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Earley, L.M.

Paper Title Page
THP84 Design of a 300 GHz Broadband TWT Coupler and RF-Structure 794
 
  • F.L. Krawczyk, F.E. Sigler
    LANL/LANSCE, Los Alamos, New Mexico
  • B.E. Carlsten, L.M. Earley
    LANL, Los Alamos, New Mexico
  • J.M. Potter
    JP Accelerator Works, Inc., 2245, Los Alamos, NM
  • M.E. Schulze
    GA, Los Alamos
  • E. Smirnova
    MIT/PSFC, Cambridge, Massachusetts
  
  Recent LANL activities in millimeter wave structures focus on 94 and 300 GHz structures. They aim at power generation from low power (100–2000 W) with a round electron beam (120 kV, 0.1–1.0 A) to high power (2–100 kW) with a sheet beam structure (120 kV, 20 A). Applications cover basic research, radar and secure communications and remote sensing of biological and chemical agents. In this presentation the design and cold-test measurements of a 300 GHz RF-structure with a broadband (>6% bandwidth) power coupler are presented. The design choice of two input/output waveguides, a special coupling region and the structure parameters themselves are presented. As a benchmark also a scaled up version at 10 GHz was designed and measured. These results will also be presented.