Open AccessMulti‐band reconfigurable antenna for mobile handset applications
Author(s) -
Sung Youngje
Publication year - 2014
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0525
Subject(s) - handset , reconfigurable antenna , antenna (radio) , computer science , telecommunications , electronic engineering , electrical engineering , engineering , omnidirectional antenna , antenna efficiency
In this study, a novel reconfigurable antenna using a PIN diode is proposed for multiband (GSM900/1800/1900/UMTS/LTE2300/2500) operation in mobile handsets. By adjusting the on/off state of the PIN diode, the reconfigurable antenna operates in a planar inverted‐F antenna (PIFA) mode as well as a loop mode. The operating bandwidth at a low band is attributed to the PIFA mode. The broad bandwidth at a high band is easily achieved in the PIFA mode as well as the loop mode. It is observed from the measured results that this planar antenna exhibits an impedance bandwidth of ∼8.7% at the 920‐MHz band and ∼48.3% at the 2250‐MHz band. With the reconfigurable technology, the antenna can achieve a compact size of 27 × 10 × 1.6 mm 3 .