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J Electromagn Eng Sci > Volume 15(4); 2015 > Article
Journal of Electromagnetic Engineering and Science 2015;15(4):239-244.
DOI: https://doi.org/10.5515/JKIEES.2015.15.4.239   
A Simple Planar Heptaband Antenna with a Coupling Feed for 4G Mobile Applications
Youngtaek Hong, Jinpil Tak, Jaehoon Choi
Department of Electronics and Computer Engineering, Hanyang University
Abstract
A simple planar heptaband antenna with a coupling feed for 4G mobile applications is proposed. This antenna consists of a folded monopole and a feed strip line on the top plane and an L-shaped line with a coupling plate on the bottom plane. The antenna provides a wide bandwidth to cover the LTE/GSM/UMTS heptaband operation. The measured 6-dB return loss bandwidth is 152 MHz (820-972 MHz) in the lowfrequency band and 1,150 MHz (1,600-2,750 MHz) in the high-frequency band. The overall dimensions of the proposed antenna are $60mm{times}105mm{times}1.2mm$.
Key words: Long-Term Evolution, Multiband Antenna, Planar Antenna, Wideband Antenna

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