Simulation Research on Multi-antenna Coupled Radiation of Launch Vehicle in Tower

doi:10.16182/j.issn1004731x.joss.23-0316

Abstract

Abstract:

The signal radiation of the launch vehicle wireless system test in the closed tower of the launching site is very complex. In order to further study the antenna radiation characteristics, especially the multi-antenna coupled radiation in the whole vehicle state, a multi-antenna model with tower-vehicle body is established in this paper based on UG modeling technology and Altair Hyper Works 2017 electromagnetic compatibility simulation platform. It involves the method of moments-physical optics (MOM-PO) hybrid algorithm and delineates different calculation areas for different scale divisions, so as to solve quickly and accurately electromagnetic parameters of multi-antenna coupled radiation. The validity of the simulation model is verified by experiments.The laws of near-field and far-filed distribution under single antenna and multiple ones are further studied.The simulation results show that the ground receiving antenna is suitable for being arranged in the position of the active platform transparent port. Receiving antennas of other frequency bands can be arranged close to both sides of the platform. Coupled antenna patterns of the vehicle considering complex environments can improve the coverage of ground simulations.

Key words: method of moments, physical optics, antenna radiation, electromagnetic simulation, launch vehicle, tower

CLC Number:

TN06

Zhang Fen, Yu Tao, Han Yong, He Longwei. Simulation Research on Multi-antenna Coupled Radiation of Launch Vehicle in Tower[J]. Journal of System Simulation, 2023, 35(9): 1847-1859.

Figures/Tables 20

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天线名称	塔架位置	数量	波段
一级遥测	5夹层	2	S
二级遥测	6夹层	2	S
脉冲相参应答机		1	C
中继相控阵		1	S
安控终端		3	P
多星座导航接收机		4	L

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