| 摘要 |
PURPOSE:To reduce the size and cost of a transistor (TR) oscillator by composing the oscillator except a resonance circuit of a TR, resistances, and capacitors, and making the obtained circuit into a monolithic-IC chip structure. CONSTITUTION:A microstrip line having relatively high Q is used as the resonance circuit 2, and the part except the resonance circuit is formed of the TR which does not use an inductance, resistances, and capactiors. This obtained circuit is made into the monolithic-IC chip structure 1. This IC chip and the resonance circuit using the microstrip line are coupled electromagnetically on the same substrate. Consequently, an IC chip of the same kind is used in a wide frequency band, so the size and cost of the TR oscillator are reduced. |
