Leica Geosystems Ag

Bittium Wireless Oy

Hexagon Geosystems Services Ag

Tuomo Haarakangas

Pascal Gohl

Garance Bruneau

Ilkka Heikura

Ilkka Uhari

Fabio Diem

Esa Purkunen

A GNSS antenna system for receiving GNSS signals in the L1 and L2/L5 frequency band, and to an unmanned aerial vehicle (UAV) comprising the GNSS antenna system.

GNSS antenna system for receiving multi-band GNSS signals

A quadrifilar helical antenna for communicating in a plurality of different frequency bands comprises at least two ports. Each port is operationally coupled with a port-specific set of helical filars, the port-specific set of filars including at least one band-specific filar for each of said plurality of the different frequency bands. At least two of the band-specific filars, the band-specific filars belonging to different band-specific filars and different port-specific sets adjacent to each other, have mutual coupling between the ports, the mutual coupling resulting in a destructive phasing of the frequency bands between the at least two of the band-specific filars.

Quadrifilar helical antenna for communicating in a plurality of different frequency bands

Growing community of inventors

Oulu, Finland

Tuomo Haarakangas