一种基于正交处理提高耦合器方向性的方法  

A Method of Improving Coupler Directivity Based on Orthogonal Processing

作　　者：盛胜君[1] 王姜铂[1] 

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《无线电工程》2017年第5期95-97,共3页Radio Engineering

摘　　要：在射频宽带发射机系统中,需要对驻波进行实时检测。因为耦合器的方向性有限,单个取样信号(正向耦合信号和反向耦合信号)都包括正向功率的耦合信息和反向功率的耦合信息,这造成了驻波检测的误差。针对这一问题,提出了一种基于对耦合信号进行正交处理的检测方法,降低正反向功率随频点对耦合信号的干扰,可有效地提高宽带耦合器的检测精度。It＇ s necessary to detect the standing wave in the wideband RF transmitter system in real time.Because of the direction limit of the coupler,the single sampling signal （positive coupling signal, reverse coupling signal） covers the coupling information on both positive power and reflected power, it will cause the detection error of the standing wave. Aiming at this problem, the paper proposes a new method based on phase orthogonality of coupling signal.It can lower the interference of positive power and reflected power to the coupling signal,which effectively improves the direction detection accuracy of wideband coupler.

关 键 词：反向耦合 分配器 移相网路 相位正交 

分 类 号：TN911.23[电子电信—通信与信息系统]