Analyses of elliptical coplanar coupled waveguides and coplanar coupled waveguides with finite ground width
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol.54, no.4, pp.1388-1395, 2006 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 54 Issue: 4
- Publication Date: 2006
- Doi Number: 10.1109/tmtt.2006.871354
- Journal Name: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1388-1395
- Keywords: computer-aided design (CAD) oriented, conformal mapping, coplanar coupled waveguides (CCPWs), elliptical CCPWS, TRANSMISSION-LINES, STRIP
- TED University Affiliated: No
Abstract
In this paper, the quasi-TEM characteristic parameters of elliptical coplanar coupled waveguides and coupled coplanar waveguide with a finite ground width configuration are presented and analyzed. Computer-aided design (CAD)-oriented fast, simple, and accurate analytic formulas are derived by using conformal mapping techniques, which provide satisfactory accuracy at microwave frequencies and lead to closed-form analytical solutions suitable for CAD software packages. The results for the odd- and even-mode characteristic impedance, effective dielectric constant, and coupling coefficient have been computed by these formulas. Good agreement between the present results and published results [1] is observed. For the planar case, simulations have also been undertaken with Sonnet electromagnetic-circuit solver software. The computed results agree well with those of the simulation ones.