protractor get element by name tag

at the Moment im working with protractor and selenium web Driver.

I have the following problem:

I have a html page, and I make protractor clicking a button. Then a window pops up. This window contains a text box with the Name "Description":

<input type="Text" name="Description" ... />

Now when I try the following:

element(by.css('[name="Description"]')).sendKeys("rabbababab");

The browser does nothing, but protractor does not throw an error. No text is typed into the TextBox. Unfortunatelly, the name is the only way to identfy the input-TextBox.

What am I doing wrong?