Effect of uncertainties in the cross-sectional parameters on the wideband electrical properties of coplanar waveguides

Author

Leinhos, J. ; Arz, U.

Author_Institution

Phys.-Tech. Bundesanstalt, Braunschweig

fYear

2007

fDate

13-16 May 2007

Firstpage

35

Lastpage

38

Abstract

We investigate the effect of uncertainties in the cross- sectional parameters of ungrounded coplanar waveguides (CPWs) on the characteristic impedance and the propagation constant. For our calculations, a quasi-TEM model is used that takes into consideration the effects of non-ideal conductors, substrate loss and finite metallization thickness. The propagation of uncertainties is studied with the aid of Monte Carlo (MC) simulations. The effect of different manufacturing technologies is exemplified by two typical microwave substrates (AF45 and AI₂O₃). Furthermore, the impact of the uncertainties in the input quantities is investigated in such a way that conclusions for the design of CPWs as well as for the requirements on the accuracy of material measurement methods can be drawn.

Keywords

Monte Carlo methods; conductors (electric); coplanar waveguides; electric properties; substrates; Monte Carlo simulations; cross-sectional parameters; finite metallization thickness; microwave substrates; nonideal conductors; quasiTEM model; substrate loss; uncertainties; ungrounded coplanar waveguides; wideband electrical properties; Conductors; Coplanar waveguides; Impedance; Manufacturing; Metallization; Microwave propagation; Monte Carlo methods; Propagation constant; Uncertainty; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Propagation on Interconnects, 2007. SPI 2007. IEEE Workshop on

Conference_Location

Genova

Print_ISBN

978-1-4244-1223-5

Electronic_ISBN

978-1-4244-1224-2

Type

conf

DOI

10.1109/SPI.2007.4512202

Filename

4512202