NDLI: Research on the equivalent circuit of microstrip T-junctions and its application on branch-line coupler

Content Provider	IEEE Xplore Digital Library
Author	Ge Tian Jin-Ping Yang Lan Cui Wen Wu Sheng-Cai Shi
Copyright Year	2012
Description	Author affiliation: Ministerial Key Laboratory of JGMT, Nanjing University of Science and Technology, Nanjing, 210094, China (Ge Tian; Lan Cui; Wen Wu) \|\| Purple Mountain Observatory, CAS, NanJing, Jiangsu, 210008, China (Jin-Ping Yang; Sheng-Cai Shi)
Abstract	Analysis of microstrip T-junctions based on their equivalent circuit model is introduced in this paper. Explicit design formulas are derived using the admittance-matrix. Improved T-junctions with convex and concave segments are investigated and applied to the branch-line coupler with center frequency of 12GHz. The return loss of the coupler is better than −36.3 dB in all ports with isolation of −43.8 dB at the center frequency, while the amplitude imbalance is below 0.12 dB.
Starting Page	1
Ending Page	4
File Size	886030
Page Count	4
File Format	PDF
ISBN	9781467321846
e-ISBN	9781467321853
DOI	10.1109/ICMMT.2012.6229911
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-05
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated circuit modeling Microstrip Couplers Equivalent circuits Capacitance Microwave circuits admittance-matrix T-junctions microstrip line circuit model
Content Type	Text
Resource Type	Article

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Research on the equivalent circuit of microstrip T-junctions and its application on branch-line coupler