displaced subarray so that the required beam front is launched toward the receiving antenna. For a subarray of 18 meters by 18 meters, the maximum radiated power will be about 7 MW. FIGURE 7 MICROWAVE GENERATORS AND SPACE RADIATORS INSTALLED IN SUBARRAY Aluminum has been selected for the wave guides, which have an overall thickness of about 0.5 mm. The subarray is divided into five meter segments to limit the aluminum wave guide deflection over the 5-meter distance, which results in a beam power loss of less than 1% for the subarray. The receiving antenna is designed to intercept, collect, and rectify the microwave beam into a DC output as efficiently as possible. The DC output will be designed to interface with either high-voltage DC transmission networks or to be converted into 60 Hz AC. The receiving antenna consists of an array of halfwave dipole antennas which rectify the incident microwave beam. Each dipole has an integral, low-pass filter, diode rectifier and RF bypass capacitor. The dipoles are DC insulated from the ground plane and appear as RF absorbers to the incoming microwaves.
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