17. "Design of Forward Lighted Solar Concentrators for Space Applications," University of Georgia, Contract NAS8-32149. 18. "Evaluation of Solar Cells for Potential Space Satellite Power Applications," Arthur D. Little, Inc., Contract NAS9-15294, June 1977 (N77-30612). 19. "Development of a Directed Energy Annealable Solar Cell System," Spire Corporation, FR-20066, Subcontract to NAS9-15196, July 1978. Microwave Power Transmission 20. "Experiments in the Transportation of Energy by Microwave Beams," Brown, W. C., 1964 IEEE Intersociety Conference Record, Vol. 12, Part 2, 1964, pp 8-17. 21. "Free-Space Microwave Power Transmission Study, Combined Phase III and Final Report," W. C. Brown, Raytheon Report No. PT4601 , Contract NAS8-25374, September 1975 (N77-16619). 22. "Reception-Conversion Subsystem (RXCV) for Microwave Power Transmission System," Raytheon Report No. ER75-4386, JPL Contract No. 9533968, September 1975 (N76-15598). 23. "Microwave Power Transmission System Studies," Raytheon Company, ER75- 4368, Contract NAS3-17835, December 1975 (N76-15594 through 15597). 24. "Electronic and Mechanical Improvement of the Receiving Terminal of a Free-Space Microwave Power Transmission System," W. C. Brown, Raytheon Company, PT-4964, Contract NAS3-19722, August 1977 (N77-31613). 25. "Microwave System Studies Affecting SPS Rectenna Performance," Gutman, Ronald J., Research performed at JSC, August 1977. 26. "lonosphere/Microwave Beam Interaction Study," L. M. Duncan and W. E. Gordon, Rice University, Contract NAS9-15212, September 1977 (N77-33389). 27. "A Solar Power Satellite Transmission System Incorporating Automatic Beam Forming, Steering and Phase Control," LinCom, Inc., TR-7806-0977, Contract NAS9-15237, June 1978. 28. "Achievable Flatness in a Large Microwave Power Antenna," General Dynamics, Convair Div., Contract NAS9-15423, September 1978.
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