Miniature Internal Penta-Band Monopole Antenna for Mobile Phones

Author

Liu, Chia-Ling ; Lin, Yi-Fang ; Liang, Chia-Ming ; Pan, Shan-Cheng ; Chen, Hua-Ming

Author_Institution

Inst. of Photonics & Commun., Nat. Kaohsiung Univ. of Appl. Sci., Kaohsiung, Taiwan

Volume

58

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

1008

Lastpage

1011

Abstract

A compact T-slit monopole antenna with slotted ground plane in the mobile phone for penta-band operation is proposed. In this configuration, the antenna comprises a T-slit monopole printed on the top ungrounded portion of an FR4 substrate of small size of 47 ?? 5.4 mm² and a slotted ground plane etched on the back side of the substrate of size of 47 ?? 10 mm². In addition, an inverted-L copper strip is soldered to the end edge of the monopole for extending the electrical length of the antenna for GSM band; that is, the proposed antenna occupies a small volume of 47 ?? 10 ?? 5 mm³ inside the mobile phone and is suitable to operate as an internal antenna. By controlling the related parameters, the proposed antenna can resonates at different operating bands to cover GSM850/900 and DCS/PCS/UMTS operations independently.

Keywords

antenna radiation patterns; mobile antennas; mobile handsets; monopole antennas; DCS-PCS-UMTS operations; FR4 substrate; GSM band; T-slit monopole antenna; electrical length; inverted-L copper strip; miniature internal penta-band monopole antenna; mobile phones; slotted ground plane; 3G mobile communication; Bandwidth; Copper; Distributed control; Etching; GSM; Mobile antennas; Mobile communication; Mobile handsets; Personal communication networks; Printed circuits; Resonance; Slot antennas; Mobile phone; T-slit monopole antenna; penta-band;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2039309

Filename

5361339