You can use your approach with some improvements: 1) Instead of \quad \\
you can use the optional argument of \\
to add some vertical space. 2) The \author
command inserts its argument in the document information fields of the resulting PDF file. This will produce some warnings due to the use of \\
; to turn off the automatic generation of those entries you can use the usepdftitle=false
class option:
\documentclass[usepdftitle=false]{beamer}
\usetheme{CambridgeUS}
\title[]{Title Text}
\author[Author B.C.]{Author B.C. \\[2\baselineskip]
some extra text 1 \\
some extra text 2 \\[\baselineskip]
some extra text 3
}
\date{date text}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\end{document}
Another possibility would be to use some of the predefined fields that go into the title page frame; for example, if not used, you could write the additional information in the \institution
field, which writes the information between the author and the date:
\documentclass{beamer}
\usetheme{CambridgeUS}
\title[]{Title Text}
\author[Author B.C.]{Author B.C.}
\institute[]{\normalsize some extra text 1\\
some extra text 2 \\[\baselineskip]
some extra text 3
}
\date{date text}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\end{document}