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射频振荡器一直是射频电路设计的难点,针对在射频振荡器设计方面压控振荡器的设计资料较多,而对于工作在固定频率点的振荡器设计实例较少的情况,设计了一种工作在2.3GHz的负阻振荡器,并通过计算机优化设计使该振荡器具有较低的相位噪声特性,由实测结果显示,输出功率可达到5.23dBm,在振荡器振荡中心频率为2.27GHz时,相位噪声为-109.82dBc/Hz@600kHz.而且该电路结构简洁,便于集成电路设计。
RF oscillator has been a difficult RF circuit design, design of the RF oscillator for the design of more information, and work for a fixed frequency point of the oscillator design examples of fewer cases, the design of a work The negative resistance oscillator at 2.3GHz has been designed by computer to make the oscillator have low phase noise characteristics. The measured results show that the output power can reach 5.23dBm. When the oscillation center frequency of the oscillator is 2.27GHz, the phase The noise is -109.82dBc / Hz@600kHz. And the circuit structure is simple, easy for integrated circuit design.