Multiple frequency antenna

Details Multiple frequency antenna Multiple frequency antenna

2006-05-23

2006-05-23

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S745000

Reexamination Certificate

active

07050004

ABSTRACT:
An antenna having a resonant structure, comprises an antenna element (11) and an adjacent electrode (17A) and control means (22,25) for changing a resonance frequency of the antenna element. The control means may comprise a conductive membrane (17A) spaced from the antenna element. The resonance frequency then is changed by flexing the membrane, conveniently by applying a potential difference between the membrane and an adjacent control electrode.

REFERENCES:
patent: 5646634 (1997-07-01), Bokhari et al.
patent: 5917450 (1999-06-01), Tsunekawa et al.
patent: 6297776 (2001-10-01), Pankinaho
patent: 6473042 (2002-10-01), Fang et al.
patent: 6633261 (2003-10-01), Iwai et al.
patent: 6819290 (2004-11-01), Hani et al.

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