Design of Planar Complex Impedance Transformers With the Modified Coupled Line

被引:29
作者
Chen, Ming-Guang [1 ]
Hou, Teng-Bang
Tang, Ching-Wen [1 ,2 ]
机构
[1] Natl Chung Cheng Univ, Dept Elect Engn, Ctr Telecommun Res, Chiayi 621, Taiwan
[2] Natl Chung Cheng Univ, Dept Commun Engn, Ctr Telecommun Res, Chiayi 621, Taiwan
来源
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY | 2012年 / 2卷 / 10期
关键词
Complex impedance transformer; modified coupled line; TRANSMISSION-LINES;
D O I
10.1109/TCPMT.2012.2207457
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Complex impedance transformers with the modified coupled line are provided in this paper. With the modified coupled line as proposed, the electrical length of the impedance transformer would be smaller than a quarter wavelength. In addition, analytic equations for the design of complex impedance transformers are derived; optimal characteristic impedance and impedance transformation are also calculated for successful power transfer. Simulation and measurement have demonstrated transformation efficiency and the potential for application of the proposed structure to radio frequency and microwave circuits.
引用
收藏
页码:1704 / 1710
页数:7
相关论文
共 20 条
[1]  
Ang K., 2004, IEEE Transactions of Microwave Theories and Techniques, V52, P2640
[2]   ANALYSIS OF RECTANGULAR SPIRAL TRANSFORMERS FOR MMIC APPLICATIONS [J].
BOULOUARD, A ;
LEROUZIC, M .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1989, 37 (08) :1257-1260
[3]   A Novel Power-Divider Design With Unequal Power-Dividing Ratio and Simple Layout [J].
Cheng, Kwok-Keung M. ;
Li, Pak-Wing .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2009, 57 (06) :1589-1594
[4]   Design of quarter-wave compact impedance transformers using coupled transmission lines [J].
Chramiec, J ;
Kitlinski, M .
ELECTRONICS LETTERS, 2002, 38 (25) :1683-1685
[5]  
Cohn S.B., 1955, IEEE Trans. Microw. Theory Tech, V3, P16, DOI [10.1109/tmtt.1955.1124940, DOI 10.1109/TMTT.1955.1124940]
[6]  
ENGELS M, 1994, IEEE MTT-S, P1293, DOI 10.1109/MWSYM.1994.335586
[7]   DESIGN OF STEPPED TRANSMISSION-LINE TRANSFORMERS [J].
FRENCH, GN ;
FOOKS, EH .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1968, MT16 (10) :885-&
[8]  
Frlan E., 1989, IEEE 1989 MTT-S International Microwave Symposium Digest (Cat. No.89CH2725-0), P661, DOI 10.1109/MWSYM.1989.38812
[9]  
Howard G. E., 1989, IEEE 1989 MTT-S International Microwave Symposium Digest (Cat. No.89CH2725-0), P1251, DOI 10.1109/MWSYM.1989.38953
[10]   Coupled transmission lines as impedance transformer [J].
Jensen, Thomas ;
Zhurbenko, Vitaliy ;
Krozer, Viktor ;
Meincke, Peter .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2007, 55 (12) :2957-2965