A novel approach to reduce the near field electromagnetic scattering for designing HAC compatible mobile phones

Microwave and Optical Technology Letters

Volumn 52, Issue 3, 2010, Pages 709-715

  Zhao, Anping ^a   Ollikainen, Jani ^a   Thaysen, Jesper ^b   Bodvarsson, Thorvaldur ^c  

^a NOKIA RESEARCH CENTER   (United States)

^b ReSound ^*  (Denmark)

^c OTICON A S   (Denmark)

Author keywords

Antenna; Hearing aids compatibility (HAC); Mobile phone; Printed wiring board (PWB)

Indexed keywords

BAND-STOP FILTERS; CURRENT FLOWING; DESIGN PRINCIPLES; ELECTROMAGNETIC FIELD SCATTERING; ELECTROMAGNETIC SCATTERING; HEARING AID; MOBILE PHONE DESIGN; NEAR FIELDS; PRINTED WIRING BOARD (PWB); PRINTED WIRING BOARDS;

AUDITION; ELECTROMAGNETIC FIELDS; ELECTROMAGNETIC WAVE SCATTERING; HEARING AIDS; MOBILE DEVICES; MOBILE PHONES; MOBILE TELECOMMUNICATION SYSTEMS; PRINTED CIRCUIT BOARDS; TELEPHONE; TELEPHONE SETS;

MOBILE ANTENNAS;

EID: 74849105244     PISSN: 08952477     EISSN: 10982760     Source Type: Journal    
DOI: 10.1002/mop.25026     Document Type: Conference Paper

References (9)

1. M. Okoniewski and M. A. Stuchly, Modelling of interaction of electromagnetic fields from a cellular telephone with hearing aids, IEEE Trans Microwave Theory Tech 46 (1998), 1686-1693.
2. R. E. Schlegel and F. H. Grant, Modelling the electromagnetic response of hearing aids to digital wireless phones, IEEE Trans Electromagn Compatibility 42 (2000), 347-357.
3. K. Caputa, M. A. Stuchly, M. Skopec, H. I. Bassen, P. Ruggera, and M. Kanda, Evaluation of electromagnetic interference from a cellular telephone with a hearing aid, IEEE Trans Microwave Theory Tech 48 (2000), 2148-2154.
4. American national standard methods of measurement of compatibility between wireless communications devices and hearing aids, American National Standards Institute, ANSI C63.19-2006.
5. G. J. Hayes and S. L. Vance, Reduction of near field electro-magnetic scattering using high impedance metallization terminations, US Patent, US 2006/0035607 A1, 2006.
6. G. J. Hayes, Reduction of near field E-M scattering using high impedance coating materials, US Patent, US 2006/0029217, A1, 2006.
7. A. P. Zhao and X. Zhang, A novel bandwidth enhancement approach for internal multi-band handset antennas, Conference Proceedings, AMPC 2008, Hong Kong and Macao, 2008.
8. A. P. Zhao, J. Ollikainen, J. Thaysen, and T. Bodvarsson, Design of HAC compatible mobile phone with LC band-stop filter embedded in PWB, Conference Proceedings, AMPC 2008, Hong Kong and Macao, 2008.
9. P. Vainikainen, J. Ollikainen, O. Kivekas, and I. Kelander, Resonator-based analysis of the combination of mobile handset antenna and chassis, IEEE Trans Antennas Propag 50 (2002), 1433-1444.