| List of Acronyms |
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xiii | |
| Preface |
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xv | |
| Authors |
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xvii | |
| 1 Introduction |
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3 | (14) |
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3 | (2) |
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1.2 HPM Operating Regimes |
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5 | (7) |
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1.3 Future Directions in HPM |
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12 | (2) |
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12 | (1) |
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13 | (1) |
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14 | (1) |
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14 | (3) |
| 2 Designing High Power Microwave Systems |
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17 | (24) |
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2.1 Systems Approach to High Power Microwaves |
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17 | (2) |
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19 | (1) |
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2.3 Linking Components into a System |
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20 | (7) |
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21 | (2) |
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23 | (1) |
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24 | (2) |
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2.3.4 Mode Converter and Antenna |
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26 | (1) |
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27 | (2) |
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2.5 Scoping an Advanced System |
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29 | (10) |
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2.5.1 NAGIRA: Prototype for the SuperSystem |
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30 | (1) |
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2.5.2 Constructing a SuperSystem |
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31 | (1) |
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2.5.3 Antenna and Mode Converter |
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32 | (1) |
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2.5.4 Backward Wave Oscillator |
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33 | (1) |
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2.5.5 Pulsed Power Subsystem |
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34 | (5) |
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39 | (1) |
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39 | (1) |
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39 | (2) |
| 3 High Power Microwave Applications |
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41 | (52) |
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41 | (1) |
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41 | (20) |
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3.2.1 General Aspects of HPM Weapons |
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43 | (5) |
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48 | (1) |
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3.2.3 First-Generation HPM Weapons |
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49 | (3) |
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49 | (1) |
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3.2.3.2 Neutralizing Improvised Explosive Devices |
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50 | (1) |
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51 | (1) |
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52 | (1) |
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3.2.5 Electromagnetic Terrorism |
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53 | (2) |
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55 | (1) |
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56 | (1) |
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3.2.8 HPM Effects on Electronics |
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57 | (4) |
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61 | (1) |
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61 | (1) |
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62 | (5) |
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67 | (10) |
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67 | (4) |
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3.5.2 Launch from Orbit into Interplanetary and Interstellar Space |
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71 | (2) |
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3.5.3 Control of Large Space Structures |
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73 | (2) |
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3.5.4 Power Beaming Systems Cost |
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75 | (2) |
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77 | (1) |
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77 | (4) |
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81 | (1) |
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3.7 Particle Accelerators |
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81 | (5) |
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86 | (1) |
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87 | (6) |
| 4 Microwave Fundamentals |
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93 | (58) |
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93 | (1) |
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4.2 Basic Concepts in Electromagnetics |
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93 | (2) |
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95 | (15) |
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4.3.1 Rectangular Waveguide Modes |
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97 | (4) |
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4.3.2 Circular Waveguide Modes |
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101 | (3) |
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4.3.3 Power Handling in Waveguides and Cavities |
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104 | (6) |
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4.4 Periodic Slow-Wave Structures |
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110 | (9) |
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4.4.1 Axially Varying Slow-Wave Structures |
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110 | (3) |
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4.4.2 Azimuthally Varying Slow-Wave Structures |
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113 | (4) |
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4.4.3 Metamaterials for Dispersion Engineering |
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117 | (2) |
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119 | (3) |
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4.6 Intense Relativistic Electron Beams |
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122 | (8) |
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4.6.1 Space-Charge-Limited Flow in Diodes |
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123 | (2) |
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4.6.2 Beam Pinching in High-Current Diodes |
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125 | (1) |
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4.6.3 Space-Charge-Limited Electron Beam Flow in a Drift Tube |
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125 | (2) |
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4.6.4 Fedosov's Solution for the Current Limit from a Magnetically Insulated Coaxial Diode |
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127 | (1) |
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4.6.5 Beam Rotational Equilibria for Finite Axial Magnetic Fields |
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128 | (1) |
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4.6.6 Brillouin Equilibrium of a Cylindrical Electron Beam |
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129 | (1) |
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4.7 Rotating Magnetically Insulated Electron Layers |
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130 | (2) |
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4.8 Microwave-Generating Interactions |
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132 | (8) |
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4.8.1 Review of Fundamental Interactions |
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132 | (1) |
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4.8.2 O-Type Source Interactions |
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133 | (4) |
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4.8.3 M-Type Source Interactions |
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137 | (1) |
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4.8.4 Space-Charge Devices |
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138 | (2) |
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4.9 Amplifiers and Oscillators, High- and Low-Current Operating Regimes |
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140 | (1) |
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4.10 Phase and Frequency Control |
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141 | (2) |
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4.10.1 Phase Coherent Sources |
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143 | (1) |
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4.11 Multispectral Sources |
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143 | (1) |
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144 | (1) |
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145 | (1) |
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146 | (5) |
| 5 Enabling Technologies |
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151 | (50) |
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151 | (1) |
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151 | (10) |
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5.2.1 Explosive Flux Compressors |
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156 | (3) |
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5.2.2 Linear Induction Accelerators |
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159 | (1) |
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160 | (1) |
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161 | (1) |
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5.3 Electron Beam Generation and Propagation |
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161 | (5) |
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161 | (4) |
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5.3.2 Electron Beam Diodes and Electron Beam Propagation |
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165 | (1) |
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5.4 Microwave Pulse Compression |
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166 | (4) |
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5.5 Antennas and Propagation |
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170 | (10) |
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170 | (2) |
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172 | (3) |
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5.5.3 Narrowband Antennas |
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175 | (4) |
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5.5.3.1 Compact High-Power Narrowband Antennas |
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178 | (1) |
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179 | (1) |
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180 | (7) |
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181 | (1) |
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181 | (1) |
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5.6.2.1 Heterodyne Detection |
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181 | (1) |
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5.6.2.2 Time-Frequency Analysis |
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182 | (1) |
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182 | (1) |
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183 | (1) |
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184 | (1) |
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185 | (2) |
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5.7 Computational Techniques |
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187 | (2) |
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189 | (5) |
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189 | (1) |
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190 | (2) |
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192 | (2) |
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194 | (1) |
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194 | (1) |
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194 | (2) |
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196 | (5) |
| 6 Beamless Systems |
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201 | (30) |
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201 | (1) |
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201 | (16) |
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201 | (3) |
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6.2.2 UWB Switching Technologies |
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204 | (6) |
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6.2.2.1 Spark Gap Switches |
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204 | (2) |
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6.2.2.2 Solid-State Switches-Non-Photoconductive |
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206 | (1) |
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6.2.2.3 Photoconductive Switches |
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207 | (3) |
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6.2.3 UWB Antenna Technologies |
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210 | (3) |
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213 | (4) |
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213 | (1) |
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6.2.4.2 Subhyperband Systems |
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214 | (1) |
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6.2.4.3 Hyperband Systems |
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215 | (2) |
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6.3 Nonlinear Transmission Lines |
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217 | (9) |
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6.3.1 NLTL Historical Overview |
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218 | (1) |
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6.3.2 Simplified Soliton Theory |
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218 | (3) |
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6.3.2.1 Derivation of the KdV Equation for LC Ladder Circuit |
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219 | (2) |
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221 | (1) |
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6.3.4 Nonlinear Dielectric Material |
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221 | (1) |
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6.3.5 Nonlinear Magnetic Material |
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222 | (1) |
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6.3.6 BAE Systems' NLTL Source |
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223 | (3) |
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226 | (1) |
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226 | (1) |
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226 | (1) |
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227 | (4) |
| 7 Relativistic Magnetrons and MILOs |
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231 | (50) |
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231 | (1) |
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232 | (1) |
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233 | (14) |
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7.3.1 Cold Frequency Characteristics of Magnetrons and CFAs |
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236 | (5) |
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7.3.2 Operating Voltage and Magnetic Field |
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241 | (2) |
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7.3.3 Characteristics of Magnetrons |
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243 | (4) |
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7.3.4 Summary of Magnetron Design Principles |
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247 | (1) |
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247 | (8) |
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7.4.1 Fixed-Frequency Magnetrons |
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248 | (3) |
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251 | (1) |
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7.4.3 Repetitive High-Average-Power Magnetrons |
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252 | (3) |
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7.5 Research and Development Issues |
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255 | (7) |
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7.5.1 Peak Power: Phase Locking Multiple Sources |
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256 | (5) |
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7.5.1.1 Efficiency: Transparent Cathode and Other Novel Cathode Topologies |
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257 | (1) |
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7.5.1.2 Efficiency: Limiting Axial Current Loss and Radial versus Axial Extraction |
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258 | (3) |
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7.5.2 Frequency Agility and Mode Switching |
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261 | (1) |
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7.6 Fundamental Limitations |
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262 | (5) |
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262 | (2) |
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264 | (2) |
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266 | (1) |
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267 | (4) |
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7.8 Crossed-Field Amplifiers |
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271 | (1) |
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271 | (2) |
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273 | (1) |
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274 | (7) |
| 8 BWOs, MWCGs, and 0-Type Cerenkov Devices |
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281 | (46) |
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281 | (1) |
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282 | (2) |
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284 | (15) |
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8.3.1 Slow-Wave Structure: Dimensions and Frequencies |
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287 | (2) |
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8.3.2 Addition of the Beam: Resonant Interactions for Different Device Types |
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289 | (4) |
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8.3.3 Start Current and Gain |
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293 | (3) |
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8.3.4 Peak Output Power: Role of Computer Simulation |
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296 | (3) |
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299 | (10) |
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301 | (2) |
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303 | (3) |
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306 | (1) |
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307 | (2) |
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8.5 Research and Development Issues |
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309 | (6) |
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310 | (2) |
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8.5.2 BWO Operation at Lower Magnetic Fields |
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312 | (1) |
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8.5.3 Axially Varying Slow-Wave Structures to Enhance Efficiency |
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313 | (1) |
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8.5.4 Phase Locking Multiple Devices |
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313 | (1) |
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8.5.5 Other 0-Type Sources: DCMs, PCMs, and Plasma-Filled BWOs |
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314 | (1) |
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8.6 Fundamental Limitations |
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315 | (2) |
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317 | (1) |
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317 | (4) |
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321 | (6) |
| 9 Klystrons and Reltrons |
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327 | (48) |
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327 | (1) |
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328 | (2) |
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330 | (12) |
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9.3.1 Voltage, Current, and Magnetic Field |
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330 | (1) |
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331 | (1) |
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331 | (3) |
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9.3.4 Electron Velocity Modulation, Beam Bunching, and Cavity Spacing |
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334 | (3) |
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9.3.5 Beam Bunching in Low-Impedance Relativistic Klystrons |
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337 | (1) |
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9.3.6 Circuit Modeling of Klystrons |
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338 | (3) |
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9.3.7 Reltron Design Features |
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341 | (1) |
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342 | (13) |
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9.4.1 High-Impedance, Near-Relativistic Klystrons |
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342 | (3) |
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9.4.2 High-Impedance, Relativistic Klystrons |
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345 | (2) |
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9.4.3 Low-Impedance Klystrons |
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347 | (5) |
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352 | (3) |
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9.5 Research and Development Issues |
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355 | (8) |
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9.5.1 High Power Multibeam and Sheet-Beam Klystrons |
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356 | (1) |
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9.5.2 Low-Impedance Annular-Beam Klystrons-Triaxial Configuration |
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357 | (3) |
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9.5.3 Low-Impedance Annular-Beam Klystrons-Coaxial Configuration |
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360 | (3) |
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9.6 Fundamental Limitations |
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363 | (3) |
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9.6.1 Pencil-Beam Klystrons |
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363 | (2) |
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9.6.2 Annular-Beam Klystrons |
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365 | (1) |
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366 | (1) |
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366 | (1) |
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367 | (3) |
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370 | (5) |
| 10 Vircators |
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375 | (24) |
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375 | (1) |
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375 | (1) |
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10.3 Vircator Design Principles |
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376 | (5) |
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10.4 Operational Features |
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381 | (3) |
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10.5 Double-Anode Vircators |
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384 | (3) |
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385 | (2) |
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387 | (2) |
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389 | (1) |
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390 | (1) |
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10.9 Phase Locking Vircators |
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391 | (2) |
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10.10 Applications and Limitations of Vircators |
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393 | (1) |
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394 | (1) |
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395 | (4) |
| 11 Gyrotrons, Electron Cyclotron Masers, and Free-Electron Lasers |
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399 | (36) |
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399 | (1) |
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399 | (17) |
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11.2.1 History of Gyrotrons and ECMs |
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400 | (1) |
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11.2.2 Gyrotron and ECM Design Principles |
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401 | (6) |
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11.2.3 Gyrotron and ECM Operational Features |
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407 | (8) |
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11.2.3.1 High-Average-Power Gyrotrons |
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407 | (1) |
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11.2.3.2 Relativistic Gyrotrons |
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408 | (3) |
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411 | (1) |
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412 | (3) |
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415 | (1) |
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11.3 Free-Electron Lasers |
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416 | (10) |
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416 | (1) |
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11.3.2 Free-Electron Laser Design Principles |
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417 | (7) |
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11.3.3 Operational Features of Free-Electron Lasers |
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424 | (1) |
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11.3.4 Outlook for Free-Electron Lasers |
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424 | (2) |
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426 | (1) |
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427 | (1) |
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428 | (7) |
| Appendix: High Power Microwave Formulary |
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435 | (12) |
| Index |
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447 | |