Electromagnetic resonator

H - Electricity – 01 – P

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Details

H01P 7/00 (2006.01) H01P 1/203 (2006.01) H01P 7/08 (2006.01)

Patent

CA 2160186

Electromagnetic resonators according to the invention comprise a first body, exemplarily a split thin ring, that is disposed between two planar field confining plates. The thickness (t) of the first body is less (typically less than 1/2 or 1/10) of the outer radius (R) of the body, and the distance between the first body and the confining plates is less than R. In preferred embodiments the first body comprises superconducting material. Resonators according to the invention can bereadily assembled into relatively compact filters that are easily tunable, can have large quality factor, and offer the possibility of single mode operation. Such filters can advantageously be used in, e.g., wireless communications systems.

La présente invention porte sur des résonateurs électromagnétiques qui comprennent un premier corps, par exemple, un anneau mince fendu, disposé entre deux plaques de confinement de champ plan. L'épaisseur (t) du premier corps est inférieure, généralement à 1/2 ou 1/10, au rayon extérieur R du corps, et la distance entre le premier corps et les plaques de confinement est inférieure à la valeur R. Dans les versions préférées, le premier corps comprend un matériau supraconducteur. D'après l'invention, les résonateurs peuvent être aisément assemblés en des filtres assez compacts qui sont facilement réglables; ils peuvent posséder un grand facteur de qualité et offrir une possibilité de fonctionnement monomode. Ces filtres peuvent être particulièrement utilisés dans, par exemple, les systèmes de communication sans fil.

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