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Phase Four
Phase Four
phasefour.io

Locations

El Segundo, CA, USA · North America

Size

11-50 employees

founded in

2015

Phase Four is a provider of electric propulsion (EP) for small satellites. The company was founded in 2015 to accelerate the advancement of its core differentiator, the Radio Frequency Thruster (RFT). The hallmark of Phase Four’s RFT is simplicity. Because the RFT omits a hollow cathode and high voltage electronics, three key improvements are realized: 1) a 10x materials cost savings versus legacy EP systems, 2) a significant decrease in the size of power electronics, and 3) propellant agnosticism. In a first for EP, the Phase Four RF thruster accomplishes this while achieving performance in the same thrust, specific impulse (Isp), and efficiency class as legacy plasma propulsion solutions.

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