Crosstalk Of Finite-length Transmission Lines In Arbitrary Directions On The Same Ground Plane

Abstract

Transmission lines in the proximity are not always in parallel directions but in arbitrary directions. In this paper, crosstalk or coupling between transmission lines in the arbitrary directions is studied by using a circuit concept. Under the condition of weak coupling, self-capacitances and self-inductances of the transmission lines can be approximated to be invariant in spite of existence of a proximate line. Mutual-capacitances and mutual-inductance is estimated by considering the coupling mechanism for an external electromagnetic field to a transmissicin line. To generalize our mode, a four-port network is also studied.