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http://dx.doi.org/10.5515/KJKIEES.2012.23.5.570

A Reconfigurable Antenna for Quad-Band Mobile Handset Application  

Park, Young-Keun (Department of Electronic Engineering, Kyonggi University)
Sung, Young-Je (Department of Electronic Engineering, Kyonggi University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.5, 2012 , pp. 570-582 More about this Journal
Abstract
In the communication, a reconfigurable antenna using two PIN diodes is presented for quad-band(GSM900/GSM1800/GSM1900/UMTS) mobile handset applications. The proposed antenna has a size $45{\times}11{\times}6mm^3$. By independently adjusting the on/off states of two PIN diodes located on the radiating element, the proposed structure can be operated in the PIFA and loop mode, respectively. The PIN diodes are replaced by conducting tape in order to verify the concept. In regards to the fabricated reconfigurable antenna, when operating in the PIFA mode, the measured results show that the 7 dB bandwidth is 8.62 %. which covers the GSM900(880~960 MHz) band. When operating in the loop mode, the measured results show that the 7 dB bandwidth is 26.36 %, which covers the GSM1800(1,710~1,880 MHz), GSM1900(1,850~1,990 MHz), and UMTS(1,920~2,170 MHz) bands, respectively.
Keywords
PIFA; Loop Antenna; Reconfigurable Antenna;
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