volume | PIER Journals

Abstract

In this paper, a compact wideband planar monopole antenna suitable for slim mobile handsets applications is presented. The proposed antenna operates over LTE700/GSM800/900 (0.742 GHz-1.36 GHz), GPS L1/GSM1800/1900/UMTS/IMT2100/Wi-Fi/LTE2300/2500 (1.475 GHz-2.7 GHz), and WiMAX (3.4 GHz-3.72 GHz) based on reflection coefficient better than -6 dB. It consists of coupling strip, shorted radiating strip, and parasitic meandered lines. The wider impedance bandwidth is achieved by placing the meandered line as parasitic element on the back side of the coupling and shorted radiating elements. With this configuration, the antenna gives extremely wide impedance bandwidth which covers all the required frequency bands of the smart mobile phones. To investigate the proposed antenna, S-parameters, surface current distributions, and radiation performances are studied. To check the robustness of the proposed antenna, investigation is also carried out in the vicinity of the mobile environment. Further, specific absorption rate (SAR) is calculated on the human head and found to be below 0.535 W/kg. The simulated and measured results are found in close agreement.

1. Lee, J. and Y. Sung, "Heptaband inverted-F antenna with independent resonance control for mobile handsets applications," IEEE Antennas and Wireless Propag. Lett., Vol. 13, 1267-1270, 2014.
doi:10.1109/LAWP.2014.2333418 Google Scholar

2. Seko, M. H. and F. S. Correra, "A novel tri-band planar inverted-F antenna for GSM/DCS/PCS operation in mobile," Microwave Optical Technology Lett., Vol. 55, 821-825, 2013.
doi:10.1002/mop.27441 Google Scholar

3. Chien, C.-W. and Y.-J. Chi, "Planar hexa-band inverted-F antenna for portable device applications," IEEE Antennas and Wireless Propag. Lett., Vol. 8, 1099-1102, 2009.
doi:10.1109/LAWP.2009.2033623 Google Scholar

4. Karkkainen, M. K., "Meandered multiband PIFA with coplanar parasitic patches," IEEE Microw. Wireless Compon. Lett., Vol. 15, 630-632, 2005.
doi:10.1109/LMWC.2005.856692 Google Scholar

5. Yoon, H.-S. and S.-O. Park, "A new compact hexaband internal antenna of the planar inverted F-type for mobile handsets," IEEE Antennas and Wireless Propag. Lett., Vol. 6, 336-339, 2007.
doi:10.1109/LAWP.2007.900958 Google Scholar

6. Rowell, C. R. and R. D. Murch, "A capacitively loaded PIFA for compact mobile telephone handsets," IEEE Transactions Antennas Propag., Vol. 45, 837-842, 1997.
doi:10.1109/8.575634 Google Scholar

7. Chien, S. L., F. R. Hsiao, Y. C. Lin, and K. L. Wong, "Planar inverted-F antenna with a hollow shorting cylinder for mobile phone with an embedded camera," Microwave Optical Technology Lett., Vol. 41, 418-419, 2004.
doi:10.1002/mop.20157 Google Scholar

8. Montaser, A. M., "Design of multiband PIFA with low SAR value for all commercial mobile communication bands," International Journal of RF and Microwave Computer-Aided Engg., Vol. 25, No. 3, 194-201, 2015, Doi: 10.1002/mmce.20849.
doi:10.1002/mmce.20849 Google Scholar

9. Seol, K., Y. Jang, and J. Choi, "PIFA with PIL patch having bent feed line for GSM/DCS/UMTS/WiBro applications," Electronics Lett., Vol. 43, 436-437, 2007.
doi:10.1049/el:20072912 Google Scholar

10. Chattha, H. T. and Y. Huang, "Low profile dual-feed planar inverted-F antenna for wireless LAN applications," Microwave Optical Technology Lett., Vol. 53, 1382-1386, 2011.
doi:10.1002/mop.25958 Google Scholar

11. Chang, C.-H. and K.-L. Wong, "Printed λ/8-PIFA for Penta-band WWAN operation in the mobile phone," IEEE Transactions Antennas Propag., Vol. 57, 1373-1381, 2009.
doi:10.1109/TAP.2009.2016722 Google Scholar

12. Wong, K.-L. and C.-H. Huang, "Compact multiband PIFA with a coupling feed for internal mobile phone antenna," Microwave Optical Technology Lett., Vol. 50, 2487-2491, 2008.
doi:10.1002/mop.23727 Google Scholar

13. Wu, C.-H. and K.-L.Wong, "Ultrawideband PIFA with a capacitive feed for penta-band folder-type mobile phone antenna," IEEE Transactions Antennas Propag., Vol. 57, 2461-2464, 2009. Google Scholar

14. Cabedo, A., J. Anguera, C. Picher, M. Ribo, and C. Puente, "Multiband handsets antenna combining a PIFA, slots, and ground plane modes," IEEE Transactions Antennas Propag., Vol. 57, 2526-2533, 2009.
doi:10.1109/TAP.2009.2027039 Google Scholar

15. Chattha, H. T., Y. Huang, M. K. Ishfaq, and S. J. Boyes, "Bandwidth enhancement techniques for planar inverted-F antenna," IET Microwaves, Antennas, and Propag., Vol. 5, 1873-1879, 2011. Google Scholar

16. Chi, Y.-W. and K.-L. Wong, "Compact multiband folded loop chip antenna for small-size mobile phone," IEEE Transactions Antennas Propag., Vol. 56, 3797-3803, 2008.
doi:10.1109/TAP.2008.2007280 Google Scholar

17. Wong, K.-L. and T.-W. Kang, "GSM850/900/1800/1900/UMTS printed monopole antenna for mobile phone application," Microwave Optical Technology Lett., Vol. 50, 3192-3198, 2008.
doi:10.1002/mop.23936 Google Scholar

18. Li, W.-Y. and K.-L. Wong, "Internal wireless wide area network clamshell mobile phone antenna with reduced ground plane effects," Microwave Optical Technology Lett., Vol. 52, 922-930, 2010.
doi:10.1002/mop.25056 Google Scholar

19. Wong, K.-L. and C.-T. Lee, "Wideband surface-mount chip antenna for eight-band LTE/WWAN slim mobile phone application," Microwave Optical Technology Lett., Vol. 52, 2554-2560, 2010.
doi:10.1002/mop.25543 Google Scholar

20. Wong, K.-L., M. -F. Tu, C.-Y. Wu, and W.-Y. Li, "On-board 7-bandWWAN/LTE antenna with small size and compact integration with nearby ground plane in the mobile phone," Microwave Optical Technology Lett., Vol. 52, 2847-2853, 2010.
doi:10.1002/mop.25619 Google Scholar

21. Chen, J.-H., C.-J. Ho, C.-H. Wu, S.-Y. Chen, and P. Hsu, "Dual-band planar monopole antenna for multiband mobile systems," IEEE Antennas and Wireless Propag. Lett., Vol. 7, 769-772, 2008.
doi:10.1109/LAWP.2008.2008110 Google Scholar

22. Zhang, T., R. L. Li, G. P. Jin, G. Wei, and M. M. Tentzeris, "A novel multiband planar antenna for GSM/UMTS/LTE/Zigbee/RFID mobile devices," IEEE Transactions Antennas Propag., Vol. 59, 4209-4214, 2011.
doi:10.1109/TAP.2011.2164201 Google Scholar

23. Chen, C.-C., C.-Y.-D. Sim, and F.-S. Chen, "A novel compact quad-band narrow strip-loaded printed monopole antenna," IEEE Antennas and Wireless Propag. Lett., Vol. 8, 974-976, 2009.
doi:10.1109/LAWP.2009.2030138 Google Scholar

24. Bharti, P. K., G. K. Pandey, H. S. Singh, and M. K. Meshram, "A compact multiband planar monopole antenna for slim mobile handsets applications," Progress In Electromagnetics Research B, Vol. 61, 31-42, 2014.
doi:10.2528/PIERB14062706 Google Scholar

25. Chen, S.-C. and K.-L. Wong, "Wideband monopole antenna coupled with a chip-inductor-loaded shorted strip for LTE/WWAN mobile handset," Microwave Optical Technology Lett., Vol. 53, 1293-1298, 2011.
doi:10.1002/mop.25977 Google Scholar

26. Chen, S.-C. and K. -L. Wong, "Bandwidth enhancement of copled-fed on-board printed PIFA using bypass radiating strip for eight-band LTE/WWAN slim mobile phone," Microwave Optical Technology Lett., Vol. 52, 2059-2065, 2010.
doi:10.1002/mop.25406 Google Scholar

27. Zhao, G.-H., A.-G. Wang, W. Leng, B. Chen, and H. Chen, "Wideband internal antenna with coupled feeding for 4G mobile phone," Microwave Optical Technology Lett., Vol. 55, 513-516, 2013.
doi:10.1002/mop.27341 Google Scholar

28. Ansoft Corporation, Online Available: http://www.ansoft.com, .
doi:10.1002/mop.27341 Google Scholar

29. CST Microwave Studio, Online Available: http://www.cst.com, .
doi:10.1002/mop.27341 Google Scholar

30. Test plan for mobile station over the air performance, CTIA Revision 3.1, Jan. 2011. Google Scholar

Dr. Pradutt Kumar Bharti

Dr. Hari Shankar Singh

Mr. Gaurav Kumar Pandey

Dr. Manoj Kumar Meshram