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SLOTTED PIFA WITH EDGE FEED FOR WIRELESS APPLICATIONS

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Author(s): T. Anita Jones Mary | T. Joyce Selva Hephzibah | C.S.Ravichandran

Journal: International Journal of Advances in Engineering and Technology
ISSN 2231-1963

Volume: 3;
Issue: 1;
Start page: 101;
Date: 2012;
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Keywords: Handset antenna | Planar Inverted F- Antenna(PIFA) | Slot | Bandwidth | Patch

ABSTRACT
In order to overcome the shortcoming of narrow bandwidth of conventional PIFA, a novel bandwidth enhancement approach is proposed in this paper. A handset antenna technique that combines a parallel excitation of PIFA and slot radiators is presented. To improve the bandwidth of handset antennas in both low and high bands, slots can be introduced into the radiating patch of different shapes such as rectangular and H-shape. Comparison between the PIFA with U-slot on the radiating patch of these shapes can provide that which shape is suitable for enhanced antenna performance. The presented antenna can cover handheld satellite phones, WLAN, Bluetooth and Wimax frequency bands. From the simulation results obtained using FEKO, it is observed that the relative bandwidth of PIFA with U-slot on rectangular patch is 10.59 times and on H-shape patch is 24.3 times more than the conventional PIFA.
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Tangokurs Rapperswil-Jona