Multi-band reconfigurable antenna for mobile handset applications

Author

Youngje Sung

Author_Institution

Dept. of Electron. Eng., Kyonggi Univ., Suwon, South Korea

Volume

8

Issue

11

fYear

2014

fDate

August 19 2014

Firstpage

864

Lastpage

871

Abstract

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 mm³.

Keywords

loop antennas; mobile handsets; multifrequency antennas; p-i-n diodes; planar inverted-F antennas; GSM900/1800/1900; LTE2300/2500; PIFA mode; PIN diode; UMTS; bandwidth 2250 MHz; bandwidth 920 MHz; impedance bandwidth; loop mode; mobile handset applications; multiband reconfigurable antenna; on/off state; planar inverted-F antenna;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map.2013.0525

Filename

6882316