Tenders Are Invited For High Isolation Single Aperture Transmit-Receive Ka-Band Flat Panel Antenna To Enable Full-Duplex Operation

Tenders are invited for High Isolation Single Aperture Transmit-Receive Ka-Band Flat Panel Antenna to Enable Full-Duplex Operation - Expro+ HIGH ISOLATION SINGLE APERTURE TRANSMIT-RECEIVE KA-BAND FLAT PANEL ANTENNA TO ENABLE FULL-DUPLEX OPERATION - EXPRO+ Tender Action Number: 1-13384 Activity Number: 1000045924 Clarification Request Deadline 22/05/2026 13:00 CET Closing Date Extension Request Deadline 22/05/2026 13:00 CET Announcement Date 26/03/2026 Last Update On 16/04/2026 13:26 CET Update Reason Tender Action Issued Objective: Enabling full duplex operation for Ka-band satcom terminals based on single Tx/Rx radiating aperture flat panel antennasby providing high isolation between the transmit and receive ports.Description: Satcom terminals at Ku or Ka based on single Tx/Rx aperture typically provide half duplex services, which reduces the available data rate. To enable full-duplex operation, high isolation between the Tx and Rx chains has to be implemented. While significant advancements in satcom terminal technologiesparticularly flat panel antennas with single aperture for transmit and receivehave been made outside Europe, the availability of such technologies in Europe remains limited. The activity focuses on the on the definition and implementation of development of a flat panel antenna operating in the SATCOM Ka band based on a single transmit and receive shared aperture, providing sufficient isolation between the Tx and Rx ports to enable full-duplex operation. The transmit and receive chains function at different frequencies. Therefore, a radiating aperture supporting both frequency bands will have to be designed. The isolation between the Tx and Rx ports will have to be provided at antenna element and/or feeding line level. This activity encompasses the following tasks: - Consolidation of the requirements, - Trade-off analysis among several solutions and identification of the most promising antenna configuration, - Design and detailed analysis, - Manufacture and testing of a representative simplified antenna Breadboard Read less Directorate Directorate of Tech, Eng. Quality Estabilishment ESTEC Open Date 16/04/2026 13:26 CET Closing Date 29/05/2026 13:00 CET ECOS Required No Classified No Price Range 200-500 KEURO Authorised Contact Person Mireia Morera Initiating Service TEC-EFA IP Measure N/A Prog. Reference E/0901-01 - Technology Developme Tender Type Open Competition Open To Tenderers From AT+BE+CH+CZ+DE+DK+EE+GR+ES+FI+FR+GB+HU+IE+IT+LU+NL+NO+PL+PT+RO+SE+SI Technology Keywords 7-A-III-Array Antennas and Standalone Radiators Products Keywords 2-L-1-a-Omnidirectional, Helix, Horn, Parabolic, Phased Arrays / Platform vs Payload Tender Link : https://esastar-publication-ext.sso.esa.int/ESATenderActions/filter/open