Double frequency antenna

Details Double frequency antenna Double frequency antenna

2005-04-19

2005-04-19

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

C343S792000, C343S795000, C343S727000

Reexamination Certificate

active

06882324

ABSTRACT:
A double frequency antenna for transmitting and receiving radio signals includes a first substrate and a second substrate. The first substrate has a first surface and a second surface opposing each other. The first surface has a first radiation section to radiate a corresponding first frequency. The second surface has a first ground section. The second substrate has four L-shape corners, and a first surface and a second surface opposing each other. The first surface has a second radiation section to radiate a corresponding second frequency. The second surface has a second ground section.

REFERENCES:
patent: 6222494 (2001-04-01), Erkocevic
patent: 20020024474 (2002-02-01), Chen
patent: 20020190912 (2002-12-01), Lebaric et al.
patent: 20040056805 (2004-03-01), Chen
patent: 20040183727 (2004-09-01), Choi

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