base on experience, MOI is not granting any brother's visa to all expatriate so means you cannot sponsor your brother under family visa category..they are only giving sister visa as part of the family visa category (renewable till 6 mos). In this instance, the only way you can get your brother here in qatar is to inquire to some agencies who can assist you to acquire business visa for him...As per my know how, there are some agencies who can process business visa for male (3 months - renewable)...I hope this information can help you...God Bless!!!