由于变容管调频固态源具有体积小、功耗低、使用寿命长等优点,因而是调频雷达比较理想的微波固态源.然而用变容管调频时微波固态源常呈现非线性调频.随着调频范围的扩大,非线性调频越严重.它将导致调频雷达混频器输出的差频信号呈非线性而影响 Due to its small size, low power consumption and long service life, the varactor FM solid-state source is an ideal microwave solid-state source for FM radar.However, the microwave solid- FM range expansion, the more serious non-linear FM.It will lead to the frequency difference of the FM output signal mixer is nonlinear and affect