Two kind of structure configurations small size LTCC filters

The design of two kind structure configurations of LTCC filters was introduced, which is based on classical design theory of bandpass filter. The first kind of filter uses conventional LC -type resonators with a feed back capacitor between the input and output. The second kind of filter exploits multilayer coupled stripline structure configuration, the structure shows the promising application potential in miniaturized RF components. The measured results of first kind of filter agree very well with the full-wave electromagnetic simulation results. Comparisons between these two kinds of filters are made for guiding filter design.