W波段小型化锁相源  

Phase locked W band Oscillator

作　　者：张永鸿[1] 吴正德[1] 唐小宏[1] 樊勇[1] 

机构地区：[1]电子科技大学应用物理所,成都610054

出　　处：《电子科技大学学报》1999年第4期353-356,共4页Journal of University of Electronic Science and Technology of China

摘　　要：根据基波锁相、谐波提取的思想，采用双环数字锁相方式，实现了Ｗ 波段二次谐波耿氏锁相振荡器；分析了混频锁相环中输出端口与中频端口相位抖动的关系，指出了从自身中频端口测试相噪的局限性。该锁相源频率为９３ ＧＨｚ，射频偏离载波５０ ＫＨｚ 时，相噪为－ ７０ ｄＢｃ／Ｈｚ ，输出功率大于１０ ｍ Ｗ。According to the idea of extracting harmonic power while phase locking the fundamental,a phase locked W band second harmonic two port Gunn oscillator is developed, with two phase locked loops. The relationship of phase shaking between the signals of millimeter wave and intermediate frequency is analyzed. Meanwhile the limitation of phase noise determined by internal phase locked intermediate frequency is pointed out. The phase locked oscillator, whose output power is over 10 mW and phase noise is -70 dBc/Hz @50 kHz, may be use as local oscillator or others.

关 键 词：相噪 锁相源 W波段 毫米波振荡器 小型化 

分 类 号：TN752.7[电子电信—电路与系统] TN911.8