Hi Explorer123,
You can find your answer by looking into the Shanon-Harley law (information Capacity theorem) or the Shanon's 3rd law. There are various modification we can bring to the equation mentioned to derive useful insights. It will also give information regarding the Shanon's limit too.
You can find lots of articles as well as books in this regard.
For immediate reference just read the following file <http://cwww.ee.nctu.edu.tw/course/channel_coding/CC01.pdf>.
In this, you could modify the shanon equation as SNR inside the brackets to get the relation with Bandwidth, capacity etc... If this is not enough just google for more interesting papers...
Hope this helped you...