OK so now that we have established that this is a 1/2 wave dipole
Confirm that the feedpoint is in the centre
and if so, then the comment Berkeman made in post # 3 is applicable
do some googling with his key words
Us amateurs ( ham radio guys) Berkeman, myself and prob. a few others on here use inverted V antennas mainly on the HF bands 1.8 - 30MHz
just for a little practical antenna use
top diagram a horizontal dipole ... radiation directions straight up, down, in and out of page ... nothing off the ends
this is not ideal, as it makes the dipole very directional, also a lot of the signal is radiated straight up bounces of the ionosphere
and comes straight back down ... waste of energy ;)
using an inverted V lowers the overall radiation pattern by lowering the angle and making better use of the ionospheric reflection
it also improves the antennas performance by making it less directional
I appreciate this doesn't directly answer your MATLAB queries. Just giving you some practical use
cheers
Dave