Slow-Wave Broadside-Coupled Microstrip Lines and Its Application to the Rat-Race Coupler

被引：7
|
作者：
Chang, Wei-Shin [1 ]
Liang, Cheng-Hsien [1 ]
Chang, Chi-Yang [1 ]
机构：
[1] Natl Chiao Tung Univ, Inst Commun Engn, Hsinchu 300, Taiwan
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2015年 / 25卷 / 06期
关键词：
Broadside-coupled microstrip lines; high isolation; rat-race coupler; slow-wave structure; DESIGN;
D O I：
10.1109/LMWC.2015.2421306
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a type of slow-wave broadside-coupled microstrip lines. The new structure only requires a single-layer substrate and has the independently controllable even-and odd-mode impedances and slow-wave factors by adjusting the corresponding structural parameters. This property greatly simplifies the circuit design. In addition, it provides a large coupling strength. A miniaturized wideband microstrip rat-race coupler with the high isolation and perfect balances is implemented using the proposed slow-wave coupled lines.
引用
收藏
页码：361 / 363
页数：3
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