Abstract: A tunable filter comprises at least two resonator circuits placed between two matching networks characterized in that: one resonator is connected at a first of its ends to the ground plane M of the filter by metallized holes and at a second end to a MEMS network; the distance between the two resonators forms an inter-resonator inductive coupling circuit; an inter-resonator coupling capacitor is formed by two etched lines connected to the first and second resonators; the MEMS networks are distributed around the ends of the resonators; the MEMS networks are connected between the first and second resonator and the ground plane M by means of metallized holes; and the filter comprises a number of independent electrical control voltages designed to actuate the MEMS.

Abstract: The invention relates to a wireless transmitting and receiving module including a radiofrequency module filtering and amplifying the wireless signals received, a high intermediate frequency module transposing the wireless signals received to a high intermediate frequency, the transpositions being carried out by mixing of the wireless signals with signals of known frequency generated by local oscillator modules, and a low intermediate frequency module transposing the wireless signals received to a low intermediate frequency. In particular, the invention applies to the radiocommunication software modules that can receive and/or transmit on the broad band, that is to say in a frequency range from 30 MHz to 3 GHz.

Abstract: The invention relates to a wireless transmitting and receiving module including a radiofrequency module filtering and amplifying the wireless signals received, a high intermediate frequency module transposing the wireless signals received to a high intermediate frequency, the transpositions being carried out by mixing of the wireless signals with signals of known frequency generated by local oscillator modules, and a low intermediate frequency module transposing the wireless signals received to a low intermediate frequency. In particular, the invention applies to the radiocommunication software modules that can receive and/or transmit on the broad band, that is to say in a frequency range from 30 MHz to 3 GHz.

Abstract: A switched capacitor is characterized in that it comprises a series MEMS-type switch, the capacitor to be switched being integrated into the structure of the MEMS switch and being formed by an additional metal layer produced on part of the dielectric layer of the MEMS switch, the capacitance of the switched capacitor being set as a function of the area of the metal layer.

Abstract: A voltage-controlled oscillator including a dielectric resonator having a ferroelectric ceramic material placed between two metallized surfaces and biased by an electric field created by a difference in potential applied between the two surfaces as a function of a tuning frequency of the oscillator. Also included is a load impedance, and an active amplifier element coupled between the dielectric resonator and the load impedance. Further, the ceramic material is formed by metal oxides of the family: Bax;Sr(1-x) Ti(1-y)(A)y O3 (1) in which: A is a constituent configured to reduce dielectric losses of the material, and −0.4≲×≲0.9−0.001≲y≲0.2.