Bellatrix Aerospace has developed and patented Microwave Electro-thermal Thrusters (MET), an advanced type of electric propulsion for satellites. This is an efficient electric propulsion system and has an unique distinction of being able to efficiently work on several propellants such as Argon, Xenon, Nitrogen, Ammonia and Water Vapour. MET is an electrode less (zero erosion), vortex stabilized thruster where microwaves are used to heat the propellant and produce a high temperature exhaust for in-space propulsion.