A compact folded loop antenna for LTE/GSM band mobile phone applications

Author

Chiu, Chien-Wen ; Chang, Chih-Hao ; Chi, Yu-Jen

Author_Institution

Dept. of Electron. Eng., Nat. Ilan Univ., Ilan, Taiwan

fYear

2010

fDate

20-24 Sept. 2010

Firstpage

382

Lastpage

385

Abstract

This paper presents a multiband meandered loop antenna presently being used in LTE/WWAN systems for smart phone applications. The proposed antenna which features a meandered folded-loop generates two resonance modes in the LTE/GSM bands. The mode characteristic is characterized as a parallel monopole-like mode combined with a PCB ground plane mode. By using an inverted-L-shape capacitively-coupled element connected to the feed port on the backplane, the impedance bandwidth is broadened to cover LTE700/GSM850/GSM900/PCS/UMTS/LTE2300 bands. The simulation performed in this research used a high frequency structure simulator (HFSS) to optimally design the antenna, and a practical structure was constructed for the test. Details of the proposed antenna parameters, including reflection coefficient, radiation characteristics, peak gain, and radiation efficiency are presented and discussed in this paper.

Keywords

3G mobile communication; cellular radio; loop antennas; mobile handsets; printed circuits; GSM; LTE; PCB ground plane mode; PCS; UMTS; WWAN; compact folded loop antenna; high frequency structure simulator; impedance bandwidth; inverted L-shape; mobile phone; Antenna measurements; Antenna radiation patterns; Bandwidth; Gain measurement; Mobile antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4244-7366-3

Type

conf

DOI

10.1109/ICEAA.2010.5653101

Filename

5653101