F. Schnieder , T. Tischler, and W. Heinrich

Published in:

IEEE Trans. Microwave Theory Tech., vol. 51, no. 1, pp. 137-143, Jan. 2003.

Abstract:

Dispersion and radiation properties of the conductor-backed coplanar waveguide (CPW) with finite ground planes are analyzed and modeled. A frequency-domain finite-difference method using the perfectly matched layer absorbing boundary condition is used as reference. Based on these results, a closed-form description is derived and implemented into an existing quasi-static CPW model. This leads to a comprehensive and efficient CPW description accounting for all relevant effects from conductor loss to high-frequncy dispersion. Additionally, design rules to avoid parasitic radiation effects are given.

Index Terms:
Coplanar waveguide (CPW), leaky waves, modeling, radiation effects.

© 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Full version in pdf-format.