on someone's radar

on (one's) radar (screen)

Considered by one as important or noteworthy; within the spectrum of one's awareness, attention, or consideration. If you want this issue on people's radar, you have to frame it as something that will impact their wallets. This band wasn't on my radar screen six months ago, but they're one of my favorites now.
See also: on, radar

on someone's radar

If something is on someone's radar, they are aware of it or are intending to deal with it. I was never focussed on being an actress. It wasn't even on my radar. Lewis has been told I am waiting to see him, but I'm not even on his radar.
See also: on, radar