An improved equivalent circuit model for C/D CRLH TL metamaterials

N. Kou, Yan Shi, Long Li
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引用次数: 1

Abstract

This paper proposes an improved equivalent circuit model for the composite right/left-handed transmission line (CRLH TL) and Dual-CRLH (DCRLH) TL unit cells. A pseudo-inverse technique is first implemented to extract the primary equivalent circuit. By using the conventional filter synthesis technique, the retrieval primary equivalent circuit is further transformed to a typical band-pass/band-stop filter circuit as the secondary equivalent circuit. With two-step retrieval procedure, the response of the secondary equivalent circuit can more accurately agree with that of CRLH/DCRLH TL unit cell in magnitude and phase of S parameters. Numerical results are given to demonstrate good performance of the proposed synthesis method.
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一种改进的C/D CRLH TL超材料等效电路模型
本文提出了一种改进的左右复合传输线(CRLH TL)和双CRLH (DCRLH) TL单元格等效电路模型。首先采用伪逆技术提取初级等效电路。利用传统的滤波器合成技术,将检索初级等效电路进一步转化为典型的带通/带阻滤波器电路作为次级等效电路。采用两步反演程序,二次等效电路的响应在S参数的幅度和相位上能更准确地与CRLH/DCRLH TL单元电池的响应一致。数值结果表明了所提出的综合方法的良好性能。
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