Space Engineering and Technology Final Presentation Days hold on July 03 at ESOC in Germany.
During the final presentation, Callisto presented the X & Ka-Band Cryo cooled Feed developments for ESA. The presentation outlined the prototypes overview that comprises RF architectures & Chains, X-band High power junction (OMTJ) along with the cryogenic redundancy concept with a double sleeve.
The main objective is to improve DSA G/T for future deep space missions with + 1dB at X-band (8.4 – 8.5GHz) & + 2dB at Ka-band (31.8 – 32.3GHz). As a result, Cryo cooled feed prototypes have been successfully developed and tested with calculated G/T Gain of + 3 dB at Ka-band & +1.7 dB at X-band. Moreover, the Cryo redundancy is operating thanks to the double sleeve proven concept.