1 MPTS Concept 3 2 MPTS Functional Diagram 3 3 Comparison of Gaseous Absorption and Rain Attenuation 5 4 Transmission Efficiency - Molecular Absorption and Rain 5 5 Amplitron Assembly 6 6 Amplitron Weight/Cost/Efficiency Vs Frequency 6 7 Amplitron Weight and Cost Vs Power 6 8 MPTS 5 kW Amplitron Parameters 7 9 MPTS 5 kW Amplitron Power Budget 7 10 Efficiency Vs Output Power for Solenoid-Focused Klystron 8 11 Outline of 48 kW Klystron with Solenoid Focusing 8 12 MPTS 48 kW Klystron Parameters 9 13 MPTS 48 kW Klystron Power Budget 9 14 Microwave Power Beam - Idealized 10 15 Receiving Antenna Sizes for Truncated Gaussian Beam Tapers 10 16 Taper Effect on Pattern and Efficiency 11 17 Array-Subarray Organization 11 18 Subarray Size Considerations 12 19 Command and Adaptive Phase Front Control Concepts 13 20 Subarray Types 14 21 Alternative Array Types 14 22 Amplitron Thermal Model 15 23 Subarray Deflection Vs Size 15 24 SPS Incremental Cost Vs Subarray Size 17 25 Subarray L^ayout 17 26 Transmitting Antenna Pointing System 18 27 Rotary Joints 18 28 Antenna Structural Arrangement 20 29 Structure/Waveguide Interface 20 30 Comparison of Max Temp and Thermal Gradients 21 31 Structural Joints 21 LIST OF ILLUSTRATIONS
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