• DocumentCode
    1347322
  • Title

    Compact Heptaband Reconfigurable Loop Antenna for Mobile Handset

  • Author

    Li, Yue ; Zhang, Zhijun ; Zheng, Jianfeng ; Feng, Zhenghe

  • Author_Institution
    Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
  • Volume
    10
  • fYear
    2011
  • fDate
    7/3/1905 12:00:00 AM
  • Firstpage
    1162
  • Lastpage
    1165
  • Abstract
    In this letter, an internal folded reconfigurable loop antenna for mobile handset applications is designed, built, and tested. Two operating states with different frequencies are obtained by switching the shorting pins of the loop. The bandwidth of the proposed antenna has been increased by adopting a matching bridge. In a compact volume of 60×5×5 mm3, the proposed antenna operates in heptaband, including GSM850, GSM900, GPS, DCS, PCS, UMTS, and WLAN, with the return loss lower than 6 dB. The efficiency and gain with the p-i-n diodes with their bias circuit are also measured and analyzed.
  • Keywords
    loop antennas; mobile handsets; DCS; GPS; GSM850; GSM900; PCS; UMTS; WLAN; bias circuit; compact heptaband reconfigurable loop antenna; internal folded reconfigurable loop antenna; matching bridge; mobile handset application; Antenna measurements; Antenna radiation patterns; Mobile antennas; Mobile handsets; P-i-n diodes; Handset antennas; multiple-band antennas; reconfigurable antennas;
  • fLanguage
    English
  • Journal_Title
    Antennas and Wireless Propagation Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1536-1225
  • Type

    jour

  • DOI
    10.1109/LAWP.2011.2171311
  • Filename
    6042323
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1347322