Modified peniotron using a TE₁₁ rectangular waveguide cavity

This paper proposes a modified peniotron which is expected to increase both handling power and conversion efficiency compared with the original peniotron, and reports the analytical results or its operational characteristics using some computer simulations. Analytical results assuming the fundamental operation of ω₀ ≃ ω_c at l0GHz show that an extremely high transverse efficiency of nearly 100% may be attainable over a considerably wide range of output power. The tube uses a TE₁₁ rectangular waveguide cavity instead of the double-pair ridged waveguide cavity used for the original peniotron.