The proposed Japanese METS experiment is intended to have the dual function of performing an in-space Powersat-type experiment followed by SPS- type transmission experiments to verify microwave beam control to a ground target. These and other aspects of the METS experiment are described in more detail in Section 7.2. 4.5 Guideline Requirements 4.5.1 Initial Demonstrator The final list of requirements for the initial demonstrator are highly dependent on the launch option chosen and an iterative process with the cost/design of the experiment apparatus. However, based on the above discussion, reasonable requirements for the initial demonstrator might be as follows. Transmitted Power • For microwaves, the highest possible power densities are necessary to stimulate plasma interactions, ranging from 100 to 1,000 W. • For laser, power level is not so important and should be driven by the availability of space-capable laser technology, typically on the order of 10W. Transmission Distance * For microwaves, the distance is a strong function of the apertures and frequencies being used, as shown in Figures 4.5-1 & -2 for 12 GHz and 30 GHz respectively. However, a distance of one order of magnitude
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