Optimal design of concentric elliptical array antenna for maximum side-lobe level reduction using particle swarm optimization with aging leader and challengers

2016 ◽  
Author(s):  
Rajesh Bera ◽  
Durbadal Mandal ◽  
Sakti Prasad Ghoshal ◽  
Rajib Kar
Keyword(s):  
Particle Swarm Optimization ◽  
Optimal Design ◽  
Particle Swarm ◽  
Side Lobe ◽  
Array Antenna ◽  
Side Lobe Level ◽  
Swarm Optimization ◽  
Level Reduction

scholarly journals Synthesis of Volumetric Ring Antenna Array for Terrestrial Coverage Pattern

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Alberto Reyna ◽  
Marco A. Panduro ◽  
Carlos Del Rio Bocio
Keyword(s):  
Particle Swarm Optimization ◽  
Antenna Array ◽  
Side Lobe ◽  
Side Lobe Level ◽  
Swarm Optimization ◽  
Maximum Reduction ◽  
Ring Antenna ◽  
Satellite Applications ◽  
Proper Performance ◽  
Level Reduction

This paper presents a synthesis of a volumetric ring antenna array for a terrestrial coverage pattern. This synthesis regards the spacing among the rings on the planesX-Y, the positions of the rings on the planeX-Z, and uniform and concentric excitations. The optimization is carried out by implementing the particle swarm optimization. The synthesis is compared with previous designs by resulting with proper performance of this geometry to provide an accurate coverage to be applied in satellite applications with a maximum reduction of the antenna hardware as well as the side lobe level reduction.

scholarly journals Design of an Efficient Wideband Beamformer using OPSO

2019 ◽  
Vol 8 (11) ◽  
pp. 2144-2152
Keyword(s):  
Particle Swarm Optimization ◽  
Particle Swarm ◽  
Side Lobe ◽  
Side Lobe Level ◽  
Sidelobe Level ◽  
Swarm Optimization ◽  
Angle Deviation

Wideband beamforming is a technique which is used to produce frequency invariant beampatterns over a wide signal bandwidth. In this paper, orthogonal particle swarm optimization (OPSO) based wideband beamformer is designed to achieve wideband beamforming. Simulations are carried out for two different scenarios to illustrate the capability of the algorithm for wideband beamforming. The beampatterns obtained from three different methods that are standard Frost algorithm, particle swarm optimization (PSO) and OPSO are compared by various parameters such as level of interference, deviation in interference angle and peak side lobe level. It is shown that by using OPSO, SLL (Sidelobe Level), null depth as well as angle deviation in nulls direction can be reduced as compared to PSO and Frost algorithms

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