Title :
Time-domain characterization of bent coplanar waveguides
Author :
Alexandrou, Sotirk ; Sobolewski, Roman ; Hsiang, Thomas Y.
Author_Institution :
Dept. of Electr. Eng., Rochester Univ., NY, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
A comprehensive experimental study of the propagation of picosecond steplike transients on bent coplanar waveguides (CPWs) on GaAs substrates is presented. Bent CPWs with different degrees of bend-smoothing were investigated with the aid of a subpicosecond electrooptic sampling system. The observations indicated that the physical length of the bent CPW had to be taken into account in order to evaluate the signal propagation velocity correctly. Smoothing of the bends significantly improved the HF performance of the lines. The results demonstrate that transients with a bandwidth in excess of 100 GHz suffer only limited signal distortion when they are propagated over substantial distances on bent CPWs
Keywords :
bending; transients; waveguides; 100 GHz; CPW; GaAs substrates; HF performance; bend-smoothing; bent coplanar waveguides; limited signal distortion; physical length; picosecond steplike transients; signal propagation velocity; subpicosecond electrooptic sampling; transmission lines; Coplanar waveguides; Cutoff frequency; Dielectric substrates; Impedance; Laboratories; Laser fusion; Microwave propagation; Optical propagation; Power system transients; Time domain analysis;
Journal_Title :
Quantum Electronics, IEEE Journal of
