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Pattern synthesis of distorted phased array antenna with unsteady surface deformation considering dynamic range ratio

Published online by Cambridge University Press:  27 September 2023

Qi Wang Open the ORCID record for Qi Wang [Opens in a new window] ,
Yuanxin Yu ,
Yuning Pan ,
Renjing Gao  and
Shutian Liu
Qi Wang*
Affiliation:
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, China
Yuanxin Yu
Affiliation:
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, China
Yuning Pan
Affiliation:
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, China
Renjing Gao
Affiliation:
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, China
Shutian Liu
Affiliation:
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, China
*
Corresponding author: Qi Wang; Email: [email protected]
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Abstract

This paper presents an optimization method for pattern synthesis of distorted phased array antenna with unsteady surface deformation considering the dynamic range ratio (DRR). In the synthesis approach, different array deformations under unsteady mechanical loads are considered, and the distorted distribution of array elements is calculated after solving the mechanical deformation model. Then, optimize the excitation coefficients of each array element including amplitude and phase with DRR control so as to recover a high-quality pattern from a deteriorated pattern caused by the unsteady deformations. The optimization objective is to minimize the peak sidelobe level, which is synthesized by using a gradient-based algorithm. The optimized excitations can be used as the initial excitation, and the corresponding phase excitations can be derived according to the different deformations.

Keywords

excitation coefficientsmechanical deformationphased array antennasynthesis approach
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 16 , Issue 3 , April 2024 , pp. 498 - 504
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Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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