Thomson-Csf

Kamel Chabani

Julien Prevot

Denis Duquenoy

Roger Duquenoy

Regis Le Navenec

Michel Courgeon

The invention pertains to a gyromagnetic device such as an insulator, operating at ultra-high frequencies (1-40 GHZ). The assembling of gyromagnetic devices requires high-precision positioning, generally obtained by bonding. In the isolator of the invention, the conducting core and the two ferrite wafers are held by two internal ground plates which form a positioned assembly, one of the plates being provided with tongues which position the parts and which fit into slits in the other ground plate. The assembling is done by stacking, inside the casing, a pressure washer, the magnet, the pre-positioned assembly and the base plate, and by closing the device with a single electric weld.

Method for assembling a miniaturized gyromagnetic device

A miniaturized and integrated gyromagnetic device in which a center conductor is mounted between a pair of dielectric wafers and ferrite conductors to define a circular inner configuration. A pressure washer is welded to a square casing and mounts a magnet, the wafers, ferrite conductors and a pair of ground plates to absorb thermal expansion during operation.

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Montreuil, France

Kamel Chabani