Transient coupling reduction in edge-coupled coplanar waveguide forward directional couplers

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.<
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