自动天线调谐器检测电路与算法设计  

Detection Circuit and Algorithm for Automatic Antenna Tuner

作　　者：简平 林青山 陈开宝 

机构地区：[1]广东人民广播电台技术部,广东广州510012 [2]海华电子企业有限公司,广东广州510656

出　　处：《通信技术》2015年第8期979-982,共4页Communications Technology

摘　　要：检测网络及对应的配谐算法是天线调谐器的重要环节。提出了阻抗检测电路和电压/电流相位检测电路,包括其工作原理及调试方式,以实现检测网络测试数据与smith圆图区间的对应关系,满足调谐区间的判定。另外配合所述硬件匹配网络并根据smith阻抗图的原理,对算法系统的技术难点进行了深入探讨,给出了天线阻抗配谐的软件流程实现方案。测试试验表明:平均调谐时间和调谐精度等指标均满足预定要求。Impedance detection and voltage/current phase detection circuits are proposed, including their working principles and debugging methods, thus to realize the corresponding relationship of between the test data of network detection and the Smith chart region for subsequent judgment in tuning range. Accord- ing to the hardware matching network and the principle of Smith impedance chart, an in-depth exploration on the technical difficulties of this algorithm is done, and meanwhile the implementation scheme of impedance matching software design also presented. Test experiment indicates that the, average tuning time, tuning precision and other indexes could fairly meet the predefined requirements.

关 键 词：天线调谐器 检测电路 软件算法 配谐 

分 类 号：TN820.8[电子电信—信息与通信工程]