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Mohamed Nasrun Osman
Preferred name
Mohamed Nasrun Osman
Official Name
Mohamed Nasrun, Osman
Alternative Name
Nasrun Osman, Mohamed
Osman, Mohamad N.
Nasrun Osman, Mohd
Osman, Mohamed N.
Osman, Mohamed
Osman, M. N.
Main Affiliation
Scopus Author ID
57189062688
Researcher ID
HKW-4543-2023
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PublicationDesign of beam steering resonator antenna for 5G using switch-coupling parasitic element(IEEE, 2024-01)
;T. Poobalan ; ; ; ;A. M. IqbalMohammad Kamal Abdul RahimThis paper proposed beam steering MIMO antenna for 5G application at 3.5 GHz of mid-band. The beam steering performance is based on the integration of the driven parasitic element and switches. The RT Duroid 5880 is used as substrate with thickness 1.57mm. The geometry of the center rectangular patch antenna to achieve the desired resonance frequency which 3.5GHz. The integration of the HPNP 4005 PIN Diode with the parasitic element is tested which the antenna manages to steer the direction at -30º, 0ºand +30ºwith gain of 6.4dBi. In the proposed design, a simple biasing circuit is employed to control all the PIN Diodes switches. The proposed MMO antenna could be potential for 5G application.1 13 -
PublicationElectrically tunable Left-Handed textile metamaterial for microwave applications( 2021)
;Kabir Hossain ; ; ;Ping Jack Soh ;Mohd Haizal Jamaluddin ;Samir Salem Al-Bawri ; ;R. Badlishah, Ahmad ; ;Nitin SalujaAn electrically tunable, textile-based metamaterial (MTM) is presented in this work. The proposed MTM unit cell consists of a decagonal-shaped split-ring resonator and a slotted ground plane integrated with RF varactor diodes. The characteristics of the proposed MTM were first studied independently using a single unit cell, prior to different array combinations consisting of 1 × 2, 2 × 1, and 2 × 2 unit cells. Experimental validation was conducted for the fabricated 2 × 2 unit cell array format. The proposed tunable MTM array exhibits tunable left-handed characteristics for both simulation and measurement from 2.71 to 5.51 GHz and provides a tunable transmission coefficient of the MTM. Besides the left-handed properties within the frequency of interest (from 1 to 15 GHz), the proposed MTM also exhibits negative permittivity and permeability from 8.54 to 10.82 GHz and from 10.6 to 13.78 GHz, respectively. The proposed tunable MTM could operate in a dynamic mode using a feedback system for different microwave wearable applications.4 22