[1]缪 晨,郑学政,吴 文.基于导纳矩阵的任意端口阻抗等分功分器设计[J].南京理工大学学报(自然科学版),2014,38(06):715.
　Miao Chen,Zheng Xuezheng,Wu Wen.Design of equal-split power divider with arbitrary port impedances based on admittance matrix[J].Journal of Nanjing University of Science and Technology,2014,38(06):715.
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基于导纳矩阵的任意端口阻抗等分功分器设计
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年06期
页码:
715
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
Design of equal-split power divider with arbitrary port impedances based on admittance matrix
作者:
缪 晨; 郑学政; 吴 文
南京理工大学 电子工程与光电技术学院,江苏 南京 210094
Author(s):
Miao Chen; Zheng Xuezheng; Wu Wen
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
关键词:
导纳矩阵;  端口阻抗;  等分功分器;  阻抗匹配;  隔离
Keywords:
admittance matrix;  port impedances;  equal-split power dividers;  impedance matching;  isolation
分类号:
TN713
摘要:
为减小非50 Ω功分器电路尺寸,研究了任意端口阻抗等分功分器。理论证明了若等分功分器的输出端口之间只使用电阻连接,不能同时实现任意端口阻抗匹配和输出端口隔离。提出了一种新的任意端口阻抗等分功分器结构。在隔离电阻两端串联不同的微带线,在各端口加载短路/开路短截线。利用此结构同时实现了各端口匹配与输出端口之间的互相隔离。基于导纳矩阵推导了该功分器的设计公式,并据此设计研制了中心频率为1 GHz,端口阻抗分别为30 Ω、53 Ω、47 Ω的等分功分器。该文方法设计的功分器电路尺寸比传统设计方法减小了约66%。测试结果验证了该等分功分器结构简单有效。
Abstract:
To decrease the circuit size of non-fifty Ω port impedances power dividers,equal-split power dividers with arbitrary port impedances are studied.It is theoretically verified that if two output ports of an equal-split power divider are connected by a resistor,the impedance matching of arbitrary ports and output port isolation cannot be realized simultaneously.A new circuit topology of equal-split power divider with arbitrary port impedances is proposed.Different microstrip lines are added in series with the isolation resistor at both ends; short/open stubs are loaded at each port.Impedance matching and output port isolation can be achieved simultaneously by adopting this configuration.The closed design formulae of this equal-split power divider with arbitrary port impedances are derived using an admittance matrix.As an example,an equal-split power divider is designed with 30 Ω,53 Ω,47 Ω port impedances and operating at 1 GHz.The circuit size designed by the method proposed here decreases by about 66% compared with that of the traditional design method.Experimental results demonstrate the simplicity and effectiveness of the proposed circuit topology of equal-split power divider with arbitrary port impedances.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-09-24 修回日期:2014-10-27
作者简介:缪晨(1978-),男,讲师,主要研究方向:近程探测系统,毫米波、微波无源电路,E-mail:miaochen78@163.com; 通讯作者:吴文(1968-),男,研究员,博士生导师,主要研究方向:毫米波天线及电路,毫米波近程探测系统,E-mail:wuwen@njust.edu.cn。
引文格式:缪晨,郑学政,吴文.基于导纳矩阵的任意端口阻抗等分功分器设计[J].南京理工大学学报,2014,38(6):715-719.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2014-12-31