Title :
Design and analysis of iris-coupled and dielectric-loaded 1/8-cut TE01-mode microwave bandpass filters
Author :
Amari, Smain ; Bornemann, Jens ; Laisné, Alexandre ; Vahldieck, Rüdiger
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
3/1/2001 12:00:00 AM
Abstract :
The design and analysis of iris-coupled and dielectric-loaded 1/8-cut TE01-mode filters is performed using globalized local solutions of Maxwell´s equations as basis functions. It is found that this set of basis functions outperforms other edge-conditioned basis functions. To reduce the size of the filter and increase the Q factor of the resonators, dielectric rings with high dielectric constant are employed in the same design technique. The dimensions of the resonators are determined to accurately take into account the effect of coupling on their resonant frequencies, thereby reducing the need of tuning. Numerical results are compared with those obtained from the finite-element method (HP HFSS) and the mode-matching technique. Good agreement is demonstrated
Keywords :
Q-factor; band-pass filters; dielectric resonator filters; finite element analysis; integral equations; microwave filters; mode matching; HP HFSS; Maxwell equations; Q-factor; basis function; coupled integral equation technique; dielectric constant; dielectric ring; dielectric-loaded resonator; finite element method; iris coupling; microwave bandpass filter; mode matching; resonant frequency; Band pass filters; Dielectrics; Electromagnetic waveguides; Integral equations; Maxwell equations; Microwave filters; Narrowband; Resonant frequency; Resonator filters; Tellurium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
