Capacitive sensor arrangement to detect external load on a mobile terminal antenna

Progress In Electromagnetics Research Letters

Volumn 15, Issue , 2010, Pages 13-18

  Huttunen, A ^a   Myllymaki, S ^a   Komulainen, M ^b   Jantunen, H ^a  

^a UNIVERSITY OF OULU   (Finland)

^b MICROSOFT   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANTENNAS; COMPUTER TERMINALS; MICROSTRIP ANTENNAS; MOBILE ANTENNAS; MOBILE PHONES; MOBILE TELECOMMUNICATION SYSTEMS; OBJECT DETECTION;

BODY TISSUES; EXTERNAL LOADS; HUMAN FINGERS; MOBILE TERMINAL ANTENNAS; SENSOR ARRANGEMENTS;

CAPACITIVE SENSORS;

EID: 78651285453     PISSN: 19376480     EISSN: None     Source Type: Journal    
DOI: 10.2528/PIERL10050404     Document Type: Article

References (9)

1. Toftgard, J., S. Hornsleth, and J. Andersen, "Effects on portable antennas of the presence of a person," IEEE Trans. on Antennas and Propag., Vol. 41, No. 6, 739-746, June 1993.
2. Krogerus, J., J. Toivanen, C. Icheln, and P. Vainikainen, "Effect of the human body on total radiated power and the 3-D radiation pattern of mobile handsets," IEEE Trans. Instrumentation and Measurement, Vol. 56, No. 6, 2375-2385, December 2007.
3. Pelosi, M., O. Franek, M. Knudsen, M. Christensen, and G. Pedersen, "A grip study for talk and data modes in mobile phones," IEEE Trans. Antennas and Propag., Vol. 57, No. 4, 856- 865, April 2009.
4. Lindberg, P., A. Kaikkonen, and B. Kochali, "Body loss measurements of internal terminal antennas in talk position using real human operator," Proc. Int. Workshop on Antenna Tech.: Small Antennas and Novel Metamaterials, IWAT 2008, 358-361, Chiba, Japan, March 2008.
5. Ramachandran, P., Z. Milosavljevic, and C. Beckman, "Adaptive matching circuitry for compensation of finger effect on handset antennas," Proc. 3rd European Conference on Antennas and Propag. EuCAP 2009, 801-804, Berlin, Germany, March 2009.
6. Gabriel, S., R. W. Lau, and C. Gabriel, "The dielectric properties of a human body tissues: III. Parametric models for the dielectric spectrum of tissues," Phys. Med. Biol., Vol. 41, 2271-2293, 1996.
7. Riddle, B., J. Baker-Jarvis, and J. Krupka, "Complex permittivity measurements of common plastics over variable temperature," IEEE Trans. Microwave Theory and Tech., Vol. 51, No. 3, 727- 733, March 2003.
8. Myllymaki, S., A. Huttunen, M. Berg, M. Komulainen, and H. Jantunen, "Method for measuring user-induced load on mobile terminal antenna," IET Electronics Letters, Vol. 45, No. 21, 1065- 1066, October 8, 2009.
9. Komulainen, M., M. Berg, H. Jantunen, E. Salonen, and C. Free, "A frequency tuning method for a planar inverted-F antenna," IEEE Trans. Antennas and Propag., Vol. 56, No. 4, 944-950, April 2008.