f、直接接入信号源和负载的LC并联谐振回路 R C . R CSL R R 谐振频率:=-1 (C=C+CO 2π√LC 谐振阻抗:R=RR。/R R (Rn=QoL≈Q 有载品质困数:g=0L=RaC 通频带:B,=f、直接接入信号源和负载的LC并联谐振回路 C L r CL R L Rs s I Ro C L CL R L Rs s I C´ L R´ o s I 谐振频率: LC f o = 2 1 (C´=C+CL) 谐振阻抗:Re=Rs //Ro //RL ) C Q (R Q L o o o o o = = 有载品质因数: R C L R Q e o o e e = = 通频带: e o Q f BW0.7 =