Pattern Synthesis for Dual-Polarized Conformal Arrays via Iterative Convex Optimization

Liu, Chao; Li, Chuan; Yang, Bo

doi:10.1155/2021/8896937

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…In Refs. [22,23], researchers reduced the error by introducing the auxiliary phase. However, this kind of method is still insufficient to control the accuracy of beam shaping.…”

Section: Introductionmentioning

confidence: 99%

Pattern synthesis of dual‐polarised conformal array based on adaptive iterative convex optimisation

Liu

Qian

Zhang

et al. 2023

IET Microwaves Antenna & Prop

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This study focuses on the shaped beam pattern synthesis based on the convex optimisation method for conformal arrays. First, the original pattern synthesis problem is transformed into a constrained optimisation problem for the power pattern. Then, it is rewritten as a convex optimisation problem through a linear approximation of weight vector. In order to enhance the resiliency of the algorithm, a robust linear approximate method is proposed with an adaptive upper bound of step size. The loss between the obtained and desired pattern is defined to dynamically adjust the upper bound. Benefiting from the flexible constraint, the proposed method can achieve the arbitrary beam pattern with fast convergence and robustness. Finally, numerous typical examples are provided to demonstrate the validity of the proposed method.

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“…In Refs. [22,23], researchers reduced the error by introducing the auxiliary phase. However, this kind of method is still insufficient to control the accuracy of beam shaping.…”

Section: Introductionmentioning

confidence: 99%

Pattern synthesis of dual‐polarised conformal array based on adaptive iterative convex optimisation

Liu

Qian

Zhang

et al. 2023

IET Microwaves Antenna & Prop

Self Cite

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Convex Optimization Algorithm for Maximizing Directivity of Conformal Array With DRR Constraint

Liu,

Zhu,

Qian

et al. 2024

International Journal of Antennas and Propagation

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The inconsistency of conformal array elements poses a huge challenge to pattern synthesis. Based on convex optimization theory, this paper proposes a novel directivity pattern synthesis method. It can maximize the directivity of dual‐polarized conformal arrays with a low dynamic range ratio (DRR). Firstly, the directivity function is presented under a dual‐polarized conformal array. Then the pattern synthesis based on maximizing directivity is summarized as a multiconstraint optimization problem. In addition, the DRR constraint is introduced to control the weight range. By using Taylor expansion, the problem is transformed into a convex optimization problem and solved iteratively. Finally, simulation results demonstrate that the proposed method can effectively achieve a good directivity pattern with low sidelobe level (SLL) and low DRR.

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Pattern Synthesis for Dual-Polarized Conformal Arrays via Iterative Convex Optimization

Cited by 2 publications

References 22 publications

Pattern synthesis of dual‐polarised conformal array based on adaptive iterative convex optimisation

Pattern synthesis of dual‐polarised conformal array based on adaptive iterative convex optimisation

Convex Optimization Algorithm for Maximizing Directivity of Conformal Array With DRR Constraint

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