Slow-wave substrate integrated suspended parallel strip line and its application to rat-race coupler

被引：0

作者：

Shen, Huajiao ^{[1
]}

Wang, Yongqiang ^{[1
]}

Meng, Fanyi ^{[1
]}

Ma, Kaixue ^{[1
]}

机构：

[1] Tianjin Univ, Sch Microelect, Tianjin Key Lab Imaging & Sensing Microelect Techn, Tianjin 300072, Peoples R China

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2023年 / 65卷 / 12期

基金：

中国国家自然科学基金;

关键词：

compact size; double-sided parallel-strip line (DSPSL); rat-race coupler; slow-wave; substrate integrated suspended line (SISL); substrate integrated suspended parallel strip line (SISPSL); BAND; FILTER;

D O I：

10.1002/mop.33870

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 paper presents a slow-wave substrate integrated suspended parallel strip line (SW-SISPSL) for the first time. The slow-wave effect is produced by cascading high/low-impedance SISPSL in the meander line configuration. Different from conventional single-ended slow-wave transmission lines, the proposed SW-SISPSL supports differential signal transmission. The characteristic impedance and slow-wave factor of the SW-SISPSL are analyzed using equivalent circuit models. Using the proposed SW-SISPSL and a SISPSL phase inverter, a very compact rat-race coupler is implemented. The core circuit area of the slow-wave rat-race coupler is 0.083 & lambda;g x 0.089 & lambda;g, which is only 4.12% of the conventional topology.

引用

页码：3196 / 3203

页数：8

共 49 条

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