Space (METS), Space Tether Experiments (STEX), Autonomous Satellite Retrieval Experiment (ASREX) and Laser Propulsion Experiment (LPE). Japan External Trade Organization, Solar Power Satellite R&D in Japan, New Technology Japan, 1991 Japan Power Satellite (JPSAT) JPSAT, formerly known as Power Supplying Satellite (PSS), is a feasability study to build on the results of METS in order to design a larger scale solar power satellite, providing from tens to hundreds of kW. This power would be transmitted to customer satellites at 24GHz. The design is modular, with each small module integrating solar cells, FET amplifier and a micro-strip transmitter. Together, these transmitters will form a full phased array. Matsumoto, H. et al, A feasability study of power supplying satellite (PSS) SPS ‘91. Power from Space, Soci6t6 des Ing^nieiurs at Scientifiques de France, p. 375,1991 Demonstration of microwave power transmission in space (1991) This is a three phase plan. The first phase is for an internal shuttle-based experiment, with a rectenna at the end of the Shuttle remote manipulator receiving power at 2.45GHz from an antenna located in the cargo bay. The second phase is for a similar experiment carried out with a free-flyer and the third using a free-flyer but utilising higher frequency transmission (35GHz) to transfer more power with smaller antennae. Chang K. et al, Demonstration of microwave transmission in space, SPS *91. Power from Space, Socidt^ des Ing^nieiurs at Scientifiques de France, p. 343,1991 Eurospace Powersat Study (1992) A study commissioned by ESA examining possible development of near-term, low cost ($10M for the first one) demonstrations of microwave or laser beaming from a satellite in low earth orbit. The end goal is to create a system to supply any increase in Space Station Freedom's power requirements. _____, Powersat Study, Eurospace, 1992
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