Design of an 868 MHz Printed S-Shape Monopole Antenna

作     者：Gerard Rushingabigwi Liguo Sun 

作者机构：Department of Electronic Engineering and Information Science University of Science and Technology of China (USTC) Hefei China 

出 版 物：《Journal of Computer and Communications》 (电脑和通信（英文）)

年 卷 期：2015年第3卷第3期

页      码：49-55页

摘      要：The purpose of this work is to design and analyze an s-shaped printed circuit board (PCB) monopole antenna. The antenna was analyzed to operate at a resonance frequency band of 868 MHz;acceptable in 915 MHz as well. The s-shape is selected due to the need of reducing the overall size of the normal monopole antenna. The printed antenna was designed with an approximate overall size of 39 × 56 mm2 of which the antenna’s upper side is 26 × 39 mm2 while its reference ground board was sized at 39 × 30 mm2. The antenna is fed by a strip line of 3 × 1.5 mm2, in series with a 4.4 pF capacitance and shunt with an 8.7 nH inductance for purpose of antenna’s impedance matching with the input. A couple of existing publications showed that PCB antenna is not a new technology;however not an old technology for telecommunication industry. The raised problem by this work was duly solved with HFSS as a tool;excellent results are presented. After duly matching the antenna’s impedance with 50 Ω microstrip feed-line, solutions for overall performance were analyzed and demonstrated optimal: radiation patterns were proven omnidirectional, antenna gain optimized. The present antenna prototype’s overall dimensions can be readjusted according to any industrial and manufacturing requests.

主 题 词：Design of an 868 MHz Printed S-Shape Monopole Antenna 

学科分类：1002[医学-临床医学类] 100214[100214] 10[医学] 

D　O　I：10.4236/jcc.2015.33009

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