Application of Composite Right/Left-Handed Half-Mode Substrate Integrated Waveguide to the Design of a Dual-Band Rat-Race Coupler

被引：0

作者：

Dong, Yuandan ^{[1
]}

Itoh, Tatsuo ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

来源：

2010 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST (MTT) | 2010年

关键词：

Composite right/left-handed (CRLH); dual-band; half-mode substrate integrated waveguide (HMSIW); rat-race coupler;

D O I：

暂无

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：

Based on the composite right/left-handed (CRLH) half-mode substrate integrated waveguide (HMSIW) transmission line (TL), a dual-band rat-race coupler is implemented and presented in this paper. The CRLH behavior of the HMSIW TL is obtained by etching the interdigital slot on the waveguide surface. It supports the propagation of the backward-wave below the characteristic waveguide cutoff frequency in the left-handed (LH) region and the forward-wave in the right-handed (RH) region. This attribute (phase advance and phase delay at different frequencies) is applied to the design of a dual-band rat-race coupler. Equivalent circuit and dispersion diagram are discussed. Theory and synthesis procedures are provided. Couplers based on the conventional HMSIW and CRLH HMSIW are designed, fabricated and compared. Their 180 degrees-out-of-phase and in-phase operations are verified. Good agreement between the simulation and measurement is observed.

引用

页码：712 / 715

页数：4

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