Differential signalling in PCBs: modeling and validation of dielectric losses and effects of discontinuities

Author

Araneo, R. ; Wang, Chen ; Gu, Xiaoxiong ; Celozzi, S. ; Drewniak, J.

Author_Institution

Dipt. di Energia Elettrica, Rome Univ., Italy

Volume

2

fYear

2001

fDate

2001

Firstpage

933

Abstract

This paper focuses on differential signal transmission above ground planes with gaps, taking into account the dielectric and conductive losses of the substrate. An equivalent lumped-circuit is proposed and its suitability is investigated by comparing the obtained numerical results with the measured data. Furthermore the differential to common mode conversion of the waves, while crossing the gap, is theoretically analyzed and experimentally verified

Keywords

dielectric losses; digital signals; electromagnetic interference; equivalent circuits; finite difference time-domain analysis; printed circuits; EMI; PCBs; common mode waves conversion; conductive losses; dielectric losses; differential signal transmission; differential signalling; digital signals; discontinuities effect; equivalent lumped circuit; finite difference time domain code; full wave FDTD; ground planes; signal integrity; substrate losses; Dielectric losses; Dielectric measurements; Dielectric substrates; Dispersion; Finite difference methods; Frequency; Polarization; Predictive models; Printed circuits; Propagation losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6569-0

Type

conf

DOI

10.1109/ISEMC.2001.950512

Filename

950512