Wireless communication device and signal...

Details Wireless communication device and signal... Wireless communication device and signal...

2007-03-05

2009-06-02

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S876000, C343S702000

Reexamination Certificate

active

07542009

ABSTRACT:
A wireless communication device using a single spiral inductor antenna and a signal receiving/transmitting method thereof operated on multi-band are provided. The single spiral inductor antenna is designed to have a plurality of different inductance paths. Different inductance values are inducted with signal paths switched by a plurality of switches so as to meet the requirements of multi-band operation. As the circuit structure of the single spiral inductor antenna is used, the circuit area is reduced effectively.

REFERENCES:
patent: 6433745 (2002-08-01), Nagumo et al.
patent: 6588002 (2003-07-01), Lampaert et al.
patent: 2003/0184403 (2003-10-01), Goyette et al.
patent: 2005/0068146 (2005-03-01), Jessie
patent: 2007/0279287 (2007-12-01), Castaneda et al.

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