Two-Beam Transmit Satellite Antenna for Limited Field-of-View (FOV)

The objective of this Phase I SBIR effort is to develop and demonstrate a low cost, low weight, two independent simultaneous transmit beam antenna for use in SATCOM systems like the Transformational Satellite Communications System (TSAT) downlink. The current MILSATCOM system supports one downlink antenna beam in the frequency band 20.2-21.2 GHz. The goal of TSAT is to transform communications so that every warfighter in the field has rapid access to information for decision-making purposes. In addition, TSAT will be required to move much more data like that associated with visible images and radar images as well as facilitate communications on the move, a feature none of the previous satellite constellations offered. In order to achieve this increased capability in the near future, the MILSATCOM capacity must be increased through the use of multi-band, multi-beam satellite antennas. The primary objective of this effort is to develop and demonstrate a simultaneous and completely independent two-beam transmit antenna that has the capability to support MILSATCOM down link.