McIlroy is coming off the back of successive Sunday disappointments at the Abu Dhabi Golf Championship, where he surrendered the overnight lead to finish third, and the Farmers Insurance Open in California, where he was cleared by the PGA Tour of any wrongdoing after taking a free drop for an embedded ball during his third round.
Farmers Insurance Open winner Patrick Reed was involved in a similar situation in which the American moved his ball before calling a rules official.
While Reed carded an impressive four-under-par final-round 68 to win by five strokes, McIlroy’s challenge faded as he stumbled to a closing 73 and a tie for 16th.
However, the 2019 PGA Tour player of the year believes he can feed off the crowd’s energy in Arizona this week at a tournament renowned for its raucous atmosphere.
“It’s going to be gradual, I don’t think anything’s going to be at capacity or 100% for a while, but the fact that Phoenix is going to have 5,000, I think it’s a good thing,” added McIlroy, who is making his Phoenix Open debut in the middle of a busy run of seven tournaments in an eight-week stretch.
“Sometimes you have a pin that’s tucked behind a bunker or something, you can’t see the bottom of it and you think you’ve hit a good shot but you have no idea where the ball is.
“It will actually be nice to just have a reaction, to get a clap or not get a clap or whatever, so that will be nice.”
McIlroy will partner world number four Xander Schauffele – one of five joint runners-up to Reed at Torrey Pines – and Daniel Berger in the first two rounds in Phoenix.
Jon Rahm, Justin Thomas, Brooks Koepka and defending champion Webb Simpson are also among a strong field.