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国外最近设计成一种过去组合电路没有达到过的,工作频率最高、频带最宽的放大器.频宽达1000兆赫,工作频率自500～3000兆赫,为性能最佳的晶体管放大器的两倍,其性能相当于或超过许多行波管.由于采用了平衡放大电路,使放大器能具有如此宽的频带.各放大级中使用一对特性相同的晶体管,用3分只的定向耦合器把输入信号和输出信号相连,这
Recently abroad has been designed as a combination of the past did not reach the circuit, the highest operating frequency, the widest band of amplifier bandwidth of 1000 MHz, the operating frequency from 500 to 3000 MHz, the best performance of the transistor amplifier twice, its performance Equivalent to or more than a number of traveling wave tube.Because of the use of balanced amplifier circuit, the amplifier can have such a wide frequency band.Each amplifier stage using a pair of transistors with the same characteristics, with only 3 points of the directional coupler input signal and output Signal connected, this