Experimentally observed frequency variation of the attenuation of millimeter-wave coplanar transmission lines with thin metallization
- 1 August 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 2 (8) , 322-324
- https://doi.org/10.1109/75.153601
Abstract
The attenuation of small coplanar transmission lines on insulating InP and GaAs has been investigated experimentally over the frequency range 0-60 GHz by on-wafer probing. The ground-to-ground spacing d, the center line width w, and the metal thickness t were varied. For thin (0.25-1 mu m) gold metallization, the variation of the attenuation with frequency was found to be dependent on the geometry of the line. A good fit to the experimental data was obtained when the attenuation a was modeled as a=a/sub 0/f/sup n/, where a/sub 0/ and n are geometry dependent. The exponent n was found to be in the range 0.15-0.35, and to increase with increasing w/d ratio, which is interpreted to be due to a correspondingly varying frequency-dependent resistance and current distribution.Keywords
This publication has 8 references indexed in Scilit:
- Monolithic millimeter wave CPW circuitsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Experimental and theoretical characterizations of very thin coplanar waveguide and coplanar slow-wave structuresPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Characterization of conductor-backed coplanar waveguide using accurate on-wafer measurement techniquesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Asymmetrical coplanar waveguide with finite metallization thickness containing anisotropic mediaPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- 5-100 GHz InP CPW MMIC 7-section distributed amplifierPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Full-wave analysis of conductor losses on MMIC transmission linesIEEE Transactions on Microwave Theory and Techniques, 1990
- Considerations in the Use of Coplanar Waveguide for Millimeter-Wave Integrated CircuitsIEEE Transactions on Microwave Theory and Techniques, 1986
- Formulas for the Skin EffectProceedings of the IRE, 1942