ULTRA HIGH POWER TRANSMISSION LINE TECHNIQUES.
GENERAL ELECTRIC CO SCHENECTADY N Y ADVANCED TECHNOLOGY LABS
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Systematic procedures were developed for selecting optimum waveguide configurations and designing waveguide components that will operate at high levels of peak and average power in the frequency range 1-10 gigacycles. In particular, the feasibility was investigated of designing compact components such as bends, couplers, power dividers, tapers, and mode absorbers in waveguides having cross section dimensions in the range 1.5 to 2.5 free space wavelengths. The results of studies of the dissipation and mode conversion losses and high power handling capability of long runs of oversized waveguide are presented. The results of a theoretical and experimental study of the required tolerances for flanges in oversized waveguide are presented. The results of a theoretical and experimental study of the required tolerances for flanges in oversized rectangular waveguide are also presented. Theoretical designs are discussed for system components such as tapers, bends, directional couplers, mode absorbers and pressure windows. Low power and high power test results are presented for tapers, bends, and a -20 db directional coupler. Author