Recursive active filter with metamaterial unequal Wilkinson power dividers

In this work, it is shown that it is possible to implement an unequal Wilkinson power divider with reduced dimensions by using metamaterial transmission lines based on complementary split ring resonators (CSRRs), in planar technology. In addition, this combiner has been used to implement a compact recursive active filter. Thanks to the use of the metamaterial combiner it is possible obtain a filter with small dimensions. Additionally, due to the asymmetry in the power divider it is possible obtain high gain and low noise at the same time that minimizes the number of lumped element.

[1]  Jong-Sik Lim,et al.  A 1: 6 Unequal Wilkinson Power Divider , 2006, 2006 European Microwave Conference.

[2]  Ferran Martin,et al.  Metamaterial filters: A review , 2008 .

[3]  Jordi Bonache,et al.  Miniaturization of narrow‐band power dividers by using CPW metamaterial transmission lines , 2009 .

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

[5]  D. Pozar.  Microwave Engineering , 1990 .

[6]  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.

[7]  Ferran Martin,et al.  Miniaturisation of planar microwave circuits by using resonant-type left-handed transmission lines , 2007 .

[8]  P. Guillon,et al.  Optimization of noise performance for various topologies of planar microwave active filters using noise wave techniques , 1998 .

[9]  D. Segovia-Vargas,et al.  Dual-Band Recursive Active Filters With Composite Right/Left-Handed Transmission Lines , 2009, IEEE Transactions on Microwave Theory and Techniques.

[10]  Jordi Bonache,et al.  Applications of resonant‐type metamaterial transmission lines to the design of enhanced bandwidth components with compact dimensions , 2008 .

[11]  P. Guillon,et al.  Stability diagnosis of microwave recursive structures using the NDF methodology , 1995, Proceedings of 1995 IEEE MTT-S International Microwave Symposium.

[12]  Sangwook Nam,et al.  A 4.1 unequal Wilkinson power divider , 2001, IEEE Microwave and Wireless Components Letters.

[13]  Ignacio Gil,et al.  Metamaterial transmission lines with extreme impedance values , 2006 .

[14]  Wen Wu,et al.  A 10:1 Unequal Wilkinson Power Divider Using Coupled Lines With Two Shorts , 2009, IEEE Microwave and Wireless Components Letters.

[15]  C. Rauscher,et al.  Microwave Active Filters Based on Transversal and Recursive Principles , 1985 .

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