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A study of high frequency performance of coplanar waveguide as a function of substrate thickness

Collier, R.J., Edgar, D.L., Yip, J., Jastrebski, A.K., Li, D., Elgaid, K., McLelland, H., Ferguson, S., Williamson, F., Ross, A., Doherty, F. and Thayne, I.G. 2007. A study of high frequency performance of coplanar waveguide as a function of substrate thickness. Presented at: 30th European Microwave Conference 2000, Paris, France, 2-5 October 2000. 2000 30th European Microwave Conference. IEEE, pp. 1-3. 10.1109/EUMA.2000.338733

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Abstract

A theoretical model is derived which predicts the critical frequency above which coupling between Coplanar Waveguide and substrate modes occurs, and some design curves are presented. The measured performance of Coplanar Waveguide components is reported as a function of substrate thickness (GaAs) in the frequency range 0.04-110 GHz, and demonstrates improved mm-wave performance of transmission lines and short circuit elements on thinned substrates due to a reduction in moding, as predicted by the theoretical analysis.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: IEEE
Last Modified: 16 Mar 2020 13:45
URI: http://orca-mwe.cf.ac.uk/id/eprint/122568

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