How to deal with people who calls with marginal hands in low buy -in

[RoyalLance]

I have been playing the $1.00+$.10 SNG's in Ultimate Bet for some time. I have trouble trying to know people out of a hand with my raises. I would raise with a hand like aces or king and somebody would stay in with Queen-Jack or suited rags. If I raise with Queens somebody would call me with ace-rag. If I have pocket Aces or Kings I commonly would raise with 5 times the big blind. If I have the same hole cards and there is a raise before me I would re-raise by making a pot-sized bet, a 10x big blind bet, or push it all in. Even with these kinds of bets I seem to get a person to call me with a marginal or junk hand and wind of getting a something like two pairs on the flop. Is there any way of preventing this kind if disaster?