Digital Multichannel AESA for EW and Directed COM Multifunctionality

Purpose and goal

Wideband digital antenna arrays are most likely key components in future airborne multi-functional radio systems. This project will study the architecture of wideband digital antenna arrays, including the underlying electronics. In this initial 1-year project, the studies will be mostly at a theoretical level. The aim is to define and to some extent initiate work around a broadband digital antenna array. Our ambition is to continue the defined work within the next NFFP period that follows this 1-year project.

Expected results and effects

The study will contribute to an increased knowledge and technology maturity for digital antenna arrays, both at KTH and at Saab. The result will accelerate the introduction of wideband, digital multi-channel AESA technology to the market. It will benefit both the Swedish defense capability and the competitiveness of Swedish industry. Through the project, a new collaboration between Saab as an industrial representative and KTH as a strong academic partner will also be initiated in a new technology area.

Planned approach and implementation

The project will study hardware architecture for digital arrays. Specific studies are, among others; interference suppression, synchronization and data management. Furthermore, a software model to describe a digital array will be implemented. Identified research questions will be raised and investigated during the next 4-year project. The project has a close connection to the NFFP8 project "Directed COM & EW by Digital multichannel AESA". Coordination will take place between the projects, among other things through a common reference group.