Low-side-lobe pattern synthesis of antenna array by genetic algorithm

2008 ◽  
Vol 28 (7) ◽  
pp. 1656-1658
Author(s):  
Li BIAN
Keyword(s):  
Genetic Algorithm ◽  
Antenna Array ◽  
Side Lobe ◽  
Pattern Synthesis

scholarly journals Side lobe reduction of a concentric circular antenna array using genetic algorithm

2010 ◽  
Vol 7 (2) ◽  
pp. 141-148 ◽  
Author(s):  
Durbadal Mandal ◽  
Aniruddha Chandra ◽  
Prasad Sakti ◽  
Kumar Bhattacharjee
Keyword(s):  
Genetic Algorithm ◽  
Antenna Array ◽  
Optimization Problem ◽  
Side Lobe ◽  
Side Lobe Level ◽  
Excitation Profile ◽  
Concentric Circular Antenna Array ◽  
The Difference ◽  
The Cost ◽  
Circular Antenna Array

A concentric circular antenna array (CCAA) consists of elements positioned on the periphery of imaginary circles on a plane having a common centre and different radii. The simplest way to feed the elements of such an array is to use uniform excitation. However, with a non-uniform excitation profile, considerable reduction of the side lobe level (SLL) may be achieved at the cost of the added complexity. The difference of SLLs (with respect to the uniform excitation case) becomes even more prominent when the beamwidth of the antenna needs to be kept fixed. In this paper, we formulate the task of designing a non-uniformly excited CCAA as a constrained optimization problem and use genetic algorithm (GA) to solve the same. The goal is to determine an optimum set of weights for antenna elements which provides a radiation pattern with maximum SLL reduction with the constraint of a fixed beamwidth.

Sign in / Sign up

Export Citation Format

Share Document