Development of long life, low noise TWT´s giving 100 mW in S, C, X, and Ku-band 5 watts in X-band

These papers describe a line of 100 mW low-noise amplifiers for S--, C--, X--, and Ku-band and a low-noise, 6 watt X-band TWT all designed for long life. There is a need for high dynamic range, low-noise preamplifiers, capable of amplification with low-intermodulation, cross-modulation, AM-PM conversion, and minimal large signal capturing effects. This need can be met by the new 100 mW amplifiers described in the first part of the paper.