Magnetic coupling of a waveguide switch to a coaxial switch

H - Electricity – 01 – P

Patent

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H01P 5/08 (2006.01)

Patent

CA 2169128

A dual switch for coupling a waveguide microwave switch to a coaxial microwave switch. The waveguide microwave switch has a waveguide hollow member and a waveguide rotating section rotatably mounted about a rotational axis within the waveguide hollow member at one end. The coaxial microwave switch has a coaxial hollow member adjacent to the one end of the waveguide hollow member and a coaxial rotating section rotatably mounted within the coaxial hollow member about an axis coaxial with the rotational axis. The waveguide microwave switch is coupled to the coaxial microwave switch by at least one set of cooperating magnets fastened at a given radial distance from the rotational axis to the waveguide rotating section and the coaxial rotating section respectively, such that any rotation of the waveguide rotating section about the rotational axis will be followed by a corresponding rotation about the rotational axis of the coaxial rotating section. The set of magnets includes two magnets located radially opposite each other on the waveguide rotating section near its end and two pairs of magnets located radially opposite each other on the coaxial rotating section so that the magnets are centered between the pairs of magnets and repulse each other. This eliminates any openings between the waveguide microwave switch and the coaxial microwave switch and thus any radio-frequency leakage between the two switches.

L'invention est un commutateur double servant à coupler un commutateur de guide de micro-ondes et un commutateur coaxial. Le commutateur de guide de micro-ondes comporte un élément de guidage de micro-ondes creux et une section de rotation de guide d'ondes montée à l'une des extrémités de l'élément creux et pouvant tourner autour de son axe. Le commutateur coaxial comporte un élément coaxial creux qui est monté à l'une des extrémités de l'élément de guide d'ondes creux, et une section coaxiale montée dans cet élément creux et pouvant tourner autour de son axe. Le commutateur de guide d'ondes est couplé au commutateur coaxial par au moins un ensemble d'aimants qui coopèrent les uns avec les autres et qui sont fixés à une distance radiale donnée entre l'axe de rotation et la section de guide d'ondes tournante et la section coaxiale tournante respectivement, de telle sorte que toute rotation de la section de guide d'ondes tournante par rapport à l'axe de rotation sera suivie par une rotation correspondante de la section coaxiale tournante autour du même axe. L'ensemble d'aimants comprend deux aimants montés radialement en opposition l'un avec l'autre sur la section tournante de guide d'ondes près de son extrémité et deux paires d'aimants montées radialement en opposition l'une avec l'autre sur la section coaxiale tournante de façon que les aimants soient centrés entre les paires d'aimants et se repoussent l'un l'autre. Ceci empêche les ouvertures entre le commutateur de guide de micro-ondes et le commutateur coaxial et, par conséquent, les fuites radiofréquence entre les deux commutateurs.

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