DIRECT-TO-DEVICE MULTIBAND ACTIVE ANTENNA IN FREQUENCY RANGE 1 (FR 1) (ARTES 4.0 SPL 5G/6G 5B.259) - EXPRO+

Direct-to-Device (D2D) for unmodified handsets, Machine-to-Machine (M2M) and Internet of Things (IoT) communications are rapidly becoming a key focus area for the satellite sector. Low Earth Orbit (LEO) satellite constellations with active antennas are well suited for a broad range of these services with low latency. UHF-, L- and S-Band are envisaged for D2D systems in FR 1. The multifrequency and generic aspect of future D2D payloads is only viable if the active antenna critical RF building blocks (multi-band Transmit / Receive radiating element, filtering and amplification stages) are available to meet the challenging multiband requirements. This activity will develop and test generic and multi-band building blocks of a FR 1 Transmit / Receive active antenna for LEO constellations. A modular active array scaled EM (as a minimum a 4x4 tile including Transmit / Receive radiating elements, filtering and amplification stages) shall be manufactured and tested for critical functions in a relevant environment.