@inproceedings{052b5e97ba0c41d7ab7501d10b2e3d67,
title = "Design of tri-band branch-line couplers using novel tri-band transmission lines",
abstract = "A novel design of tri-band branch-line couplers using tri-band transmission lines is presented in this paper. The proposed tri-band transmission line employs a Pi-type line with open-and short-ended stubs. The line with Pi-type structure is applied to realize the dual-band operation at the first two frequencies (f2/f1). To achieve the third operating frequency ratio (f3), the open-and short-ended stubs are tapped at the center of the Pi-type lines. An ABCD-matrix is employed to derive the design formulas for the proposed tri-band transmission line. To verify this design concept, a planar tri-band coupler operating at 1/2.5/4.5 GHz is designed and fabricated. The simulation and measurement results show good agreement with the design theory.",
keywords = "Pi-type line, Tri-band coupler, tri-band transmission line",
author = "Han Ren and Jin Shao and Mi Zhou and Bayaner Arigong and Jun Ding and Hualiang Zhang",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2014 ; Conference date: 03-04-2014 Through 04-04-2014",
year = "2014",
month = jan,
day = "20",
doi = "10.1109/WMCaS.2014.7015884",
language = "英语",
series = "2014 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2014",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2014 Texas Symposium on Wireless and Microwave Circuits and Systems, WMCS 2014",
address = "美国",
}