Analysis and modeling of GaAs-based coupled microstrip lines

This paper describes one of the critical technologies of very high speed integrated circuits (VHSICs), the equivalent circuit model of the GaAs substrate based coupled microstrip lines. We present a method that extracts a frequency-dependent tabular RLGC model from mixed-mode S-parameters estimated by EM simulation (software HFSS). This paper shows that the using a conventional modal decomposition can extend a two-line method for a single transmission line to a two-line method for a symmetrical coupled pair. This method can be contributed to establish the component library and analyze crosstalk and delays for GaAs-based transmission lines used in VHSICs widely.

[1]  T.-M. Winkel,et al.  An accurate determination of the characteristic impedance matrix of coupled symmetrical lines on chips based on high frequency S-parameter measurements , 1997, 1997 IEEE MTT-S International Microwave Symposium Digest.

[2]  M.T. Yang,et al.  On the millimeter-wave characteristics and model of on-chip interconnect transmission lines up to 110 GHz , 2005, IEEE MTT-S International Microwave Symposium Digest, 2005..

[3]  D.F. Williams,et al.  Accurate transmission line characterization , 1993, IEEE Microwave and Guided Wave Letters.

[4]  W. Eisenstadt,et al.  Combined differential and common-mode scattering parameters: theory and simulation , 1995 .

[5]  Dong-Ho Han,et al.  Hybrid method for frequency-dependent lossy coupled transmission line characterization and modeling , 2003, Electrical Performance of Electrical Packaging (IEEE Cat. No. 03TH8710).

[6]  H. Grabinski,et al.  Determination of the propagation constant of coupled lines on chips based on high frequency measurements , 1996, Proceedings 1996 IEEE Multi-Chip Module Conference (Cat. No.96CH35893).

[7]  Dylan F. Williams,et al.  Characterization of asymmetric coupled CMOS lines , 2000, 2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017).

[8]  Dong-Ho Han,et al.  Frequency-dependent RLGC extraction for a pair of coupled transmission lines using measured four-port S-parameters , 2004, ARFTG 63rd Conference, Spring 2004.

[9]  K. Kurokawa,et al.  Power Waves and the Scattering Matrix , 1965 .

[10]  W. R. Eisenstadt,et al.  Pure-mode network analyzer for on-wafer measurements of mixed-mode S-parameters of differential circuits , 1997 .

[11]  W. R. Eisenstadt,et al.  S-parameter-based IC interconnect transmission line characterization , 1992 .

[12]  D. Pozar.  Microwave Engineering , 1990 .