Coupled-Fed Shorted Monopole With a Radiating Feed Structure for Eight-Band LTE/WWAN Operation in the Laptop Computer

Author

Kang, Ting-Wei ; Wong, Kin-Lu ; Chou, Liang-Che ; Hsu, Ming-Ren

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan

Volume

59

Issue

2

fYear

2011

Firstpage

674

Lastpage

679

Abstract

A coupled-fed shorted monopole with its feed structure as an effective radiator for eight-band LTE/WWAN (LTE700/GSM850/900/1800/ 1900/UMTS/LTE2300/2500) operation in the laptop computer is presented. The radiating feed structure capacitively excites the shorted monopole. The feed structure mainly comprises a long feeding strip and a loop feed therein. The loop feed is formed at the front section of the feeding strip and connected to a 50-Ω mini-cable to feed the antenna. Both the feeding strip and loop feed contribute wideband resonant modes to combine with those generated by the shorted monopole for the desired eight-band operation. The antenna size above the top shielding metal wall of the laptop display is 4 × 10 × 80 mm³ and is suitable to be embedded inside the casing of the laptop computer. The proposed antenna is fabricated and tested, and good radiation performances of the fabricated antenna are obtained.

Keywords

3G mobile communication; Long Term Evolution; antenna feeds; antenna radiation patterns; laptop computers; mobile antennas; monopole antennas; wide area networks; LTE700/GSM850/900/1800/ 1900/UMTS/LTE2300/2500; antenna feed; coupled-fed shorted monopole; eight-band LTE/WWAN operation; laptop computer; loop feed; radiating feed structure; radiation performances; wideband resonant modes; Coupled-fed antennas; LTE antennas; WWAN antennas; internal laptop computer antennas; shorted monopoles;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2010.2096390

Filename

5654574