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

fYear

2010

fDate

28-30 Sept. 2010

Firstpage

5

Lastpage

8

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2010 European

Conference_Location

Paris

Print_ISBN

978-1-4244-7232-1

Type

conf

Filename

5616454