FIGURE 1. Scattered Microwave Power Due to Electrical and Mechanical Errors 1. Random - due to errors in the RF receiver/conjugation electronics, power tubes, ionospheric perturbations on the uplink pilot beam signal, subarray misalignment, and errors in the upper levels of the phase reference distribution system within the antenna. These errors scatter the main beam power and result in higher side lobe levels. 2. Correlated - due to errors in the first and second levels of the reference distribution system within the antenna. These errors produce a main beam pointing error of approximately 25 meters/ degree of correlated error. In summarizing the phase error effects, 10° of error produce 188 MW of scattered power and a maximum beam misalignment of 250 m from rectenna foresight.
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