Vol. 32

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2012-08-09

Frequency Reconfigurable Planar Inverted-F Antenna (PIFA) for Cell-Phone Applications

By Min-Jae Lee, Young-Sik Kim, and Yungje Sung
Progress In Electromagnetics Research C, Vol. 32, 27-41, 2012
doi:10.2528/PIERC12060102

Abstract

In this paper, a frequency reconfigurable antenna for cell-phone applications is presented. The proposed structure is based on a conventional PIFA. In addition, two stubs, each with a varactor diode, are incorporated. In order to to achieve wideband characteristics, the first two resonant frequencies (f1 and f2) of the proposed antenna are controlled independently by the supplied voltages with variation of the capacitances. The equivalent circuit of the varactor diode has been extracted in order to accurately predict the performance of the proposed antenna. In addition, parametric studies regarding the capacitance and antenna length have been conducted. The measurement results show that the proposed antenna has a tunable bandwidth defined by a VSWR < 2.5 of 45.7% (606 MHz ~ 965 MHz) and 47.5% (1343 MHz ~ 2181 MHz) at f1 and f2, respectively. Therefore, f1covers the LTE (698 MHz ~ 798 MHz), CDMA (824 MHz ~ 894 MHz), GSM (880 MHz ~ 960 MHz) bands, and f2 covers the DCS (1710 MHz ~ 1880 MHz), PCS (1850 MHz ~ 1990 MHz), WCDMA (1920 MHZ ~ 2170 MHz) bands. The measured average gains varied from -4.3 dBi to -1.5 dBi at f1 and -6.4 dBi to -2.7 dBi at f2.

Citation


Min-Jae Lee, Young-Sik Kim, and Yungje Sung, "Frequency Reconfigurable Planar Inverted-F Antenna (PIFA) for Cell-Phone Applications," Progress In Electromagnetics Research C, Vol. 32, 27-41, 2012.
doi:10.2528/PIERC12060102
http://jpier.org/PIERC/pier.php?paper=12060102

References


    1. Rowell, C. R. and R. D. Murch, "A capacitively loaded PIFA for compact PCS handsets," Proc. IEEE APS-Int. Symp., Vol. 742, No. 745, Baltimore, MD, Jul. 1996.

    2. Lui, G. K. H. and R. D. Murch, "Compact dual-frequency PIFA design using LC resonators," IEEE Trans. Antennas Propag., Vol. 49, No. 7, 1016-1019, Jul. 2001.
    doi:10.1109/8.933479

    3. Gao, Y., C. C. Chiau, X. Chen, and C. G. Parini, "A modified PIFA with a small ground plane," Proc. IEEE AP-S Int. Symp., 515-518, Washongton DC, NY, Jul. 2005.

    4. Sim, C.-Y.-D., "Dual and triple-band PIFA desigh for WLAN applications," Microwave Opt. Technol. Lett., Vol. 49, No. 9, 2159-2162, Sep. 2007.
    doi:10.1002/mop.22682

    5. Nashaat, D. M., H. A. Elsadek, and H. Ghali, "Single feed compact quad-band PIFA antenna for wireless communication applications," IEEE Tans. Antennas Propag., Vol. 53, No. 8, 2631-2635, Aug. 2005.
    doi:10.1109/TAP.2005.851872

    6. Liu, Z. D., P. S. Hall, and D. Wake, "Dual-frequency planar inverted-F antenna," IEEE Trans. Antennas Propag., Vol. 45, No. 10, 1451-1458, Oct. 1997.

    7. Saidatual, N. A., A. A. H. Azremi, R. B. Ahmad, P. J. Soh, and F. Malek, "Multiband fractal planar inverted F antenna (F-PIFA) or mobile phone application," Progress In Electromagnetics Research B, Vol. 14, 127-148, 2009.
    doi:10.2528/PIERB09030802

    8. Low, J. S. and C.-Y. Ai, "Experimental studies of a slot-loaded triangular folded planar inverted-F antenna," Microwave Opt. Technol. Lett., Vol. 39, No. 5, 404-406, Dec. 2003.
    doi:10.1002/mop.11231

    9. Chen, H. T., K.-L. Wong, and T.-T. Chiou, "PIFA with a meandered and folded patch for the dual-band mobile phone application ," IEEE Trans. Antennas Propag., Vol. 51, No. 9, 2468-2471, Sep. 2003.
    doi:10.1109/TAP.2003.816346

    10. Chan, P. W., H. Wong, and E. K. N. Yung, "Wideband planar inverted-F antenna with meandering shorting strip," Electron. Lett., Vol. 44, No. 6, 395-396, Mar. 2008.
    doi:10.1049/el:20083688

    11. Roscoe, D. J., L. Shafai, A. Ittipiboon, M. Cuhaci, and R. Douville, "Tunable dipole antennas," Proc. IEEE AP-S Int. Symp., 672-675, Ann Arbor, MI, Jul. 1993.

    12. Ramadan, A. H., K. Y. Kabalan, A. El-Hajj, S. Khoury, and M. Al-Husseini, "A reconfigurable u-koch microstrip antenna for wireless applications," Progress In Electromagnetics Research, Vol. 93, 355-367, 2009.
    doi:10.2528/PIER09050605

    13. Feldner, L. M., C. T. Rodenbeck, C. G. Christdoulou, and N. Kinzie, "Electrically small frequency-agile PIFA-as-a package for portable wireless devices," IEEE Trans. Antennas Propag., Vol. 55, No. 11, 3310-3319, Nov. 2007.
    doi:10.1109/TAP.2007.908815

    14. Li, Y., Z. Zhang, W. Chen, Z. Feng, and M. F. Iskander, "A quadband antenna with reconfigurable feedings," IEEE Antenna Wireless Propag. Lett., Vol. 8, 1069-1071, 2009.
    doi:10.1109/LAWP.2009.2031415

    15. Lee, K.-M., Y.-J. Sung, J. W. Baik, and Y. S. Kim, "A tunable triangular microstrip patch antenna for multiband applications," Microwave Opt. Technol. Lett., Vol. 51, No. 7, 1788-1790, Jul. 2009.
    doi:10.1002/mop.24428

    16. Wu, J., C. J. Panagamuwa, P. McEvoy, J. C. Vardaxoglou, and O. A. Saraereh, "Switching a dual band PIFA to operate in four bands," Proc. IEEE AP-S Int. Symp., 2675-2678, Albuquerque, NM, Jul. 2006.

    17. Shynu, S. V., G. Augustin, C. K. Aanandan, P. Mohanan, and K. Vasudevan, "Design of compact reconfigurable dual frequency microstrip antennas using varactor diodes," Progress In Electromagnetics Research, Vol. 60, 197-205, 197.

    18. Behdad, N. and K. Sarabandi, "A varactor-tuned dual-band slot antenna," IEEE Trans. Antennas Propag., Vol. 54, No. 2, 401-408, Feb. 2006.
    doi:10.1109/TAP.2005.863373

    19. Behdad, N. and K. Sarabandi, "Dual-band reconfigurable antenna with a very wide tunability range," IEEE Trans. Antennas Propag., Vol. 54, No. 2, 409-416, Feb. 2006.
    doi:10.1109/TAP.2005.863412

    20. Yang, S.-L. S., A. A. Kishk, and K. F. Lee, "Frequency reconfigurable u-slot microstrip patch antenna," IEEE Antenna Wireless Propag. Lett., Vol. 7, 127-129, 2008.
    doi:10.1109/LAWP.2008.921330

    21. White, C. R. and G. M. Rebeiz, "A shallow varactor-tuned capacity-backed slot antenna with a 1:9 : 1 tunning range," IEEE Trans. Antennas Propag., Vol. 58, No. 3, 633-639, Mar. 2010.
    doi:10.1109/TAP.2009.2039311

    22. Liang, Liang and H. Y. D. Yang, "Varactor loaded tunable printed PIFA," Progress In Electromagnetics Research B, Vol. 15, 113-131, 2009.
    doi:10.2528/PIERB09041108

    23. Nguyen, V.-A., R.-A. Bhatti, and S.-O. Park, "A simple PIFA-based tunable internal antenna for personal communication handsets," IEEE Antenna Wireless Propag. Lett., Vol. 7, 130-133, 2008.
    doi:10.1109/LAWP.2008.921332

    24. Lim, J.-H., G.-T. Back, Y.-I. Ko, C.-W. Song, and T. Y. Yun, "A reconfigurable PIFA using a switchable PIN-diode and fine tuning varactor for USPCS/WCDMA/m-Wimax/WLAN," IEEE Trans. Antennas Propag., , Vol. 58, No. 7, 2404-1411, Jul. 2010.

    25. Zhou, Z. and K. L. Melde, "Frequency agility of broadband antennas integrated with a reconfigurable RF impedance tuner," IEEE Antenna Wireless Propag. Lett., Vol. 6, 56-59, 2007.
    doi:10.1109/LAWP.2007.891955

    26. Melde, K. L., H.-J. Park, H.-H. Yeh, B. Fankem, Z. Zhou, and W. R. Eisenstadt, "Software defined match control circuit integrated with a planar inverted F antenna," IEEE Trans. Antennas Propag., Vol. 58, No. 12, 3884-3890, Dec. 2010.
    doi:10.1109/TAP.2010.2078442

    27. Peroulis, D., K. Sarabandi, and L. P. B. Katehi, "Design of econfigurable slot antennas," IEEE Trans. Antennas Propag., Vol. 53, No. 2, 645-654, Feb. 2005.
    doi:10.1109/TAP.2004.841339

    28. Wong, K.-L., W.-Y. Chen, and T.-W. Kang, "On-board printed coupled-fed loop antenna in close proximity to the surroung ground plane for penta-bandWWAN mobile phone," IEEE Trans. Antennas Propag., Vol. 59, No. 3, 751-757, Mar. 2011.
    doi:10.1109/TAP.2010.2103020

    29. Cho, J., C. W. Jung, and K. Kim, "Frequency-reconfigurable two-port antenna for mobile phone operating over multiple service bands," Electron. Lett., Vol. 45, No. 20, 1099-1011, Sep. 2009.
    doi:10.1049/el.2009.1104

    30. Boyle, K. R. and P. G. Steeneken, "A five-band reconfigurable PIFA for mobile phones," IEEE Trans. Antennas Propag., Vol. 55, No. 11, 3300-3309, Nov. 2007.
    doi:10.1109/TAP.2007.908822