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Error-Theory Analysis and Correction for Ultra-Low Sidelobe Array Antenna

Author: SunJiYu
Tutor: YangZuoYuan
School: Harbin Engineering University
Course: Communication and Information System
Keywords: Ultra-low sidelobe antenna Planar near field measurement Random amplitude and phase errors The limited scanning plane truncation error Test environment scattering error
CLC: TN820
Type: Master's thesis
Year: 2004
Downloads: 205
Quote: 0
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Abstract


This paper studies the impact on the antenna performance and the compensation method using near-field scanning technique to measure ultra-low sidelobe antenna , when several major sources of error . This paper first introduces the background and status of the near-field measurement techniques , given the basic theory and knowledge of the near-field scanning , and then create a ultra-low sidelobe antenna sidelobe measuring the total error measured antenna parameters , the near-field amplitude and phase measuring the overall error in the mathematical model and analysis of the expression of random amplitude and phase errors to produce error spectrum ; truncation caused by multiple reflections in the measuring error, between the antenna and the probe measurement errors caused by the finite scan plane , microwave darkroom not measurement error caused by the electrical characteristics of the ideal of the error introduced by the antenna far field pattern circles ; antenna array model for the first time using less random amplitude and phase errors , limited scanning plane truncation error of the ultra - low sidelobe antenna far field pattern sidelobe magnitude of the impact of computer simulation , and achieved good results , in order to verify certain generally applicable significance transform the theoretical error analysis method based on the near and far field ; Finally, the two angles from the time domain and frequency domain reduce these sources of error introduced by measurement error on the amendment random amplitude and phase error average method and compensation limited scanning surface truncation error method to expand the scanning plane , computer simulations have proved that they are corrected near-field measurement error of a more effective way .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > General issues
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