| 摘要 |
An oscillator including, a parametric amplifier which has three branches at the terminals of a non-linear capacitor C(V). In the pump branch there is a negative resistance dipole (D) which is able to oscillate at frequency fp. One of the two other branches is matched to a resonant circuit (Cs) exhibiting a high Q factor at frequency fs, and the other branch is matched to a load impedance, namely that of resonant circuit (Co) at frequency fox(fo=fp-fs). A high level output signal fo is thus provided.
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