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Progress In Electromagnetics Research
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MULTIBAND FOLDED LOOP ANTENNA FOR SMART PHONES

By C.-W. Chiu, C.-H. Chang, and Y.-J. Chi

Full Article PDF (1,746 KB)

Abstract:
This paper presents a multiband folded loop antenna for smart phone applications. The proposed antenna with a symmetric loop pattern generates four resonance modes in the design bands. The current distributions of the excited resonance modes are analyzed to confirm the mode characteristic. Using a pair of tuning elements near the feed port, the impedance bandwidth is broadened to cover GSM850/GSM900/DCS/PCS/UMTS bands. This research performed simulation by a high frequency structure simulator (HFSS) to optimally design the antenna, and a practical structure was constructed to test. The current study measured the antenna parameters including reflection coefficient, radiation characteristics, peak gain, and radiation efficiency to validate the proposed antenna.

Citation:
C.-W. Chiu, C.-H. Chang, and Y.-J. Chi, " multiband folded loop antenna for smart phones ," Progress In Electromagnetics Research, Vol. 102, 213-226, 2010.
doi:10.2528/PIER10011601
http://www.jpier.org/PIER/pier.php?paper=10011601

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