Dual-Band Orthomode Transducer Based on Using Composite Right/Left-Handed Transmission Lines
This paper proposes a novel orthomode transducer (OMT) based on using composite right/left-han1ded (CRLH) transmission lines (TLs), which accomplishes the same function at two different arbitrary frequencies.Theory, synthesis procedure, and implementation of the dual-band OMT are presented.First, the CRLH TL theory is given, and a microstrip implementation of a CRLH TL is described.A novel structure of the OMT by replacing the general pure right-handed (RH) TL branches with the CRLH TL branches is then proposed.The dual-hand OMT exhibits return loss larger than 6dB in the first band and 17dB in the second band, phase difference1.80° ±2°and amplitude amplitude imbalance less than 0.5dB.The research also finds that the jumpers have a remarkable effect on the return loss and the return loss increases as the heights of jumpers decrease.
orthomode transducer composite right/left-handed transmission lines dual-band jumper
GONG Ying-hui
School of Electronic and information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
国内会议
2013年第四届全国通信新理论与新技术学术大会CTC2013
北京
英文
29-33
2014-01-01（万方平台首次上网日期，不代表论文的发表时间）