Sharul Kamal Abdul Rahim
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View article: Programming immunogenicity of dengue EDIII vaccine antigens using engineered outer membrane vesicles (OMVs)
Programming immunogenicity of dengue EDIII vaccine antigens using engineered outer membrane vesicles (OMVs) Open
Dengue is a mosquito-borne viral infection and is more prevalent in the world with no therapeutics and suboptimal vaccine (Dengvaxia) performance against all four serotypes of the dengue virus. Hence, there is an urgent requirement for a n…
View article: Antenna performances based on distinctive thickness-dependent of flexible substrates: A comprehensive review
Antenna performances based on distinctive thickness-dependent of flexible substrates: A comprehensive review Open
View article: TAHAP PENGETAHUAN AKIDAH ISLAMIAH ISLAMIAH: KAJIAN TERHADAP PELAJAR DIPLOMA UITM SABAH
TAHAP PENGETAHUAN AKIDAH ISLAMIAH ISLAMIAH: KAJIAN TERHADAP PELAJAR DIPLOMA UITM SABAH Open
Kajian ini membincangkan tahap pengetahuan akidah Islamiah dalam kalangan pelajar diploma UiTM Sabah dengan menumpukan kepentingan asas kepercayaan dan amalan Islam dalam pembentukan sahsiah. Isu utama muncul apabila pelajar yang kurang pe…
View article: CPW-fed Circular Patch Antenna with Rectangular Slot-Loaded DGS for Wideband Application
CPW-fed Circular Patch Antenna with Rectangular Slot-Loaded DGS for Wideband Application Open
In this paper, a wideband circular patch antenna incorporated with a rectangular slot-loaded defective ground structure (DGS) is presented, meant for n77, n78, n79, and C band applications. The circular radiation patch of the proposed ante…
View article: Advanced Perspectives on Metamaterial Integration in Wireless Power Transfer: A Review
Advanced Perspectives on Metamaterial Integration in Wireless Power Transfer: A Review Open
The field of wireless power transfer (WPT) has recently seen much innovation and improvement and, as a result, there is an ever-increasing need for high power transfer efficiency (PTE) of the WPT systems, as well as enhanced transmission d…
View article: Review on Millimeter Wave Propagation Through Sand and Dust Storm—Impact of Humidity
Review on Millimeter Wave Propagation Through Sand and Dust Storm—Impact of Humidity Open
In this paper, sand and dust storm characteristics and attenuation prediction methods were reviewed and summarized comprehensively. The impact of humidity on the attenuation prediction process is focally discussed while highlighting the ne…
View article: Optimizing Wireless Power Transfer Efficiency at 13.56 MHz Using Double Negative Metamaterials
Optimizing Wireless Power Transfer Efficiency at 13.56 MHz Using Double Negative Metamaterials Open
View article: A Review on Multi-Geometrical Antenna Reflector
A Review on Multi-Geometrical Antenna Reflector Open
Parabolic antennas are among the most important devices for long-distance communications because of their significant advantages in terms of directivity, gain, and power handling capabilities. Hat feeds are frequently used as feeders for p…
View article: LoRa Microstrip Patch Antenna: A comprehensive review
LoRa Microstrip Patch Antenna: A comprehensive review Open
This review offers an extensive examination of the evolving landscape of Long Range (LoRa) Microstrip Patch Antennas (MPAs), highlighting their crucial role in optimizing LoRa systems within the Internet of Things (IoT). As the demand for …
View article: A critical review on the development of multi-geometrical stacked wideband dielectric resonator antenna
A critical review on the development of multi-geometrical stacked wideband dielectric resonator antenna Open
Dielectric resonator antennas (DRAs) use dielectric material as a resonator to accomplish high radiation efficiency and avoid severe conductor loss. The dielectric material that behaves as a resonator is plagued by a number of limitations,…
View article: A Low-Profile Patch-Loaded Ring Antenna with Wide Frequency Tuning Capability for Dual-Band Metal-Mountable Tag Design
A Low-Profile Patch-Loaded Ring Antenna with Wide Frequency Tuning Capability for Dual-Band Metal-Mountable Tag Design Open
A low-profile ring antenna (39 mm × 39 mm × 1.38 mm), which is loaded with a circular patch at the central region for frequency tuning purposes, has been proposed for anti-metal applications that operate in the Lower European (LEu) and the…
View article: Machine Learning-Based Optimized 3G/LTE/5G Planar Wideband Antenna With Tri-Bands Filtering Notches
Machine Learning-Based Optimized 3G/LTE/5G Planar Wideband Antenna With Tri-Bands Filtering Notches Open
A multiband microstrip-fed wideband (WB) antenna with filtering notches is described for applications. The proposed antenna comprises three notch bands by etching a modified inverted U-slot, a square ring slot, and an interdigital inducto…
View article: A Low-Profile Patch-Loaded Ring Antenna With Wide Frequency Tuning Capability for Dual-Band Metal-Mountable Tag Design
A Low-Profile Patch-Loaded Ring Antenna With Wide Frequency Tuning Capability for Dual-Band Metal-Mountable Tag Design Open
A low-profile, dual-band tag antenna (39 mm mm mm), which is loaded with a circular patch at the central region for frequency tuning purposes, has been proposed for on-metal applications that operate in the Lower European (LEu) and the N…
View article: Machine Learning-Optimized Wearable Antenna for LoRa Localization
Machine Learning-Optimized Wearable Antenna for LoRa Localization Open
This paper presents the design and implementation of a compact, wearable, printed monopole
\nantenna for Long-Range (LoRa) location tracking applications, covering the 915 MHz and 923 MHz LoRa
\nbands. Fabricated on a Rogers Duroid RO3003™…
View article: Machine Learning-Optimized Compact Frequency Reconfigurable Antenna With RSSI Enhancement for Long-Range Applications
Machine Learning-Optimized Compact Frequency Reconfigurable Antenna With RSSI Enhancement for Long-Range Applications Open
This study presents an innovative and compact monopole antenna with dual-band frequency reconfigurability for LoRa applications. It operates within the 915 MHz and 868 MHz frequencies, aligning with the designated bands for use in America,…
View article: Compact Low-Profile Multiple-Input Multiple-Output (Mimo) Antenna for Portable Devices in Next-Generation 5g Wireless Networks
Compact Low-Profile Multiple-Input Multiple-Output (Mimo) Antenna for Portable Devices in Next-Generation 5g Wireless Networks Open
View article: H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications
H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications Open
View article: Sensor-based microwave brain imaging system (SMBIS): An experimental six-layered tissue based human head phantom model for brain tumor diagnosis using electromagnetic signals
Sensor-based microwave brain imaging system (SMBIS): An experimental six-layered tissue based human head phantom model for brain tumor diagnosis using electromagnetic signals Open
The paper presents the preparation and measurement of six-layered human head phantoms for the sensor-based microwave brain imaging system (SMBIS) for the diagnosis of tumors in the head. The head phantom has been constructed based upon thr…
View article: Triple-Band Reconfigurable Monopole Antenna for Long-Range IoT Applications
Triple-Band Reconfigurable Monopole Antenna for Long-Range IoT Applications Open
In this study, a novel reconfigurable triple-band monopole antenna for LoRa IoT applications is fabricated on an FR-4 substrate. The proposed antenna is designed to function at three distinct LoRa frequency bands: 433 MHz, 868 MHz, and 915…
View article: Compact 4 × 4 Butler matrix design-based switch beamforming antenna array for 5G applications
Compact 4 × 4 Butler matrix design-based switch beamforming antenna array for 5G applications Open
This paper, presents a 4×4 BM based on four direction switch BM antenna array. The proposed design operated at 3.5 GHz. The use of multi-beam antennas or switched-beam antenna arrays (SAAs) promised users of high-gain and large coverage ar…
View article: A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications
A Compact Mu-Near-Zero Metamaterial Integrated Wideband High-Gain MIMO Antenna for 5G New Radio Applications Open
This article demonstrates a compact wideband four-port multiple-input-multiple-output (MIMO) antenna system integrated with a wideband metamaterial (MM) to reach high gain for sub-6 GHz new radio (NR) 5G communication. The four antennas of…
View article: A Lightweight Deep Learning Based Microwave Brain Image Network Model for Brain Tumor Classification Using Reconstructed Microwave Brain (RMB) Images
A Lightweight Deep Learning Based Microwave Brain Image Network Model for Brain Tumor Classification Using Reconstructed Microwave Brain (RMB) Images Open
Computerized brain tumor classification from the reconstructed microwave brain (RMB) images is important for the examination and observation of the development of brain disease. In this paper, an eight-layered lightweight classifier model …
View article: Multiport Single Element Mimo Antenna Systems: A Review
Multiport Single Element Mimo Antenna Systems: A Review Open
In response to the increasing demand for voice, data, and multimedia applications, the next generation of wireless communication systems is projected to provide faster data rates and better service quality to customers. Techniques such as …
View article: Triple-Band Square Split-Ring Resonator Metamaterial Absorber Design with High Effective Medium Ratio for 5G Sub-6 GHz Applications
Triple-Band Square Split-Ring Resonator Metamaterial Absorber Design with High Effective Medium Ratio for 5G Sub-6 GHz Applications Open
This article proposes a square split-ring resonator (SSRR) metamaterial absorber (MMA) for sub-6 GHz application. The unit cell of the MMA was designed and fabricated on commercially available low-cost FR-4 substrate material with a dielec…
View article: A Compact Reconfigurable Multi-frequency Patch Antenna for LoRa IoT Applications
A Compact Reconfigurable Multi-frequency Patch Antenna for LoRa IoT Applications Open
In this study, a compact, reconfigurable, and high-efficiency Long Range (LoRa) patch antenna, which is novel, is presented for Internet of Things (IoT) applications.The antenna is designed to operate at the three major frequencies used fo…
View article: Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC)
Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC) Open
In this paper, a coplanar waveguide (CPW)-fed patch antenna is fabricated on a layer of metasurface to increase gain. The antenna is fabrication on Roger substrate with a thickness of 0.25 mm, with the overall dimension of the proposed des…
View article: PET-Based Instant Inkjet-Printed 4 × 4 Butler Matrix Beamforming Network
PET-Based Instant Inkjet-Printed 4 × 4 Butler Matrix Beamforming Network Open
In this paper, a novel planar Butler matrix (BM) utilizing only 3dB3dBhybrid couplers and a crossover are implemented using a low-cost silver-nano inkjet printing technique. Unlike in the conventional design of BM where a phase shifter is…
View article: 3D RT adaptive path sensing Method: RSSI modelling validation at 4.5 GHz, 28 GHz, and 38 GHz
3D RT adaptive path sensing Method: RSSI modelling validation at 4.5 GHz, 28 GHz, and 38 GHz Open
This paper explains a new Adaptive Path Sensing Method (APSM) for indoor radio wave propagation prediction. Measurement campaigns, which cover indoor line-of-sight (LoS), non-line-of-sight (NLoS) and different room scenarios, are conducted…
View article: A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review
A Recent Approach towards Fluidic Microstrip Devices and Gas Sensors: A Review Open
This paper aims to review some of the available tunable devices with emphasis on the techniques employed, fabrications, merits, and demerits of each technique. In the era of fluidic microstrip communication devices, versatility and stabili…
View article: Flexible Patch Antenna Array Operating at Microwaves Based on Thin Composite Material
Flexible Patch Antenna Array Operating at Microwaves Based on Thin Composite Material Open
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