A novel dual-band ring coupler based on dual-band phase inverter

作者：Yang, Xiao^*; Zhang, Xuchun; Liao, Zhenheng

来源：International Journal of RF and Microwave Computer-Aided Engineering, 2018, 28(4): e21226.

DOI：10.1002/mmce.21226

• dual-band
• phase inverter
• ring coupler

A novel dual-band ring coupler based on dual-band phase inverter is proposed. And two types of dual-band phase inverters (Type I and Type II) are designed in this article. The design method of dual-band ring coupler is simpler than the traditional ways like replace the single-band /4 transmission line with dual-band /4 transmission line. Its main idea is replacing the wide-band phase inverter with dual-band phase inverter. Two dual-band ring couplers (0.9/2.88 and 0.9/2.43GHz) using the two types of dual-band phase inverter, respectively, are simulated and measured. The measured results validate the proposed method.

• 出版日期2018-5