Multiband LTE-A/WWAN Antenna for a Tablet


In this paper, an internal multiband antenna is proposed for LTE-A/WWAN wireless applications in tablet computer. The proposed antenna is configured to have two branch radiators. These two branch radiators are a U-shaped driven monopole and a nonuniform wrapped inverted U-shaped monopole. The impedance bandwidths across dual operating bands are 89.7 MHz and 4185 MHz at the LTE-A/WWAN bands. Various techniques, such as branching and parasitic element are used to enhance the antenna’s bandwidth, the matching, and the size of the proposed antenna. The antenna is presented on an area of 50 × 15 mm2. Experimental results of this antenna show nearly omni-directional coverage and stable gain variation across the LTE-A/WWAN bands.

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Elshennawy, W. , Hashish, E. and Attiya, A. (2015) Multiband LTE-A/WWAN Antenna for a Tablet. Open Journal of Antennas and Propagation, 3, 19-26. doi: 10.4236/ojapr.2015.33003.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Remy, J.-G. and Letamendia, C. (2014) LTE Standards. John Wiley & Sons Inc., Hoboken, 24-25.
[2] Lu, J.-H., Wang, Y.-S. and Tsai, F.-C. (2014) Planar Compact Tablet Monopole Antenna for LTE/WWAN System. International Symposium on Antennas and Propagation, Kaohsiung, 2-5 December 2014, 45-46.
[3] Chang, S.-H. and Liao, W.-J. (2012) A Broadband LTE/WWAN Antenna Design for Tablet PC. IEEE Transactions on Antennas and Propagation, 60, 4354-4359.
[4] Chen, W.-S. and Jhang, W.-C. (2013) A Planar WWAN/LTE Antenna for Portable Devices. Antennas and Wireless Propagation Letters, 12, 19-22.
[5] Lu, J.-H. and Tsai, F.-C. (2013) Planar Internal LTE/WWAN Monopole Antenna for Tablet Computer Application. IEEE Transactions on Antennas and Propagation, 61, 4358-4363.
[6] Waterhouse, R. (2007) Printed Antennas for Wireless Communications. John Wiley & Sons, Hoboken, 195-224.
[7] Cabedo, A., Anguera, J., Picher, C., Ribo, M. and Puente, C. (2009) Multiband Handset Antenna Combining a PIFA, Slots, and Ground Plane Modes. IEEE Transactions on Antennas and Propagation, 57, 2526-2533.
[8] Chen, Z., Ban, Y.-L., Chen, J.-H., Li, J.L.-W. and Wu, Y.-J. (2012) Bandwidth Enhancement of LTE/WWAN Printed Mobile Phone Antenna Using Slotted Ground Structure. Progress in Electromagnetics Research, 129, 469-483.
[9] Ilvonen, J., Valkonen, R., Holopainen, J. and Viikari, V. (2014) Design Strategy for 4G Handset Antennas and a Multiband Hybrid Antenna. IEEE Transactions on Antennas and Propagation, 62, 1918-1927.
[10] Zhu, X. and Sun, Y. (2013) A New Coupled-Loop Antenna for Eight-Band LTE/WWAN Operation in Ultra-Thin Laptop Computer. Progress in Electromagnetics Research C, 42, 229-238.
[11] Ku, C.-H., Liu, H.-W. and Ding, Y.-X. (2012) Design of Planar Coupled-Fed Monopole Antenna for Eight-Band LTE/ WWAN Mobile Handset Application. Progress in Electromagnetics Research C, 33, 185-198.
[12] Rouissi, I., Trad, I.B., Floch, J.-M., Sheikh, M. and Rmili, H. (2013) Design of Miniature Multiband Fractal CPW-Fed Antenna for Telecommunication Applications. Proceedings of the Progress in Electromagnetic Research Symposium, Stockholm, 12-15 August 2013, 544-547.
[13] Luo, Q., Pereira, J.R. and Salgado, H. (2014) Chapter 3: Low Cost Compact Multiband Printed Monopole Antennas and Arrays for Wireless Communications. In: Huitema, L., Ed., Progress in Compact Antennas, InTech Publisher, Rijeka, 57-84.
[14] Liao, W.-J., Chang, S.-H. and Li, L.-K. (2010) A Compact Planar Multiband Antenna for Integrated Mobile Devices. Progress in Electromagnetics Research, 109, 1-16.
[15] Sun, X.L., Zhang, J., Cheung, S.W. and Yuk, T.I. (2012) A Triple-Band Monopole Antenna for WLAN and WiMAX Applications. Proceedings of the 2012 IEEE Antennas and Propagation Society International Symposium (APSURSI), Chicago, 8-14 July 2012, 1-2.
[16] Cai, J., Zhao, X., Liu, C.-J. and Yan, L. (2012) A Planar Compact Triple-Band Monopole Antenna for WLAN/WiMAX Applications. Progress in Electromagnetics Research Letters, 29, 15-23.
[17] Waterhouse, R. (2007) Printed Antennas for Wireless Communications. John Wiley & Sons, Hoboken, 257-279.

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