Compact Broadband Filters for Hybrid Circuits using Flip-Chip-Technology
Torben Baras, Faisal Muhammad, Arne F. Jacob
German Microwave Conference - GeMiC 2006 -
1st January 0001
A compact broadband filter is presented. The design is based on a microstrip substrate wherein half of the filter is located on a thinfilm chip and mounted in flip-chip fashion. Revealing a fractional bandwidth of as much as 50% and a measured insertion loss less than 1.5 dB at 20 GHz, the required real-estate remains small compared to state-of-the-art designs. Exemplarily, a hybrid K-Band doubler and buffer-amplifier were realized solely using flip-chip-technology in conjunction with the developed filters. Measured results agree very well with predictions from commercial software tools.
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