Balanced Dual Composite Right/Left-Handed Microstrip Line With Modified Complementary Split-Ring Resonators

This letter presents a dual composite right/left-handed microstrip line loaded with modified complementary split-ring resonators. In this particular case, the well-known resonant particle employed has been capacitively loaded in order to obtain a balanced frequency response. The inclusion of this capacitive element has two main effects. On the one hand, the right-and left-handed bands are interchanged; on the other hand, the possibility to control the position of the right-handed band, while maintaining the left-handed one unaltered. Consequently, it is relatively simple to design balanced transmission lines with improved bandwidth and reconfigurable properties. In addition, the equivalent circuit that describes the electromagnetic behavior of the structure has been obtained. Finally, a prototype has been fabricated and measured to confirm experimentally the validity of the proposed design.

[1]  J. Bonache,et al.  Babinet principle applied to the design of metasurfaces and metamaterials. , 2004, Physical review letters.

[2]  H. Esteban,et al.  Dual Composite Right-/Left-Handed Coplanar Waveguide Transmission Line Using Inductively Connected Split-Ring Resonators , 2012, IEEE Transactions on Microwave Theory and Techniques.

[3]  David R. Smith,et al.  Electromagnetic parameter retrieval from inhomogeneous metamaterials. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[4]  Luis Enrique Garcia-Munoz,et al.  Dual-composite right-left-handed transmission lines for the design of compact diplexers , 2010 .

[5]  D. Lippens,et al.  Duality and Superposition in Split-Ring-Resonator-Loaded Planar Transmission Lines , 2009, IEEE Antennas and Wireless Propagation Letters.

[6]  F. Martín,et al.  Effective negative-/spl epsiv/ stopband microstrip lines based on complementary split ring resonators , 2004, IEEE Microwave and Wireless Components Letters.

[7]  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.

[8]  A. Borja,et al.  A 2% Bandwidth C-Band Filter Using Cascaded Split Ring Resonators , 2010, IEEE Antennas and Wireless Propagation Letters.

[9]  A compact coplanar waveguide metamaterial-inspired line and its use in tunable narrow bandpass filters , 2010, The 40th European Microwave Conference.

[10]  Brian C. Wadell,et al.  Transmission Line Design Handbook , 1991 .

[11]  Wideband Passband Transmission Line Based on Metamaterial-Inspired CPW Balanced Cells , 2011, IEEE Antennas and Wireless Propagation Letters.

[12]  J. Bonache,et al.  Composite Right/Left-Handed Metamaterial Transmission Lines Based on Complementary Split-Rings Resonators and Their Applications to Very Wideband and Compact Filter Design , 2007, IEEE Transactions on Microwave Theory and Techniques.

[13]  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.

[14]  C. Caloz,et al.  Dual Composite Right/Left-Handed (D-CRLH) Transmission Line Metamaterial , 2006, IEEE Microwave and Wireless Components Letters.

[15]  J. Bonache,et al.  Novel microstrip bandpass filters based on complementary split-ring resonators , 2006, IEEE Transactions on Microwave Theory and Techniques.

[16]  Mario Sorolla,et al.  Varactor-loaded split ring resonators for tunable notch filters at microwave frequencies , 2004 .

[17]  Vicente E. Boria,et al.  Synthesis of compact and highly selective filters via metamaterial-inspired coplanar waveguide line technologies , 2010 .

[18]  J. Bonache,et al.  Split ring resonator-based left-handed coplanar waveguide , 2003 .

[19]  Vicente E. Boria,et al.  Highly selective left-handed transmission line loaded with split ring resonators and wires , 2009 .

[20]  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.

[21]  A. Borja,et al.  Symmetrical frequency response in a split ring resonator based transmission line , 2008 .

[22]  F. Medina,et al.  Comparative analysis of edge- and broadside- coupled split ring resonators for metamaterial design - theory and experiments , 2003 .

[23]  Tatsuo Itoh,et al.  Electromagnetic metamaterials : transmission line theory and microwave applications : the engineering approach , 2005 .

[24]  J. D. Martinez,et al.  A Controllable Bandwidth Filter Using Varactor-Loaded Metamaterial-Inspired Transmission Lines , 2011, IEEE Antennas and Wireless Propagation Letters.