Microwave oscillator integrated in a waveguide
AssigneeThomson Hybrides et Microondes
InventorsNarquise Mamodaly, Jean Stevance
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Abstract
A microwave oscillator integrated in a waveguide includes a negative-resistance diode encapsulated in a capped micromodule, a capacitor fixed on the cap, a resonator fixed on the capacitor and a metallic strip fixed on the capacitor and on a grounding stud. The metallic strip constitutes a device for coupling the diode with the auxiliary load and with the resonator. Outside the resonance frequency of the resonator, no oscillation is possible since the diode is in that case loaded by a low resistance and is not capable of oscillating. The dielectric resonator is the only element which resonates, thus endowing the oscillator with high stability.
Claims6
A microwave oscillator stabilized by a dielectric resonator, integrated in a waveguide and including a negative-resistance diode encapsulated in a micromodule closed by a metallic cap in dielectric contact with said diode, wherein said oscillator is provided in addition with a coupling loop connected on the one hand to a capacitor which is in turn connected to the diode cap and on the other hand to ground in order to ensure good coupling with an auxiliary load in the waveguide and with the dielectric resonator which constitutes the only resonant element in the oscillator.
Dependencies are inferred from the claim text.