Design of Parameter-Optimized Spiral Arrays with Ultra-Wideband Grating Lobe Suppression

An effective method is presented to design the layout of spiral array with ultra-wideband (UWB) grating lobe suppression. In this method, the general array factor expression of spiral array is formulated. Then, the synthesis problem of spiral array layout is converted to an optimization problem of t...

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Published inElectronics (Basel) Vol. 12; no. 7; p. 1664
Main Authors Liu, Siqi, Chen, Liyang, Liu, Yanhui
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.04.2023
Subjects
Algorithms
Antenna arrays
Antennas
Arrays
Design and construction
Design optimization
Design parameters
Genetic algorithms
Layouts
Mathematical optimization
Methods
Optimization
Particle swarm optimization
Radiation
Synthesis
Ultra wideband technology
Ultrawideband
China
Online AccessGet full text
ISSN2079-9292
2079-9292
DOI10.3390/electronics12071664

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Abstract An effective method is presented to design the layout of spiral array with ultra-wideband (UWB) grating lobe suppression. In this method, the general array factor expression of spiral array is formulated. Then, the synthesis problem of spiral array layout is converted to an optimization problem of three geometric parameters: s, r and Δϕ. These parameters can determine the exact position of each element. The optimization problem is solved by particle swarm optimization (PSO) algorithm where the constraints of element spacing and array aperture are introduced. For different-sized spiral arrays, there are always only three variables that need to be optimized in the PSO algorithm, which allows the proposed method to handle the layout design of large-scale spiral arrays with UWB grating lobe suppression. Two examples with different synthesis requirements are conducted to verify the effectiveness and advantages of the proposed method.
AbstractList An effective method is presented to design the layout of spiral array with ultra-wideband (UWB) grating lobe suppression. In this method, the general array factor expression of spiral array is formulated. Then, the synthesis problem of spiral array layout is converted to an optimization problem of three geometric parameters: s, r and Δϕ. These parameters can determine the exact position of each element. The optimization problem is solved by particle swarm optimization (PSO) algorithm where the constraints of element spacing and array aperture are introduced. For different-sized spiral arrays, there are always only three variables that need to be optimized in the PSO algorithm, which allows the proposed method to handle the layout design of large-scale spiral arrays with UWB grating lobe suppression. Two examples with different synthesis requirements are conducted to verify the effectiveness and advantages of the proposed method.
Audience Academic
Author Liu, Yanhui
Liu, Siqi
Chen, Liyang
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SubjectTerms Algorithms
Antenna arrays
Antennas
Arrays
Design and construction
Design optimization
Design parameters
Genetic algorithms
Layouts
Mathematical optimization
Methods
Optimization
Particle swarm optimization
Radiation
Synthesis
Ultra wideband technology
Ultrawideband
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