High-order coplanar waveguide (CPW) filters implemented by means of open split ring resonators (OSRRs) and open complementary split ring resonators (OCSRRs)

Abstract In this paper, it is demonstrated that transmission lines loaded with a combination of open split ring resonators (OSRRs) and open complementary split ring resonators (OCSRRs) are useful for the design of high-order band pass filters subjected to standard responses. Specifically, we present a 7-pole Chebyshev band pass filter in coplanar waveguide technology. The device is compact and filter performance is good, including a wide stopband response. With this work, we extend our previous work on the applications of OSRR- and OCSRR-loaded lines to the design of highly selective filters.

[1]  F. Aznar,et al.  Applications of Open Split Ring Resonators and Open Complementary Split Ring Resonators to the Synthesis of Artificial Transmission Lines and Microwave Passive Components , 2009, IEEE Transactions on Microwave Theory and Techniques.

[2]  Zhang-Cheng Hao,et al.  Ultrawideband Filter Technologies , 2010, IEEE Microwave Magazine.

[3]  F. Medina,et al.  A new LC series element for compact bandpass filter design , 2004, IEEE Microwave and Wireless Components Letters.

[4]  F. Aznar,et al.  Open Complementary Split Ring Resonators (OCSRRs) and Their Application to Wideband CPW Band Pass Filters , 2009, IEEE Microwave and Wireless Components Letters.

[5]  Francisco Medina,et al.  Role of bianisotropy in negative permeability and left-handed metamaterials , 2002 .

[6]  Ferran Martin,et al.  Broadband microwave filters based on metamaterial concepts , 2010, 2010 Conference Proceedings ICECom, 20th International Conference on Applied Electromagnetics and Communications.

[7]  J. Bonache,et al.  Equivalent-circuit models for split-ring resonators and complementary split-ring resonators coupled to planar transmission lines , 2005, IEEE Transactions on Microwave Theory and Techniques.

[8]  Ferran Martin,et al.  Analysis and applications of OSRR- and OCSRR-loaded transmission lines: A new path for the design of compact transmission line metamaterials , 2010 .

[9]  T. Itoh,et al.  Novel microwave devices and structures based on the transmission line approach of meta-materials , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[10]  Jordi Bonache,et al.  Recent Advances in Metamaterial Transmission Lines Based on Split Rings , 2011, Proceedings of the IEEE.

[11]  D. Pozar Microwave Engineering , 1990 .