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Radiation efficiency improvement for dual-mode mobile phone using a slot on a ground plane

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4 Author(s)
Lee, S.-J. ; Mobile Commun. Div., Samsung Electron. Co. Ltd., Suwon, South Korea ; Seo, J.-M. ; Park, C.-W. ; Kim, Y.-S.

A dual-band mobile phone antenna with dual feeders is proposed to improve antenna radiation efficiency in the CDMA band of 824-894 MHz and the GSM band of 880-960 MHz. The proposed antenna consists of two planar inverted-F antennas and a common ground plane with a slot. The electric fields are more confined on each radiating element region at each band in this configuration. Measured results show that radiation efficiencies of the proposed antenna are improved by up to 20% compared to those of the antenna without a slot.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 19 )