Antenna optimization and cost consideration for the Solar Power Satellite microwave systemThe sizing, criteria, cost analysis, and optimized taper of the Solar Power Satellite (SPS) transmitting antenna are discussed. The sizing parameters considered were a thermal limit of 23 kW/sq m in the antenna, a peak power density of 23 mW/sq cm in the ionosphere, and cost effectiveness. Cost schedules and equations are presented for the SPS, and four antenna tapers are analyzed and compared, including the reference 10 dB Gaussian taper. An even powered quadratic series is formulated to minimize electricity cost and stay within thermal and ionospheric power level limits. The optimized Johnson Space Center taper is found to display the lowest energy costs, 4% below the 10 dB Gaussian, and can deliver 5.69 GW at 45.4 mills/kWh to the grid. Further studies are indicated for the optimal antenna and rectenna sizes
Document ID
19820028209
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kerwin, E. M. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Suddath, J. H. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Arndt, G. D. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: In: Intersociety Energy Conversion Engineering Conference