Browsing by Author "Rahim, S. K. A."

Now showing 1 - 3 of 3
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    Design of triple band Artificial Magnetic Conductor
    (IEEE, 2012) Dewan, R.; Rahim, S. K. A.; Ausordin, S. F.; Iddi, Hashim U.
    This paper presents a design of Artificial Magnetic Conductor (AMC). The AMC operates in three operating frequencies which are 2.3 GHz, 5.8 GHz and 8.36 GHz with the bandwidth of 5.64 %, 1.73% and 3.58 % respectively. The size of AMC unit cells is relatively smaller compare to previous researches that have been done. Parametric results for the reflection phase diagram are also presented.
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    Improved Design of Tapering and through Element Series Antenna
    (IEEE, 2012) Dewan, R.; Rahim, S. K. A.; Ausordin, S. F.; Iddi, Hashim U.
    In this paper, an array of series fed antenna based on tapering patch width and through element is presented. The antenna has wide impedance bandwidth of 16.18% covering from 5.34 GHz to 6.28 GHz with a gain of 6.53 dBi. The use of through element technique reduces the overall length of array structure by 25.47%. It also has lower side lobe level, and wider impedance bandwidth compared to the past research.
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    X-Polarization Array Antenna with Parallel Feeding for Wimax 3.55 Ghz Application
    (IEEE, 2011) Dewan, R.; Rahim, S. K. A.; Ausordin, S. F.; Iddi, Hashim U.; Abdi. Aziz, M. Z. A.
    An X-Polarization array microstrip patch antenna for WiMAX application is introduced in this paper. The array antenna operates at WiMAX frequency of 3.55 GHz. The substrate used is FR-4 with the thickness of 1.6 mm, relative permittivity of 4.5 and loss tangent of 0.019. The antenna use parallel feeding network to feed all the eight elements with coaxial port. The array has gain of 6 dBi, and directivity 8.754 dBi. The array antenna only requires single input port unlike conventional X-Polarization array antenna that uses multiple input port application. Parametric study of cross angle to antenna performance is studied which have not been discussed in the past research and coupling between the elements in the array is presented.