The principle of multiple frequency phase shift scanning method was analyzed. The electro optic sampling system constructed with the multiple frequency phase shift scanning method was introduced. An integrated circuit chip of high speed GaAs dynamic freqnency dividing circuit was measured, and the measured frequency dividing waveform was presented.
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Tian Xiaojian Yi Maobin Sun Wei Jia Gang Sun Jianguo. THE ELECTRO OPTIC SAMPLING MEASUREMENT WITH MULTIPLE FREQUENCY PHASE SHIFT SCANNING METHOD[J]. Journal of Infrared and Millimeter Waves,1997,16(3):189~192