S-Parameter Model of IB-Shape Interconnect Lines Including Crosstalk Perturbation

An innovative crosstalk effect modeling between I and B shape interconnect structure is investigated. The equivalent topology of the victim interconnect line (IL) in proximity of the B-shape line perturbation with three-coupled line (CL) is established. The IB topology S-matrix is calculated as a function of the IL and coupling coefficient parameters from the CL hexapole equivalent black box. The unfamiliar phenomenological analysis on the transmission coefficient antiresonance is associated to particular behavior of group delay. Analytical expression illustrates the relation between the particular phenomenon to the B-IL physical length and crosstalk. The theoretical investigation was confirmed with the victim I-IL transmission coefficient is influenced by the B-line crosstalk. Simulations and measurements with two IB IL microstrip prototypes validate experimentally the established three-CLs-based analytical S-parameter model.