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Oscillation detection technique by using Vector Network Analyzer

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摘 要:A Vector Network Analyzer(VNA)can be used to identify oscillation frequency of a signal source with moderate or low Radi
  • 【题 名】Oscillation detection technique by using Vector Network Analyzer
  • 【作 者】Ata Khalid LI Chong Lai Bun Lok David R S Cumming
  • 【机 构】School of Engineering University of Glasgow Department of Electronic and Electrical Engineering University College London
  • 【刊 名】《太赫兹科学与电子信息学报》2015年 第3期 382-388 408页 共8页
  • 【关键词】Vector Network Analyzer Scattering Parameters osci
  • 【文 摘】A Vector Network Analyzer(VNA)can be used to identify oscillation frequency of a signal source with moderate or low Radio Frequency(RF)power if certain care is taken according to experimental results.Unlike reported in the literature that a resonant peak of measured absolute value of reflection coefficient greater than 1 that corresponds to an oscillation frequency,we report that by observing the magnitude change of one-port reflection coefficient across the entire swept frequency range,a sudden peak or a dip corresponds to an oscillation frequency,this is more accurate than other reports.In addition,using modern VNA as a signal detection method can significantly reduce measurement time and increase measurement accuracy to VNA capability for developing emerging signal generating devices at early stage,especially for planar,large quantity and operating in a wide frequency range.
 
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