Journal of South China University of Technology(Natural Science) >

2015 , Vol. 43 >Issue 3: 72 - 77

DOI: https://doi.org/10.3969/j.issn.1000-565X.2015.03.011

Electronics, Communication & Automation Technology

Dual-Band Orthogonal Power Divider with Variable Power Division Ratio Applied to ETC System

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  • 1． School of Electronic and Information Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China;2． Faculty of Automation，Guangdong University of Technology，Guangzhou 510006，Guangdong，China
李红涛(1977-)，男，博士生，讲师，主要从事无线通信系统的研究． E-mail: LHT88@126． com

Received date: 2014-08-13

  Revised date: 2014-11-27

  Online published: 2015-02-10

Supported by

Supported by the National Natural Science Foundation of China(NSFC)-Guangdong ( U1035002) and the Guangdong-Hong Kong Key Project of Science and Technology(2011A011305001，2011A011302001)

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Abstract

Proposed in this paper is a novel orthogonal Hybrid coupler applied to multi-beam electronic toll collec-tion (ETC) systems． In this coupler，two common frequency bands of ETC system including 2． 4 GHz (2． 2 ～2． 6GHz)and 5． 8GHz (5． 4 ～ 6． 0 GHz) are covered to adapt different working frequency bands，and different power distribution characteristics are endowed in the two frequency bands，that is，equally orthogonal output in 2． 4GHz band and orthogonal output in the range of 0． 5 ～7dB in 5． 8GHz band． The proposed divider is of broad bandwidth and small circuit size，and，it is proved feasible due to the good agreement between real test results and simulation data．

Key words： power divider; dual band; coupler; variable power division ratio; broadband

Cite this article

Li Hong-tao Wei Xiao-Dong Hu Bin-Jie Zhang Hong-lin Zeng Wei-sen . Dual-Band Orthogonal Power Divider with Variable Power Division Ratio Applied to ETC System[J]. Journal of South China University of Technology(Natural Science), 2015 , 43(3) : 72 -77 . DOI: 10.3969/j.issn.1000-565X.2015.03.011

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