Mobile communication terminal having electrostatic discharge...

Details Mobile communication terminal having electrostatic discharge... Mobile communication terminal having electrostatic discharge...

2007-12-11

2007-12-11

Owens, Douglas W. (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S718000, C343S895000

Reexamination Certificate

active

11361183

ABSTRACT:
Disclosed is a mobile communication terminal having an ESD (electrostatic discharge) protection function that includes a multi-band intenna including: a main signal pattern line that transmits/receives a main frequency band signal and is formed in a meander-line shape; at least one sub signal pattern line that is formed unitarily with the main signal pattern line and transmits/receives a frequency band signal different from that of the main signal pattern line; a discharge pattern line that is provided between the main and sub signal pattern lines to form a spark gap and performs an ESD protection function; a feed point that is formed on the main signal pattern line for power feeding; and a shorting point that is formed on the discharge pattern line to discharge static electricity to a ground terminal.

REFERENCES:
patent: 5280646 (1994-01-01), Koyama et al.
patent: 5503059 (1996-04-01), Pacholok
patent: 6445039 (2002-09-01), Woo et al.
patent: 0 367 225 (1990-05-01), None
patent: 56-153805 (1981-11-01), None
patent: 2000-312108 (2000-11-01), None
patent: 10-2005-0041470 (2005-05-01), None
patent: WO 2004/045019 (2004-05-01), None

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