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ESA Open Invitation to Tender: 1-11431
Open Date: 21/07/2022 17:12 CEST
Closing Date: 29/09/2022 13:00 CEST

Receive architectures based on active antennas with digital beamforming capabilities are becoming abackbone for future spaceborne radars in Ka-band, for instance weather radars, fast scanning altimeters andpotentially future earth explorers. However, a highly stable receive frontend is key for the intendedapplications which drives the design and needs to be verified by measurement. This activity aims to improvephase stability as well as amplitude and phase accuracy by 20%. In this activity, such a highly stable receive front-end shall be designed, breadboarded and tested. Most critical is the phase stability in order to guarantee high beam pointing stability. Also, high amplitude and phase accuracy among channels is required. In addition, calibration aspects - in particular on-board - shall be addressed. Direct-conversion as well as heterodyne receiving architectures shall be assessed and judged regarding expected performance and technological feasibility. The finally selected architecture shall be breadboarded and comprise - as a minimum - 8 channels with all critical elements. The resulting end-to-end capabilities for selected key applications shall be assessed and verified by measurement. The activity encompasses the following tasks:- Survey of the state of the art receiver technologies- Trade-Off and preliminary design- Detailed and breadboard design- Manufacturing and measurement- Conclusion and development roadmap.Procurement Policy: C(1) = Activity restricted to non-prime contractors (incl. SMEs). For additional information please go to this link.

Directorate: Directorate of Tech, Eng. Quality
Estabilishment: ESTEC
ECOS Required: No
Classified: No
Price Range: > 500 KEURO
Authorised Contact Person: Franziska Erkelens
Initiating Service: TEC-EFP
IP Measure: C1
Prog. Reference: E/0901-01 - Technology Developme
Tender Type: Open Competition
Technology Keywords: 6-D-III-EO Instruments
Products Keywords: 2-L-1-a-Omnidirectional, Helix, Horn, Parabolic, Phased Arrays / Platform vs Payload

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