H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 5/01 (2006.01) H01Q 1/00 (2006.01)
Patent
CA 2480296
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.
L'invention concerne une antenne comportant une structure résonante, comprenant un élément d'antenne (11) et une électrode adjacente (17A) et un moyen de commande (22, 25) servant à changer la fréquence de résonance de l'élément d'antenne. Le moyen de commande peut comprendre une membrane conductrice (17A) situées à une certaine distance de l'élément d'antenne. Pour changer la fréquence de résonance, il suffit de faire fléchir la membrane en appliquant une différence de potentiel entre la membrane et une électrode de commande adjacente.
Shafai Cyrus
Shafai Lotfollah
Adams Thomas
University Of Manitoba
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