论文部分内容阅读
设计射频放大器时,必须考虑电路的稳定性,这一点与低频电路的设计方法完全不同。由于反射波的存在,射频放大器在某些工作频率或终端条件下有产生振荡的倾向,不再发挥放大器的作用,因此必须分析射频放大器的稳定性,稳定性是指放大器抑制环境的变化(如信号频率、温度、源和负载等变化时),维持正常工作特性的能力。本文将主要探讨一种短波高线性射频功率放大器的设计。
When designing a RF amplifier, the stability of the circuit must be considered, which is quite different from the design method of the low-frequency circuit. Due to the presence of reflected waves, the RF amplifier tends to oscillate at certain operating frequencies or terminal conditions and no longer functions as an amplifier. Therefore, it is necessary to analyze the stability of the RF amplifier. Stability refers to the amplifier’s ability to suppress environmental changes Signal frequency, temperature, source and load, etc.), the ability to maintain normal operating characteristics. This article will focus on a short-wave high-linearity RF power amplifier design.