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PIER PIER B PIER C PIER M PIER Letters
2013-06-26
Fractal Koch Multiband Textile Antenna Performance with Bending, Wet Conditions and on the Human Body
By
Mohd Ezwan Bin Jalil,

    Mr. Mohd Ezwan Bin Jalil

    Radio Communication Engineering Department, Faculty of Electrical Engineering

    University Technology Malaysia

    Malaysia

    Homepage

Mohamad Kamal Abd Rahim,

    Prof. Mohamad Kamal Abd Rahim

    Radio Communication Engineering Department (RaCED), Faculty of E

    Universiti Teknologi Malaysia (UTM)

    Malaysia

    Homepage

Noor Asmawati Binti Samsuri,

    Dr. Noor Asmawati Binti Samsuri

    Communication Engineering Department

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Noor Asniza Murad,

    Dr. Noor Asniza Murad

    Radio Communication Engineering Department (RaCED)

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Huda Abdul Majid,

    Mr. Huda Abdul Majid

    Radio Communication Department, Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Kamilia Kamardin,

    Dr. Kamilia Kamardin

    Faculty of Electrical Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Muhamad Azfar Abdullah

    Dr. Muhamad Azfar Abdullah

    Department of Radio Communication Engineering

    Universiti Teknologi Malaysia

    Malaysia

    Homepage

Progress In Electromagnetics Research, Vol. 140, 633-652, 2013
doi:10.2528/PIER13041212
Abstract
A multiband Fractal Koch dipole textile antenna is proposed for wearable applications. The antenna is designed to operate at 0.9 GHz, 2.45 GHz and 5.8 GHz. Denim materials as the substrate are selected aiming to obtain robustness, flexible and lightweight textile antenna. The antenna model is designed, simulated, optimized and analyzed using Microwave Studio CST software. Two types of multiband antenna prototypes are fabricated and evaluated with different conducting elements (Shield It fabric and copper foil tape). Antenna performance is observed in term of return loss, bandwidth, radiation pattern and realized gain. Three different comprehensive analyses are taking into considerations which are measurement antenna with different bending sizes, on-body measurement and under wet condition. The antenna performances are evaluated based on resonant frequency (fo) and bandwidth (BW). The antennas performance with bending on the human body (arm & forearm) is compared and investigated. A suitable placement on the body has been discovered between chest and backside of human body. The antennas have also been tested under wet conditions to ensure the stable characteristic under the influence of water.
Citation
Mohd Ezwan Bin Jalil, Mohamad Kamal Abd Rahim, Noor Asmawati Binti Samsuri, Noor Asniza Murad, Huda Abdul Majid, Kamilia Kamardin, and Muhamad Azfar Abdullah, "Fractal Koch Multiband Textile Antenna Performance with Bending, Wet Conditions and on the Human Body," Progress In Electromagnetics Research, Vol. 140, 633-652, 2013.
doi:10.2528/PIER13041212
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