低相噪高次倍频源的研制  

The Design of Low Phase Noise High-otder Frequency Multiplier Sources

作　　者：陈捷平 段泽群[1] 朱君范[1] 

机构地区：[1]成都电子科技大学微波中心

出　　处：《现代雷达》1995年第5期99-103,共5页Modern Radar

基　　金：电子部预研基金

摘　　要：阐述了低噪声高次倍频器的设计原理和组成部分，介绍了已研制成功的高性能低相噪Ｘ波段１００次倍频频率源，经用ＨＰ３０４７Ａ相噪测试系统严格测量，当载频为９．３ＧＨｚ、偏离载频１ｋＨｚ和１００ｋＨｚ时，其单边带相位噪声分别达－１０８ｄＢｃ／Ｈｚ和－１２２ｄＢｃ／Ｈｚ。分析表明，所用１００次倍频器的附加相噪，其理论值达到２０ｌｏｇＮｄＢ（Ｎ为倍频次数）。The design principles and sttucture of low noise high order frequency multipli-ers have described in this paper. The designed excellent low phase noise X-band 100 times frequen-cy multiplier sources have introduced also. Measured strictly with HP3047A phase noise measure-ment system, the specifications ot SSB phase noise of 9.3 GHz frequency multiplier source are-108 dBc/Hz and-122 dBc/Hz offset 1 kHz and 100 kHz ,respectively. The result of this experi-ment shows that the additive phase noise of the 100 times frequency multiplier corresponds with the theory calculation 20logN dB(N is multiplier factor ).

关 键 词：倍频器 相位噪声 频率源 

分 类 号：TN771[电子电信—电路与系统]