The cutoff frequency of the first higher-order even mode in a shielded multilayer coplanar waveguide (CPW) is studied using the spectral domain approach (SDA). The effective dielectric constant for the dominant odd mode and first higherorder even mode in a shielded multilayer CPW is computed and compared to other published numerical results. Dielectric constant and substrate height are varied with respect to even mode cutoff frequency and plotted for several CPW structures. Different combinations of internal substrates are shown to produce even mode cutoff frequency maximization for increased odd mode operation bandwidth.
|Original language||English (US)|
|Number of pages||4|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|State||Published - Sep 1993|
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering