Then you did something wrong. Since you failed to attach your code, I cannot "point" to the mistake. However, I ran the "correct" code with Azimuth of 20 and Elevation of 35. The "correct" operation gave me, as expected, the first Column (with the same values and signs) of the "Vector Antenna" 6 x 2 Matrix.
It is simple Math -- multiplying a 6 x 2 Matrix by the column Vector [1, 0] gives you a 6 x 1 Matrix where each row is the sum of 1 * the element in the first column of that row in Vector Antenna + 0 * the element in the second column of Vector Antenna, or (since multiplying something by 0 gives you 0 and adding 0 to anything gives you "anything", this operation returns a Matrix consisting of the first column of the 6 x 2 Matrix.
Bob Schor
P.S. -- I have told you what you need to do, and have offered to show you if you try and make a mistake. But you need to make the effort and post your code, showing how you modified the original "wrong" by following my suggestions.
