Research on the Offset of Elliptical Quiet Zone in CATR of Multiple Feed

doi:10.16182/j.issn1004731x.joss.20-0153

Journal of System Simulation ›› 2021, Vol. 33 ›› Issue (6): 1374-1383.doi: 10.16182/j.issn1004731x.joss.20-0153

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Research on the Offset of Elliptical Quiet Zone in CATR of Multiple Feed

Liu Yong¹, Guo Liwei^2,*, Song Wangyang³, Jiang Xing², Li Simin^2,4, Peng Lin²

1. Unit 92941 of CPLA, Huludao 125000, China;
2. Guilin University of Electronic Technology, Guilin 541004, China;
3. Science and Technology on Special System Simulation Laboratory, Beijing Simulation Center, Beijing 100854, China;
4. Guangxi University of Science and Technology, Liuzhou 545005, China

Received:2020-03-30 Revised:2020-06-05 Online:2021-06-18 Published:2021-06-23

Abstract

Abstract: Electromagnetic target simulator based on CATR of the quiet zone movement,which adopt the multi-feed source CATR RF signal feeding by reflecting to get the quiet zone movement of simulated far field. It can be used in simulation of seekers in a multi-target mobile environment. The phase of the feeds of the 1×4 horn array is changed to realize the movement of the quiet zone in the CATR. The phase consistency of the millimeter wave quiet zone of the target simulation system determines the target simulation accuracy. The amplitude and phase characteristics of the array feeding with different beam directions are analyzed in detail. When the main beam points at ±5° and ±10°, the amplitude and phase distribution of the elliptical quite zone moves along the ±y-axis direction respectively. The utilization rate of the quiet zone along the x-axis reaches more than 28.1%.

Key words: array feed, Compact Antenna Test Range(CATR), Quiet Zone(QA), electromagnetic target simulator

CLC Number:

TN82
TP391.9

Liu Yong, Guo Liwei, Song Wangyang, Jiang Xing, Li Simin, Peng Lin. Research on the Offset of Elliptical Quiet Zone in CATR of Multiple Feed[J]. Journal of System Simulation, 2021, 33(6): 1374-1383.

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Research on the Offset of Elliptical Quiet Zone in CATR of Multiple Feed

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