\documentclass[xetex, onlymath, handout]{beamer}
\usefonttheme{serif}
\usetheme{hsr}

% use lmodern for math
\usepackage{lmodern}

% math packages
\usepackage{amsmath}
\usepackage{amssymb}

\usepackage[T1]{fontenc}
\usepackage{beramono} % monospaced
\usepackage{roboto} % other
\renewcommand*\familydefault{\sfdefault}

% metadata
\title{Multipath fading channel demonstrator using SDR}
\author{Naoki Sean Pross \and Sara Cinzia Halter}
\date{23. December 2021}

\institute[OST]{OST FHO Campus Rapperswil}

\AtBeginSection[]
{
  \begin{frame}{Table of Contents}
    \tableofcontents[currentsection]
  \end{frame}
}


\begin{document}

\frame{
  \maketitle
}

\section{Multipath Fading}

\begin{frame}{Multipath fading}
  
\end{frame}

\end{document}

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