科研之友
微信
新浪微博
Facebook
分享链接
摘要
In this paper, a miniaturized branch-line coupler with harmonic suppression is presented. Approximately 80% size reduction in comparison with the conventional branch-line coupler is achieved using the step impedance bent transmission line, loaded by in-line beeline structure. Experimental result shows more than 24 dB suppression for primary odd harmonics (3rd, 5th, and 7th). The measured relative low insertion loss (3.2 dB) and desired coupling (3.1 dB) as well as 89.7 phase difference between through and coupled ports for the center frequency are verified.
- 出版日期2014-7
