Harlequins host the 2011 Champions on Sunday sitting at the top of the table with a near perfect 19 out of 20 points and five consecutive wins.
He said: “Saracens have got a brilliant kicking game so, as a back three player, I’ll have to be on top of my game.
“I’m very much looking forward to it but I need to concentrate on my performance and make sure I help the team the best I can to get the result we all want.
“They also bring a lot of physicality into the game so we need to make sure we match or even better that. We did it last week against Leicester and we need to do it again this week.”
Quins had a 16-game unbeaten run at the start of last season leading them to Premiership glory and Brown reckons winning feeling has become contagious.
He added: “We picked up where we left off last season. We are confident in the way we are playing.
“The atmosphere is always good at the club but it always helps when you’re winning.
“Last week at Welford Road was great. Not a lot of team come out with a win when they travel there and I thought we did it in style as well.
“But you can never be perfect. You can always improve. I think that’s why we achieved what we did last year and we are working very hard to achieve more.”