A FREQUENCY RECONFIGURABLE PLANAR INVERTED-F ANTENNA FOR WWAN MOBILE HANDSET APPLICATIONS

作者：Lee S W; Sung Y J^*

来源：Microwave and Optical Technology Letters, 2014, 56(12): 2888-2893.

DOI：10.1002/mop.28728

• reconfigurable antenna
• mobile handset antenna
• planar inverted-F antenna

In this article, a reconfigurable antenna for wireless wide area network (WWAN) mobile handset application is proposed. The proposed antenna consists of a conventional planar inverted-F antenna (PIFA), parasitic line, PIN diode, and bias line. The PIN diode is located between the parasitic line and ground, and its connection is electrically controlled by the on/off state of the PIN diode. The antenna's wide low band is formed by switching the quarter-wavelength resonance mode of a conventional PIFA and covers the GSM850/900 bands. The antenna's high band is formed by the harmonic mode of a conventional PIFA and a new generated loop mode and covers the GSM1800/1900/UMTS bands. A stable and omnidirectional radiation pattern with a reasonable gain is observed over the operating bandwidth.

• 出版日期2014-12