MULTIRACS
| Reference number | |
| Coordinator | Chalmers Tekniska Högskola AB - Chalmers Tekniska Högskola Inst f Elektroteknik |
| Funding from Vinnova | SEK 14 999 992 |
| Project duration | May 2025 - April 2028 |
| Status | Ongoing |
| Venture | Eureka cluster co-funding |
Purpose and goal
The MULTIRACS project is focused on creating an innovative and multi-functional transceiver and antenna front-ends that operate within the emerging FR3 frequency band (7-24 GHz), for which optimal technical solutions have not been completely identified yet. The transceiver and RF front-end consists of predominantly digital functionality, innovative RF circuits and high isolation filtering antennas, providing wide reconfigurability for various scenarios and usage cases.
Expected effects and result
The expected results from the project include the following: Energy efficient RF systems in upper mid-band spectrum (7-24GHz) solution includes highly adaptive 3D antenna arrays with integrated RF as well mixed signal circuitry. which also incorporate unique filters for reducing out-of-band emissions and enabling high capacity full-duplex communication within the band of interest.
Planned approach and implementation
The project consists of seven work packages. Our goal is to develop an innovative, multi-purpose radio transceiver that offers significantly more reconfigurability than conventional ones. The transceiver is fully digital, meaning each RF chain concludes with a digital-to-analog / analog-to-digital converter. Analog radio frequency circuits are implemented on CMOS and III/V platforms, with each radio frequency channel fitted with a dedicated filter to suppress out-of-band interference.