Sidelobe level reduction of aperiodic planar array using an improved invasive weed optimization algorithm

2011 ◽  
Author(s):  
R. Bhattacharya ◽  
T. K. Bhattacharyya ◽  
S. Saha
Keyword(s):  
Optimization Algorithm ◽  
Invasive Weed Optimization ◽  
Sidelobe Level ◽  
Invasive Weed ◽  
Planar Array ◽  
Sidelobe Level Reduction ◽  
Level Reduction

scholarly journals An Antenna Array Sidelobe Level Reduction Approach through Invasive Weed Optimization

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Geng Sun ◽  
Yanheng Liu ◽  
Han Li ◽  
Shuang Liang ◽  
Aimin Wang ◽  
...  
Keyword(s):  
Antenna Array ◽  
Antenna Arrays ◽  
Invasive Weed Optimization ◽  
Sidelobe Level ◽  
Pattern Synthesis ◽  
Invasive Weed ◽  
Sidelobe Level Reduction ◽  
The Stability ◽  
Beam Patterns ◽  
Level Reduction

The problems of synthesizing the beam patterns of the linear antenna array (LAA) and the circular antenna array (CAA) are addressed. First, an optimization problem is formulated for reducing the maximum sidelobe level (SLL) of the beam patterns. Then, the formulated problem is solved by using the invasive weed optimization (IWO) algorithm. Various simulations are performed to evaluate the effectiveness of the IWO algorithm for the synthesis of the beam patterns of the LAA and the CAA. The results show that IWO has a better performance in terms of the accuracy, the convergence rate, and the stability compared with other algorithms for the SLL reductions. Moreover, the electromagnetic simulation results also show that IWO achieves the best performance for the beam pattern synthesis of the antenna arrays in practical conditions.

A sidelobe level reduction (SLL) for planar array antennas with −30 dB attenuators weight precision

2010 ◽  
Vol 14 (5) ◽  
pp. 316-320 ◽  
Author(s):  
Ahmed Khairy Aboul-Seoud ◽  
Ahmed Khairy Mahmoud ◽  
Alaa El-Din Sayed Hafez
Keyword(s):  
Sidelobe Level ◽  
Array Antennas ◽  
Planar Array ◽  
Sidelobe Level Reduction ◽  
Level Reduction

Differential evolution algorithm applied to sidelobe level reduction on a planar array

2007 ◽  
Vol 61 (5) ◽  
pp. 286-290 ◽  
Author(s):  
Carlos Rocha-Alicano ◽  
David Covarrubias-Rosales ◽  
Carlos Brizuela-Rodriguez ◽  
Marco Panduro-Mendoza
Keyword(s):  
Differential Evolution ◽  
Differential Evolution Algorithm ◽  
Sidelobe Level ◽  
Planar Array ◽  
Evolution Algorithm ◽  
Sidelobe Level Reduction ◽  
Level Reduction

An Adaptive Invasive Weed Optimization Algorithm

2015 ◽  
Vol 29 (02) ◽  
pp. 1559004 ◽  
Author(s):  
Shuo Peng ◽  
A.-J. Ouyang ◽  
Jeff Jun Zhang
Keyword(s):  
Optimization Algorithm ◽  
Initial Step ◽  
Local Extremum ◽  
Invasive Weed Optimization ◽  
Step Size ◽  
Invasive Weed ◽  
Adaptive Step Size ◽  
Initial Step Size ◽  
Adaptive Step ◽  
Optimization Search

With regards to the low search accuracy of the basic invasive weed optimization algorithm which is easy to get into local extremum, this paper proposes an adaptive invasive weed optimization (AIWO) algorithm. The algorithm sets the initial step size and the final step size as the adaptive step size to guide the global search of the algorithm, and it is applied to 20 famous benchmark functions for a test, the results of which show that the AIWO algorithm owns better global optimization search capacity, faster convergence speed and higher computation accuracy compared with other advanced algorithms.

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