Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2006-01-10
2006-01-10
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S7000MS, C343S895000, C455S078000, C455S575700
Reexamination Certificate
active
06985113
ABSTRACT:
A radio antenna apparatus is provided with an antenna connected with a radio communication circuit that transmits and receives a radio signal. A load impedance element is connected between a parasitic element of an electrical conductor plate and a ground of a housing of a radio communication apparatus including the radio communication circuit. A controller controls an element value of the load impedance element so as to set a current flowing on the housing to be equal to or smaller than a predetermined value when the radio communication apparatus transmits the radio signal, thereby controlling a specific absorption rate (SAR) to be equal to or smaller than a predetermined value.
REFERENCES:
patent: 5610519 (1997-03-01), Hankui et al.
patent: 5789929 (1998-08-01), Hankui
patent: 5977917 (1999-11-01), Hirose
patent: 6211830 (2001-04-01), Monma et al.
patent: 6285893 (2001-09-01), Keirinbou
patent: 6456248 (2002-09-01), Ito
patent: 6657595 (2003-12-01), Phillips et al.
patent: 6664930 (2003-12-01), Wen et al.
patent: 2002/0094789 (2002-07-01), Harano
patent: 2004/0094316 (2004-05-01), Ohno et al.
patent: 0 860 897 (1998-08-01), None
patent: 0 970 988 (2000-01-01), None
patent: 2 327 572 (1999-01-01), None
patent: 2790103 (1998-06-01), None
patent: 2000-82333 (2002-03-01), None
patent: 2002-107396 (2002-04-01), None
patent: 02/075846 (2002-09-01), None
Niels Kuster et al.,Energy Absorption Mechanism by Biological Bodies in the Near Field of Dipole Antennas Above 300 MHz, IEEE Transaction on Vehicular Technology, vol. 41, No. 1, pp. 17-23, Feb. 1992.
“Standard of Specific Absorption Rate Measurement Method of Portable Radio Terminal”, issued by Association of Radio Industries and Business in Japan, ARIB STB-T56 Ver. 2.0, revised on Jan. 24, 2002.
Bernhard Rosenberger, “Miniature Dielectric-loaded Personal Telephone Antennas with Low SAR”, Radio and Wireless Conference, 1998, Rawcon 98, IEEE Colorado Springs, Colorado, U.S.A., Aug. 9, 1998, pp. 103-108.
Yoshio Koyanagi et al., “Estimation of the Radiation and SAR Characteristics of the NHA at 150 MHz by Use of the Cylindrical Whole Body Phantom”, IEEE Antennas and Propagation Society International Symposium, 2001, Digest, APS, Boston Massachusetts, U.S.A., Jul. 8, 2001, New York, vol. 1 of 4, pp. 78-81.
Iwai Hiroshi
Nishimura Shotaro
Ogawa Koichi
Yamamoto Atsushi
Matsushita Electric - Industrial Co., Ltd.
Phan Tho
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Radio antenna apparatus provided with controller for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radio antenna apparatus provided with controller for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio antenna apparatus provided with controller for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3585657