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    A reconfigurable ultra wide band (UWB) compact tree-design antenna system

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    A reconfigurable ultra wide band (UWB) compact tree-design antenna system.pdf (700.5Kb)
    Date
    2012-03
    Author
    Muzammil, Jusoh
    Mohd Faizal, Jamlos, Dr.
    Muhammad Ramlee, Kamarudin
    Mohd Fareq, Abd. Malek, Dr.
    Muhamad Asmi, Romli
    Zahari, Awang Ahmad
    Mahathir, H. Mat
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    Abstract
    A novel compact tree-design antenna (NCTA) with the ability of reconfigurable ultra-wideband (UWB) of 3.1 GHz to 10.6 GHz to five multi-narrowband applications is proposed. This antenna has a novel radiating element design that consists of seven small circles (7-filter) surrounding a central circle. Moreover, the NCTA incorporates the 7-filter that functioned as filter into the antenna design. The compact 38mm×38mm antenna integrates three PIN diode switches, which are connected to a single National Instrument Data Acquisition (NI-DAQ) Board. The DAQ itself is controlled (ON/OFF state) by a virtual instrument known as "Lab VIEW Interface Software". The activation of specific PIN diode switches in the configuration that is controlled by the DAQ then, in turn, determines the frequency agility. The presented antenna is capable of performing up to five multibands. The operating frequencies are as follows; band 1 (2.72- 11.8 GHz), band 2 (2.4-4 GHz, 5.3-11.6 GHz), band 3 (2.7-6.5 GHz, 7.1-11.6 GHz), band 4 (2.7-4.4 GHz, 5.2-6.5 GHz, 7.1-11.7 GHz) and band 5 (2.6-3.5 GHz, 4.8-7.0 GHz, 7.4 GHz-11.5 GHz). Furthermore, the antenna has a gain of up to 6 dBi which is considered better than that of conventional antenna. The proposed antenna produces a proficient divisive radiation pattern at 4 and 6 GHz. The experimental results exhibit the success of the antenna performance. It is competent as future candidate for cognitive radio and military applications
    URI
    http://www.jpier.org/PIERC/
    http://dspace.unimap.edu.my/123456789/22914
    Collections
    • School of Computer and Communication Engineering (Articles) [280]
    • School of Electrical Systems Engineering (Articles) [114]
    • Mohd Fareq Abd Malek, Associate Professor Dr. [76]
    • Mohd Faizal Jamlos, Associate Professor Ir. Dr. [31]

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