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Article
Comparison of the Radiation Characteristics of Triangular and Quadratic Koch Fractal Dipole Wire Antennas

Authors: F.J. Jibrael --- Z.F. Mizeel
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2009 Volume: 5 Issue: 4 Pages: 17-21
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

In this paper, a small size, low profile and multiband triangular and quadratic Koch curve dipole antenna are presented. The proposed antennas design, analysis and characterization had been performed using the method of moments (MoM). The designed antennas have operating frequencies of 603MHz, and 1789MHz for triangular Koch dipole antenna and 460MHz and 1262MHz for quadratic Koch dipole antenna. The radiation characteristics, reflection coefficients, VSWR, gain, and input impedance of the proposed antennas are described and simulated using the 4NEC2 software package.


Article
Design of Compact Dual-band Antenna for 4G LTE Wireless Devices

Author: Ali J. Salim
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 6 Part (A) Engineering Pages: 1194-1206
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this paper, the planar dual-band monopole antenna is presented for Long Term Evolution (LTE) and Wireless Local Area Network (WLAN) applications. The design of the proposed antenna is based on Peano fractal curve and meander line structures. The antenna operates in 1.71 GHz to 2.01 GHz in the desired LTE frequency band and 5.0 GHz to 5.5GHz band (IEEE 802.11a band). The frequency band 1.71 - 2.01 GHz is already available as a study of the current plan according to UMTS and LTE systems (the band no.4). The antenna has been fixed on a substrate boardArlon with εr= 2.33 and thickness of 0.9 mm. Simulation results shows that the proposed antenna has promising radiation characteristics and a reasonable gain of 2.155 dBi at the lower band and 4.772 dBi at the upper band. The simulation and evaluation of antenna performance werecarried out using Microwave Studio Suite of Computer Simulation Technology CST.

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