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Effect of the chassis length on the bandwidth, SAR, and efficiency of internal mobile phone antennas
Author(s) -
Kivekäs Outi,
Ollikainen Jani,
Lehtiniemi Tuukka,
Vainikainen Pertti
Publication year - 2003
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.10789
Subject(s) - chassis , mobile phone , bandwidth (computing) , microwave , electrical engineering , antenna efficiency , engineering , antenna (radio) , electronic engineering , acoustics , physics , telecommunications , radiation pattern , aerospace engineering
The effect of the chassis length on the characteristics of the combination of an internal mobile phone antenna and a phone chassis were studied with simulations at 900 MHz and 1800 MHz. The results show that a local increase of SARs and a local decrease of radiation efficiency occur when the bandwidth reaches its maximum. This happens when the resonant frequency of the chassis equals that of the antenna. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 457–462, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10789