Analysis of cellular antennas for hearing-aid compatible mobile phones

IEEE Transactions on Antennas and Propagation

Volumn 60, Issue 2 PART 2, 2012, Pages 1043-1052

  Ikonen, Pekka M T ^a   Boyle, Kevin R ^b  

^a EPCOS AG   (Germany)

^b Bracknell   (United Kingdom)

Author keywords

Cellular antenna; GSM; Hearing aid compatibility; Mobile phone; Radiating and balancedmode analysis; Spatial near field profile

Indexed keywords

ACOUSTIC OUTPUTS; ASSESSMENT CRITERIA; ATTRACTIVE SOLUTIONS; DUAL-FEED; FEDERAL COMMUNICATIONS COMMISSION; HEARING-AID COMPATIBILITY; INHERENT CHARACTERISTICS; MATCHING CIRCUIT; MODE ANALYSIS; NEAR-FIELD; NEAR-FIELD DISTRIBUTION; RADIATING AND BALANCEDMODE ANALYSIS; RADIO FREQUENCIES;

AUDITION; GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS; MOBILE DEVICES; MOBILE PHONES; TELEPHONE SETS; WIRELESS TELECOMMUNICATION SYSTEMS;

ANTENNAS;

EID: 84857025051     PISSN: 0018926X     EISSN: None     Source Type: Journal    
DOI: 10.1109/TAP.2011.2173149     Document Type: Article

References (25)

1. Hearing Aid Compatibility for Wireless Telephones. NewYork:FCC Consumer Publications [Online]. Available: http://www.fcc.gov/cgb/ consumerfacts/hac- wireless.html
2. American National Standard for Method of Measurements of Compatibility Between Wireless Communication Devices and Hearing Aids, ANSI C63.19-2007, Amer. Nat. Standards Inst., 2007, New York.
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. Microw. Theory Tech., vol. 48, no. 11, pp. 2148-2154, Nov. 2000.
4. R. E. Schlegel and F. H. Grant, "Modeling the electromagnetic response of hearing aids to digital wireless phones," IEEE Trans. Electromagn. Compat., vol. 42, no. 4, pp. 347-357, Nov. 2000.
5. P. Lindberg, A. Kaikkonen, and M. Sudow, "Improvement of hearing aid compatibility (HAC) of terminal antennas using wavetraps," in Proc. 2009 IEEE Int. Workshop Antenna Technology IWAT, Santa Monica, CA, Mar. 2009, pp. 1-4.
6. P. Bahramzy, L. Azzinnari, K. B. Jakobsen, and M. Sager, "Near-field reduction techniques in the speaker area of slide mobile phones for improved HAC performance," in Proc. 2009 Antennas Propag. Soc. Int. Symp., Charleston, SC, Jun. 2009, pp. 1-4.
7. P. Hui, "Near fields of phased antennas for mobile phones," in Proc. 2009 Asian Pacific Microw. Conf., Singapore, Dec. 2009, pp. 2718-2721.
8. M. Skopec, "Hearing aid electromagnetic interference from digital wireless telephones," IEEE Trans. Rehabilitation Engineering, vol. 6, no. 2, pp. 235-239, Jun. 1998.
9. M. Okoniewski and M. A. Stuchly, "Modeling of interaction of electromagnetic fields from a cellular telephone with hearing aids," IEEE Trans. Microw. Theory Tech., vol. 46, no. 11, pp. 1686-1693, Nov. 1998.
10. J. Holopainen, J. Ilvonen, O. Kivekäs, R. Valkonen, C. Icheln, and P. Vainikainen, "Near-field control of handset antennas based on inverted- top wavetraps: Focus on hearing-aid compatibility," IEEE Antennas Wireless Propag.Letters, vol. 8, pp. 592-595, 2009.
11. C.-T. Lee and K.-L. Wong, "InternalWWAN clamshell phone antenna using a current trap for reduced ground plane effects," IEEE Trans. Antennas Propag., vol. 57, no. 10, pp. 3303-3308, Oct. 2009.
12. A. Zhao, J. Ollikainen, J. Thaysen, and T. Bodvarsson, "Design ofHAC compatible mobile phone with LC band-stop filter embedded in PWB," in Proc. 2008 Asian Pacific Microw. Conference, Macau, Dec. 2008, pp. 1-4.
13. J. Ilvonen, J. Holopainen, O. Kivekäs, R. Valkonen, C. Icheln, and P. Vainikainen, "Balanced antenna structures of mobile phones," in Proc. 2010 Eur. Conf. Antennas Propagatiion (EuCAP 2010), Barcelona, Spain, Apr. 2010, pp. 1-5.
14. H. Morishita, H. Furuuchi, and K. Fujimoto, "Performance of balance- fed antenna system for handsets in the vicinity of a human head or hand," in IEE Proc. Microw., Antennas Propag., Apr. 2002, vol. 149, no. 2, pp. 85-91.
15. S. Hayashida, H. Morishita, and K. Fujimoto, "Self-balanced wideband folded loop antenna," in IEE Proc. Microw., Antennas Propag., Feb. 2006, vol. 153, no. 1, pp. 7-12.
16. C. Di Nallo and A. Faraone, "Multiband internal antenna for mobile phones," IEE Electron. Lett., vol. 41, no. 9, pp. 1-2, Apr. 2005.
17. I. Szini, C. Di Nallo, and A. Faraone, "The enhanced bandwidth folded inverted conformal antenna (EB FICA) for multi-band cellular handsets," in Proc. 2007 Antennas Propag. Soc. Int. Symp., Honolulu, HI, Jun. 2007, pp. 4697-4700.
18. K. R. Boyle and L. P. Ligthart, "Radiating and balanced mode analysis of PIFA antennas," IEEE Trans. Antennas Propag., vol. 54, no. 1, pp. 231-237, Jan. 2006.
19. B. S. Collins, S. P. Kingsley, J.M. Ide, S. A. Saario, R.W. Schlub, and S. G. O'Keefe, "A multi-band hybrid balanced antenna," in Proc. 2006 IEEE Int. Workshop Small Antennas Metamaterials IWAT, Mar. 2006, pp. 1-4.
20. A. D. Yaghjian and S. R. Best, "Impedance, bandwidth, and Q of antennas," in Proc. 2003 IEEE Antennas Propag. Soc. Int. Symp., Columbus, OH, Jun. 2003, vol. 1, pp. 501-504.
21. T. Ranta, "Dual-Resonant Antenna," U.S. Patent 7 242 364 B2, Jul. 10, 2007.
22. P. Bahramzy and M. Sager, "Dual-feed ultra-compact reconfigurable handset antenna for penta-band operation," in Proc. 2010 Antennas Propag. Soc. Int. Symp., Toronto, ON, Jul. 2010, pp. 1-4.
23. R. Whatley, T. Ranta, and D. Kelly, "RF front-end tunability for LTE handset applications," in 2010 Proc. Compound Semiconductor Integrated Circuit Symp., Monterey, CA, Oct. 2010, pp. 1-4.
24. T. Ranta, D. Pilgrim, and R. Whatley, "RF front end adapts for increased mobile data demand," EE Times, pp. 1-9, Oct. 2010.
25. The Prismark Wireless Technology Report, Sep. 2010.