DESIGN OF A COMPACT BRANCH-LINE COUPLER USING CAPACITANCE LOADING

作者：Jing Tao^*; Shi Xiao Wei; Guo Yu Chun; Chen Lei; Chen Xiao Qun

来源：Microwave and Optical Technology Letters, 2009, 51(1): 198-200.

DOI：10.1002/mop.23992

• compact branch-line coupler
• cascading techniques
• capacitance loading

This article presents a compact branch-line coupler (BLC) for balanced-type circuit application. It was designed by utilizing cascading multisection and capacitance-loading technique for bandwidth increase and size reduction individually. The proposed BLC was simulated and fabricated. Its physical length reduces by 28.7%, while it performs as good as the conventional one. The simulated and the measured results have a good agreement. The method is valid for compact and good performance BLC design.

• 出版日期2009-1
• 单位西安电子科技大学