Spline boundary element method for coplanar waveguides

Author

Qi, S. ; Yang, Q.

Author_Institution

State Key Lab. of Millimeter Wave, Southeast Univ., Nanjing, China

fYear

1993

fDate

June 28 1993-July 2 1993

Firstpage

1704

Abstract

A novel approach, the spline boundary element method (SBEM), is proposed to analyze the quasi-static characteristics of the coplanar waveguide. The scalar potential and the Green function of the boundary integral equation in the SBEM are expanded in terms of the third order B-spline function. The total matrices in the proposed method become the singular and symmetric matrices, rather than the nonsingular and nonsymmetric matrices in the boundary element method (BEM). The number of discrete boundary knots is much smaller than that of the BEM due to the flexibility of the B-spline interpolation. Test results show that the new method can considerably reduce CPU time and memory, and is simpler and more efficient than the BEM.<>

Keywords

Green´s function methods; boundary integral equations; boundary-elements methods; computational complexity; coplanar waveguides; splines (mathematics); waveguide theory; CPU time; Green function; boundary integral equation; coplanar waveguides; discrete boundary knots; flexibility; quasi-static characteristics; scalar potential; singular and symmetric matrices; spline boundary element method; third order B-spline function; Boundary element methods; Coplanar waveguides; Green function; Integral equations; Interpolation; Laboratories; Millimeter wave technology; Spline; Symmetric matrices; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1993. AP-S. Digest

Conference_Location

Ann Arbor, MI, USA

Print_ISBN

0-7803-1246-5

Type

conf

DOI

10.1109/APS.1993.385529

Filename

385529