Dear J. Mc Laughlin
First of all, I want to apologize for replying late.
Answers:
1. Yes, it is true.
2. No, the angle is meant to be 45 degrees. Sorry for the bad drawing.
3. The length of each dipole is an electrical 0.5 WL.
4. It is a university project. I am a postgraduate student of
"electrical and computer engineering".
5. No, it is not. In fact, I'd be rather lucky if we even manage to
construct it at all.