Yes, after getting your RP/Pataka, you can bring your wife on a visit visa.....but your salary must fall within in the minimum limit of QR 7000/month and you should have a family accommodation. The immigration personnel may ask for the electricity bill of your accommodation for verification or the rental agreement in case the electricity & water bill is included in the rent. If your salary is lower than the limit of QR 7000/month but you have been provided a company's accommodation, the Immigration will accept your application.