DESIGN OF ULTRA-WIDEBAND ANTENNA
By:
ROBI’ATUN ADAYIAH AWANG
Faculty of Electrical Engineering
Shah Alam
Introduction
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In the past few years Ultra wideband (UWB)
technology has received increasing attention in the
communication system.
The FCC has mandated that UWB radio transmissions
can legally operate in the range from 3.1 GHz up to
10.6 GHz
Its main envisioned advantages over conventional
(narrowband) wireless communications systems are:
low transmit power levels, high-data rates, and
possibly simpler hardware configurations
Research Background
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Some of the critical requirements in UWB antenna design are:
ultra wide bandwidth, directional or omni-directional radiation
patterns, constant gain and group delay over the entire band
and high radiation efficiency.
Approved spectrum by FCC
 Comm, medical imaging and measurement systems (3.1 GHz
-10.6 GHz)
 Ground penetrating radar (<960 MHz) and wall imaging (3.1
GHz -10.6 GHz)
 Thru-wall imaging and surveillance system (1.99 GHz -10.6
GHz)
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Vehicular radar system (22-29 GHz)
Problem Statement
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Most of the research works have been focused in
omni-directional UWB antenna where the design
present radiation patterns similar to the traditional
monopole/dipole antenna. The antenna covers a wide
area with reasonable gain but not suitable for long
distance. Just suitable for indoor environments.
Proposed the high directional/directivity antenna as
they have focused beam with high gain, suitable for
long distance communications. The directional UWB
antenna also will minimize the effect of
electromagnetic radiation to the human body.
Research Objective
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To investigate an ultra-wideband antenna using
metamaterial.
To identify suitable dielectric thickness for the
antenna
To investigate the suitable structure that will give
high directivity characteristics.
Research Methodology
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Literature Review
Modeling and Simulation
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Mathematical equation (Matlab, Maple)
Simulation and Design using Genesys and CST.
Data Analysis from simulation Result
Hardware Construction (Fabrication)
Testing & Measurement
Performance Analysis & Synthesis
Documentation & Report
Benefits of the project
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New/improved material – Metamaterial with new
structure for ultra-wideband antenna.
Human Capital and expert development
 Bachelor students, master student and Research
staffs with new specialization (antenna design and
analysis)
References
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[1] H. Schantz, “Introduction to ultra-wideband antennas”. Ultra Wideband Systems and
Technologies, 2003 IEEE Conference on.16-19 Nov. 2003, pp. 1-9.
[2]. Antennas for all applications. John D. Kraus, Ronald J. Marhefka,.Ed. McGraw-Hill ,
2002, ch. 11, pp. 378-379.
[3] H. Schantz, “A Brief History of UWB Antennas”.Aerospace and Electronic Systems
Magazine, IEEE Volume 19, Issue 4, April 2004, pp.22-26.
[4] K. Siwiak, P. Withington, S. Phelan, H. Schantz, “Introduction to ultra-wideband
antennas”. Ultra Wideband Systems and Technologies, 2003 IEEE Conference on.16-19 Nov.
2003, pp. 1-9.
[5] M. A. Peyrot-Solis, G.M. Galvan-Tejada, H. Jardon-Aguilar, “State of the Art in UltraWideband Antennas” 2nd International Conference on Electrical and Electronics Engineering
(ICEEE) and XI Conference on Electrical Engineering (CIE 2005), Mexico City, Mexico.
September 7-9, 2005
[6] S.Honda, M.Ito, H.Seh and Y.Jimbo, Proc. of ISAP'92, pp.1145-1148, 1992
[7] T.Taniguchi and T.Kobayashi, IEEE AF'S Int. Symp. vo1.3, pp.460-463, June 2003
[8] J.A.Evans and M.J.A"ann, IEEE APS Int. Symp. vo1.3, pp.1558-1561, July 1999
[9] Bruno Biscontini and Peter Russer, “A Novel Multilayered Planar Antenna for Ultra Wide
Band(UWB) Intelligent Antenna Systems”Institute for High Frequency Engineering,
http://www.hft.ei.tum.de.
[10] Akio kuramoto, “Flat Type UWB Antenna” 2004' 3d International Conference on
Computational Electromagnetics and Its Applications Proceedings
[11] Maciej Klemm, Istvan Z. Kovacs Gert F. Pedersen, Gerhard Triister, “ Comparison of
directlional and omnl-directlonal UWB antennas for Wireless Body Area Network
applications”
THANK YOU