CesiumAstro
Demarch3 1 Promo

L-Band Array Antenna Links SDA’s Forces

March 17, 2023
AESA antennas on board LEOS send and receive multiple beams to provide service for multiple users throughout wide coverage areas.

CesiumAstro has been contracted by the Space Development Agency (SDA) of the U.S. Department of Defense (DoD) for its multiple-beam L-band actively electronically scanned array (AESA) antenna technology. The Link-16-compatible AESA antennas are needed to fulfill SDA’s Transport Layer mission requirements for U.S. and allied military forces in advance of a global satellite communications infrastructure, the Proliferated Warfighter Space Architecture (PWSA) global satellite network. The PWSA is being established as a low-earth-orbit-satellite (LEOS) constellation for DoD communications to and from space.

Shey Sabripour, founder and CEO of CesiumAstro, said: “This award spotlights the upcoming advancements in national security made possible by software-defined active phased array antennas. Providing SDA with a multibeam array increases architecture flexibility and capacity for enhanced theater coverage.” The multiple-beam operation supports an increased number of users with interconnectivity to multiple LEOS (see the figure). Trey Pappas, vice-president of business development at CesiumAstro, added: “Our modular solution scales to support a wide variety of missions. As a retired Marine Corps aviation officer, I greatly appreciate this capability as a game-changer to adapt the Transport Layer to fully support tactical users across the globe.”