R. Valkonen, S. Myllymaki, A. Huttunen, J. Holopainen, J. Ilvonen, P. Vainikainen, H. Jantunen
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Compensation of finger effect on a mobile terminal antenna by antenna selection
In this paper, compensation of the effect of the user's finger on the operation of a mobile terminal antenna is studied, using antenna selection as the compensation method. A dual-element antenna is compared with a single-element antenna occupying the same total antenna volume. The results show that antenna selection can provide an improvement of at least 2 dB in total efficiency at GSM1800 frequency band when the antenna is under influence of the index finger of the user.
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