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PIFA with a meandered and folded patch for the dual-band mobile phone application

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3 Author(s)
Hong-Twu Chen ; Dept. of Electr. Eng., Chinese Mil. Acad., Feng-Shan, Taiwan ; Kin-Lu Wong ; Tzung-Wern Chiou

In this communication, a novel design of the planar inverted-F antenna (PIFA) is proposed for the dual-band mobile telephone application. To reduce the antenna size, the radiating patch is meandered and folded. The studies begin with a folded-patch PIFA that has two tunable resonant modes. Next, by loading three slits on the patch, the surface current path is meandered and the antenna length is reduced significantly. The IE3D simulation software is employed for optimizing the design parameters, and the simulation results in general agree with the measured data. Results also show that, the excitation of the 900 and 1800 MHz resonant modes can be achieved for the proposed antenna with a small volume of 24×10×7.2 mm3. Radiation patterns for both resonances are measured and shown. The maximum antenna gain is estimated to be 2.5 dBi for both 900/1800 band operations.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:51 ,  Issue: 9 )