摘要
调频广播天线常采用双偶极子反射板阵列天线,维修和更换天馈线造成停播常常是难以避免的事情,为有效避免以上情况出现,我们尝试分组更换发射天馈线的方法。采用相位差旋转馈电技术和电气下倾技术,使系统具有频带宽、功率大、增益高,场型好等优点。系统改造后天馈系统的工作稳定性和可靠性大大提高,有效的提升了本台的社会效益和经济效益。
Double dipole antenna reflector array antenna is always used in FM radio, it is hard to avoid off-air due to repairing and replacement. We try to adopt the method of grouping replacement to reduce the break time. The antenna system has a wide frequency band, large power, high gain, as well as good field type when using phase rotation feeding technology and electrical downdip technology. Not only the working stability and reliability of the system are greatly increased,but also it effectively enhances the social benefit and economic benefit after modification.
出处
《广播与电视技术》
2016年第8期115-118,共4页
Radio & TV Broadcast Engineering
关键词
双偶极子反射板天线
不停播
系统调试
天线阵分组轮流更换
临时过渡变阻器
Double dipole antenna reflector antenna , Non-off-air, Modification, Antenna array grouping replacement, Temporary power dividers
