Allgon Ab

Allgen Ab

Alcatel Lucent

Thierry Bousquet

Olov Edvardsson

Brice Leclerc

Richard Bohannan

Olivier Marcé

Gianni Barone

Jean-Pierre Butin

The object of the present invention is to achieve an antenna for both receiving and transmitting circularly polarized RF signals which is smaller and lighter than prior art antennas as well as to achieve one antenna for both receiving and transmitting circularly polarized RF signals which has better characteristics for a given physical length than prior art antennas. This is achieved by providing an N-helical-filar antenna with N radiating elements coaxially arranged and defining a cylindrical envelope where each individual radiating element is capacitively coupled to another radiating element.

Antenna device comprising capacitively coupled radiating elements and a hand-held radio communication device for such antenna device

The object of the present invention is to achieve an easily mounted antenna device for receiving and/or transmitting circular polarized RF signals in at least one and preferably two frequency bands with a well defined interface towards the circuitry in the hand-held mobile communication device. This is obtained by providing N radiating elements where N is an integer greater than one, a support means arranged to support said radiating elements, a housing, and at least one connection member arranged to be easily connectable to a circuitry on a first printed circuit carrier arranged in said hand-held mobile communication device. Further more, providing at least one phasing network comprising N first ports arranged to be connected to said radiating elements and at least one second port arranged to be connected to said connection member, said phasing network being mounted to said support.

Antenna device comprising feeding means and a hand-held radio communication device for such antenna device

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Clamart, France

Thierry Bousquet