Title :
Development of miniature LTCC filter for TV broadcasting band by using substrates of mixed dielectrics
Author :
Hennings, Alexander ; Semouchkina, Elena ; Baker, Amanda ; Semouchkin, George ; Waser, Rainer ; Lanagan, Michael
Author_Institution :
RWTH Aachen, Aachen
Abstract :
Novel design opportunities for microstrip bandpass filters built by using layered substrates of mixed ceramic dielectrics having different permittivities are investigated on the example of a filter for UHF band. The possibilities to enhance and control the rejection band characteristics are demonstrated based on FDTD simulations and lumped element equivalent circuits. A miniature LTCC-filter of (3.6times2.8) mm2 size is presented. Measurements of the filter prototypes fabricated by using the multilayer LTCC technology have confirmed the design principles with good agreement.
Keywords :
UHF devices; band-pass filters; dielectric materials; equivalent circuits; finite difference time-domain analysis; microstrip filters; television broadcasting; FDTD simulations; TV broadcasting band; UHF band; lumped element equivalent circuits; microstrip bandpass filters; miniature LTCC filter; mixed ceramic dielectrics; mixed dielectrics; multilayer LTCC technology; Band pass filters; Ceramics; Circuit simulation; Dielectric substrates; Equivalent circuits; Finite difference methods; Microstrip filters; Permittivity; TV broadcasting; Time domain analysis;
Conference_Titel :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405330
