How To Pass a URL along with Query String and open that into a new tab of the same browser window

Hi Team , 
I m having a MVC 4 Application , in that i have link where   i wanted to navigate to aspx website by passing parameter in the Query string  , for example
http://www.abcsite/?param1=anyjavacriptvariable  .  And also i want to open it in to the new tab of the same browser. please let me know how could i do this ?