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This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 28 January 2010, surveys pulsed high-power microwave (HPM) source technology. It was produced under the Advanced Aerospace Weapon System Applications (AAWSA) program. It covers insulation, cathode materials, high-voltage switching, pulse generators, microwave sources such as magnetrons, gyrotrons and the Phoenix and Jolt sources, and antennas. The document concludes that progress depends on advances in cathodes, switching and insulation. It says compact ultrawideband antennas will remain difficult to build.
“The Times”17 pages
UNCLASSIFIED/, /FOR OFFICIO I 1!55 0111 YI Explosively Driven Generators ......................................................................... 16 Pulsed High-Power Microwave Sources ................................................................ 17 Pulsed Electron Beam Sources ......................................................................... 17 BWOs, TWTs, and RKAs .................................................................................... 17 Split-Cavity Oscillators ..................................................................................... 18 Virtual Cathode Oscillators ............................................................................... 18 Magnetrons ...................................................................................................... 18 Gyrotrons ......................................................................................................... 19 Impulse HPM Sources ...................................................................................... 20 SNIPER ............................................................................................................. 20 EMBL ................................................................................................................ 20 H-Series HPM Sources ...................................................................................... 20 The Phoenix HPM Source .................................................................................. 22 The GEM II HPM Source ................................................................................... 24 The Jolt HPM source ......................................................................................... 24 Mesoband Sources ........................................................................................... 24 HPMAntennas ...................................................................................................... 25 Narrowband Antennas ...................................................................................... 25 Wideband and Ultrawideband Antennas ........................................................... 27 Conclusion ............................................................................................................ 29 Figures Figure 1. Paschen Curve for Air ............................................................................ 13 Figure 2. Example of Marx Generator Circuit ........................................................ 16 Figure 3. Orion HPM Testing Facility ..................................................................... 19 Figure 4. Active Denial System With FLAPS Antenna ............................................ 20 Figure 5. H2 With Large TEM Horn and PGC Output .............................................. 21 Figure 6. Cross-Section Orawing of HS With Point Geometry Converter, Brewster Angle Window, and Extended-Ground-Plane Antenna ........................... 21 Figure 7. HS Output Section With the Point Geometry Converter Feeding an Extended-Ground-Plane Antenna Through a Brewster Angle Window ... 22 Figure 8. Phoenix Radiated Pulse at 8.5 Meters ................................................... 23 Figure 9. Phoenix Radiated Spectral Content ....................................................... 23 iv UNCLASSIFIED;C,FF8~ 8FFI@Itllt ~:!IE! 8HLY
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 37 pages are in the text index: search them above, or from the library's search.