The present invention provides a dual mode mobile terminal, the mobile terminal includes a CMMB dual-mode antenna built in dual-mode mobile terminal; CMMB protection network, connected with CMMB antenna includes a multi-stage circuit, which are connected in turn, at all levels in the circuit LC circuit of multi-stage cascade circuit or LC parallel circuit, both ends of the LC parallel circuit is connected between the before and after the two stage circuit, one end of the LC series circuit is connected between the before and after the two stage circuit and the other end is connected to the ground. According to the technical proposal provided by the invention, the interference between the multiple antennas in the built-in scheme of the CMMB antenna in the relevant technology is solved, and the interference of the multi-mode radio frequency signal to the CMMB signal can be reduced.
【技术实现步骤摘要】
【技术保护点】
１．一种双模移动终端，其特征在于，包括：中国移动数字多媒体广播ＣＭＭＢ天线，内置于所述双模移动终端中；ＣＭＭＢ保护网络，与所述ＣＭＭＢ天线相连接，包括：依次连接的多级电路，其中，所述多级电路中的各级电路为ＬＣ串联电路或ＬＣ并联电路，所述ＬＣ并联电路的两端连接在其前后两级电路之间，所述ＬＣ串联电路的一端连接在其前后两级电路之间，另一端接地。
【技术特征摘要】
【专利技术属性】
技术研发人员：朱大龙，胡易木，
申请(专利权)人：中兴通讯股份有限公司，
类型：发明
国别省市：94
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