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A compact internal double tailed‐helical antenna (DTHA) for mobile handsets
Author(s) -
Hsu ChoKang,
Chiu ChengNan,
Deng ShengMing
Publication year - 2005
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.20837
Subject(s) - omnidirectional antenna , microwave , radiation pattern , engineering , antenna efficiency , helical antenna , return loss , electrical engineering , antenna (radio) , radiation , bandwidth (computing) , electronic engineering , acoustics , physics , telecommunications , optics
In this paper, a novel internal antenna, called a double‐tailed helical antenna (DTHA), is proposed for modern mobile handsets. A DTHA has the merits of being compact in size, cost effective, easy to manufacture, and easy to fine‐tune, as well as having good electrical performance. A prototype of a DTHA for operation in the EGSM/DCS bands is constructed and shown. Its volume can be limited to 28 × 6 × 6.5 mm. The measured and simulated return losses and the measured radiation patterns are obtained. The experimental results demonstrate the broad bandwidth and omnidirectional radiation performance of the newly developed antenna. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 406–408, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20837