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Multiple reflection signals between the probe and the antenna is always ignored in frequency domain near field measurement, which can be reduced by technique such as time gate in the time domain near field measurement sometimes. There are few articles to study about influence of the multiple reflection error affecting the result of the test for it is difficult to determine multiple reflection signals...
A system using linear frequency modulation (LFM) source signal for time-domain near-field antenna measurements instead of traditional pulse signal has been established. It is shown that time-domain near-field antenna measurements using LFM signal are in a good agreement with theoretical calculation and simulation results. In the interval [−40°, 40°], the main lobe and the first side lobe error is...
The correction in frequency domain is different and constant in each frequency point, because of multi-reflection, waveguide transmission, coaxial conversion factors and many other factors. This article focuses on the system, explores the relationship between the parts that include the reflection, transmission attenuation, waveguide coaxial switch matching and probe receiving features and frequency,...
In this paper, the relationship between and the directivity the structural parameters of plate end-fire antennas was investigated. According to the analysis and experiments, the phase velocity of the slow surface wave propagating along this antenna is demonstrated to be a link between the structure parameters and antenna directivity. The point is the extended Hansen-Woodyard end-fire condition must...
At present, a complete measurement system has been built up successfully by our laboratory, besides its engineering implement has been accomplished also. We can show an antenna's radiation field in a form of 3D animation dynamically with this measurement system, which demonstrates the time-domain near-field measurement theory and the time-domain near-field measurement system are practical. The present...
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