Scalable Transmission Line and Inductor Models for CMOS Millimeter-Wave Design

Author

Brinkhoff, James ; Koh, Kok Siang Steve ; Kang, Kai ; Lin, Fujiang

Author_Institution

Inst. of Microelectron., Agency for Sci., Singapore

Volume

56

Issue

12

fYear

2008

Firstpage

2954

Lastpage

2962

Abstract

A new equivalent-circuit model for transmission lines and inductors on silicon is proposed. The SPICE-compatible model is suitable for time-domain simulators. It is able to fit the frequency-dependent behavior of the RLGC parameters well into the millimeter-wave range. The model is extracted from electromagnetic simulations with a simple analytic procedure with no need for tuning or optimization. A method for making the model scalable with both line length and width (or inductor diameter) is proposed. Based on this new model, a scalable measurement deembedding methodology is proposed, that can greatly reduce wafer area needed for test and deembedding structures. The fully scalable model results are compared with measurements of devices fabricated in a 90 nm CMOS process.

Keywords

CMOS integrated circuits; MMIC; elemental semiconductors; equivalent circuits; integrated circuit design; silicon; time-domain analysis; transmission lines; CMOS millimeter-wave design; RLGC parameter; SPICE-compatible model; Si; electromagnetic simulation; equivalent-circuit model; inductor model; measurement deembedding methodology; size 90 nm; time-domain simulator; transmission line; CMOS millimeter-wave integrated circuits; deembedding; inductors; integrated circuit modeling; monolithic microwave integrated circuits (MMICs); scalable models; transmission lines;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2008.2007337

Filename

4682654