Memetic Flower Pollination Algorithm-Based Radiation Pattern in Time-Modulated Linear Antenna Arrays

2021 ◽  
pp. 187-196
Author(s):  
Gopi Ram ◽  
D. Suneel Varma ◽  
G. Arun Kumar
Keyword(s):  
Radiation Pattern ◽  
Antenna Arrays ◽  
Flower Pollination Algorithm ◽  
Linear Antenna ◽  
Flower Pollination ◽  
Linear Antenna Arrays

scholarly journals Pattern Synthesis of Linear Antenna Arrays Using Enhanced Flower Pollination Algorithm

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Urvinder Singh ◽  
Rohit Salgotra
Keyword(s):  
Antenna Arrays ◽  
Flower Pollination Algorithm ◽  
Benchmark Problems ◽  
Linear Antenna ◽  
Exploration And Exploitation ◽  
Pattern Synthesis ◽  
Flower Pollination ◽  
New Variant ◽  
Cauchy Mutation ◽  
Linear Antenna Arrays

In this paper, a new variant of flower pollination algorithm (FPA), namely, enhanced flower pollination algorithm (EFPA), has been proposed for the pattern synthesis of nonuniform linear antenna arrays (LAA). The proposed algorithm uses the concept of Cauchy mutation in global pollination and enhanced local search to improve the exploration and exploitation tendencies of FPA. It also uses dynamic switching to control the rate of exploration and exploitation. The algorithm is tested on standard benchmark problems and has been compared statistically with state of the art to prove its worthiness. LAA design is a tricky and difficult electromagnetic problem. Hence to check the efficacy of the proposed algorithm it has been used for synthesis of four different LAA with different sizes. Experimental results show that EFPA algorithm provides enhanced performance in terms of side lobe suppression and null control compared to FPA and other popular algorithms.

Synthesis and implementation aspects of linear antenna arrays with shaped radiation pattern for mobile communications

2016 ◽  
Vol 10 (4) ◽  
pp. 442-452 ◽  
Author(s):  
Edson R. Schlosser ◽  
Marcos V.T. Heckler ◽  
Renato Machado ◽  
Alexis Fabricio Tinoco Salazar
Keyword(s):  
Radiation Pattern ◽  
Mobile Communications ◽  
Antenna Arrays ◽  
Linear Antenna ◽  
Implementation Aspects ◽  
Linear Antenna Arrays

scholarly journals Antenna Array Weight Synthesis for Low Side Lobe Levels using Window Functions

2019 ◽  
Vol 9 (1) ◽  
pp. 3074-3081
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Antenna Arrays ◽  
Side Lobe ◽  
Optimization Techniques ◽  
Side Lobe Level ◽  
Linear Antenna ◽  
Window Functions ◽  
Linear Antenna Arrays ◽  
Array Weight

A lot of research is being carried out to reduce side lobe levels (SSLs) in the radiation pattern of antenna arrays. A number of novel optimization techniques have been developed over the years and adapted for this purpose. In this paper, a number of window functions are applied to suppress the maximum side lobe level (MSLL) in linear antenna arrays. The window functions Bartlett, Taylor, Hanning, Barthann, Hamming, Gaussian, Blackman, Chebyshev, Blackman-Harris and Kaiser are considered in the simulation. The optimized pattern for a 10 element linear antenna array and corresponding normalized window tappers for every window are presented. Finally the efficiency of all windows is compared in terms of their computed parameters.

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