Internal Uniplanar Antenna for LTE/GSM/UMTS Operation in a Tablet Computer

Author

Jui-Han Lu ; Yi-Shiang Wang

Author_Institution

Dept. of Electron. Commun. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan

Volume

61

Issue

5

fYear

2013

fDate

5/1/2013 12:00:00 AM

Firstpage

2841

Lastpage

2846

Abstract

With the use of an internal printed loop matching circuit, a small-size uniplanar antenna with eight-band LTE/GSM/UMTS operation in the tablet computer is proposed. The obtained impedance bandwidth across the operating bands can reach about 262/1610 MHz for the LTE/GSM/UMTS bands, respectively. Only with the antenna size of 40×15×0.8 mm³, the proposed planar antenna has the compact operation with more than 30% antenna size reduction. Furthermore, the measured peak gains and antenna efficiencies are about 2.81/4.97 dBi and 79/87% for the LTE/GSM/UMTS bands, respectively.

Keywords

3G mobile communication; Long Term Evolution; UHF antennas; cellular radio; loop antennas; microstrip antennas; mobile antennas; monopole antennas; multifrequency antennas; notebook computers; planar antennas; antenna efficiency; antenna size reduction; eight-band LTE/GSM/UMTS operation; impedance bandwidth; internal printed loop matching circuit; internal uniplanar antenna; monopole antenna; peak gains; planar antenna; small-size uniplanar antenna; tablet computer; 3G mobile communication; Antenna measurements; Antennas; Bandwidth; Frequency measurement; GSM; Impedance; Long term evolution (LTE); monopole antenna; shorted strip;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2013.2243693

Filename

6423798