Comments on "Systematic Design Technique for Dual-Band Branch-Line Coupler Using T-and Pi-Networks and Their Application in Novel Wideband-Ratio Crossover"

被引：1

作者：

He, Qing ^{[1
]}

Zhang, Jiabin ^{[1
]}

Meng, Fanyong ^{[1
]}

机构：

[1] Beijing Informat Sci & Technol Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100192, Peoples R China

来源：

IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY | 2019年 / 9卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Dual band; T-networks; branch-line coupler (BLC);

D O I：

10.1109/TCPMT.2018.2867914

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the above paper, the authors propose a new design method for dual-band branch-line coupler. However, two errors have been found and some parameters are assigned partially. For clarification of the formulas of this design, the design equations are rededuced and the previous error equations are rectified. Then, the missing possibility is analyzed, which expands the band-ratio range. For proving the validity of this design, two simulations are implemented.

引用

页码：805 / 807

页数：3