基于取样混频的宽带低相噪频综研究  

Research of Broadband and Low Phase Noise Synthesizer Based on Sampling Mixing Scheme

作　　者：周叶华[1] 叶宝盛[1] 胡骥[1] 卢胜军[1] 

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2013年第1期32-35,共4页Communication Countermeasures

摘　　要：提出了一种新型的宽带低相噪频综方案。该方案将取样混频技术和数字鉴相技术相结合,可以有效避免取样锁相环技术的捕获问题。从电路设计、理论分析等方面介绍了该方案。实测结果与仿真结果较为吻合,并且获得了可与目前取样锁相技术相比拟的低相噪性能,进一步验证了该方案的可行性。A novel approach to the design of broadband and low phase noise synthesizer is presented. Capture prolbem in sampling phase-locked synthesizer is avoided .Some design principles are provided. It is proved that the experimental results are consistent with the simulation results ,but also low phase noise similar to the performance of sampling phase-locked synthesizer is achieved by the sampling mixing being combined with digital phase detector.

关 键 词：取样混频 数字鉴相 宽带频率合成 

分 类 号：TN74[电子电信—电路与系统]