SWIFT-TacSATCOM:: Tactical UHF and K-Band SATCOM

Period of Performance: 05/26/2016 - 05/25/2017


Phase 2 SBIR

Recipient Firm

Tethers Unlimited, Inc.
11711 N. Creek Pkwy S., Suite D113 Array
Bothell, WA 98011
Firm POC
Principal Investigator


To better meet the needs of soldiers, the Army seeks to provide over-the-horizon tactical satellite communications using a soldiers standard issue radio at UHF or mobile SATCOM terminals at K-band. Traditional relay satellites in geosynchronous orbits are unable to meet this need because they are too distant from the smaller terminals relatively weak transmitter and low gain antenna. A cluster of small relay satellites deployed in low-earth orbit could conceivably meet this need with the added benefit of responsiveness. Leveraging a decade of experience developing high performance RF communications solutions for small satellites, TUI proposes to augment its proven SWIFT software-defined radio platform with broadband K- and Ka-band transceiver modules. Coupled with TUIs existing gimbal technology for pointing high-gain apertures, a small satellite in LEO will be able to provide data services in excess of 100 Mbps to mobile terminals such as those deployed for the WIN-T program.