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介绍了一种由商用InGaP/GaAs异质结双极晶体管工艺制成、基于负阻原理的单片压控振荡器,此电路定位于5GHz频段下的无线应用.在实际使用中,除了旁路和去耦电容外,无需外接其他外部元件.测试得到的输出频率范围超过300MHz,为4.17～4.56GHz,与仿真结果非常吻合;相位噪声为-112dBc/Hz@1MHz;在3.3V电源电压下,其核心部分的直流功耗为15.5mW,输出功率为0～2dBm.为了与其他振荡器比较,还通过计算得到了相位噪声优值,约为-173.2dBc/Hz.同时,还讨论了负阻振荡器的原理和设计方法.
A kind of voltage controlled oscillator based on negative resistance principle, which is made of commercial InGaP / GaAs heterojunction bipolar transistor technology, is introduced and applied to wireless applications in the 5GHz frequency band.In the practical application, And decoupling capacitors, no external external components required. The test output frequency range over 300MHz, 4.17 ~ 4.56GHz, and simulation results are in good agreement; phase noise -112dBc / Hz @ 1MHz; 3.3V power supply voltage, The core part of the DC power consumption of 15.5mW, the output power of 0 ~ 2dBm. In order to compare with other oscillators, but also calculated the phase noise excellent value of about -173.2dBc / Hz. At the same time, also discussed the negative resistance Oscillator principle and design method.