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Bandwidth enhancement of multiband handset antennas by opening a slot on mobile chassis
Author(s) -
Zhang Xingyu,
Zhao Anping
Publication year - 2009
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.24414
Subject(s) - handset , chassis , ground plane , bandwidth (computing) , engineering , planar , electrical engineering , electronic engineering , microwave , folded inverted conformal antenna , microstrip antenna , antenna (radio) , computer science , telecommunications , antenna efficiency , aerospace engineering , computer graphics (images)
To overcome the shortcoming of narrow bandwidth for traditional planar inverted‐F antenna (PIFA), a novel bandwidth enhancement technique for internal multiband mobile handset antennas is proposed in this article. In particular, a rectangular slot with an appropriate location and a proper size is introduced into the ground plane of the system printed circuit board to improve the bandwidths of handset antennas in both the low‐ (GSM850 and GSM900) and high‐ (DCS1800 and PCS1900) bands. A prototype that can cover the frequency bands of GSM850, GSM900, DCS1800, and PCS1900 simultaneously was fabricated and measured. Good agreement between the measurement and simulation results is achieved. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1702–1706, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24414