基于极化状态配置的宽带相控阵极化控制方法

doi:10.12305/j.issn.1001-506X.2022.03.11

Abstract

Abstract:

The traditional fixed polarization state has the problems of low cross polarization isolation and narrow effective scanning angle range, which restricts the full utilization of polarization information in phased array radar. In order to improve the cross polarization isolation and solve the problem of beam pattern distortion in broadband phased array, a polarization pattern synthesis scheme of broadband phased array based on polarization state configuration method is proposed. By optimizing the polarization states of different beam directions and using finite impulse response (FIR) digital filter, a broadband array pattern synthesis model is established to control the polarization pattern. Simulation results show that this method can effectively reduce the frequency response of main polarization and cross polarization patterns, and suppress the side lobe and cross polarization level of main polarization. Keeping the cross polarization isolation of broadband phased array at a high level in the wide-angle scanning range can meet the index requirements of practical polarization phased array applications.

Key words: wideband phased array radar, cross polarization isolation, configuration of polarization state, digital filter

CLC Number:

TN821+.8

Zhanling WANG, Chen PANG, Jiapeng YIN, Yongzhen LI, Xuesong WANG. Polarization control method for wideband phased array based on polarization state configuration[J]. Systems Engineering and Electronics, 2022, 44(3): 795-801.

Figures/Tables 8

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References 20

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参数名称	指标
阵列形式	ULA
阵元数	16
阵元间距	λ/2
中心频率/GHz	10
工作频率/GHz	9.5~10.5
滤波器阶数	10

Polarization control method for wideband phased array based on polarization state configuration

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