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A compact internal antenna that is composed of a coupled loop with two branch lines is presented. The proposed antenna operates at two wide frequency bands (698 ~ 960 MHz/1710 ~ 2690 MHz) to cover octabands LTE 700/GSM 850/GSM 900/DCS 1800/PCS 1900/WCDMA 2100/LTE 2300/LTE 2500 for the 4G mobile handset. The proposed antenna is designed and fabricated on a support (polyester; εr=3.2) with a limited volume, i.e., 7×11×46 mm3. The design methods and the measured results of the proposed antenna are presented in detail.
Antennas and Wireless Propagation Letters, IEEE (Volume:10 )
Date of Publication: 2011