%0 Journal Article
%A Hennings, A.
%A Semouchkina, E.
%A Baker, A.
%A Semouchkin, G.
%T Design optimization and implementation of bandpass filters with normally fed microstrip resonators loaded by high-permittivity dielectric
%J IEEE transactions on microwave theory and techniques
%V 54
%@ 0018-9480
%C New York, NY
%I IEEE
%M PreJuSER-58104
%P 1253 - 1261
%D 2006
%Z Record converted from VDB: 12.11.2012
%X Different approaches for designing bandpass filters with transmission zeroes are investigated by using the transmission-line theory and the finite-difference time-domain method. The filters are composed of capacitively coupled uniform impedance microstrip resonators, stepped-impedance microstrip resonators, and tapped feed lines. Different design modifications are discussed and, as a result, a design with double-coupled resonators is proposed. Based on this structure, a miniaturized filter capacitively loaded by high-permittivity dielectric inclusions and fabricated by using low-temperature co-fired ceramic (LTCC) technology is presented. The measured and simulated S-parameter spectra of the LTCC-filter are in good agreement.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000236081500033
%R 10.1109/TMTT.2006.869709
%U https://juser.fz-juelich.de/record/58104