A physical frequency-dependent compact model for RF integrated inductors

Author

Sieiro, Javier ; López-Villegas, José M. ; Cabanillas, José ; Osorio, Joan A. ; Samitier, Josep

Author_Institution

Dept. of Electron., Barcelona Univ., Spain

Volume

50

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

384

Lastpage

392

Abstract

A frequency-dependent compact model for inductors in high ohmic substrates, which is based on an energy point-of-view, is developed. This approach enables the description of the most important coupling phenomena that take place inside the device. Magnetically induced losses are quite accurately calculated and coupling between electric and magnetic fields is given by means of a delay constant. The later coupling phenomenon provides a modified procedure for the computation of the fringing capacitance value, when the self-resonance frequency of the inductor is used as a fitting parameter. The model takes into account the width of every metal strip and the pitch between strips. This enables the description of optimized layout inductors. Data from experiments and electromagnetic simulators are presented to test the accuracy of the model

Keywords

MMIC; UHF integrated circuits; eddy current losses; electromagnetic coupling; equivalent circuits; inductors; integrated circuit layout; integrated circuit modelling; resonance; RF integrated inductors; RFICs; coupling phenomena; delay constant; eddy currents; fitting parameter; frequency-dependent compact model; fringing capacitance value; high ohmic substrates; inductor layout optimization; magnetically induced losses; metal strip width; optimized layout inductors; pitch; self-resonance frequency; Capacitance; Computational modeling; Couplings; Delay; Inductors; Magnetic fields; Magnetic losses; Radio frequency; Strips; Testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.981290

Filename

981290