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随着电子工业的发展,目前,越来越多的单位正在研制晶体管超高频大功率放大器,并且对高频率和大功率提出了更高的要求。大家知道,超高频大功率放大电路匹配网络的设计计算已经成为研制超高频大功率放大器的成败关键。目前,对于高频大功率放大电路匹配网络的设计大致采用下面三种方法. (1)在用计算机直接设计电子电路还未得到推广应用的条件下,人们不得不根据晶体管高频等效电路,在数学分析和解算的基础上,进行复杂的计算,多次重复,最后导出电路的各元件参数,并由实验调试修正。 (2)参考选取与设计要求相类似的电路,在实际的试验工作中,一边调试,一边确定电路的各元件参数。 (3)在已知晶体管特性参数的条件下,借助于阻
With the development of the electronics industry, more and more units are currently developing transistor UHF high power amplifiers, and put forward higher requirements for high frequency and high power. We all know that UHF high power amplifier circuit matching network design and calculation has become the key to the success or failure of the development of UHF high power amplifier. At present, the following three methods are generally used for the matching network design of high-frequency high-power amplifier: (1) Under the circumstance that the direct design of electronic circuits by computers has not been popularized and applied, people have to base on the high frequency equivalent circuit of transistors, On the basis of mathematical analysis and solution, the calculation is complicated, repeated many times, and finally the circuit component parameters are derived and modified by experimental debugging. (2) Reference Select the circuit with similar design requirements, in the actual test work, while debugging, while determining the circuit components of the parameters. (3) With the known characteristics of the transistor parameters, with the help of resistance