Hasliza A Rahim @ Samsuddin
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Preferred name
Hasliza A Rahim @ Samsuddin
Official Name
A Rahim @ Samsuddin, Hasliza
Alternative Name
A. Rahim, Hasliza
Rahim, Hasliza A.
Rahim Samsuddin, H. A.
Rahim, Hasliza Abdul
Rahim, Hazliza A.
Rahim, H. A.
Rahim, H.
Hasliza,
Rahim H, Abd
RahimAtSamusuddin, Hasliza A.
A Rahim, Hasliza
Rahim At Samsuddin, Hasliza A.
ARahim, H.
Rahim Samsuddin, A. Hasliza
Rahim At Samsuddin, H. A.
Rahim, Hasliza Abd
Rahim, Hasliza
Rahim At Shamsuddin, H. A.
Main Affiliation
Scopus Author ID
57202496362
Researcher ID
ABE-3328-2020

Research Output

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The wearable textile-based microstrip patch antenna preliminary design and development

2017-07-02 , Engku Embong E.N.F.S. , Khairul Najmy Abdul Rani , Hasliza A Rahim @ Samsuddin

This paper presents a preliminary development of a wearable textile microstrip patch antenna operating for wireless body area network (WBAN) at the center frequency, fc of 2.40 GHz. Textile materials are suitable to be designed as wearable antenna substrates due to their low dielectric constant or relative permittivity characteristics. Precisely, in this project, jeans fabric or denim with the relative permittivity, ϵr = 1.70 and thickness of 1.00 mm is chosen as a substrate attached to SheildIt Super as a conductive material with the thickness of 0.17 mm and conductivity of 6.67 × 105 S/m, respectively. In the first stage, a microstrip patch antenna layout with an edge feeding technique is designed and simulated by using Keysight Advanced Design System (ADS) software. In the second stage, a wearable textile microstrip patch antenna is fabricated, integrated, and hidden inside clothing, properly. Simulation and fabrication measurement results show that the designed antenna characteristics are suitable for an industrial, scientific, and medical radio (ISM) band, which is at the fc = 2.40 GHz. Moreover, relative permittivity, ϵr and thickness, h of the developed textile-based substrate affect significantly a wearable microstrip patch antenna radiation performance.

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Bandwidth Enhancement of Chamfered UWB Monopole Textile Antenna With Truncated Ground Plane for Breast Cancer Detection

2023-01-01 , Qureshi A.W. , Hasliza A Rahim @ Samsuddin , Allan Melvin Andrew , Malek M.F.A. , Al-Bawri S.S.

A bandwidth enhancement of chamfered square Ultrawideband (UWB) monopole textile antenna with truncated ground plane for breast cancer detection is presented in this paper. The overall dimensions of 28.5 x 28.5 x 3.34 mm3, covering a super bandwidth of range between 2.23 and 18.24 GHz is obtained. A total impedance bandwidth (<-10 dB) of 16.01 GHz is achieved with a total efficiency of 93.54% and realized gain of 12.95 dBi at 9.3 GHz.

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Current Sensor Based on Planar Rogowski Coil

2021-01-01 , Khalid K.A. , Muhammad Izuan Fahmi Romli , Ayob Nazmy Nanyan , Muhammad Zaid Aihsan , Wan Azani Wan Mustafa , Hasliza A Rahim @ Samsuddin , Alfilh R.H.C.

This paper discusses the design and development of current sensor based on planar Rogowski Coil. A Rogowski coil is a toroid of wire used to measure an alternating current through a cable encircled by the toroid. The aim of this study is to design and develop planar Rogowski as a sensor for current measurement and detection using printed circuit board (PCB). The problem of this project is Rogowski Coil (RC) current sensor has same principle as Current Transformer, but the design is different, especially the RC is developed in PCB. Before starting in development of Rogowski Coil current sensor, a few studies are required to review past research on related topic to develop this project. The winding of Rogowski coil current sensor is design by using design software which is EasyEDA to achieve very good sensitivity for wide bandwidth range of frequency at the lowest cost. Finally, the prototype developed is experimented to get the result. The experimental results are discussed and evaluated regarding the performance of the prototype. The highest induced voltage that detected is 55.3 mV and the lowest induced voltage is 11.1mV. The design of Rogowski sensor is significantly shown the best performance of the current sensor in term of sensitivity and bandwidth.

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Mobile Green E-Waste Management Systems using IoT for Smart Campus

2021-07-26 , Khairul Najmy Abdul Rani , Hasliza A Rahim @ Samsuddin , Ong B.T. , Muzammil Jusoh , Mohd Najib Mohd Yasin , Thennarasan Sabapathy , Wan Azani Wan Mustafa , Mohd Aminudin Jamlos , R Badlishah Ahmad , Hammood D.A.

This paper presents the design and development of mobile "green"electronic waste (e-waste) management systems using Internet of Things (IoT) for smart campus. The system uses Raspberry Pi 3 Model B v1.2 microcontroller for monitoring e-waste object detection, e-waste count, and bin percentage level, respectively. TensorFlow Lite application programming interface (API) is used to run Single Shot Multibox Detector (SSD)Lite-MobileNet-v2 model trained on Microsoft Common Objects in Context (MSCOCO) dataset for e-waste object detection in image. All the monitoring data are stored and retrieved in ThingSpeak cloud platform using Hypertext Transfer Protocol (HTTP) and Message Queuing Telemetry Transport (MQTT) protocol over the Internet and displayed via interactive Android-based mobile user interface (UI). Furthermore, automatic e-mail notification will be sent to waste collector for bin collection whenever e-waste bin percentage level is greater than predetermined threshold value of 80% full.

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Triple-Band Circularly Polarized Dielectric Resonator Antenna (DRA) for Wireless Applications

2023-01-01 , Azuwa Ali , Mohd Najib Mohd Yasin , Ismahayati Adam , Rambe A.H. , Jamaludin M.H. , Hasliza A Rahim @ Samsuddin , Cengiz C. , Razak M.I.S.A.

This paper proposes a new dielectric resonator antenna (DRA) design that can generate circularly polarized (CP) triple-band signals. A triple-band CP DRA antenna fed by a probe feed system is achieved with metal strips structure on side of DRA structure. The design start with conventional rectangular DRA with F shaped metal strips on DRA structure alongside the feed. Then, the F metal strip is enhanced by extending the length of the metal strip to obtain wider impedance bandwidth. Further improvement on the antenna performance is observed by improvised the conventional DRA structure. The method of removing part of DRA bottom resulted to higher antenna gain with triple band CP. The primary features of the proposed DRA include wide impedance matching bandwidth (BW) and broadband circular polarization (CP). The primary features of the proposed DRA include wide impedance matching bandwidth (BW) and broadband circular polarization (CP). The CP BW values recorded by the proposed antenna were ∼ 11.27% (3.3–3.65 GHz), 12.18% (4.17–4.69 GHz), and 1.74% (6.44–6.55 GHz) for impedance-matching BW values of 35.4% (3.3–4.69 GHz), 1.74% (5.36–5.44 GHz), and 1.85% (6.41–6.55 GHz) with peak gains of 6.8 dBic, 7.6 dBic, and 8.5 dBic, respectively, in the lower, central, and upper bands. The prototype of the proposed antenna geometry was fabricated and measured. A good agreement was noted between the simulated and the measured results.

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A Frequency-Reconfigurable Microstrip Antenna with Constant Dipole-Like Radiation Patterns Using Single Bias, Triple Varactor Tuning with Reduced Complexity

2022-03-01 , Hossain K. , Thennarasan Sabapathy , Muzammil Jusoh , Soh Ping Jack , R Badlishah Ahmad , Jais M.I. , Mohamed Nasrun Osman , Mohd Najib Mohd Yasin , Hasliza A Rahim @ Samsuddin , Saluja N. , Abbasi Q.H.

This work proposes a novel frequency-reconfigurable circular patch antenna incorporated with a rectangular slot and a narrow slot capable of producing constant dipole-like radiation patterns. The antenna compactness is achieved with the integration of the rectangular slot defected ground structure (DGS) on the ground. The proposed antenna is able to perform continuous frequency tuning between 1.91 and 2.77 GHz with a frequency ratio of 1.5:1, in addition to stable dipole-like radiation patterns. The resonant frequency of the antenna is controlled by tuning a simple DC biasing network that consists of three RF varactor diodes located on the narrow slot DGS. Implementing the DC biasing network at the narrow slot DGS while maintaining the large slot DGS helps the antenna miniaturization and maintains the constant dipole-like radiation pattern over all frequency tuning range. The results are validated via simulations and experimental validations in terms of reflection coefficients and the radiation patterns. Measurements indicated that an impedance bandwidth of 85 MHz is featured for each tuned frequency band, with dipole-like patterns and an average gain of 1.57 dBi.

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Design of Compact UHF-RFID Tag Antenna with Meander Line Technique

2020-03-20 , Fazilah A.F.M. , Muzammil Jusoh , Ammar Zakaria , Thennarasan Sabapathy , Mohd Firdaus Ibrahim , Mohamed Nasrun Osman , Yaasin M.N. , Malhotra S. , Hasliza A Rahim @ Samsuddin

In this paper, a compact UHF RFID tag antenna that can operate at Malaysia UHF RFID frequency (860 MHz - 960MHz) is proposed. The antenna with a common geometry structure without any shorting pin consists of 90degree angled line (meander line) and double T-match structure. The proposed antenna has been designed and simulated using CST Simulation software. The proposed tag antenna design shows a good performance in terms of size, gain and impedance with a dimension of 36 mm 25 mm 1.6 mm. The simulated gain of antenna obtained is -0.135 dB at 910 MHz with 19 MHz bandwidth.

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Compact Slotted Heptagonal UWB Textile-Based SNG Metamaterial for Breast Cancer Detection

2023-01-01 , Qureshi A.W. , Hasliza A Rahim @ Samsuddin , Allan Melvin Andrew , Malek M.F.A. , Al-Bawri S.S.

A compact slotted heptagonal Ultrawideband (UWB) textile-based SNG (Single-Negative) metamaterial unit cell with truncated ground plane for breast cancer detection is presented in this paper. The overall dimensions of 30x30x3.34 mm3, covering a bandwidth of range between 1 and 15 GHz is obtained. MNZ (Mu-Near-Zero) and ENG (Epsilon-Negative) characteristics exhibited by the proposed MTM provides an effective platform for breast cancer detection.

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Smart Gateless System using RFID Technology in Universiti Malaysia Perlis

2021-06-11 , Ainur Fasihah Mohd Fazilah , Muzammil Jusoh , Ammar Zakaria , Thennarasan Sabapathy , Mohd Firdaus Ibrahim , Hasliza A Rahim @ Samsuddin , Muhammad Mokhzaini Azizan , Mohd Zakimi Zakaria , Nashrul Fazli Mohd Nasir , Albreem M.A.M. , R Badlishah Ahmad

This paper describes a smart monitoring gate-less system by using RFID technologies that had been implemented in Universiti Malaysia Perlis. The objective of this system is to ease the security to monitoring the cars-in and cars-out from the main gate manually. The security can check and manage the staff by system management in PC. This smart monitoring gate-less system consists of RFID tag antenna that be attached at sticker's staff, RFID reader and software management application. For the software management application, this project used LabView as a simulation tool for the data acquisition. The data which contains of name, staff number, number plate, car model and color will be stored in cloud-based storage. All the information data can be accessed from any location because the security management can access it through mobile. This project will present how efficient the vehicle control application on campus which enable the security guard to check a car sticker either legal or illegal in a shortest way.

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Dual-Band MIMO Decagonal C-Shaped CSRR Metamaterial Textile Antenna for WLAN and 5G Applications

2023-01-01 , Mashagba H.A. , Hasliza A Rahim @ Samsuddin , Mohd Najib Mohd Yasin , Narongkul S. , Liyana Zahid , Nur Hidayah Ramli

This study proposed an enhanced two-port dual-band textile Multiple-Input Multiple-Output (MIMO) antenna integrated with a metamaterial unit cell of symmetric decagonal C-shaped Complementary Split-Ring Resonator (CSRR) structure in terms of gain. The proposed MIMO antenna achieves an impedance bandwidth of 6.3% and a maximum up to 18.2% for lower and upper bands, respectively, at port 1. Mutual Coupling (MC) of less than -20 dB for both ports is obtained. The proposed antenna offers high realized gain of 5.6 dBi and 8 dBi at 2.45 GHz and 3.5 GHz, respectively, compared to existing dual-band MIMO textile antenna. Good diversity characteristics in respect of Envelope Correlation Coefficient (ECC) less than 0.001, and Diversity Gain (DG) of about 10 dB are achieved.

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