Dr. AZREMI ABDULLAH AL-HADI
Universiti Malaysia Perlis
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Academic Career Length
22Years (2005-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications18 March 2014 in Microwave and Optical Technology Letters
Journal Article
AZREMI ABDULLAH AL-HADIJIJanne Ilvonen
Janne IlvonenRVRisto Valkonen
Risto Valkonen
VVVille Viikari
Ville Viikari8 May 2020 in IEEE Access
Journal Article
RJRahil Joshi
Rahil Joshi
EHEzzaty Faridah Nor Mohd Hussin
Ezzaty Faridah Nor Mohd Hussin
Ping Jack SohMJMohd Faizal Jamlos
Mohd Faizal JamlosHLHerwansyah Lago
Herwansyah Lago
PSPodilchak Symon
Podilchak Symon +1
A wearable textile antenna with dual-band and dual-sense characteristics is presented in this work. It operates at the 2.45 GHz band for WBAN and WLAN applications, and at the 1.575 GHz band for Global Positioning System (GPS) applications. An antenna backing based on an artificial magnetic conductor (AMC) plane operating at 2.45 GHz band is introduced to reduce the backward radiation and to improve antenna gain. It consists of a 3W3 array of square patch unit cells, where each unit cell is integrated with four square slits and a square ring. A square-shaped patch is then located on top of the substrate as its radiator. To enable dual-band operation, two corners of this radiator are truncated, with each of the four corners incorporated with a rectangular slit to enable its circular polarization characteristic in the GPS band. Simulation and experimental results are in good agreement and indicate proper antenna operation with linear polarization in the 2.45 GHz band and circular polarization in the 1.575 GHz band, with realized gain of 1.94 dBi and 1.98 dBic, respectively.
5 April 2017 in IEEE Microwave Magazine
Journal Article
NANur Farahiyah Mohamad Aun
Nur Farahiyah Mohamad Aun
Ping Jack SohAZREMI ABDULLAH AL-HADIMJMohd Faizal Jamlos
Mohd Faizal Jamlos
GVGuy A.E. Vandenbosch
Guy A.E. Vandenbosch
Dominique SchreursWearable devices present an increasingly attractive solution for numerous applications in sectors ranging from the military to medicine to consumer electronics. They will also play an integral role in the imminent fifth-generation (5G) networks, which are expected to operate with higher bit rates and lower outage probabilities in smaller microcells and picocells covering broader areas than fourth-generation (4G) or older technologies. In addition, beam reconfigurability and beamforming are expected to facilitate spectral and energy efficiencies at both the mobile device and base station levels. In overcoming the limitations of current 4G systems, the new features and capabilities envisioned for 5G networks will radically change applications in transportation, health care, smart homes, and wireless robots, among many others [1], [2].
7 July 2021 in IEEE Access
Journal Article
Bashar Bahaa Qas EliasPing Jack SohAZREMI ABDULLAH AL-HADIPAPrayoot Akkaraekthalin
Prayoot AkkaraekthalinGVGuy A E Vandenbosch
Guy A E VandenboschCharacteristic modes can be used to solve many radiation and scattering problems involving fully conducting structures. The basic concept is to use eigenvalues and eigenvectors of the characteristic mode equations of a certain topology, and to use these eigenmode currents to control the radiating structure’s behavior. This is accomplished by understanding the overall reflection and radiation characteristics across the operating frequency band. More specifically, characteristic modes are effective for example in determining the best location for the excitation of a radiating structure. In this paper, a comprehensive overview is provided to the different studies and their results obtained for different antennas that are based on the characteristic mode analysis method. A future perspective is given regarding the potential of this method in antenna analysis and design.
1 January 2009 in Progress In Electromagnetics Research B
Journal Article
SASaidatul Norlyana Azemi
Saidatul Norlyana AzemiAZREMI ABDULLAH AL-HADIRARaad Badlishah Ahmad
Raad Badlishah AhmadPing Jack SohFMFareq Malek
Fareq Malek
1 January 2017 in International Journal of Antennas and Propagation
Journal Article
ALAbdul Halim Lokman
Abdul Halim Lokman
Ping Jack SohSASaidatul Norlyana Azemi
Saidatul Norlyana AzemiHLHerwansyah Lago
Herwansyah LagoSPSymon K. Podilchak
Symon K. Podilchak
SGSteven Gao
Steven Gao
+4
Cube Satellite (CubeSat) technology is an attractive emerging alternative to conventional satellites in radio astronomy, earth observation, weather forecasting, space research, and communications. Its size, however, poses a more challenging restriction on the circuitry and components as they are expected to be closely spaced and very power efficient. One of the main components that will require careful design for CubeSats is their antennas, as they are needed to be lightweight, small in size, and compact or deployable for larger antennas. This paper presents a review of antennas suitable for picosatellite applications. An overview of the applications of picosatellites will first be explained, prior to a discussion on their antenna requirements. Material and antenna topologies which have been used will be subsequently discussed prior to the presentation of several deployable configurations. Finally, a perspective and future research work on CubeSat antennas will be discussed in the conclusion.
About Me
(Senior Member,
IEEE) was born in MI, USA. He received his
M.Sc. degree in communication engineering from
Birmingham University, U.K., in 2004, and his
D.Sc. degree in technology from Aalto University,
Finland, in 2013.
He is currently working as an Associate Professor
and holds the position of Dean of the Faculty
of Electronic Engineering Technology, Universiti
Malaysia Perlis (UniMAP), where he has been
with the School of Computer and Communication Engineering since 2002.
His current research interests include design and performance evaluation of
multielement antennas, mobile terminal antennas and their user interactions,
and wireless propagation.
Dr. Al-Hadi is active in volunteering work with the IEEE Malaysia
Section, acting as the Vice Chair of the IEEE Antenna Propagation/
Microwave Theory Techniques/Electromagnetic Compatibility
(AP/MTT/EMC) Malaysia Chapter, and the Counselor of the IEEE UniMAP
Student Branch. He is a Chartered Engineer of the Institution of Engineering
and Technology (IET), U.K., a Professional Technologist of the Malaysia
Board of Technologist (MBOT), and a member of the Board of Engineers
Malaysia (BEM), Malaysia. He was a recipient of the Best Student Paper
Award presented at the Fifth Loughborough Antennas and Propagation Conference
(LAPC 2009) and of the CST University Publication Award in 2011.