steve5
cheers for that capn , as you no doubt have worked out , my knowledge on these ships is limited .
Hasn't limited your ability to render an exquisite model, though.
For esoterica, radar antennae generate a "field shape" 90º to the antenna geometry. So a horzontal rectangle 'makes' a vertical rectangle "beam."
This is neatly captured in the Mk 37 director radar. The double-lobed antenna is double-lobed to reduce length over all, and gives a sweep beam in plan orientation. The "banana" antenna to the side makes a horizontal beam lobe, which allows identifying things in vertical height.
After the war, when they went to the circular antenna, the whole dish was used for both plan and height scanning, by pivoting the antenna vertically.
Additionally number of targeting (as apposed to search) radar antenna are spun to give a "reflection" pause. That allows time for the signal to go out to the target and return back, without havng to switch high voltages on and off rapidly. A serious issue in the days of vacuum tubes.