Title :
Novel TE10δ rectangular-waveguide-type resonators and their bandpass filter applications
Author :
Hwang, Hee Yong ; Yun, Sang-Won
Author_Institution :
Dept. of Electron. Eng., Maryland Univ., College Park, MD, USA
fDate :
7/1/2002 12:00:00 AM
Abstract :
New dielectric-filled rectangular-waveguide-type TE10δ resonators are presented. A dielectric-filled rectangular waveguide section (WGS) has inductive impedance at the open-end faces. Using this property and the frequency dependency of the wave impedance of the WGS, we calculated the resonant frequency and the slope parameter of the waveguide-type resonators. The resonant frequency depends strongly on the width of the WGS and loosely on the height and the length. The calculated resonant frequencies agree well with measured data. One of the proposed bandpass filters shows highly reduced spurious up to three times the center frequency. Quality factors of the resonator and effects of a housing are also discussed
Keywords :
Q-factor; band-pass filters; dielectric resonator filters; dielectric-loaded waveguides; rectangular waveguides; waveguide components; waveguide filters; TE10δ rectangular-waveguide-type resonators; WGS height; WGS length; WGS width; bandpass filter applications; dielectric-filled rectangular waveguide section; dielectric-filled rectangular-waveguide-type resonators; housing effects; inductive impedance; open-end faces; quality factors; resonant frequency; slope parameter; wave impedance frequency dependency; waveguide-type resonators; Band pass filters; Dielectric materials; Electromagnetic fields; Electromagnetic waveguides; Equivalent circuits; Impedance; Magnetic resonance; Rectangular waveguides; Resonant frequency; Tellurium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2002.800445
