The detector (106) which generates the detector signal (107) which is proportionate to the average

摘要

(57) Abstract The traveling-wave-tube amplifier which possesses the even power limiter and is linearized is disclosed. This device includes the even power limiter with the purpose which prevents the fact that it operates with the output power which is higher than the operating point whose TWT is necessary. The device peak power of input signal 102 and in the detector following the detector signal 107 which, is proportionate to the average power of input signal 102, 106 which is generated substantially unrelated dynamically and that detector signal 107 input signal 102 possesses with the attenuator 110 which the detector 106 which is attenuated dynamically and amplifier 110 is joined. With the limiter, TWT optimizes the performance in the necessary operating point, furthermore makes that high efficiency is obtained possible, amplifier 110 loses the necessity to make size for the power level which, is larger than the necessary operating point decreases the price and complexity of the system. The limiter while to make that peak power of period passes briefly low in the loss possible by limiting average power, the linear performance of TWT without degradating conservation TWT.