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近日,七二二所研制的QTA-SDM4型北斗船载天线实现1000套批量生产,并交付使用,获用户高度评价。QTA-SDM4型北斗船载天线是七二二所针对船用北斗/GPS卫星导航终端设备设计的一款双模四频天线,采用多层叠耦合单馈电技术,可覆盖北斗一代S频段、L频段,北斗二代B1频段和GPS系统L1频段四个频段,实现北斗一代卫星导航系统定位/发信功能、北斗二代/GPS卫星导航系统定位功能。
Recently, 722 developed QTA-SDM4 Beidou shipborne antenna to achieve 1000 sets of mass production, and delivered to use, highly praised by users. QTA-SDM4 Beidou Shipborne Antenna is a dual-mode quad-band antenna designed for 722 marine BeiDou / GPS satellite navigation terminal devices. It adopts multi-cascade coupled single-feed technology to cover Beidou Generation S band, L band, Beidou second generation B1 band and GPS system L1 band four bands to achieve Beidou first generation of satellite navigation system positioning / sending function, Beidou second generation / GPS satellite navigation system positioning.