Mobile radiotelephone antenna array with adjustable directional characteristic

Abstract

The present invention comprises a device for the reception and transmission of electromagnetic waves, the device being well suited for very complex radiation diagrams while remaining within predefined transmission power levels. This is effected by an antenna structure and a driver logic circuit which are provided for the transmitting elements in such a way that an individually presettable directional and/or angular limitation of the basic transmitting power to maximally permitted transmitting powers in selectable directions and in particular in selectable solid angles is provided. Accordingly, the radiated transmitting power for determined directions and/or determined solid angles deviates downwards from the normal in the remaining directions and/or solid angles radiated basic transmitting power. The antenna is thereby easily calculable in so far as determined directions and/or solid angles are assigned to certain antenna pieces and preset values for the maximally permitted transmitting power are given predefined for these antenna pieces and therefore the maximally preset values for the transmitting power cannot be exceeded towards this direction and/or this solid angle.

Dependencies are inferred from the claim text.