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A high output power gyro-traveling wave tube (Gyro-TWT) on Ku band is designed and hot tested. The experiment test presents a 420kW output power, more than 1.6GHz (10%) −1dB bandwidth, about 35dB saturated gain and 23% efficiency in a stable working condition. To increase the power capacity TE01 mode is chosen as the working mode, and a 68kV 27A beam is used to generate the high output power. A high...
Design techniques and experimental results are presented on a Ku-band ${\rm TE}_{11}$ mode gyro-traveling wave tube. The hot test of this amplifier gives more than 153-kW output power, 2.3-GHz bandwidth (14%), 41-dB saturated gain, and 20% efficiency driven by a 63 kV, 12-A electron beam with a pitch angle $({\rm v}_{t}{\rm v}_{z})$ of 1.2, and velocity spread of 5%. A linear polarized ${\rm TE}_{11}$ ...
The small-signal theory of the gyro-TWT, a pinch-point analysis based on the theory of Briggs and bers combining the cold analysis of the dielectric-loaded waveguide are employed to analysis the threshold current of the operating mode and critical oscillation .The analysis concludes the improvement of the dielectric loss, through altering the load condition, can enhance the threshold current and critical...
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