Title :
Transient coupling reduction in edge-coupled coplanar waveguide forward directional couplers
Author :
Lyons, M.R. ; Balanis, C.A.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
Picosecond pulse propagation is studied in symmetric, edge-coupled, coplanar waveguide (CPW) forward directional couplers. Frequency dependent even-and odd-mode effective dielectric constants are found that exactly equalize for specific multi-layer substrate height configurations at a given frequency. Results of transient coupling reduction are presented in a multi-layer compensated structure.<>
Keywords :
directional couplers; permittivity; waveguide theory; CPW forward directional couplers; edge-coupled CPW coupler; even-mode effective dielectric constant; multilayer compensated structure; multilayer substrate height configurations; odd-mode effective dielectric constant; picosecond pulse propagation; transient coupling reduction; Coplanar waveguides; Dielectric constant; Dielectric substrates; Directional couplers; Frequency dependence;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335116
