CAPACITIVE RECOGNITION OF THE USER`S HAND GRIP POSITION IN MOBILE HANDSETS | Zendy

Sami Myllymäki | Zendy; Arttu Huttunen | Zendy; Vamsi Krishna Palukuru | Zendy; Heli Jantunen | Zendy; Markus Berg | Zendy; E. Salonen | Zendy

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CAPACITIVE RECOGNITION OF THE USER`S HAND GRIP POSITION IN MOBILE HANDSETS

Author(s) -

Sami Myllymäki,

Arttu Huttunen,

Vamsi Krishna Palukuru,

Heli Jantunen,

Markus Berg,

E. Salonen

Publication year - 2010

Publication title -

progress in electromagnetics research b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.208

H-Index - 47

ISSN - 1937-6472

DOI - 10.2528/pierb10042007

Subject(s) - capacitive sensing , hand position , computer science , position (finance) , artificial intelligence , business , operating system , finance

A capacitive method for measuring hand grip position on a mobile phone equipped with a dual-band planar inverted-F antenna (PIFA) and a monopole antenna was studied using difierent electrode arrangements. A capacitive sensor with a dual-electrode conflguration and an antenna-integrated capacitive sensor for hand grip recognition were developed. The sensitivities of the sensors were measured along the front, side and back of the phone. The dual-electrode sensor conflguration exhibited its best sensitivity of 29fF at the bottom end of the phone. The PIFA antenna-integrated sensor proved to have sensitivity of 420fF and the monopole antenna-integrated sensor had sensitivity of 115fF, making them both reasonable solutions for hand grip sensors in mobile applications.

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