X波段锁相混频频率合成器设计  

Design of X-band Phase-Lock and Mixing Frequency Synthesizer

作　　者：贾晶[1] 高玉良[1] 张路[1] 

机构地区：[1]空军雷达学院信息对抗系,湖北武汉430019

出　　处：《压电与声光》2011年第3期501-504,508,共5页Piezoelectrics & Acoustooptics

摘　　要：提出了一种低相噪、低杂散的X波段捷变频频合器的设计方案。首先利用P波段数字锁相环产生跳频基准信号,并通过精心选择器件和优化设计环路滤波器改善相噪和杂散性能,再与X波段频标信号上变频,产生所需信号。测试结果为相位噪声≤-91 dBc/Hz@10 kHz,杂波抑制≤-72 dBc,捷变频时间≤90μs。The paper puts forward a design method of X-band low phase noise and spurs frequency hopping synthesizer used by some IFF system.P-band DPLL forms the base hopping signal,by choosing equipments meticulously and optimizing loop filter to improve the performance of phase noise and spurs,which will be further mixed with X-band single frequency to form the finally required frequency.Test results show that the synthesizer hopping speed is less than 90 μs,phase noise is below-91 dBc/Hz@10 kHz and spurs below-72 dBc.

关 键 词：X波段 低相位噪声 低杂散 锁相环 ADS仿真软件 

分 类 号：TN74[电子电信—电路与系统]