Figure 13-5. Received Power Density 13.3.4 PHASE HI A full two axis implementation is achieved in Phase III (Figure 13-3) with expansion of the Transmitting Array to 18M by 18M. The subarray dimensions planned for the operational system are 18 M x 18M; an average of two amplitrons per 2M x 2M subarray is planned for a total output of 2 x 81 subarrays x 5 kW / subarrays = 810 kW. Amplitrons can be arranged so that illumination taper could be varied and efficiency and quantization effects examined. Maximum density would be eight tubes per subarray as in Phase II. The Transmitting Array would be mounted on the quadrapod at the front of the dish, and the Receiving System, including a Rectenna Array of significant dimensions, would be located at a larger distance than in earlier phases. A potential site 7 km to 8 km distant is shown on the topographic map of Figure 13-6. The rectenna array shown in Figure 13-7 is sized to exhibit properties of height and spacing, and of integration to a voltage (~1 kV) sufficient for a proper interface with a power load and for demonstration of RFI properties.
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