A new low-side-lobe pattern synthesis technique for conformal arrays

1993 ◽  
Vol 41 (6) ◽  
pp. 824-831 ◽  
Author(s):  
Y.-C. Jiao ◽  
W.-Y. Wei ◽  
L.-W. Huang ◽  
H.-S. Wu
Keyword(s):  
Side Lobe ◽  
Pattern Synthesis ◽  
Synthesis Technique ◽  
Conformal Arrays

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

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Chao Liu ◽  
Chuan Li ◽  
Bo Yang
Keyword(s):  
Convex Optimization ◽  
Side Lobe ◽  
Main Lobe ◽  
Pattern Synthesis ◽  
Polarization Component ◽  
Conformal Arrays ◽  
Good Pattern ◽  
Nonconvex Constraint ◽  
Convergence Performance ◽  
Dual Polarized

An iterative convex optimization (ICO) algorithm is proposed to solve pattern synthesis problem under the framework of dual-polarized conformal arrays in this paper. The subproblems of shaping main lobe, optimizing side lobe, and suppressing cross-polarization component are summarized as a joint optimization problem. To solve this problem, the nonconvex constraint about main lobe is rewritten as a convex constraint, which will bring error. And an auxiliary phase function is introduced to correct this error alternatively. Due to the deviation between auxiliary phase and real phase of pattern function, a method minimizing the peak of the synthesis error over observation angles is effectively applied to further improve the performance of the method. Numerical examples show good pattern synthesis ability and convergence performance of the ICO method.

A Pattern Synthesis Technique for Multiplicative Arrays

PIERS Online ◽  
2010 ◽  
Vol 6 (6) ◽  
pp. 551-554 ◽  
Author(s):  
Herbert M. Aumann
Keyword(s):  
Pattern Synthesis ◽  
Synthesis Technique

Performance Evaluation of Elliptical-Cylindrical Antenna Array using SaDE Optimized Hyper Beam

2017 ◽  
Vol 7 (1) ◽  
pp. 178 ◽  
Author(s):  
Gebrehiwet Gebrekrstos Lema
Keyword(s):  
Communication Systems ◽  
High Performance ◽  
Optimization Technique ◽  
Analytical Techniques ◽  
Side Lobe ◽  
Optimization Techniques ◽  
Side Lobe Level ◽  
Pattern Synthesis ◽  
Improved Performance ◽  
The Individual

<p>For high performance communication systems, Side Lobe Level (SLL) reduction and improved directivity are the goal of antenna designers. In the recent years, many optimization techniques of antenna design are occupying demanding place over the analytical techniques. Though they have contributed attractive solutions, it is often obvious to select one that meets the particular design need at hand. In this paper, an optimization technique called Self-adaptive Differential Evolution (SaDE) that can be able to learn and behave intelligently along with hyper beam forming is integrated to determine an optimal set of excitation weights in the design of EcAA. Non-uniform excitation weights of the individual array elements of EcAA are performed to obtain reduced SLL, high directivity and flexible radiation pattern. To evaluate the improved performance of the proposed SaDE optimized hyper beam, comparison are done with uniformly excited, SaDE without hyper beam and Genetic Algorithm (GA). In general, the proposed work of pattern synthesis has resulted in much better reduction of SLL and FNBW than both the uniformly excited and thinned EcAA. The results of this study clearly reveal that the SLL highly reduced at a very directive beamwidth.</p>

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