Avoiding the interaction between hand and capacitive coupling element based mobile terminal antenna

Author

Valkonen, Risto ; Ilvonen, Janne ; Rasilainen, Kimmo ; Holopainen, Jari ; Icheln, Clemens ; Vainikainen, Pertti

Author_Institution

Sch. of Electr. Eng., Dept. of Radio Sci. & Eng., Aalto Univ., Aalto, Finland

fYear

2011

fDate

11-15 April 2011

Firstpage

2781

Lastpage

2785

Abstract

Interaction between a mobile terminal antenna and a hand of a user is investigated with an experimental study using capacitive coupling element antennas and homogeneous anthropomorphically shaped hand phantoms. The frequency bands used in the study are 880-960 MHz and 1710-1880 MHz. The significance of the shape, size and position of the antenna element on the antenna input impedance and efficiency in the presence of a hand phantom is demonstrated. The results indicate that a part of the hand-originated losses can be avoided by taking the hand effects into consideration in antenna design.

Keywords

microwave antennas; mobile antennas; capacitive coupling element antenna; frequency 1710 MHz to 1880 MHz; frequency 880 MHz to 960 MHz; hand coupling element antenna; hand-originated loss; homogeneous anthropomorphically shaped hand phantom; mobile terminal antenna; Antenna measurements; Couplings; Fingers; Mobile antennas; Mobile communication; Phantoms;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5782156