Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.789178
