Broad-band micro strip-to-CPW transition via frequency-dependent electromagnetic coupling

被引：69

作者：

Zhu, L ^{[1
]}

Menzel, W

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Univ Ulm, Dept Microwave Tech, D-89069 Ulm, Germany

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2004年 / 52卷 / 05期

关键词：

broad-band; electromagnetic (EM) coupling; experimental deembedding; method of moments (MoM); microstrip-to-coplainar-waveguide (CPW) transition; short-open calibration (SOC);

D O I：

10.1109/TMTT.2004.827034

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：

An improved broad-band microstrip-to-coplanar-waveguide (CPW) transition is developed on a basis of the frequency-dependence characteristic of an electromagnetic surface-to-surface coupling. A self-calibrated method of moments is extended to model this unbounded two-port discontinuity with the two dissimilar microstrip/CPW feeding lines. Numerical results are provided to demonstrate its frequency response of transmission under varied strip/slot dimensions and further exhibit its attractive ultra-broad-band transmission with low radiation loss. Next, the back-to-back transition circuits with the two different lengths are fabricated and measured to deembed in experiment the S-parameters of two single-transition structures. Predicted and measured results show good agreement with the return loss less than - 10 dB over the frequency of 3.2-11.2 GHz.

引用

页码：1517 / 1522

页数：6

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