Antenna device for portable terminals and radio unit for...

Details Antenna device for portable terminals and radio unit for... Antenna device for portable terminals and radio unit for...

2011-04-05

2011-04-05

Phan, Tho G (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S895000

Reexamination Certificate

active

07920098

ABSTRACT:
There is provided an antenna device for use with a portable terminal, which can be used in different frequency bands by combining antenna characteristics.Whip antenna is electrically connected to power feeder through contact member, and resonates in a UHF band or higher when extended. Coiled antenna is electrically connected to power feeder through frequency filter mounted on device board. Frequency filter is set to a low impedance in a VHF band to supply electric power to coiled antenna. With this arrangement, external whip antenna is excited in the UHF band or higher, and built-in coiled antenna is mainly excited in the VHF band. The antenna device is thus capable of sending or receiving radio waves in a wide frequency band.

REFERENCES:
patent: 7130591 (2006-10-01), Iwai et al.
patent: 2007/0052595 (2007-03-01), Harano
patent: 2009/0096685 (2009-04-01), Harano
patent: 1973-20349 (1973-03-01), None
patent: 49-69004 (1974-07-01), None
patent: 58-191741 (1983-12-01), None
patent: 59-219028 (1984-12-01), None
patent: 61-281724 (1986-12-01), None
patent: 4-200047 (1992-07-01), None
patent: 5-304408 (1993-11-01), None
patent: 7-50843 (1995-05-01), None
patent: 7-307694 (1995-11-01), None
patent: 8-70215 (1996-03-01), None
patent: 2569649 (1996-10-01), None
patent: 9-148824 (1997-06-01), None
patent: 9-148827 (1997-06-01), None
patent: 9-199917 (1997-07-01), None
patent: 9-270836 (1997-10-01), None
patent: 10-22730 (1998-01-01), None
patent: 10-51224 (1998-02-01), None
patent: 10-79615 (1998-03-01), None
patent: 11-4113 (1999-01-01), None
patent: 11-88037 (1999-03-01), None
patent: 11-298229 (1999-10-01), None
patent: 11-317612 (1999-11-01), None
patent: 2000-278014 (2000-10-01), None
patent: 3119553 (2000-10-01), None
patent: 2000-516056 (2000-11-01), None
patent: 2001-251232 (2001-09-01), None
patent: 2001-274620 (2001-10-01), None
patent: 2002-64329 (2002-02-01), None
patent: 2002-76982 (2002-03-01), None
patent: 2002-171315 (2002-06-01), None
patent: 2002-176373 (2002-06-01), None
patent: 3339967 (2002-08-01), None
patent: 2002-314450 (2002-10-01), None
patent: 2002-325015 (2002-11-01), None
patent: 2003-37418 (2003-02-01), None
patent: 2003-60416 (2003-02-01), None
patent: 2003-87023 (2003-03-01), None
patent: 2003-124719 (2003-04-01), None
patent: 2003-124853 (2003-04-01), None
patent: 2003-124854 (2003-04-01), None
patent: 2003-153111 (2003-05-01), None
patent: 2003-244015 (2003-08-01), None

Affiliated with

Also associated with

Rating

Antenna device for portable terminals and radio unit 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 Antenna device for portable terminals and radio unit for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna device for portable terminals and radio unit for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2717434