Title :
A Study of High Frequency Performance of Coplanar Waveguide as a Function of Substrate Thickness
Author :
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. ; Thayne, I.G.
Author_Institution :
Electronic Engineering Laboratory, The University of Kent, Canterbury CT2 7NT, Kent, UK
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.
Keywords :
Coplanar transmission lines; Coplanar waveguides; Coupling circuits; Frequency measurement; Gallium arsenide; Predictive models; Thickness measurement; Transmission line measurements; Waveguide components; Waveguide theory;
Conference_Titel :
Microwave Conference, 2000. 30th European
Conference_Location :
Paris, France
DOI :
10.1109/EUMA.2000.338733
