Vol. 32

Front:[PDF file] Back:[PDF file]
Latest Volume
All Volumes
All Issues
2012-08-07

Impedance Bandwidth Improvement of Built in Antenna by Novel Feeding Structure at Practical Mobile Handset

By Sung Min Kim, Cheol Yong Yang, and Woon Geun Yang
Progress In Electromagnetics Research C, Vol. 32, 1-9, 2012
doi:10.2528/PIERC12070402

Abstract

In this paper, we propose a wideband internal Planar Inverted-F Antenna (PIFA) by novel feeding structure at practical mobile handset. The proposed antenna by novel feeding structure shows 33.49% wideband impedance bandwidth, compared to 16.92% impedance bandwidth of normal feeding structure of PIFA. We explain novel feeding structure antenna by using equivalent circuit. The normal feeding structure of conventional PIFA has the inductive reactance structurally. To reduce its inductive reactance, a shunt inductive reactance using a novel feeding structure is added to normal feeding structure of conventional PIFA, structurally. So, reactance of PIFA is decreased and impedance bandwidth of PIFA is increased. The size of proposed antenna is 29.2 × 8.2 × 8.3 mm3. As well as, the implemented antenna has a good radiation pattern and high antenna gains despite very small volume.

Citation


Sung Min Kim, Cheol Yong Yang, and Woon Geun Yang, "Impedance Bandwidth Improvement of Built in Antenna by Novel Feeding Structure at Practical Mobile Handset," Progress In Electromagnetics Research C, Vol. 32, 1-9, 2012.
doi:10.2528/PIERC12070402
http://jpier.org/PIERC/pier.php?paper=12070402

References


    1. Rhyu, H. P., J. H. Jo, F. J. Harackiewicz, and B. J. Lee, "Multiband internal antenna using two layer shorted patches for mobile handsets," Microw. Opt. Technol. Lett., Vol. 49, No. 1, 176-179, Jan. 2007.
    doi:10.1002/mop.22077

    2. Seol, K., Y. Jang, and J. Choi, "PIFA with PIL patch having bent feed line for GSM/DCS/PCS/UMTS/WiBro applications," Electron. Lett., Vol. 43, No. 8, Apr. 2007.
    doi:10.1049/el:20072912

    3. Bhatti, R. A. and S. O. Park, "Hepta-band internal antenna for personal communication handsets," IEEE Trans. Antennas Propagat., Vol. 55, No. 12, 3398-3303, Dec. 2007.
    doi:10.1109/TAP.2007.910351

    4. Bhatti, R. A., Y. T. Im, and S. O. Park, "Compact PIFA for mobile terminals supporting multiple cellular and non-cellular standards," IEEE Trans. Antennas Propagat., Vol. 57, No. 9, 2534-2540, Sep. 2009.
    doi:10.1109/TAP.2009.2027086

    5. Lin, C. I. and K. L. Wong, "Internal hybrid antenna for multiband operation in the mobile phone," Microw. Opt. Technol. Lett., Vol. 50, No. 1, 38-42, Jan. 2008.
    doi:10.1002/mop.22980

    6. Wu, C. H. and K. L. Wong, "Hexa-band internal printed slot antenna for mobile phone application," Microw. Opt. Technol. Lett., Vol. 50, No. 1, 35-38, Jan. 2008.
    doi:10.1002/mop.22981

    7. Yoon, K. S., S. B. Park, S. M. Kim, and W. G. Yang, "Penta-band internal antenna for mobile handset applications using parasitic element," Microw. Opt. Technol. Lett., Vol. 50, No. 12, 3045-3048, Dec. 2008.
    doi:10.1002/mop.23884

    8. Wu, C. H. and K. L. Wong, "Hexa-band internal printed slot antenna for mobile phone application," Microw. Opt. Technol. Lett., Vol. 50, No. 1, 35-38, Jan. 2008.
    doi:10.1002/mop.22981

    9. Du, Z., K. Gong, and H. S. Fu, "A novel compact wide-band planar antenna for mobile handsets," IEEE Trans. Antennas Propagat., Vol. 54, No. 2, 613-619, Feb. 2005.
    doi:10.1109/TAP.2005.863088

    10. Kim, S. M., K. S. Yoon, S. B. Park, W. G. Yang, N. K. Kim, and J. H. Lee, "Multi-band internal monopole antenna for mobile station," Microw. Opt. Technol. Lett., Vol. 50, No. 1, 241-244, Jan. 2008.
    doi:10.1002/mop.23024

    11. Lin, S. Y., "Multiband folded planar monopole antenna for mobile handset," IEEE Trans. Antennas Propagat., Vol. 52, No. 7, 1790-1794, Jul. 2004.
    doi:10.1109/TAP.2004.831315

    12. Liu, Y. T., "Wideband stubby monopole antenna for mobile phone," Electron. Lett., Vol. 42, No. 7, 385-387, Mar. 2006.
    doi:10.1049/el:20060123

    13. Kuo, J. S. and C. Y. Huang, "Triple-frequency planar monopole antenna for side-feed communication device on GSM/DCS/PCS operation," Electron. Lett., Vol. 42, No. 5, 268-270, Mar. 2006.
    doi:10.1049/el:20064236

    14. Chiu, C. Y., P. L. Teng, and K. L. Wong, "Shorted, folded planar monopole antenna for dual-band mobile phone," Electron. Lett., Vol. 39, No. 8, 268-270, Sept. 2003.
    doi:10.1049/el:20030867

    15. Kim, B. N., S. O. Park, Y. S. Yoon, J. K. Oh, K. J. Lee, and G. Y. Koo, "Hexaband planar inverted-F antenna with novel feed structure for wireless terminals," IEEE Antennas and Wireless Propag. Lett., Vol. 6, 66-69, 2007.
    doi:10.1109/LAWP.2007.893066

    16. , , , SEMCAD, Schmid & Partener Engineering AG (SPEAG) [Online], Available: http://www.semcad.com.