| 摘要 |
<P>PROBLEM TO BE SOLVED: To be able to use an air-core coil instead of a choke coil. <P>SOLUTION: A lightning protection circuit composed of a varistor ZNR and a series circuit having a coil L3 and capacitors C2 and C3 is connected between the middle of an LPF 3 constituting an FM/VHF circuit and the ground. Since a BS/CS circuit is isolated by an LPF 1 and an LPF 2, the coil L3 can be configured by an air-core coil. <P>COPYRIGHT: (C)2013,JPO&INPIT |
