Analysis of the Propagation Constant of a Ridge Gap Waveguide and Its Application of Dual-Band Unequal Couplers

被引：12

作者：

Huang, Hongyi ^{[1
]}

Wu, Yongle ^{[1
]}

Wang, Weimin ^{[1
]}

Feng, Wenjie ^{[2
]}

Shi, Yongrong ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing Key Lab Work Safety Intelligent Monitorin, Beijing 100876, Peoples R China

[2] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China

[3] Nanjing Univ Aeronaut & Astronaut, Minist Ind & Informat Technol, Key Lab Dynam Cognit Syst Electromagnet Spectrum, Nanjing 211106, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2020年 / 48卷 / 12期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

Coupler; dual-band operation; propagation constant; ridge gap waveguide (RGW) technology; CLOSED-FORM EXPRESSIONS; BRANCH-LINE COUPLER; RAT-RACE COUPLER; POWER DIVIDER; ANTENNA-ARRAY; DESIGN; IMPEDANCE; EFFICIENCY;

D O I：

10.1109/TPS.2020.3034669

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In this article, an analysis of the propagation constant and the characteristic impedance of a ridge gap waveguide (RGW) is proposed, which includes the comparison of the phase variation between three kinds of guiding structures, the approximation for the propagation constant of RGW, and the variation of characteristic impedances and phase characteristics. According to the analysis, the RGW technology, rather than the traditional microstrip transmission line, is utilized to implement two dual-band unequal couplers operating at two frequency bands. Furthermore, a coupler is fabricated and measured, exhibiting a dual-band operation with a power-dividing ratio of 2 dB and a quadrature phase difference with the same sign between two output ports.

引用

页码：4163 / 4170

页数：8

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