A wideband monopole antenna for PCS/IMT-2000/Bluetooth applications

Author

Sim, Dong-Uk ; Moon, Jung-Ick ; Park, Seong-Ook

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea

Volume

3

Issue

1

fYear

2004

Firstpage

45

Lastpage

47

Abstract

A triple-band stubby antenna, fed by a coaxial probe, and a tuning technique are proposed for operating at PCS, IMT-2000, and Bluetooth bands. The proposed antenna, shielded by the antenna cover, consists of two radiating elements. The impedance matching and bandwidth for the proposed antenna are mainly affected by the length of the ground patch at the bottom of a small substrate. By properly choosing the size of the ground patch, the resonant frequencies can be easily adjusted, and a wide impedance bandwidth of 59.7% (|S/sub 11/| < -10 dB), which covers the Korean PCS (1750-1870 MHz), IMT-2000 (1920-2170 MHz), and Bluetooth (2402-2483.5 MHz) can be achieved. An omnidirectional radiation pattern is obtained, and a peak antenna gain of about 3 dBi or more is measured. The electrical characteristics of the proposed antenna make it attractive for use in mobile handset applications.

Keywords

3G mobile communication; Bluetooth; UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; cellular radio; electric impedance; impedance matching; mobile antennas; monopole antennas; multifrequency antennas; 1750 to 1870 MHz; 1920 to 2170 MHz; 2402 to 2483.5 MHz; Bluetooth; IMT-2000; PCS; coaxial probe feed; ground patch; impedance matching; mobile antennas; mobile handset; omnidirectional radiation pattern; peak antenna gain; triple-band antenna; triple-band stubby antenna; tuning technique; wideband antenna; wideband monopole antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2004.827893

Filename

1290936