RECONFIGURABLE BANDPASS FILTERS USING DUAL-BEHAVIOR RESONATORS (DBR) AND RF MEMS
E. FOURN, C. QUENDO, E. RIUS, A. POTHIER, P. BLONDY, C. CHAMPEAUX, J.C. ORLIANGES, A. CATHERINOT, G. TANNÉ, F. HURET

Abstract. This paper deals with three different reconfigurable filters. They are all based on the DBR topology and used RF MEMS components to obtain agility. Continuous, independent and simultaneous variations of both the central frequency and the bandwidth are obtained with the first filter. The second one switches between two specifications in term of central frequency and bandwidth. Low-pass structures are introduced in this filter in order to keep a correct matching level in both pass bands. The last switchable filter associates DBR structure with coupled-lines filters to suppress spurious resonance.