H.G. Kosmahl

Analytical prediction and experimental verification of TWT and depressed collector performance using multidimensional computer programs

N. Stankiewicz, P. Ramins, J.A. Dayton, 1979, IEEE Transactions on Electron Devices.

How to quickly predict the overall TWT and the multistage depressed collector efficiency

H.G. Kosmahl, 1980, IEEE Transactions on Electron Devices.

Small-size 81- to 83.5-percent efficient 2- and 4-stage depressed collectors for octave-bandwidth high-performance TWT's

P. Ramins, H.G. Kosmahl, 1977, IEEE Transactions on Electron Devices.