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Author Munir, A. ♦ Izzuddin, A.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2011
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Reflector antennas ♦ Reflection ♦ Loading ♦ Loaded antennas ♦ Ultra wideband antennas ♦ Gain ♦ VSWR ♦ Characterization ♦ gain ♦ radiation efficiency ♦ reflection coefficient ♦ UWB printed antenna
Abstract In this paper, compact printed ultra-wide band (UWB) antennas with different number of arms are investigated and characterized numerically. As the antennas are proposed to be applied for UWB communication systems such as surface penetrating radar (SPR), they have to provide an ultra-wide band response due to narrow period pulse used by the application. The properties of antennas that are designed to have frequency range of 50–5000MHz for Voltage Standing Wave Ratio (VSWR) less than 2 and size-improved from the preliminary design are characterized with different number of arms and compared each other for some parameters including reflection coefficient (S), VSWR, gain and radiation efficiency. The optimization for antenna with additional arm is performed in terms of resistive loading application in all ends of arms and adding abrupt transitions onto additional arms. The proposed antennas are designed with 50Ω microstrip line feeding technique and deployed on FR-4 Epoxy substrate with overall size of 50mm × 41.2mm, relative permittivity of 4.3 and thickness of 1.6 mm. From the result, it shows that the proposed antennas achieve good performance i.e. reflection coefficient (S) < −10dB in the frequency range of 50–5000MHz, where for the mono-arm antenna has a good achievement for lower frequency bands (<1.1GHz) and higher frequency bands (>2.3GHz) whilst for the dual-arm antenna has a good response for pass frequency bands (1.1GHz–2.3GHz). The gain and radiation efficiency of antennas are almost similar each other where the gain of dual-arm antenna as well as radiation efficiency are higher than the mono-arm antenna for frequency ranges higher than 3.5GHz.
Description Author affiliation: Radio Telecommunication and Microwave Lab., School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Indonesia (Munir, A.; Izzuddin, A.)
ISBN 9781457702563
ISSN 21593450
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-11-21
Publisher Place Indonesia
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781457702556
Size (in Bytes) 781.58 kB
Page Count 5
Starting Page 1100
Ending Page 1104


Source: IEEE Xplore Digital Library