定向耦合器自动方向性调节的设计  

Design of directional coupler with automatic directivity tuning

作　　者：薛海皋[1] 吕建平[1] 

机构地区：[1]苏州大学电子信息学院,江苏苏州215021

出　　处：《电子设计工程》2010年第3期110-112,共3页Electronic Design Engineering

摘　　要：为了减少对调试员工的依赖性,提高产品调试速度和检测精度,设计出一种可以实现自动方向性调节的定向耦合器。与传统方法相比,该方法采用PIN型二极管代替调节电容,利用其阻抗可变特性,通过偏置电压来调节匹配阻抗,最终实现定向耦合器的自动方向性调节。通过实验验证和最终批量测试数据表明该方法摆脱了传统调节方式对人工的依赖,通过较少的元件实现了自动调节,可以提高检测精度和产品的一致性,产品的调节时间减少了约80%。In order to reduce the dependency of tuning operators,improve the tuning speed and detection accuracy,it designed a directional coupler with automatic directivity tuning.Compared to traditional method, this approach replaced tuning capacitor with PIN diodes, made use of its characteristics of variable impedance to adjust the impedance through the bias voltage to achieve the autotuning of directivity.The experiment and final test data prove that this method eliminates the dependency of tuning operators,improves detection accuracy and consistency of the products with fewer components,tuning time reduces by about 80%.

关 键 词：定向耦合器 方向性调节 VSWR检测 功率检测 

分 类 号：TN817[电子电信—信息与通信工程]