Antenna device

Communications: radio wave antennas – Antennas – With radio cabinet

Reexamination Certificate

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Details

C343S7000MS, C343S866000

Reexamination Certificate

active

06909401

ABSTRACT:
An antenna device for a radio communication device, preferably a portable radio communication device, comprising a first antenna element (20) comprising a first feeding portion (22) connected to a first feeding device (24), a second antenna element (30; 230; 330; 430; 530; 630) comprising second feeding portions (32, 33; 332, 333) connected to a second feeding device (34), wherein said first antenna element (20) has an unbalanced feed, and said second antenna element (30; 230; 330; 430; 530; 630) has an essentially balanced feed.

REFERENCES:
patent: 4260990 (1981-04-01), Lichtblau
patent: 4903326 (1990-02-01), Zakman et al.
patent: 5300936 (1994-04-01), Izadian
patent: 5465099 (1995-11-01), Mitsui et al.
patent: 5760747 (1998-06-01), McCoy et al.
patent: 0817312 (1998-01-01), None
patent: 0945917 (1999-09-01), None
patent: WO90/13152 (1990-11-01), None

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