摘要
振荡器是通信系统中的关键器件,其性能对整个系统有着重要影响。文中介绍了利用负阻原理设计2.425GHz振荡器的方法。根据负阻原理,使用Agilent公司的ADS软件,采用S参数仿真和谐波分析方法,对振器振荡器进行了仿真设计。根据仿真结果加工了振荡器,并用频谱仪对其进行测量和分析。测得相位噪声为-122 d Bc/Hz@100 k Hz,谐波抑制为23.6 d B,达到了预期目标。
This paper introduced the method of designing a 2. 425 GHz oscillator by the principle of negative resistance. Based on the principle,with the help of the ADS software of Agilent company,using the S parameter simulation and harmonic balance analysis method,we designed the oscillator. We processed the oscillator according to the simulation results,moreover,we measured and analyzed it with spectrum analyzer. Phase noise less than-122 d Bc/Hz@ 100 k Hz,harmonic suppression more than 23. 6 d B.
出处
《电子科技》
2017年第4期11-14,18,共5页
Electronic Science and Technology
关键词
振荡器
负阻
谐波平衡
相位噪声
谐波抑制
oscillator
negative resistance
harmonic balance
phase noise
harmonic suppression
