| 摘要 |
A resonance circuit for a balanced oscillator which does not become unbalanced at the time of band switching f the balanced oscillator is provided. A resonance circuit for a balanced oscillator comprises; first and second terminals (a, b), a varactor diode (7) which is connected between the first and second terminals and to which a tuning voltage for changing the oscillation frequency is supplied, a first inductor (8) which is connected between the first and second terminals, second and third inductors (9, 10) connected in series between the first and second terminals, and a switching means (11) for connecting or disconnecting the second and third inductors in a high frequency manner is provided between the second and third inductors. <IMAGE> |
