By Topic

Effect of Current Crowding on Frequency Response of a Stepped Planar RF Transmission-Line Lowpass Filter for Power Electronics

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Campbell, C.D. ; McMaster Univ., Hamilton, Ont. ; van Wyk, J.D. ; Chen, R.

This paper relates to prototype design studies of a stepped-tapered (in width) planar Cu-Al2O3-Ni-BaTiO3-Ni-Al2O 3-Cu radio frequency (RF) lowpass filter for an integrated power electronics module. An empirical cascaded one-dimensional (1-D) current-crowding model, using ABCD matrices, is employed to explain the anomalous, and degraded, high-frequency roll-off slope of the Ni-BaTiO 3-Ni attenuator segment in the desired (wide-to-narrow) forward connection. Good agreement between theory and experiment is obtained with the empirical current-crowding model, which incorporates changes in the resistance and self-inductance of the Ni conductor as functions of current crowding and skin depth. Additional support for postulated current crowding was inferred from two-dimensional (2-D) finite-element analysis (FEA) modeling of the electromagnetic field distributions in the individual attenuator segments. Such studies could serve as an aid to the design of other planar structures of improved tapered or exponential shape for enhancing the high-frequency roll-off response and slope

Published in:

Advanced Packaging, IEEE Transactions on  (Volume:29 ,  Issue: 4 )