基于三极管的倍频器研究  

The research of frequency multiplier based on transistor

作　　者：王凌云[1,2] 徐轻尘[1] 宋亮[1] 

机构地区：[1]中国科学院国家空间科学中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《电子设计工程》2017年第17期78-80,84,共4页Electronic Design Engineering

摘　　要：三极管倍频器是根据晶体三极管的非线性特性,得到输入信号的各次谐波,然后通过带通滤波器选出所需要的频率,从而实现输入信号的倍频。文中详细阐述了三极管倍频电路的设计,实现了对10 MHz输入信号的四倍频,通过电路测试,结果证明输出信号的相噪没有明显恶化,在1 MHz带宽内相噪优于-80.87 dBc/Hz,在100 kHz内杂散抑制可达-79.54 dBc/Hz,满足设计需求。According to the nonlinear characteristic of the transistor, the input signal＇s harmonic can be obtained at the output,and then with bandpass filter to select the required frequency, the transistor frequency multiplier can be achieved. A design of frequency quadruplet by transistor is discussed detailedly in the article. The system is tested, the experimental results demonstrate that the phase noise is better than 80.87 dBc/Hz within 1 MHz bandwidth, and the spurious inhibition can reach 79.54 dBe/ Hz within the 100 kHz, which meet the design requirements.

关 键 词：三极管 倍频 非线性特性 相位噪声 

分 类 号：TN771[电子电信—电路与系统]