Reception antenna, core, and portable device

Details Reception antenna, core, and portable device Reception antenna, core, and portable device

2005-08-02

2005-08-02

Wimer, Michael C. (Department: 2828)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S788000, C343S867000

Reexamination Certificate

active

06924767

ABSTRACT:
A reception antenna is formed of a column-profiled ferrite core and three antenna coils, each of which is formed by winding electric wire around the core. Each central axis of the three antenna coils is mutually disposed orthogonally at a barycenter of the core. Each of the three antenna coils is symmetrical with respect to the barycenter. A third antenna coil and each of a first antenna coil and a second antenna coil are overlapped with a space. The first antenna coil and the second antenna coil are overlapped with direct contact, where a starting end of the second antenna and a terminating end (outward end) of the first antenna is connected.

REFERENCES:
patent: 5047715 (1991-09-01), Morgenstern
patent: 5281941 (1994-01-01), Bernstein
patent: 6407677 (2002-06-01), Avenel et al.
patent: 6563474 (2003-05-01), Nantz et al.
patent: 1 376 762 (2003-06-01), None
patent: 2326 769 (1998-12-01), None
patent: A-08-293725 (1996-11-01), None
patent: A-2003-92509 (2003-03-01), None
Search Report dated Feb. 27, 2004.

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