Muhammad Ramlee Kamarudin

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Current indoor location determination systems require an offline training phase in order to build a radio map that contains a list of radio fingerprints at known locations. The process of building this radio map is usually a time-consuming and requires an intensive work where the accuracy of these systems depends on various factors such as the number of(More)
A wideband and compact circularly polarized (CP) C-shaped dielectric resonator antenna (DRA) is presented and investigated. The proposed C-shaped DR is excited by a simple stripe line connected to a coplanar waveguide (CPW) feeding line. The C-shaped DRA is circularly polarized with 19% axial ratio (AR) bandwidth. It is found that the CP bandwidth can be(More)
The 790-862 MHz frequency band is allocated for IMT-Advanced system on a co-primary basis operation alongside existing Digital Video BroadcastingTerrestrial (DVB-T), At WRC-07. As a result of frequency spectrum scarcity and emerging various wireless applications, coexistence and sharing between wireless systems become a recently considerable issue.(More)
As a result of frequency spectrum scarcity and emerging various wireless applications, coexistence and sharing between wireless systems become a recently significant issue. At WRC-07, 790–862 MHz is allocated for IMT-Advanced systems on a co-primary basis in company with existing digital video broadcasting- terrestrial (DVB-T). Therefore, coexistence(More)
This article presents a planar array of rectangular Dielectric Resonator Antenna operating for 28 GHz applications. The proposed antenna is formed through two stages of designs which are a single element and planar array. It is made up from a ceramic material with a dielectric constant of 10 and mounted on RT/Duroid 5880 with a relative permittivity of 2.2(More)
An L-shaped dual-band multiple-input multiple-output (MIMO) rectangular dielectric resonator antenna (RDRA) for long term evolution (LTE) applications is proposed. The presented antenna can transmit and receive information independently using fundamental TE111 and higher order TE121 modes of the DRA. TE111 degenerate mode covers LTE band 2 (1.85-1.99 GHz),(More)