Dual band antenna

Details Dual band antenna Dual band antenna

2008-11-07

2011-10-18

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S7000MS, C343S846000

Reexamination Certificate

active

08040283

ABSTRACT:
An antenna applied in a communication device is provided. The antenna includes a conductive supporting portion, a radiator and a grounding portion. The radiator operates in a first frequency band. The grounding portion is connected to the radiator through the conductive supporting portion. The grounding portion includes a cavity extended from a top surface of the grounding portion into the interior of the grounding portion. A resonant cavity operating in a second frequency band is formed between the radiator and the cavity.

REFERENCES:
patent: 7161543 (2007-01-01), Cheng et al.
patent: 7375686 (2008-05-01), Ku et al.
patent: 2004/0008146 (2004-01-01), Ikegaya et al.
patent: 2005/0190108 (2005-09-01), Lin et al.
patent: 2007/0001913 (2007-01-01), Tsai et al.
patent: 2373638 (2002-09-01), None
patent: 261952 (2006-09-01), None
patent: 2006070017 (2006-07-01), None
Search Report issued in related EP application No. 08019776.7, dated Mar. 20, 2009, 7 pages.

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