Oscillators – Plural oscillators – Parallel connected
Patent
1994-07-28
1995-07-11
Grimm, Siegfried H.
Oscillators
Plural oscillators
Parallel connected
331 99, 331107P, 331107SL, 331172, H03B 518, H03B 714, H03B 914
Patent
active
054324823
ABSTRACT:
An injection-locked variable-frequency high-power microwave frequency generator includes an injection source, a circulator, and an oscillator. The circulator includes an injection port to the injection source, an oscillator port to the oscillator, and a transmission port. The circulator directs the injection signal from the injection source into the oscillator and directs the oscillator output out the transmission port. The oscillator includes an IMPATT diode and a microstrip matching circuit. The matching circuit provides the sufficient conditions for broadband (9.1-9.5 GHz) oscillation of the diode. To this end, the matching circuit provides three resonators having three different but closely coupled resonant frequencies. The matching circuit also serves as a transformer, providing impedance matching to the circulator. A high-power output can be chirped or otherwise controlled by electronic control of the injection frequency.
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