1. Bhuiyan, R. H. and M. Ali, "A double meander PIFA with a parasitic metal box for wideband 4G mobile phones," 2011 IEEE International Symposium on Antennas and Propagation (APSURSI), 1914-1917, Jul. 2011.
2. Chen, J. H., Y. L. Ban, H. M. Yuan, and Y. J. Wu, "Printed coupled-fed PIFA for seven-band GSM/UMTS/LTE/WWAN mobile phone," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 2-3, 390-401, 2012.
doi:10.1163/156939312800030929
3. Yang, C. W., Y. B. Jung, and C. W. Jung, "Octaband internal antenna for 4G mobile handset," IEEE Antennas Wireless Propag. Lett., Vol. 10, 817-819, 2011.
doi:10.1109/LAWP.2011.2164049
4. Hussaini, A. S., R. A. Abd-Alhameed, C. H. See, H. I. Hraga, M. S. Bin-Melha, P. S. Excell, and J. Rodriguez, "A dual-band frequency tunable planer inverted F antenna," Proc. Sth Eur. Conf. Antennas Propagation (EUCAP), 223-227, Apr. 2011.
5. Li, Q. D., Q. Y. Feng, and J. Yan, "Design and analysis of ferrite loaded improved slot PIFA antenna," Proc. 7th Int. Conf. Wireless and Opt. Communication Networks, 1-3, Sep. 2010.
6. Selvanayagam, M. and G. V. Eleftheriades, "A compact printed antenna with an embedded double-tuned metamaterial matching network," IEEE Trans. Antennas Propag., Vol. 58, 2354-2361, Jul. 2010.
7. Wong, K. L. and S. C. Chen, "Printed single-strip monopole using a chip inductor for penta-band WWAN operation in the mobile phone," IEEE Trans. Antennas Propag., Vol. 58, Jan. 2010.
8. Vainikainen, P., J. Ollikainen, O. Kivekas, and I. Kelander, "Resonator-based analysis of the combination of mobile handset antenna and chassis," IEEE Trans. Antennas Propag., Vol. 50, 1433-1444, Oct. 2002.
9. Jeong, Y. S., S. H. Lee, J. H. Yoon, W. Y. Choi, and Y. J. Yoon, "Internal mobile antenna for LTE/GSM850/GSM900/PCS1900/WiMAX/WLAN, triple service bands," Proc. IEEE RWS, 559-562, 2010.
10. Chen, Z., Y. L. Ban, J. H. Chen, J. L. W. Li, and Y. J. Wu, "Bandwidth enhancement of LTE/WWAN printed mobile phone antenna using slotted ground structure," Progress In Electromagnetics Research, Vol. 129, 469-483, 2012.
11. Chi, C. W. and C. H. Chang, "Multiband folded loop antenna for smart phones," Progress In Electromagnetics Research, Vol. 117, 425-434, 2011.
12. Lin, C. I. and K. L. Wong, "Internal meandered loop antenna for multiband mobile phone with the user's hand," IEEE Trans. Antennas Propag., Vol. 58, 3572-3575, Jun. 2007.
13. Lin, W. C., M. Ghavami, and W. C. Chung, "Triple-frequency meandered monopole antenna with shorted parasitic strips for wireless application," IET Microw. Antennas Propag., Vol. 3, 1110-1117, Oct. 2009.