电子元件与材料2018，Vol.37Issue(6)：63-67,5.DOI:10.14106/j.cnki.1001-2028.2018.06.013
串联分配对频率标准源相位噪声的影响
Influence of series distribution on phase noise of frequency standard
摘要
Abstract
The reasons for the deterioration of the frequency standard phase noise in series distribution method were studied. The principle of series distribution was described. The relationship between the noise factor, signal power and phase noise was de-duced. The noise factor and signal power of series distribution were simulated, and the deterioration of phase noise of the final stage was analyzed. Experiments and tests were carried out on an airborne project. After the frequency standard is distributed in series, the phase noise of the final stage is-139. 3 dBc/Hz@10 kHz, which is about 15 dB worse than the initial phase noise. After analysis and demonstration, a parallel distribution method was proposed. The phase noise of the final stage is -151. 5 dBc/Hz@10 kHz, which can basically meet the needs of the system. Finally, it is concluded that when the number of series is large, the phase noise of the fi-nal stage is greatly deteriorated, and the parallel distribution method is suggested.关键词
串联分配/频标源/相位噪声/噪声系数/信号功率/并联分配Key words
series distribution/frequency standard/phase noise/noise factor/signal power/parallel distribution分类
信息技术与安全科学引用本文复制引用
程明,姜建飞..串联分配对频率标准源相位噪声的影响[J].电子元件与材料,2018,37(6):63-67,5.基金项目
国防重点实验室基金(9140C130201150C13065) （9140C130201150C13065）
