| 摘要 |
PROBLEM TO BE SOLVED: To provide a 2-band oscillator capable of grounding the oscillation transistors of two oscillation circuits by using one capacitor for grounding and lowering an impedance in respective oscillation frequency bands. SOLUTION: The 2-band oscillator comprises: a first oscillation transistor which oscillates in a first frequency band; a second oscillation transistor which oscillates in a second frequency band higher than the first frequency band; the capacitor for grounding whose one end is connected to the high frequency grounding terminal of the second oscillation transistor and other end is connected to a grounding electrode; and an inductor whose one end is connected to the high frequency grounding terminal of the first oscillation transistor and other end is connected to one of the capacitor for grounding. COPYRIGHT: (C)2008,JPO&INPIT
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