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J Electromagn Eng Sci > Volume 14(1); 2014 > Article
Journal of Electromagnetic Engineering and Science 2014;14(1):15-24.
DOI: https://doi.org/10.5515/JKIEES.2014.14.1.15   
Compact Dual-Band Three-Way Metamaterial Power-Divider with a Hybrid CRLH Phase-Shift Line
Kyeongnam Jang1, Sungtek Kahng1, Jinsu Jeon1, Qun Wu2
1Department of Information and Telecommunication Engineering, Incheon University
2Harbin Institute of Technology
Abstract
A compact dual-band three-way metamaterial power divider is proposed that has three in-phase outputs. Fully printed composite rightand left-handed (CRLH) unequal and equal power dividers are first implemented for 900-MHz and 2.4-GHz bands with the power-division ratios of 2:1 and 1:1, respectively. An initial 1:1:1 power divider is then achieved by incorporating the input of the two-way equal block into an output of the unequal block, and trimming the interconnection parameters. The condition of an identical phase at the three outputs of the power divider is then met by devising a hybrid CRLH phase-shift line to compensate for the different phase errors at the two frequencies. This scheme is confirmed by predicting the performance of the power divider with circuit analysis and full-wave simulation and measuring the fabricated prototype. They results show agreement; the in-phase outputs as well as the desirable power-division are accomplished and outdo the conventional techniques.
Key words: Delay Line, Dual-Band, Metamaterial, Phase-Shift Line, Power Divider, Size-Reduction
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