Multiband Pattern Synthesis of Time-Modulated Conformal Array with Quadratic Convex Optimization Algorithm

Aiming at the multiband pattern synthesis problem of time-modulated conformal array antenna, a quadratic convex optimization algorithm is proposed for sum and difference beamforming with low sidelobe levels. This articles method synthesizes a difference beam with a low sidelobe level by generating n...

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Veröffentlicht in:International journal of RF and microwave computer-aided engineering Jg. 2023; S. 1 - 16
Hauptverfasser: Dong, Xiao, Li, Hailin, Wang, Ke, Zhang, Yanwei, Chu, Yongyan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hoboken Hindawi 08.05.2023
John Wiley & Sons, Inc
Schlagworte:
Algorithms
Antenna arrays
Antennas
Arrays
Beamforming
Computational geometry
Convex analysis
Convexity
Electric fields
Frequencies
Genetic algorithms
Optimization
Optimization algorithms
Radiation
Sidelobe reduction
Sidelobes
Synthesis
ISSN:1096-4290, 1099-047X
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Zusammenfassung:Aiming at the multiband pattern synthesis problem of time-modulated conformal array antenna, a quadratic convex optimization algorithm is proposed for sum and difference beamforming with low sidelobe levels. This articles method synthesizes a difference beam with a low sidelobe level by generating nulls at the center frequency band and optimizing the switch-on duration time of array elements. And the sum beamforming and sidelobe suppression of the first-order sideband are realized by optimizing the switch-on instant time of the array elements. The proposed algorithm has excellent properties of sidelobe suppression and angular sweep. The simulation results of circular and satellite array antenna verify the effectiveness of the algorithm.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1096-4290
1099-047X
DOI:10.1155/2023/7631954