Title :
Miniaturized Ku-band filters in LTCC technology — Evanescent Mode vs. standard cavity filters
Author :
Schulte, Benedikt ; Ziegler, Volker ; Schoenlinner, Bernhard ; Prechtel, Ulrich ; Schumacher, Hermann
Author_Institution :
Innovation Works, EADS Deutschland GmbH, Ottobrunn, Germany
Abstract :
An miniaturized Evanescent Mode Cavity (EMC) filter was designed in Low Temperature Co-fired Ceramics (LTCC) technology as a Substrate Integrated Waveguide (SIW) component. The filter response and the Q-factor were measured and their temperature dependency was analyzed. The EMC-filter has a center-frequency of 15 GHz, a bandwidth of 554 MHz and a minimal insertion loss of -1.84 dB. The unloaded Q factor is 248. Additionally a similar filter design with standard cavities was re-fabricated on the same LTCC run. Both filters were compared in terms of component size, Q-factor, temperature dependency of different parameters and the sensitivity to manufacturing tolerances.
Keywords :
Q-factor; ceramics; microwave filters; substrate integrated waveguides; EMC filter; LTCC technology; Q-factor; SIW component; bandwidth 554 MHz; evanescent mode filters; filter response; frequency 15 GHz; insertion loss; loss -1.84 dB; low temperature co-fired ceramics; manufacturing tolerances; miniaturized Ku-band filters; miniaturized evanescent mode cavity filter; standard cavity filters; substrate integrated waveguide component; temperature dependency;
Conference_Titel :
Microwave Conference (EuMC), 2010 European
Conference_Location :
Paris
Print_ISBN :
978-1-4244-7232-1
