Alcatel Thomson Faisceaux Hertziens

Alcatel Thomson Faisceaux Herziens

Isaac Mettoudi

An oscillator having a dielectric resonator and being electronically tuned in frequency by a varactor, in particular in the 22 GHz range, the oscillator comprising an active electronic component having negative resistance (17), at least two dielectric resonators (40, 41), and a substrate (13) on the surface of which there are three striplines (10, 11, 12), with the first and second striplines (10 and 11) being in line and having their adjacent ends connected to two respective electrodes of the active component (17). The third stripline (12) which runs parallel to the first two striplines (10, 11) is connected to the varactor (26), with all of the dielectric resonators (40, 41) being coupled to the first stripline (10).

Oscillator having a dielectric resonator, and electronic frequency

A frequency multiplier according to the invention comprises a coaxial input, an elastic device constituted by two parts sliding within one another, the outer part having a flexible metal bellows and which is extended by a spring, an impedance matching low pass filter requiring no setting, an IMPATT VARISELF diode, a coaxial line, a waveguide transition regulating plunger, a waveguide, a diode holder whose position is regulatable in translation by a button, a cavity tuned to a harmonic frequency, a mobile short-circuit closing the cavity and which is regulatable in translation by means of a knurled wheel in order to adjust the resonant frequency of the cavity to a harmonic frequency and a pin screw immobilizing in rotation the diode holder and the mobile short-circuit.

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Levallois Perret, France

Isaac Mettoudi