一种C波段低相噪锁相频率源的研制  

Development of a C-band Low Phase Noise PLL Frequency Source

作　　者：苗一新[1] 曾瑞锋[1] 杨磊[1] 许庆[1] 

机构地区：[1]南京电子器件研究所,南京210016

出　　处：《固体电子学研究与进展》2015年第5期453-457,共5页Research & Progress of SSE

摘　　要：提出了一种采用同轴介质谐振压控振荡器(CDRVCO)模式的锁相频率源设计方案,利用其低相噪、高Q值和高频率稳定度的优点,通过对锁相源合理的电路设计、仿真与实验,研制了一款C波段低相噪、单点频率为7 850 MHz的频率源。对样品的测试表明该频率源达到了预期的技术指标,测试结果为:工作频率为7 850 MHz时,相位噪声为-96dBc/Hz/1kHz、-98dBc/Hz/10kHz、-120dBc/Hz/100kHz、-143dBc/Hz/1MHz,近端参考杂散抑制>-95dBc。A PLL frequency source design by using coaxial dielectric resonator voltage-controlled oscillator(CDRVCO)was presented,which had the advantages of low phase noise,high Q value and high frequency stability.Based on the reasonable PLL frequency source circuit design,simulation and experiments,a C-band low phase noise frequency source of 7 850 MHz was developed.Sample testing results show that the frequency source has achieved the desired technical specifications.The phase noise test results of the frequency source of 7 850 MHz are listed:-96dBc/Hz/1kHz,-98dBc/Hz/10 kHz,-120dBc/Hz/100 kHz,-143dBc/Hz/1MHz and the proximal reference spurious suppression is bigger than-95 dBc.

关 键 词：同轴介质谐振压控振荡器 环路滤波器 相位噪声 

分 类 号：TN74[电子电信—电路与系统] TN752