Yeni Bir Melez Optimizasyon Algoritması Kullanarak UMTS, WLAN ve WiMAX Uygulamaları için Çift–Geniş Bantlı Monopole Anten Tasarımı

Abstract

In this study, a compact dual-wideband monopole antenna is proposed for the universal mobile telecommunications system (UMTS), wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications. In order to obtain the desired operating frequency bands, UMTS (1.9-2.1 GHz), WLAN (2.4/5.2/5.8 GHz) and WiMAX (2.5/3.5/5.5 GHz), a novel integration technique consisting of the HyperLynx ® 3D electromagnetic (EM) platform based on the method of moments (MoM) and a new hybrid optimization algorithm (HOA) is utilized. The HOA is developed by integrating powerful mutation and crossover strategies of differential evolution (DE) algorithm with the onlooker bee phase of the artificial bee colony (ABC) algorithm. The monopole antenna is capable of producing two distinct operating bands. First impedance bandwidth of 2.48 GHz is from 1.44 to 3.92 GHz and second band having the bandwidth of 1.58 GHz is between 4.92 and 6.50 GHz. The proposed antenna has been designed, simulated and fabricated on 42×49.2×1.6 mm 3 FR4 substrate with relative permittivity 4.4 and loss tangent 0.02. The better performance in terms of impedance matching is achieved, as compared to the double-or triple-band antennas previously published in the literature. In addition, the design antenna performs the omnidirectional radiation patterns with a good gain performance in the operating bands.

Design and Analysis of Novel Ring UWB Antenna

“…Depending on the increase in applications in this frequency band, the need for broadband antenna designs that will cover the entire UWB band is also increasing [2][3][4]. When viewed from this perspective, the microstrip monopole structures are the suitable candidate for designing UWB antennas due to their prominent features such as small size, being cheap, being easy of manufacturing and Omni-directional radiation patterns [5][6][7]. When the literature is examined that, the many monopole antennas have been presented for the UWB or narrow band applications with the different shaped radiators [8][9][10][11].…”