Thales

Gilles Neveu

Jean-Luc De Gouy

Afshin Ziaei

Pascal Gabet

Matthieu Le Baillif

Michel Giraudo

Marie-Pierre Dussauby

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.

Filter that is variable by means of a capacitor that is switched using MEMS components

In a frequency divider enabling the division by N of a frequency Fe and comprising at least one prescaler followed by a division chain, the prescaler has at least one input for the frequency signal Fe to be divided, one input for a command NA of the basic division rank of the prescaler and one input for a command &#x394;NA coming from the division chain and enabling NA to be made to vary by one unit; the division chain comprises at least one division stage (K) comprising at least one divider by 2, giving a divided frequency F(K), a switch controlled by the divider by 2, the switch having one input for a piece of programming data R(K), one input for the carry signal RX(K+1) of the next stage and one output for the carry signal RX(K) for the previous stage. Application to the field of phase-locked loop frequency synthesis.

Frequency divider with funnel structure

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Gennevilliers, France

Gilles Neveu