Microwave up-converter
AssigneeL.M.T. Radio Professionelle
InventorsMaurice Marchand, Christian Petijean
Life of this patent
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Abstract
An up converter having on the one hand an ultrahigh-frequency ring receiving one of the waves to be mixed and on the other hand a transformer receiving the other wave to be mixed whose frequency is in the radio-electric range. The transformer is connected to the ring through a bridge of mixer diodes which are placed with this transformer and a capacitor for tuning this latter inside the ring. The resulting wave exits from the ring through a waveguide having two traps tuned to the frequency of the wave applied to the ring.
Claims6
An up converter for mixing a first radio-frequency wave with a second ultrahigh-frequency wave and for obtaining a third ultrahigh-frequency wave, which comprises:
- a mixer diode bridge;
- a coil for feeding the first wave to the mixer diode bridge;
- a microstrip ring;
- a first microstrip waveguide for feeding the second wave to this ring;
- a second and a third microstrip waveguide for connecting the diode bridge to the ring;
- a fourth microstrip waveguide for extracting the third wave from the ring.
Dependencies are inferred from the claim text.