采用MRF8P9040N的功率放大器设计

flexible0793

想问问各位大佬们，ADS2011，徐兴福教程里面的功率放大器设计案例里面，对场效应功率管MRF8P9040N进行ADS直流偏置点扫描的时候，ADS软件报错：        Model `FSL_MRF8P9040N_FET2.FET2M1' (defined in file 'H:/Program Files/workspace/LESSON9/960_WORK/MRF8P9040N_Level2_Rev2_DK//circuit/models/fsl_MRF8P9040N_pkg_netlists.net' around line 43):  `FSLRFPK_FET2_v1' is an undefined primitive device.
                              `FSL_MRF8P9040N_FET2.FSL1' is an instance of an undefined model `FET2M1'.这是怎么回事儿呢？？？？？？