电子学报 ›› 2009, Vol. 37 ›› Issue (2): 338-341.

• 论文 • 上一篇    下一篇

新型DGS双频Wilkinson功分器的研究与设计

杨瑾屏, 吴 文   

  1. 南京理工大学近程高速目标探测技术国防重点学科实验室,江苏南京 210094
  • 收稿日期:2007-06-27 修回日期:2008-10-13 出版日期:2009-02-25 发布日期:2009-02-25

Design of Dual-Band Wilkinson Power Divider Defected Using Ground Structure

YANG Jin-ping, WU Wen   

  1. Ministerial Key Laboratory of JGMT,Nanjing University of Science and Technology,Nanjing,Jiangsu 210094,China
  • Received:2007-06-27 Revised:2008-10-13 Online:2009-02-25 Published:2009-02-25

摘要: 本文在多节阻抗变换器基础上嵌入螺旋型缺陷地结构(SP-DGS)以满足功分器所需阻抗和相位条件,从而实现了在两个任选的工作频率上同时具有良好功率传输、匹配和隔离特性的新型功分器设计.该设计的突出优点是所需电抗可由SP-DGS结构精确实现,整个设计过程严密而不失灵活性.最后,采用上述方法设计并研制了一个2.4GHz/5.8GHz双频功分器,工作频带内的最大插损分别是0.1dB和0.4dB,回波损耗和隔离度均优于15dB.

关键词: 功分器, 双频段, 阻抗变换器, DGS

Abstract: A novel compact dual-band Wilkinson power divider(PD) is researched,which consists of tri-sections impedance transformer integrated with a spiral defected ground structure(SP-DGS).To satisfy the impedance and phase conditions by using SP-DGS,the characteristics of PD such as an equal power split,impedance matching at all ports,and a good isolation between the two output ports are fulfilled at two arbitrary given frequencies simultaneously.The main advantage of this design is that the required reactance is accurately realized by SP-DGS.The design process and formulas are also given,which are strict but flexible.Finally,a 2.4 GHz/5.8 GHz dual-band PD is developed.Measured results show that the maximal passband insert-loss is 0.1dB and 0.4dB,and the return loss and isolation are both more than 15 dB in a wide frequency range.

Key words: power divider, dual-band, impedance transformer, DGS

中图分类号: