Abstract
A multi-band rectangular dielectric resonator an-tenna (RDRA) is proposed in this study for WiMAX, Wireless Local Area Network (WLAN) applications. The proposed geometry is based on combination of golden ratio and koch snowflake fractal approach. The proposed DRA geometry has been designed using low-cost alumina dielectric material. The DRA is fed by a trapezoidal a conformal strip feed. The proposed triple-band antenna operates at 2.5/3.8/4.9 GHz. The designed triple-band antenna with extremely low-cost and low-profile is very suitable for multi-band mobile communication systems. The presented dielectric resonator antenna (DRA) is having stable radiation patterns (nearly directional pattern) for each operating band. Additionally, the RDRA achieves an over-all total efficiency of more than 90% at the desired frequency bands. The proposed antenna is suitable for different wireless applications such as WLAN (5.2 GHz), WiMAX (2.6/3.5 GHz).
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