Title :
Microstrip CAD models including surface wave coupling
Author :
Diewald, Andreas R.
Author_Institution :
IEE S.A., Contern, Luxembourg
Abstract :
Surface waves, especially the fundamental substrate-guided TM0z mode, are excited by any kind of discontinuity in RF printed circuit boards (PCBs) and planar microwave circuits. This special type of substrate-bound radiation is highly increasing with frequency and can become a dominant coupling mechanism in planar circuits. In this paper, an efficient method is presented to calculate correctly the coupling mechanism by surface wave radiation. The required current distribution is estimated only with single-port CAD models.
Keywords :
circuit CAD; current distribution; microwave circuits; printed circuits; RF printed circuit boards; current distribution; dominant coupling mechanism; microstrip CAD model; planar circuits; planar microwave circuits; single-port CAD model; substrate-bound radiation; surface wave coupling; surface wave radiation; Couplings; Microstrip; Microwave circuits; Solid modeling; Surface impedance; Surface waves; coupling; planar circuit; radiation; substrate; surface wave;
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
DOI :
10.1109/EuCAP.2012.6206420