关键词: 倍频器, 附加相位噪声, 鉴相器法, 双通道互相关法

Abstract: Frequency multipliers are key components in the signal generation chains of radar and communication systems, and there added phase noise is one of the most critical specification, measuring it is challenging. To help testers, explained the mechanism of added phase noise in frequency multipliers, as well as analyzed the phase detector method and cross correlation in measuring added phase noise. A frequency doubler´s added phase noise was tested using the two methods, and the results confirm the correctness of the measurement process. This systematic study will be helpful to measure the added phase noise of the RF frequency converters.

Key words: requency multipliers, added phase noise, phase-differential method, two-channel cross-correlation method