On the FEM treatment of wedge singularities in waveguide problems

Author

Juntunen, J.S. ; Tsiboukis, T.D.

Author_Institution

Radio Lab., Helsinki Univ. of Technol., Finland

Volume

1

fYear

1999

fDate

11-16 July 1999

Firstpage

464

Abstract

In modern micro- and millimeter wave technology, there exist many different devices based on microstrip lines. These include coplanar waveguides, patch antennas, filters, power dividers, directional couplers etc. In this work, a simple and computationally advantageous extension to a standard 2D polynomial finite element basis is introduced to cope with wedge singularities in uniform cylindrical structures. To enhance the computation, variable-order elements are used.

Keywords

Helmholtz equations; error analysis; finite element analysis; microstrip components; microstrip lines; microwave devices; millimetre wave devices; waveguide theory; 2D polynomial finite element; FEM treatment; Helmholtz equation; coplanar waveguides; directional couplers; eigenvalues; error estimate; filters; microstrip lines; microwave technology; millimeter wave technology; patch antennas; power dividers; uniform cylindrical structures; variable-order elements; waveguide problems; wedge singularities; Coplanar waveguides; Directional couplers; Finite element methods; Microstrip; Millimeter wave devices; Millimeter wave technology; Patch antennas; Polynomials; Power dividers; Power filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1999. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-5639-x

Type

conf

DOI

10.1109/APS.1999.789178

Filename

789178