Bulletin 3rd Edition..

Highlights
Issue No. 3/2015
http://fkee.uthm.edu.my/waras
WIRELESS AND RADIO SCIENCE CENTRE
“Exploring Global Ideas”
Contents
Page
Message from Head of
Centre
2
Organization of WARAS
3
Achievements
4
Activities
5
Special Article
10
Research
14
Copyright 2015 by WARAS
Editorial TEAM
Advisors:
Assoc. Prof. Dr. Muhammad Yusof Ismail
Chief Editor:
Dr. Nor Shahida Mohd Shah
Editorial Members:
Hairul Nizam Tukimin
Dr. Noorsaliza Abdullah
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WARAS Highlights
Issue No. 3/2015
Message from the Head of Centre
It is my great pleasure to congratulate the editorial team of the bulletin of Wireless and Radio Science
Centre (WARAS) for successfully publishing the third issue of WARAS Highlights. As an active research
centre at Universiti Tun Hussein Onn Malaysia, WARAS has been actively involved in diversified
research and innovation activities focusing on wireless communications and radio science research
projects. In line with the call of the Ministry of Higher Education of Malaysia on the importance of
conducting multi-disciplinary research, WARAS has taken a proactive approach through the
participation of local and international researchers from relevant disciplines to join us in making
substantial contributions. The involvement of WARAS research fellows at diverse range of national and
international activities provided in this bulletin is one of the key strategies in order to enhance
significant linkages with research institutions and industries for promoting a vibrant research culture.
Thank you.
With Wisdom, We Explore
Associate Professor Dr. Muhammad Yusof Ismail
Head of Wireless and Radio Science Centre (WARAS)
Faculty of Electrical & Electronic Engineering
Universiti Tun Hussein Onn Malaysia
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ORGANIZATION OF WARAS
Associate Professor Dr. Muhammad Yusof Ismail
Head of WARAS Centre
Technical
Division
Hairul Nizam
Tukimin
(Ass. Engineer)
Abdul Hamid
Sabran
(Ass. Engineer)
Research Fellow
Postgraduate Section
Internal
Muhammad Inam
Abassi
Noor Hafizah
Sulaiman
Muhammad
Hashim Mir Khan
Dahri
Arslan Kiyani
Wan Nor Zaihasra
Wan Saleh
Prof. Ir. Dr. Zainal Abidin Ahmad
Prof. Hj. Ayob Johari
Prof. Dr. Maizam Alias
Assoc. Prof. Dr. Jiwa Abdullah
Assoc.Prof. Dr. Kavikumar Jacob
Assoc. Prof. Dr. Mohammad Mahadi
Abd Jamil
Dr. Fauziahanim Che Seman
Fauzi Mohd Johar
Dr. Mariyam Jamilah Homam
Wadhah Abdo
Mohammed alAshwal
D. Khairun Nidzam Ramli
Norazila Mohd
Saleh
Noor Syazana
Arshad
Prof. Ir. Dr. Ahmad
Faizal Ahmad
(UMP)
Prof. Dr. Norbahiah
Misran
(ANGKASA UKM)
Prof. Dr. Muhammad
Amin
(SUPARCO, Pakistan)
Dr. Achmad Munir
(ITB, Indonesia)
Prof. Shabunin Sergey
(Ural Federal
University,Rusia)
Dr. Karthigesu Nagarajoo
Dr. Noorsaliza Abdullah
Dr. Nor Shahida Mohd Shah
Mr. Mohd. Hakimi Zohari
Siti Hafizah Yusop
Mr. Shipun Anuar Hamzah
Ijaz Khan
Pn. Sharifah Saon
Hadi Abdullah
Pn Nurulhuda Ismail
Abdirahman
Pn. Elfarizanis Baharudin
Mohamud Shire
External
Hannes
Masandig
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
4th PUBLICATION AWARD UTHM 2014
The 4th Publication Award 2014 was held on 4th November 2014 at Banquet Hall Sultan
Ibrahim, UTHM. The award was aimed at recognizing researchers who have successfully
shown an excellent performance on publications from 2012 to 2013. The Head of RF and
Reconfigurable Antenna Design Cluster of WARAS received two awards; Young Publication
Award and Best Book Award (Science Technology Engineering). The awards were presented by
the Vice Chancellor of UTHM, Prof. Dato' Dr. Mohd Noh Dalimin and the Deputy ViceChancellor (Research and Innovation) UTHM, Prof. Dr. Wahid Razzaly. Congratulations.
Excellence Award of Research and Innovation UTHM
WARAS Centre is among the most active Research Centres in UTHM. Based on the research
performance and achievements in research and innovation activities from 2012 to 2013,
Head of Radio Frequency & Antenna Design Cluster under is also Head of WARAS Centre,
Assoc. Prof. Dr. Muhammad Yusof Ismail has been awarded a Special Incentive Vice
Chancellor Award UTHM and University Incentive Award UTHM at Research and Innovation
Excellence Awards in Research and Innovation 2014 which was held on 3rd November 2014.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
UTHM – Industry Open Day 2014
On August 20, 2014, WARAS Centre was invited as an exhibitor at UTHM – Industry Open Day
2014 which was held at Dewan Tunku Mahkota Ismail (DTMI). Datuk Dr. Mohd Azhar Hj.
Yahaya, Deputy Chief Secretary of Ministry of Science, Technology and Innovation (MOSTI)
accompanied by Vice Chancellor of UTHM, Prof. Dato' Dr. Mohd Noh Dalimin visited WARAS
booth and appreciate the great achievements of WARAS research team.
Invited Scientist at Ural Federal University, Russia
A research fellow from Radio Frequency and Reconfigurable Antenna Design cluster of Wireless
and Radio Science Centre, Associate Professor Dr. Muhammad Yusof Ismail received an
international recognition as Invited Scientist by Institute of Radio Electronics, Ural Federal
University (UrFU) in Ekaterinburg, Russia. The collaboration between WARAS UTHM and UrFU
began in 2013 through series of continuous discussions headed by Professor Dr. Shabunin
Sergey from UrFU and Associate Prof. Dr. Muhammad Yusof Ismail of WARAS UTHM. During the
official program which started on 17th May 2014 in Ekaterinburg, several workshops on
Reconfigurable Antennas had been organized involving researchers from Institute of
Radioelectronics UrFU. In line with the mission of WARAS Centre in exploring global partners,
some collaborative research projects between WARAS UTHM and UrFU Russia have been
identified which could benefit both the institutions. On the last day of the programs, Associate
Professor Dr. Muhammad Yusof was brought to a courtesy visit to meet the Vice Chancellor of
Ural Federal University, Professor Knyasev Sergey.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
Special Excellent Award of Research and Innovation UTHM
In conjunction with the official visit of Education Minister (II), Y.A.B Dato' Idris Jusoh to
Universiti Tun Hussein Onn Malaysia (UTHM) on 22nd February 2014, the Head of RF &
Reconfigurable Antenna Design Cluster, Assoc. Prof. Dr. Muhammad Yusof Ismail has been
awarded a Special Excellent Award in Research and Innovation based on his achievements in
2013. The award was presented by the Education Minister (II), Y.A.B Dato' Idris Jusoh. The
Education Minister (II) then visited WARAS booth where he was briefly explained on research
projects carried out at WARAS Centre.
Visit by Professor Shabunin Sergey from Ural Federal University Rusia
On 12nd February 2014, for the first time WARAS received a visiting professor from Ural
Federal University, Russia, Professor Shabunin Sergey. In the short visit, Professor Shabunin
Sergey was brought to a courtesy visit to meet the Vice-Chancellor of UTHM, Prof. Dato'. Dr.
Mohd Noh Dalimin. Head of Centre, Assoc. Prof. Dr. Muhammad Yusof Ismail gave a brief
explanation about key research clusters and current research projects of WARAS. Some
collaborative research projects between WARAS and Ural Federal University, Russia were also
discussed during the visit.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
Seoul International Invention Fair (SIIH 2013), South Korea
WARAS participated at 2013 Seoul International Invention Fair (SIIF 2013) which was held from
29th November to 3rd December 2013 at COEX Hall, Gangnam Gu Korea. In a competition involving
more than 700 participants comprising 32 countries, a product represented by a group of
researchers headed by Assoc. Prof Dr. Muhammad Yusof Ismail entitled "Frequency Selective
Reflector for Radio Communications" funded by Prototype Research Grant Schedule (PRGS) was
awarded a Semi Grand Prize Award which is the second highest award in the innovation
competition.
Memorandum of Understanding signing ceremony between UTHM and
Institute of Space Technology (IST), Islamabad,
August 30, 2013 - A special event of Memorandum of Understanding signing ceremony between
Universiti Tun Hussein Onn Malaysia (UTHM) and Institute of Space Technology (IST), Islamabad,
Pakistan was organized at the Banquet Hall Tunku Tun Aminah Library, UTHM. The program started
with a courtesy visit of IST delegation led by the Vice Chancellor of IST, Brig. Gen. Prof. Engr. Imran
Rahman to the Office of the Vice Chancellor of UTHM. In the keynote address, the Vice Chancellor of
UTHM, Prof. Dato' Dr. Mohd Noh Dalimin welcomed IST delegation to UTHM and believed that
research collaboration between Wireless and Radio Science Centre (WARAS), UTHM and IST,
Islamabad could be further enhanced in the future.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
Officicial Visit by Prof. Dr. Muhammad Amin, SUPARCO, Pakistan
On 1st July 2013, WARAS received a visit by Prof. Dr. Muhammad Amin from Space and Upper
Research Commission (SUPARCO), Pakistan. A brief meeting with WARAS Research Fellows and
Dean of the Faculty of Electrical and Electronics Engineering, Prof. Ir. Dr. Zainal Abidin Ahmad was
held on the first day of the visit. Some potential projects were discussed with all WARAS Research
Fellows during the meeting. On the second day, Professor. Dr. Muhammad Amin, was brought to a
courtesy visit to meet the Vice-Chancellor of UTHM, Prof. Dato'. Dr. Mohd Noh Dalimin.
WARAS Postgraduate Seminar
In order to enhance the quality of research projects carried out at WARAS Centre a Seminar on
Postgraduate Research was held on 3rd July 2013. During the program, all WARAS postgraduate
students presented their research progress in front of the visiting Professor of SUPARCO, Prof.
Dr. Muhammad Amin and Head of WARAS, Assoc. Prof. Dr Muhammad Yusof Ismail and other
WARAS Research Fellows. Prof. Amin appreciated the research work carried out at WARAS and
gave fruitful suggestions for the improvement and progress of the research projects. Prof. Amin
also shared his experience during his postgraduate studies and a motivational talk for further
improvement and enhancement of WARAS research activities.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACTIVITIES
Distinguished Lecture Series of WARAS
WARAS had organized a distinguished Lecture Series in conjunction with Memorandum of
Understanding (MoU) ceremony between WARAS Centre and Institute of Space Technology,
Islamabad on 1st July 2013. An invited speaker from Space and Upper Atmosphere Research
Commission (SUPARCO), Prof. Dr. Muhammad Amin presented a topic entitled “An Overview of
Satellite Communications on The Move (COTM) Systems and its Development at SUPARCO”.
International Invention Innovation and Technology Exhibition (ITEX 13)
Kuala Lumpur Convention Centre (KLCC), Kuala Lumpur, Malaysia
A team of WARAS researchers from Radio Frequency & Reconfigurable Antenna Design cluster
headed by Assoc. Prof. Dr. Muhammad Yusof Ismail participated at the 24th International,
Invention, Innovation and Technology Exhibition (ITEX'13) which was held from 9 th - 11th May
2013 at KLCC, Kuala Lumpur. WARAS team successfully exhibited two research products in the
exhibition and was awarded with 2 gold medals.
1) Frequency Selective Reflector for Radio Communications.
2) Miniaturized Broadband Paper Based Substrate Antenna for Automotive Systems.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
ACHIEVEMENTS
NO
1
2
NAME OF EVENT
Special Excellence Award of
Research and Innovation UTHM
2013 Seoul International
Invention Fair (SIIF 2013)
PECIPTA 2013
3
AWARDS
RECIPIENT
Special Excellence Award of Research
and Innovation UTHM
Associate Profesor
Dr. Muhammad Yusof
Ismail
Miniaturized Dual Frequency Planar
Antenna for Radio Systems
1. Grand Prize Award
2. Gold Medal
Miniaturized Broadband Paper Based
Substrate Antenna for Automotive
Systems
-
4
5
Research and Innovation Festival
2014 UTHM
Excellence Award of Research
and Innovation UTHM
Special Excellence Award of Research
and Innovation UTHM
Associate Profesor
Dr. Muhammad Yusof
Ismail
1. Special Incentive Vice
Chancellor Award UTHM
2. University Incentive Award
UTHM
Associate Profesor
Dr. Muhammad Yusof
Ismail
Best Book Award
UTHM Scopus Indexed Publication
(Document)
4th Publication Award UTHM 2014
UTHM Scopus Indexed Publication
(Citation)
UTHM Scopus Indexed Publication
(H-Index) Award
Copyright 2015 by WARAS
Associate Profesor
Dr. Muhammad Yusof
Ismail
Silver Medal
Young Publication Award
6
Associate Profesor
Dr. Muhammad Yusof
Ismail
Associate Profesor
Dr. Muhammad Yusof
Ismail
Associate Profesor
Dr. Muhammad Yusof
Ismail
Associate Profesor
Dr. Muhammad Yusof
Ismail
Associate Profesor
Dr. Muhammad Yusof
Ismail
Associate Profesor
Dr. Muhammad Yusof
Ismail
Prof. Dr. Maizam Alias
Assoc. Prof. Dr.
Muhammad Mahadi Abdul
Jamil
Dr. Fauziahanim Che
Seman
10
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WARAS Highlights
Issue No. 3/2015
SPECIAL ARTICLE
Half Turn Half Wavelength Wide Axial Ratio Beamwidth Quadrifilar Helix
Antenna for Satellite Application
Prof. Dr. Muhammad Amin
(Associate Research Fellow of WARAS Centre)
Institute of Space Technology, Islamabad
Professor Muhammad Amin is a visiting professor of Wireless and Radio Science Centre (WARAS) Universiti Tun
Hussein Onn Malaysia (UTHM). On 1st July 2013, he was invited to delivere a distinguished lecture series at WARAS
Centre. The work presented in this article has been done in collaboration with WARAS Centre.
I. INTRODUCTION
Abstract- In this paper, it has been shown that the
Axial Ratio (AR) beamwidth of conventional
Quadrifilar Helix Antenna (QHA) can be improved by
breaking the four monofilars of QHA at the centre
where current is minimum and adding radial stubs on
both sides which provide the reactive coupling
between the two ends. The AR beamwidth (AR ≤ 3
dB) varies from 118o to 223o as the length of the radial
stubs is increased from 3 mm to 13 mm in all
monofilars, keeping the front to back ratio (F/B)
greater than or equal to 10 dB. The optimum value of
AR beamwidth (AR ≤ 3 dB) of 223o is achieved when
the radial stub length is 7 mm. The gain, 3-dB gain
beamwidth, bandwidth for VSWR ≤ 2 (with reference
to the resonant input impedance) and F/B are 5.52 dB,
118 o, 40 MHz and 16.7 dB respectively at the resonant
frequency of 2460 MHz. Simultaneously, the
configuration achieved a reduction in size of 24%.
Index Terms- Quadrifilar Helix Antenna (QHA);
Circular Polarization (CP); Axial Ratio (AR); Half
Power Beamwidth (HPBW); Axial Ratio Beamwidth
Copyright 2015 by WARAS
Quadrifilar helix antennas (QHAs) are widely used in
space and land applications because of its many attractive
features such as compactness, light weight, low profile,
sufficient gain, good circularity, wide 3 dB gain
beamwidth and polarization & radiation pattern
reconfigurability [1]–[8].
It is also one of the antennas used for small satellite
platforms / satellite ground receivers for applications such
as personal communication networks via satellite on
handheld receivers [9], future Land Mobile satellite
(LMS) communication systems using satellite MIMO
[10], [11], GPS receivers [5], [12]–[15], in Pico satellite
[16] and small satellite platforms [17] as telemetry,
tracking and command (TT&C) / communication payload
antenna [18]. QHA is also suitable for satellite Digital
Audio Broadcast (DAB) applications like Sirius XM
satellite radio [19]. In Low Earth Orbit (LEO) satellites,
onboard antennas use circular polarization [5] owing to
the continuous change in the direction between satellite
and ground receiving antenna that would in case of linear
polarization require polarization adjustment. . In case of
LEO satellites, angle between the transmitting and
receiving antennas changes significantly over a single
pass window. QHA, with wide gain beamwidth ensures
sufficient received power power without introducing
polarization losses, if the usable gain beamwidth falls
within the AR beamwidth.
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SPECIAL ARTICLE
However if the later is narrower than the former,
polarization loss would introduce additional decrease in
gain within the usable gain beamwidth. Therefore wide
AR beamwidth antennas are important for onboard use of
LEO/MEO satellites and satellite ground receivers,
especially at low elevation angles where normally AR
deteriorates quickly.
A good axial ratio in one hand of CP (e.g. RHCP) also
provides better isolation from the other (i.e. LHCP). This
may give reliability if polarization is used as one of the
modulation parameters. Many improvements with respect
to bandwidth (dual band operation) [20], [21], size
reduction [2], [21], [22], dual mode [6], [12], [21], [23]
and self phasing [24] were made. However, no significant
work has been reported on improvement in AR
beamwidth of QHA. It has been shown in various works
previously reported that the performance characteristics
of QHA can be improved by modifying the geometrical /
physical parameters of the antenna [2], [6], [21], [25].
In this paper a modification has been made to the
conventional half-turn QHA design to achieve 3 dB AR
beamwidth ranging from 118o to 223 o with good gain and
front to back ratio (F/B).
In normal mode of operation of a half turn, half
wavelength QHA, current distribution on any of the two
bifilars is such that the current null is formed at the centre
of the helical sections. Therefore, helical sections (in
form of stub lengths) have been incorporated in all the
volutes of the QHA where minimum current occurs to
improve the AR as shown in [Fig.1]. This change would
adjust the ratio of vertical to horizontal electric field. By
altering the radial stub length, [Fig.2] a parametric study
of QHA’s various characteristics such as gain, F/B, 3 dB
gain beamwidth, ARBW, AR at 3 dB gain beamwidth
points, frequency and VSWR were carried out and
optimum value of radial stub length that gives improved
AR / AR beamwidth was selected for the final antenna
model.
Fig. 2. Current distribution on QHA. (a) Conventional QHA. (b) QHA
variant with axial and radial gap. (c) Current distribution comparison of
CQHA and QHA variant.
II. DESIGN AND SIMULATION
In CP, AR depends on the ratio of vertical to horizontal Efield magnitudes and the phase difference between the
two, which for 0 dB AR should be 1 and 90 o respectively.
In bifeed network, therefore, a 3 dB 90 o hybrid is used
that provides equal voltage at the two feeds with 90o
phase difference. However due to radiation pattern (RP)
characteristics, the radiated fields of horizontal and
vertical polarization are not of same magnitude in all
directions, which results in deviation of AR from ideal
value of 0 dB. (The phase difference between the two
fields is adequately maintained, which is at the output of
the 3 dB hybrid). In normal mode of operation of a half
turn and half wavelength QHA, current distribution as
shown in [Fig.2] on any of the two bifilars is such that a
current null is formed at the centre of the helical sections
and the current maxima occurs at the centre of the radial
sections of the bifilar loop [2].
The vertical to horizontal field ratio of conventional QHA
with or without gap shows that horizontal field is lesser in
magnitude as one moves away from the boresight. It is
expected that the AR would improve if the decrease in Hfield is compensated by adding horizontal current
elements. For this, a gap is introduced at the current
minima points of the four helical sections which divide
the conventional QHA structure (as shown in [Fig.2]) into
two halves at the middle along the axial direction.
Simulations were carried out using Numerical
Electromagnetic Code (NEC) [26] tool to know the
optimum axial and radial gap before adding stubs with
helical sections at the centre along the circumference of
the helix.
Fig. 1. Modified QHA schematic
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
SPECIAL ARTICLE
Fig. 6. Axial Ratio plots of QHA variants at different stub
lengths
Fig. 3. Effects of radial gap on radiation characteristics of QHA
The results are shown in [Fig.3] [Fig.4] [Fig.5]. It is
evident from the parametric study shown in [Fig.4] that
gain, F/B and AR beamwidth have reduced significantly
as the axial gap is increased between the two halves of the
QHA. This happens due to the decrease in mutual
coupling among the two halves of QHA as energy in
horizontal field spreads and the radiation pattern goes
omnidirectional reducing AR beamwidth, gain and F/B as
the 3 dB gain beamwidth increases.
Fig. 4. Effects of axial gap on radiation characteristics of QHA
However, radiation characteristics of the QHA have not
changed much with the introduction of radial gap except
few variations in some of the parameters which show the
increase in 3 dB gain beamwidth at the expense of
improved F/B and decreased AR beamwidth as the gap
was increased between the two halves of the QHA as
shown in [Fig.3]. An axial and radial gap of 2.4 mm and
14o were finally selected by considering above
observations. Now circumferential stubs are added at the
current minima points to see whether it improves the ratio
of vertical to horizontal electric fields and hence the AR.
A parametric study is carried out to observe the effects of
stub length on various parameters of the antenna with the
objective to improve the AR while keeping other
characteristics of the antenna such as gain, 3 dB
beamwidth and F/B ratio within adequate range. The
results are shown for various stub lengths (SL) in [Fig.6]
[Fig.7] [Fig.8].
Fig. 5. Effects of radial and axial gap on resonant frequency and VSWR
of QHA variants.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
SPECIAL ARTICLE
Introduction of circumferential (radial) stubs in the QHA
have influenced greatly on the AR beamwidth as shown in
[Fig.7]. The 3 dB AR beamwidth varied from 118 o to 223o
as the length of the radial stubs is increased from 0 mm to
10 mm in all monofilars as shown in [Fig.7], keeping the
front to back ratio
Fig. 8. Effects of different stub lengths on resonant frequency and
VSWR of the modified QHA variants
Simultaneously, this configuration of QHA achieved a
reduction in size of approximately 24 percent (Resonant
frequency reduces to 2460 MHz from 3240 MHz) when
compared to conventional QHA as frequency has decreased
with the addition of the stub length .
Fig. 7. Effects of different stub lengths on radiation characteristics
of QHA.
In this paper, we have demonstrated that a significant
increase in the axial ratio beamwidth (223 o) of a QHA can
be achieved by folding the helix in the region where the
current amplitude is at its minimum. This simple technique
is suitable for LEO/MEO satellites and hand held receivers
for better and wide angular or lower elevation angles
reception of the circularly polarized signals. Furthermore,
this antenna configuration achieved reduction in size of
approximately 24%.
An official signing ceremony of Memorandum of Understanding between Universiti Tun Hussein Onn Malaysia
(UTHM) and Institute of Space Technology (IST), Islamabad was held on 30 th August 2013 at Banquet Hall Tunku
Tun Aminah Library UTHM.
Since the official MoU ceremony, researchers from both the institutions have been working collaboratively on Wireless
Communications and Antenna Technology.
Copyright 2015 by WARAS
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WARAS Highlights
Issue No. 3/2015
WARAS RESEARCH CLUSTERS
RADIO FREQUENCY &
RECONFIGURABLE ANTENNA DESIGN
Leader
MICROWAVE DEVICES AND
FREQUENCY SELECTIVE SURFACES
Assoc. Prof. Dr.
Muhammad Yusof
Ismail
Dr. Fauziahanim Che
Seman
Leader
Prof. Ayob Johari
Members
Members
Dr. Nor Shahida Mohd
Shah
Prof. Ir. Dr. Zainal
Abidin Ahmad
Elfarizanis Baharudin
Shipun Anuar Hamzah
MOBILE AND WIRELESS
COMMUNICATIONS
Assoc. Prof. Dr. Jiwa
Leader
Abdullah
Dr. Noorsaliza Abdulah
Members
SOFTWARE DEVELOPMENT
RESEARCH
CLUSTERS
Leader
Dr. Khairun Nidzam
Ramli
Members
Dr. Kavikumar Jacob
Mohd Hakimi Zohari
Sharifah Saon
MULTI-DISCIPLINARY RESEARCH
Leader
RADIO SCIENCE
Dr. Nor Shahida Mohd
Shah
Leader
Prof. Dr. Maizam Alias
Members
P. M. Dr. Muhammad
Mahadi Abdul Jamil
Members
P. M. Dr Zawati Harun
Dr. Mariyam Jamilah
Homam
Dr. Mohd Hezri Mohd
Lwi@Mokhtar
Dr. Karthigesu A/L
Nagarajoo
Abul Khair Anuar
Research Projects
In line with the focused research areas of WARAS, a number of research grants have been
granted from various agencies which enable research activities to be carried out efficiently. Ongoing research grants are as follows:
No
Vot
1
1119
2
1233
3
U102
4
1323
Title
Integrated Antenna Technology for Automotive Systems.
Leader: Assoc. Prof. Dr. Muhammad Yusof Ismail
(Collaboration with ANGKASA, UKM)
Characterisation of Ionospheric Propagation at the Equatorial and Polar
Regions
Leader: Dr. Mariyam Jamilah Homam
Polarization-Independent Multi-Channel Regeneration Based On FiberOptic Parametric Amplifier
Leader: Dr. Nor Shahida Mohd Shah
Multi-band Characterizable Graphite Based Antenna With Low Cross
Polarization Performance For Radio Astronomy Systems
Leader: Assoc. Prof. Dr. Muhammad Yusof Ismail
Copyright 2015 by WARAS
Source
RACE
FRGS
RSGS
MDR
15
No
Vot
5
U103
6
1437
7
1432
8
1449
Title
Investigation of Dielectric Behaviors of Ananas Comosus for
Ripeness Assessment using Non-invasive Technique
Leader: Dr. Fauziahanim Che Seman
Multi-channel Phase Shift Keying Signal Regeneration Based On
Fiber-Optic Parametric Amplifier
Leader: Dr. Nor Shahida Mohd Shah
The Effect Of Culture-based Multi-modal Mind Games Immersion
On The Social Interaction Skills Of Autistic Children
Leader: Prof. Dr. Maizam Alias
Understanding The Mediation And Moderation Roles Of Affects In
The Intefrated Affective-cognitive Learning Approach And Academic
Achievement Relationship
Leader: Prof. Dr. Maizam Alias
Source
RSGS
RACE
FRGS
ERGS
CONGRATULATIONS !!!
Congratulations to Hairul Nizam Tukimin and Dr. Nor Shahida Mohd Shah on the arrival of
your little angel. May your new born angel live a long and happy life. Congratulations!
Copyright 2015 by WARAS
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