Arrangement and method relating to microwave devices

H - Electricity – 01 – P

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H01P 1/201 (2006.01) H01P 5/00 (2006.01) H01P 7/10 (2006.01)

Patent

CA 2286857

The present invention relates to an arrangement (10) for coupling electro magnetic waves, particularly microwaves into and/or out of a device which comprises a dielectric resonator having a non-linear dielectric substrate with a high dielectric constant and a coupling loop (14). The dimensions of the resonator and the coupling loop (14) are correlated to the resonant frequency of the resonator and the coupling loop (14) is so arranged in relation to the resonator that the magnetic field line around the coupling loop match the internal film distribution of at least one mode, which has been selected to be excited, so that only said at least one mode is excited. Coupling is provided only for such mode. The length of the coupling loop (14) is comparable to or larger than the dimensions of the resonator.

L'invention concerne un système (10) permettant de coupler des ondes électromagnétiques, notamment des hyperfréquences entrant et/ou sortant d'un dispositif comprenant un résonateur diélectrique. Ce résonateur diélectrique comprend un substrat diélectrique non linéaire disposant d'une constante diélectrique élevée et d'une boucle de couplage (14). Les dimensions du résonateur et de la boucle de couplage (14) sont en relation avec la fréquence résonnante du résonateur. La boucle de couplage (14) est disposée par rapport au résonateur de telle façon que la ligne de champ magnétique autour de la boucle de couplage corresponde à la distribution du film interne d'au moins un mode ayant été sélectionné pour être excité, de telle façon qu'au moins ce ou ces modes soient excités. Le couplage est réalisé uniquement pour un tel mode. La longueur de la boucle de couplage (14) est comparable ou supérieure aux dimensions du résonateur.

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