Antenna capable of micro-tuning and macro tuning for...

Details Antenna capable of micro-tuning and macro tuning for... Antenna capable of micro-tuning and macro tuning for...

2008-05-20

2008-05-20

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

C343S7000MS, C343S702000

Reexamination Certificate

active

07375694

ABSTRACT:
Disclosed is an antenna capable of micro-tuning and macro-tuning for a wireless terminal, comprising: a radiator radiating electromagnetic waves; a ground connected to the radiator; at least one switching element positioned at a lengthwise region of the radiator, for shorting or opening the region of the radiator; and a voltage controlling element positioned at the radiator between the switching element and the ground, for controlling the extent of a voltage potential applied across the radiator. In accordance with the present invention, the antenna is capable of the macro-tuning between the service bands and micro-tuning for channel control within the service bands. Furthermore, the size of the antenna is significantly reduced and the antenna is installed on a circuit board in a patch type, thereby simplifying a work process.

REFERENCES:
patent: 7071887 (2006-07-01), Shigihara et al.
patent: 7129894 (2006-10-01), Winter
patent: 7260424 (2007-08-01), Schmidt
patent: 7307598 (2007-12-01), Shigihara
patent: 7315287 (2008-01-01), Shigihara
patent: 2006/0262015 (2006-11-01), Thornell-Pers et al.
patent: 1998-087437 (1998-12-01), None
patent: 20-0393219 (2005-08-01), None
patent: 2006-0012621 (2006-02-01), None
patent: 2004102737 (2004-11-01), None

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