第5章频率响应 R RC‖R2=R ube ri J jaC us U (5-29) J 1+JOR'CL OC L第5章 频率响应 (5―29) s o L H uIs o L L o s H uIs L o m b e o ce C L L U j R C j A U j C R j C U U j A U g U R R r R R R        +  +  =  + = +  = −  =  = =         1 1 1 1 1 1 1 0 1