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A G-band rectangular beam multi-gap Extended Interaction Klystron (EIK) with unequal-length gaps is proposed. The high-frequency features indicates that the designed model has wide frequency intervals with π mode, which has a good uniformity in field distribution with the maximum (R/Q)•M2. The PIC simulation shows a stable output power of 1378 W without oscillation in 218.9 GHz, with the efficiency...
The diamond pillbox window for W-band TWT has been designed in this article, which can cover the 75GHz-120GHz with a ultra-bandwidth over 40GHz. By simulating and optimizing in detail, the reflection coefficient (S11) less than −20dB and the VSWR less than 1.2 was obtained in the whole transmission bandwidth with no any oscillation observed. The influence of key structural parameter on the whole bandwidth...
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