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AN INTERNAL ANTENNA FOR PCS/IMT-2000/BLUETOOTH TRIPLE-BAND MOBILE PHONE

An internal triple-band antenna fed by a microstrip line is proposed for operating PCS, IMT-2000, and Bluetooth bands. By using the two branchs of meander line, the desired resonant frequencies can be achieved. A broadband characteristic for each band is optimized by tunning the parts of radiating patch and size of each strip line segments. The proposed antenna and substrate are small enough to be built in a practical mobile handset. Details of the proposed technique and experimental results are presented and discussed.