Linear loop array. An antenna array is made of n loops, all lying flat on a surface in a line, separated a distance 2d apart where d = 0.02λis the diameter of the loop.
(a) Calculate the electric and magnetic fields in the far field of the array, given a current I in each loop and a phase difference φ between each two consecutive loops.
(b) Calculate the array factor and the normalized array factor if all elements are in phase.
(c) Explain the relation between the result obtained here and that for a linear array of Hertzian dipoles.