Bacterial Foraging Algorithm for Null Synthesizing of Linear Antenna s by Controlling Only the Element Positions

Kerim GÜNEY

A method based on the bacterial foraging algorithm (BFA) for the pattern synthesis of linear antenna arrays with the prescribed nulls is presented. Nulling of the pattern is achieved by controlling only the element positions. The BFA is a new evolutionary computing technique, based on the foraging behavior of Escherichia (E) coli bacteria in a human intestine. Simulation results for Chebyshev patterns with the imposed single, multiple and broad nulls are given to show the effectiveness of the proposed method. For practical consideration, due to small variations of the element positions, the se ...Daha fazlası

Makale/Derleme 2011 Journal Of Optımızatıon Theory And Applıcatıons 3 Görüntülenme

Seeker optimization algorithm for interference suppression of linear antenna arrays by controlling position-only, phase-only, and amplitude-only

Kerim GÜNEY

In this article, a stochastic search technique based on seeker optimization algorithm (SOA) is proposed for null steering of linear antenna arrays by controlling the position-only, phase-only, and amplitude-only. The SOA is relatively new optimization algorithm based on the concept of simulating the act of humans` intelligent search with their memory, experience, and uncertainty reasoning. Several numerical examples of Chebyshev pattern with the single, multiple, and broad nulls imposed at the directions of interference are given to illustrate the performance and flexibility of the proposed al ...Daha fazlası

Makale/Derleme 2011 Internatıonal Journal Of Rf And Mıcrowave Computer-Aıded Engıneerıng 9 Görüntülenme