinates. Then go to chapter 1 of the book and find the expression for the curl of the vector potential in spherical coordinates. This curl will only have one non-zero component and it will be the answer to this problem. Ө Az Ər A