[TowerTalk] Horizontal Dipoles

[Don]

Question for the antenna gurus on this site.

I don't have any modeling SW nor experience with such SW. With that 
known, I have a question about a horizontal 1/2 wave dipole at a single 
height.

I understand the radiation pattern for a straight dipole, old school.

What I want to know is the pattern when a dipole has one leg 90 degrees 
from the other, again at a single height (not an inverted V). Would it 
be similar to a quadrant antenna, and almost omnidirectional? A friend 
contends not, that the quadrant antenna is a full wave dipole, not a 1/2 
wave and the pattern would be askew but not omni.

Answers?

Don W7WLL