Other

Airbus Defence and Space Sas

Tesat-spacecom Gmbh & Co Kg

Klaus Schieber

Ulrich Poppe

Norbert Klein

Martin Kirsch

Coraline Simon

Indra Ghosh

An active antenna is disclosed including a passive portion of an antenna array extended at one end by a plate in which apertures are formed, at least one active assembly for transmitting radiofrequency RF waves, called assembly, through said apertures, each assembly including a first row of active modules facing apertures of the plate, a second row of active modules facing apertures of the plate and attached to the first row of active modules, a beam attached to the plate and held clamped between the first and second rows of active modules, a heat-transfer duct in contact with the first and second rows of active modules and jutting out on either side of said first and second rows of active modules.

Active antenna especially for the space-technology field

The invention concerns a tunable cavity resonator that comprises a resonator body ( ) defining a cavity ( ), a tuning plate ( ) whose position with respect to the resonator body ( ) is modifiable and which influences the resonance frequency (&ohgr; ) of the cavity resonator, and an adjustment device ( ) for mechanically changing the position of the tuning plate ( ), which is characterized in that a conversion ratio mechanism ( ) couples the adjustment device ( ) to the tuning plate ( ) in terms of movement and converts a linear excursion (&Dgr;x ) generated by the adjustment device ( ), at a predefined ratio (U), into a reduced linear excursion (&Dgr;x ) that acts on the tuning plate ( ), the conversion ratio mechanism ( ) comprising a first spring element ( ) whose end toward the adjustment device is deflectable with the linear excursion (&Dgr;x ) generated by the adjustment device ( ), and a second spring element ( ) which impinges with an opposing force on the end of the first spring element ( ) remote from the adjustment device.

Tuneable cavity resonator

Growing community of inventors

Backnang, Germany

Klaus Schieber