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US 4,539,530 AGranted
Transistorized microwave oscillator of oscillation frequency multiplying type
AssigneeNippon Electric Co., Ltd.
InventorsMotoo Mizumura, Kenzo Wada
Life of this patent
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Abstract
A transistorized microwave oscillator comprising a resonator 2 coupled to a transistor 4, 5 and a feedback capacitor 7' around the transistor which produces a fundamental oscillation frequency and harmonics thereof. The feedback capacitor is located within a cut-off waveguide 21 and couples oscillations into the waveguide which blocks the lower undesired frequencies.
Claims18
A transistorized microwave oscillator comprising:
- oscillating means, including a transistor for oscillation and feedback means, for generating a fundamental oscillating frequency and harmonic components thereof;
- and a cutoff waveguide connected to said oscillating means for cutting off at least said fundamental oscillating frequency to provide a needed harmonic, wherein a part of said feedback means comprises means for coupling said oscillating means to said cutoff waveguide.
A transistorized microwave oscillator comprising:
- oscillating means, including a transistor for oscillation and feedback means, for generating a fundamental oscillationg frequency and harmonic components thereof;
- and cutoff waveguide connected to said oscillating means for cutting off at least said fundamental oscillating frequency to provide a needed harmonic, wherein said feedback means is provided within said cutoff waveguide and a part of said feedback means couples said oscillating to said cutoff waveguide.
Dependencies are inferred from the claim text.