【作者】 童伟； 曾斌； 胡之润； 张海英；

【Author】 Tong Wei~1,Zeng Bin~1,Hu Zhirun~2,Zhang Haiying~3 (The Southwest Institute of Electronic Equipment,Chengdu 61000) 1 (School of Electrical & Electronic Engineering,The University of Manchester,Manchester,M60 1QD,U K) 2 (Institute of Microelectronics,Chinese Academy Science,Beijing,10000) 3

【机构】 西南电子设备研究所； 英国曼彻斯特大学； 中科院微电子研究所；

【摘要】 本文基于MMIC技术实现了一种新型的微型双面复合左右手传输线结构。双面复合左右手传输线是常规复合左右手传输线的逆,即其由一个串联的LC并联振荡回路和一个并联的LC串联振荡回路组成。与常规复合左右手传输线相反,双面复合左右手传输线在低频拥有左手通带而在高频拥有右手通带。然而,由于不可避免的寄生效应,双面复合左右手的高频左手通带以后会继续产生一个右手通带。实验结果表明文中设计的MMIC双面复合左右手传输线拥有三个通带,即:dc-2.9GHz为右手通带,5.1-14.3GHz为左手通带,14.3GHz以上为右手通带。由于MMIC技术的结合应用,使本文中设计的双面复合左右手传输线仅为原来报道的双面传输线[1,2]大小的1.35%,同时右手寄生效应被大大减小,增大了3.5倍的左手通带带宽。更多还原

【Abstract】 A novel realizable dual composite right/left-handed(D-CRLH) coplanar waveguide(CPW) transmission(TL) in GaAs MMIC technology demonstrated by theoretical analysis and experimental results is presented.A D-CRLH TL is the dual of the conventional CRLH TL in the sense that it consists of series LC parallel-tanks and shunt LC series-tanks.In contrast to the conventional CRLH TL which has LH operation at low-frequency and RH one at high-frequency,the D-LH TL exhibits its LH band at high frequencies and its RH band at low frequencies.However,due to the unavoidable parasitic effect,there will be a RH operation band above the LH band in higher frequencies. The measured results demonstrate the proposed D-CRLH TL has triple bands:a low-frequency RH band from dc to 2.9 GHz,an intermidiate-frequency LH band from 5.1 GHz to 14.3 GHz,a high-frequency RH band above 14.3 GHz.Thanks to the application of MMIC technology,the proposed D-CRLH TL has a rather compact size of 2.2 mm2,which is only 1.35%to that reported in[1,2],Furthermore,due to the compact size and CPW structure,RH effects have been significantly reduced,leading to a 3.5 times broader LH middle bandwidth than that of PCB microstrip one.更多还原