TABLE 20 MICROWAVE POWER GENERATION, TRANSMISSION, AND RECTIFICATION ISSUES Major Areas of Work Status Development Goal Basis for Improvement D.C. Power Transmission, and Distribution Normal Normal Normal* Microwave Beam Approach D.C. on orbit/D.C. on ground = 54% (expected 70% Design optimization Transmitting Antenna Assembly with current technology) Early concept Passive control of structure Integration of known technologies First Level of Integrated Assembly (Subarray) Schemes available Electronic control of phase front Fundamental building block Integration of microwave converD.C. to Microwave Conversion (Device) Microwave/DC = 85% 90% noise and harmonics sion devices, filters, and waveguides Design optimization and incorporaRFI high Compatible with 60-kV tion of filter Local Collection Rectification & Filtering DC/Microwave rectificaoperation 90% Design optimization and materials Physical Arrangement of Rectenna Elements tion = 75% Normal* Normal* selection Normal* Integration of Switchable Assemblies Normal* Normal* Normal* Interface with User Network Normal* Normal* Normal* Local & Network Power Distribution, Cond. & Ctl. Normal* Normal* Normal* Ground-Based Flight System Monitoring & Control Active ground monitoring Acquisition establishment Open circuit before Amplitron, if and control and control of phase front necessary Site Definition Early concept High ecological compat Advanced planning for sites and * Normal — No extraordinary information is identifiable at this time. (See Table 21). ibility distrib'n grids
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