Abstract
Modal transitions involving the quasi-TEM (transverse electromagnetic) mode and higher-order modes in shielded microstrip and suspended microstrip with anisotropic substrates are studied. For the class of anisotropy studied, the largest eigenvalue may not correspond to the quasi-TEM mode at higher frequencies. It is shown that the dispersion curves of the quasi-TEM and higher-order modes do not intersect, but rather pass through a transition/coupling region and interchange mode types.
Original language | English (US) |
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Pages (from-to) | 677-680 |
Number of pages | 4 |
Journal | IEEE MTT-S International Microwave Symposium Digest |
Volume | 2 |
State | Published - Jan 1 1990 |
Externally published | Yes |