Title :
A new finite element method formulation applied to DR microwave filter design
Author :
Madrangeas, V. ; Aubourg, M. ; Guillon, Pierre ; Vigneron, S. ; Theron, B. ; Parise, D.
Author_Institution :
IRCOM, Limoges Univ., France
Abstract :
A 3-D finite-element formulation for computing electromagnetic and electrical parameters of microwave dielectric resonator (DR) devices is presented. A comparison of theoretical and experimental results shows the usefulness of the formulation. More accurate results could be obtained by using second-degree NEDELEC polynomials. The results should lead to the realization of a compact high-power bandpass elliptic filter using TM/sub 110/ parallelepiped DR modes, which have low loss and fewer spurious characteristics.<>
Keywords :
band-pass filters; dielectric resonators; finite element analysis; microwave filters; 3-D finite-element formulation; DR microwave filter design; TM/sub 110/ parallelepiped DR modes; electrical parameters; finite element method; high-power bandpass elliptic filter; loss; microwave dielectric resonator; second-degree NEDELEC polynomials; spurious characteristics; Band pass filters; Circuits; Electromagnetic coupling; Equations; Finite element methods; Microwave devices; Microwave filters; Microwave theory and techniques; Polynomials; Resonant frequency;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99608
