Advertisement

Derivation of Ultra-Wideband Full Wave Equivalent Circuits for Wirebond Interconnects Using the FDTD Method

  • E. Pillai
  • W. Wiesbeck

Abstract

Discontinuities in multilayer PCBs and chip packages neglected earlier require special consideration at higher operating frequencies. Digital transmission frequencies of 620 MHz, 1.2 GHz and 2.4 GHz are currently in use. The discontinuities include via holes, coupling between lines, crossovers, line bends, SMA connectors and wirebonds. It is possible to solve Maxwell’s equations numerically for such structures and observe their behavior. This can lead to not only avoiding effects such as dispersion, reflection, resonances, coupling and radiation, but also to the development of simpler models for the discontinuities to be implemented in computer aided design CAD1.

Keywords

Equivalent Circuit Band Stop Wire Length Absorb Boundary Condition High Operating Frequency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    E. Pillai, F. Rostan and W. Wiesbeck, “Derivation of Equivalent Circuits for Via Holes from Full Wave Models,” IEE Elect. Let., vol. 29, No. 11, 1026:1028 (May 1993).ADSCrossRefGoogle Scholar
  2. 2.
    K. S. Yee, “Numerical Solution of Initial Boundary Value Problems involving Maxwell’s Equations in Isotropic Media,” IEEE Trans. Antennas and Prop., vol. AP-14, 302:307 (May 1966).ADSGoogle Scholar
  3. 3.
    G. Mur, “Absorbing Boundary Conditions for the Finite-Difference Approximation of the Time-Domain Electromagnetic-Field Equations,” IEEE Trans. on Electromag. Compat., vol. EMC-23, 377:382 (Nov. 1981).Google Scholar
  4. 4.
    G. F. Engen and C. A. Hoer, “Thru-Reflect-Line: An Improved Technique for Calibrating the Dual Six-Port Automatic Network Analyzer,” IEEE Trans. Microwave Theory Tech., vol. MTT-27, 987:993 (Dec. 1979).ADSGoogle Scholar
  5. 5.
    S. Haffa, D. Hollmann and W. Wiesbeck, “The Finite Difference Method for S-Parameter Calculation of Arbitrary Three-Dimensional Structures”, IEEE Trans. Microwave Theory Tech., vol. MTT-40, No.8, 1602:1610 (Aug. 1992).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • E. Pillai
    • 1
  • W. Wiesbeck
    • 1
  1. 1.Institute for High Frequency, Engineering and ElectronicsUniversity of KarlsruheKarlsruheGermany

Personalised recommendations