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Pentaband printed antenna for laptop computer
Author(s) -
Chang TheNan,
Shih Kai,
Su JiaHung,
Chen HungJen,
Wu YuYuan
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25859
Subject(s) - j pole antenna , stub (electronics) , standing wave ratio , electrical engineering , umts frequency bands , engineering , laptop , monopole antenna , microwave , dipole antenna , omnidirectional antenna , electronic engineering , acoustics , coaxial antenna , microstrip antenna , computer science , telecommunications , antenna (radio) , physics , operating system
This article presents design and measurement of a planar multiband (GSM850/900, DCS, PCS, and UMTS bands) antenna used in a laptop computer. The antenna can be identified by crossly connecting a meandered inverted‐F configuration and a T‐shaped monopole. The inverted‐F part is mainly responsible for GSM‐band operation. To cover the DCS, PCS, and UMTS bands, a T‐shaped monopole is added. Although directly connecting them together, VSWR cannot meet the specification at the higher band. Therefore, an open‐tub is added at bottom end of the T‐shaped monopole. It is investigated that the stub serves as a capacitive match element. After tuning length of this stub, all properties of the pentaband antenna include the bandwidth, radiating pattern, and gain variation can satisfy practical applications. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:857–861, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25859