Theoretical and experimental evaluation of picosecond pulse propagation in suspended coplanar waveguides

Abstract

The propagation and dispersion characteristics of picosecond pulses in a suspended coplanar waveguide (SCPW) are presented. An evaluation based on numerical analysis shows that the SCPW can result in an improvement of about five times in pulse transmission capability over conventional CPWs. Pulse propagation along the SCPW is studied by simulations and experiments, both of which show a substantial suppression in pulse distortion. It is concluded that the SCPW should be a promising transmission structure for ultrashort pulses with picosecond and subpicosecond durations.<>