Telecom Italia S.p.a.

Pirelli & C. S. P. A.

Telecon Italia S.p.a.

Telecom Itala S.p.a.

Daniele Disco

Maurizio Crozzoli

Claudio Borean

Paolo Gianola

Tiziana Tambosso

Francesco Coppi

Renato Scotti

A method for synthesizing an array factor for an array antenna based on a target shape of an array factor amplitude, includes: calculating an array factor phase based on the target shape of the array factor amplitude, and calculating array antenna weight coefficients using the least mean square method, where a target function used in the least mean square method is a complex function composed by the target shape of the array factor amplitude and the calculated array factor phase, wherein the calculated weight coefficients determine the array factor.

Method and system for synthesizing array antennas

The radiation characteristics of an antenna are made configurable including in the antenna a plurality of radiating elements and associating to each of said radiating elements a respective chain for processing the signal in transmission and/or reception with a module for weighting digital signals capable of applying to a digital signal at least a respective weighting coefficient and an antenna conversion set interposed between the module for weighting digital signals and one of the radiating elements of the antenna. The antenna conversion set operates on a digital signal on the side of the signal weighting module and on an analogue signal distributed on the processing chains associated to each radiating element of the antenna propagates (in transmission and/or reception), while respective weight coefficients are applied to said digital signal weighting modules. The weighting coefficients determine the radiation diagram of the antenna.

Antenna system and method for configuring a radiating pattern

A system for automating parking payment including user terminals having wireless communication equipment allowing access to a wireless communication network and including readers/writers of electronic tags, electronic tags to be carried by the users on their vehicles and into which the users can input information concerning a parking event by means of their terminals; and a parking service management center connected to said network.

System for and method of automating parking payment by using electronic tags

A method of performing digital beam forming on the radiation pattern of an array antenna using a plurality of antenna elements, each antenna element being coupled to a signal processing chain. A weighting phase is used in which at least a complex weight coefficient is applied to a digital signal in a corresponding signal processing chain. The digital signal is an intermediate frequency digital signal, and the weighting phase has the following steps: a) duplicating the digital signal into a first and a second digital signal; b) processing the first and second digital signals by multiplying the first and second digital signals respectively by a real and an imaginary part of the complex weight coefficient; applying a Hilbert transform to that signal which is multiplied by the imaginary part of the complex weight coefficient; and c) combining the processed first and second digital signals into a weighted digital intermediate frequency signal by subtracting the second signal from the first signal.

Method and system for performing digital beam forming at intermediate frequency on the radiation pattern of an array antenna

A telecommunication system uses a satellite antenna showing on the horizontal plane, a sufficiently narrow radiation lobe to discriminate two adjacent satellites and showing on the vertical plane, a sufficiently narrow vertical lobe to ensure an adequate gain, but sufficiently ample to enable the reception of a certain number of satellites in adjacent orbital positions, by land stations distributed over a certain meridian arc without the necessity for antenna elevation angle variations.

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Turin, Italy

Daniele Disco