Analysis and design of an ultra wideband directional coupler

被引:17
作者
Nedil, M. [1 ]
Denidni, T.A. [1 ]
机构
[1] NRS-EMT, Place Bonaventure 800, Portail Nord-Ouest Bureau 6900, Montrèal, H5A 1K6, QC
来源
Progress In Electromagnetics Research B | 2008年 / 1卷 / 01期
关键词
Ultra-wideband (UWB) - Conformal mapping - Coplanar waveguides;
D O I
10.2528/PIERB07110704
中图分类号
学科分类号
摘要
In this paper, a novel wideband directional coupler using coplanar waveguide multilayer slot-coupled technique is presented and implemented. The coupler uses two coplanar waveguide lines etched on two layers and coupled through an hexagonal slot etched on the common ground plane located between these layers. Firstly, conformal mapping techniques were used to obtain analytic closed-form expressions for the even- and odd-mode characteristic impedances. Secondly, using this approach, a new design of the directional coupler was performed. Both simulation and experimental results show a good performance in terms of bandwidth.
引用
收藏
页码:291 / 305
页数:14
相关论文
共 26 条
[1]  
Nguyen C., Investigation of hybrid modes in broadside-coupled coplanar waveguide for microwave and millimeter-wave integrated circuits, IEEE Antenna Propagat. Symp., pp. 18-23
[2]  
Wen C.P., Coplanar-waveguide directional couplers, IEEE Trans. Microwave Theory and Tech., 18, 6, pp. 318-322
[3]  
Singkornrat P., Buck J.A., Picosecond pulse propagation in coplanar waveguide forward directional couplers, IEEE Trans. Microwave Theory and Tech., 6, 39, pp. 1025-1028, (1991)
[4]  
Bedair S.S., Wolff I., Fast and accurate analytic formulas for calculating the parameters of a general broadside-coupled coplanar waveguide for (M)MIC applications, IEEE Trans. Microwave Theory and Tech., 5, 37, pp. 843-850, (1989)
[5]  
Kim D.J., Jeong Y., Kang J.H., Kim J.H., Kim C.S., Lim J.S., Ahn D., A novel design of high directivity CPW directional coupler design by using DGS, IEEE, MTT-S Int. Microw. Symp. Dig., pp. 1239-1243
[6]  
Akkaraekthalin P., Sawangnate C., Vivek V., Conductorbacked coplanar waveguide directional coupler and its use for a varactor-tuned 90° phase shifter, IEEE APCCAS 2000 Circuits and Systems, pp. 525-528
[7]  
Liao C.L., Chen C.H., A novel coplanar-waveguide directional coupler with finite-extent backed conductor, IEEE Trans. Microwave Theory and Tech., 1, 51, pp. 200-206, (2003)
[8]  
Nedil M., Denidni T.A., Talbi L., CPW multilayer slotcoupled directional coupler, Electron. Lett., 12, 41, pp. 45-46, (2005)
[9]  
Nedil M., Denidni T.A., Quasi-Static analysis of a new wideband directional coupler using CPW multilayer technology, IEEE, MTT-S Int. Microw. Symp. Dig., pp. 1133-1136
[10]  
Bona M., Manholm L., Satarski J.P., Svensson B., Low-loss compact Butler matrix for a microstrip antenna, IEEE Trans. on Microwave Theory Tech., 9, 50, pp. 2069-2075, (2002)