GANSAT - Gan Powered Ka-Band High-Efficiency Multi-Beam Transceivers for Satellites

Custo Total
Custo Total 3.479.039 €
Contribuição UE
Contribuição UE 2.497.606 €
Data de Início Projecto
Data de Início Projecto 01/10/2013
Coordenador Científico
Coordenador Científico Rodolfo Martins ( - Evoleo Technologies, LDA
Duração 36 meses
Website do Projecto
Website do Projecto
The  GANSAT  project  will  demonstrate  that  GaN  (Gallium  Nitride)  based SSPA (Solid State Power Amplifier) will be able to provide higher power at Ka band, (microwave band c covers the frequencies of 26.5–40 GHz) than amplifiers  based  on  traditional  Silicon  or  Gallium  Arsenide technologies. 
This  will  be  achieved  by  exploiting  the  recent  development  in  GaN technologies,  high-efficiency  power  amplifier  design  techniques,  power combining  technologies  (solution  to overcome  limitations  on  power amplifier technologies) and active array antenna technologies.
It is expected that GANSAT will deliver a power output of several hundred Watts at the Ka band. This will be a significant step beyond the state of the art, and will open the door for GaN-based SSPA for space applications such as satellite communications, DBS (Doppler beam Sharpening) or SAR (Synthetic Aperture Radar). Due to the high power density of GaN devices, the system will have several advantages such as compact size, low mass and low cost. This is extremely useful for low-cost small satellites where the  physical  size,  mass,  power  consumption  and cost  are  major restrictions. The GaN amplifier will also be useful for large satellites.
Resultados do Projecto
Resultados do Projecto
The  project  addresses  challenges  in  high-frequency  high-power  satellite radio transceivers, and targets significant TRL evolution towards: 
-  Enhanced  robustness  and  functionality  of  radio  transceivers  in  the  Ka band; 
-  Space qualification of GaN Monolithic Microwave Integrated Circuits; 
-  High-efficiency high-power multi-beam active antennas; 
-  High-efficiency high-linearityPower Amplifiers; 
-  New linearization techniques.
EFACEC Engenharia e Sistemas SA - Portugal 
Forschungsverbund Berlin E.V. - Alemanha 
University of Kent - Reino Unido 
Astrium SAS - França 
Mier Comunicaciones SA - Espanha
Instituto de Telecomunicações - Portugal