Fast measurement of the reflection coefficient of the plate medium in the time domain

In order to solve the problems faced in the frequency domain measurement of the broadband reflection characteristics of materials in practical engineering,this paper proposes a fast test scheme for free-space ultra wideband reflection characteristics based on the time domain method.Through the construction of the time domain measurement system,the analysis of the extraction method of the pulse signal based on the "time window",the calculation of the reflection coefficient,etc.,the system advantages are comprehensively analyzed,and the actual measurement plan is formed.Measured results show that the scheme has the advantages of low measurement environment requirements,fast measurement speed,great convenience and high accuracy,and that the reflection coefficient of plate-like materials in the common radar band (2~18 GHz) can be obtained by one measurement.