My memory may be failing me, and I’m far too tired to recall the physics behind it, but have we not seen several advancements in phased array set ups to improve the scan width? Both in the technology itself, and the installation methods.
I am mostly asleep though, had a tonne of caffeine and that tends to knock me out.
I recall reading something on helping to improve the scan width, but I don’t have it to hand. I’ll see if I can find anything I read on it when I’m not on the verge of collapse. If I remember.
Going back to monke (or giga brain, depending on how you look at it) and steering the array itself is a solution. Some Russian jets already do this. Gripen-E does so too by rotating it IIRC, which gives it the ability to even scan over its shoulder a bit. There are probably other examples too.
That radar is worse than most top tier radars, iam quite confident in saying that its worse than Su-27SM radar jusd due to inability to have 2-3 bar scan. Now you ALWAYS have to scan huge area. In largest one, it cant track. It simply loses track before it repeats the scan. In 16° cover, it can barely do it against slow MiG-15 in slight turn. I bet that anything fast maneuvering will get out of that track without any issues. Its visible on the video, it slowly loses it. Only somewhat reliable is the most narrow one aka absolutely useless unless you engage single target.
And its all made worse by gaijins induced bug of doubled refres rate due to repeating scan pattern.