A multiobjective optimization of a UWB antenna using a self organizing genetic algorithm

Abstract

This article presents the optimization process of a microstrip antenna designed to operate with ultra‐wideband applications. This optimization process was accomplished by applying a self organizing multiobjective genetic algorithm (GA) to optimize a geometry aspect of a ring monopole antenna (a slit in the ground plane) considering three objectives simultaneously (bandwidth, return loss and central frequency deviation). Each of these objectives are modeled as dependent of two variables (the slit dimensions) and used in a single weighted compound aggregate objective function in which weights are defined by an adjuster GA that uses another GA to evaluate each combination of possible weights. The results were compared with the ones obtained to the same antenna using a simulator program (Ansoft HFSS) and with the results of a real prototype antenna built from the slit dimension optimal values obtained after the optimization process. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1824–1828, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26945

A fast and accurate technique for FSS and antenna designs based on the social spider optimization algorithm

“…For the considered UWB antenna, the developed SSO algorithm results for the antenna bandwidth are better than the GA results presented in Ref. . In addition, measured and simulated results are shown in Figure and summarized in Table .…”

Desain dan Optimasi Antena Pita Lebar Planar Monopole Bentuk Sembarang dengan Algoritma Genetika dan Metoda Momen

“…Untuk mendapatkan pita yang lebar, algoritma tersebut digabungkan atau digantikan dengan metode lain, seperti particle swarm optimization (PSO) dalam [6]- [9] atau machine learning (ML) dalam [10]. Selain itu, perangkat lunak yang digunakan untuk desain dan simulasi elektromagnetik menggunakan perangkat lunak komersial, seperti HFSS dalam [6], [8], [11] dan CST dalam [5], [9]. Sebagian besar tipe antena yang dipilih adalah antena monopole bukan bentuk sembarang dengan ukuran antena yang tidak kompak dan memiliki respons magnitudo yang terbatas pada pita frekuensi bawah, yaitu rata-rata di frekuensi 3,1 GHz.…”

“…Dibandingkan dengan [5], [6], [8], [9] dan [11] yang menggunakan perangkat lunak komersial khusus untuk desain dan simulasi antena, metode AGMM dapat diimplementasikan dengan menggunakan perangkat lunak Matlab. Metode ini juga memungkinkan bentuk case antena monopole berupa bentuk sembarang, di antaranya monopole diskrit sembarang dan tepi sembarang yang dipilih dalam penelitian ini.…”

Genetic algorithm optimization of a CPW fed UWB circular ring monopole with modified ground plane

“…In a UWB monopole the radiating element and ground plane shapes have an important effect on the performance of the antenna. Many antenna configurations have been proposed to fulfil the UWB specifications .…”

“…Genetic algorithms have been successfully used in the optimization of many microwave circuits, such as printed antennas , and frequency selective surfaces (FSS) . In order to determine the best CPW fed antenna dimensions, setups for parametric and optimetrics analyses, based on GA optimization, were constructed and solved by HFSS software .…”