Built-in type antenna apparatus for portable terminal

Details Built-in type antenna apparatus for portable terminal Built-in type antenna apparatus for portable terminal

2007-11-27

2007-11-27

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000, C343S767000

Reexamination Certificate

active

11231121

ABSTRACT:
Disclosed is a built-in type antenna apparatus for a portable terminal which separates an antenna from a slot antenna and includes an additional sub-antenna. The built-in type antenna apparatus includes a first planar antenna having a shorting point and a feeding point; a second planar antenna provided at a position adjacent to the first planar antenna, the second planar antenna having a shorting point and providing at least one slot; and a sub-antenna electrically connected to the first planar antenna and electromagnetically coupled with the second planar antenna.

REFERENCES:
patent: 6552686 (2003-04-01), Ollikainen et al.
patent: 6856819 (2005-02-01), Itoh
patent: 2002/0021248 (2002-02-01), Ying et al.
patent: 102 04 079 (2003-08-01), None
patent: 0 942 488 (1999-09-01), None
patent: 1 113 524 (2001-07-01), None
patent: 1 387 433 (2004-02-01), None
patent: WO 01/33665 (2001-05-01), None
patent: WO 03/034544 (2003-04-01), None

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