Miniature In-Phase Wilkinson Power Divider with Pair of Parallel Transmission-Lines for Application in Wireless Microwave Systems

被引:3
作者
Khajeh-Khalili, Farzad [1 ]
Honarvar, M. Amin [1 ]
Virdee, Bal S. [2 ]
机构
[1] Islamic Azad Univ, Dept Elect Engn, Najafabad Branch, Najafabad, Iran
[2] London Metropolitan Univ, Fac Life Sci & Comp, Ctr Commun Technol, London, England
关键词
Defected ground structure (DGS); Pair of parallel transmission-lines (PPTLs) miniaturization; Particle swarm optimization (PSO); Wilkinson power divider (WPD);
D O I
10.1080/03772063.2018.1533437
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
A novel miniature Wilkinson power divider (WPD) design is presented. This is achieved by substituting the quarter-wavelength transmission-lines constituting the WPD with an equivalent pair of parallel transmission-lines (PPTLs) that effectively reduce the circuit size of the WPD by 43% compared with a conventional design whose ground-plane is defected. Particle swarm optimization (PSO) technique is used to achieve size reduction. Meandering the transmission-lines further reduce the WPD size by 22%. The proposed WPD has overall dimensions of 9.38 x 11.51 mm(2) or 0.11 lambda(g) x 0.14 lambda(g) , which is compatible with the requirements imposed by portable personal wireless systems. Coupling between the parallel transmission-lines is shown to extend the operational bandwidth of the power divider to 3.2 GHz (0.8-4 GHz) for a return-loss better than 10 dB.
引用
收藏
页码:227 / 234
页数:8
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