Design and realization of high-performance microwave and millimeter wave band-pass filters on thin polymer films
Résumé
This paper reports the design and manufacturing of microstrip band-pass filters with good performance in terms of both insertion loss and selectivity. The proof of concept is carried out on thin BCB polymer (70 µm) film very used in microelectronics thanks to its low loss tangent (tanδ = 0.0025). The studied filters are constituted of two resonators and they combine the compactness of microstrip resonators and the connection facility of coplanar pads due to microstrip - grounded coplanar waveguide transitions integrated with the filters.