Two Compact, Wideband, and Decoupled Meander-Line Antennas Based on Metamaterial Concepts

A two-antenna system employing wideband metamaterial-inspired meander-line antennas with a maximum separation of λ0/5 is presented, and a very wide measured -10 dB return-loss bandwidth from 3.3 to 6 GHz is obtained. Orthogonal characteristic modes on the ground plane are excited, and the coupling between the two antennas is kept below -20 dB over the same frequency band.

[1]  G. Eleftheriades,et al.  A wideband metamaterial meander-line antenna , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).

[2]  Jordi Bonache,et al.  Planar Multi-Band Microwave Components Based on the Generalized Composite Right/Left Handed Transmission Line Concept , 2010, IEEE Transactions on Microwave Theory and Techniques.

[3]  Gerhard Fettweis,et al.  Design and performance evaluation of handset MIMO antenna prototypes , 2010, 2010 International ITG Workshop on Smart Antennas (WSA).

[4]  M. Cabedo-Fabres,et al.  The Theory of Characteristic Modes Revisited: A Contribution to the Design of Antennas for Modern Applications , 2007, IEEE Antennas and Propagation Magazine.

[5]  T. Itoh,et al.  Composite right/left-handed transmission line based compact resonant antennas for RF module integration , 2006, IEEE Transactions on Antennas and Propagation.

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

[7]  G. Eleftheriades,et al.  A compact and low-profile metamaterial ring antenna with vertical polarization , 2005, IEEE Antennas and Wireless Propagation Letters.

[8]  G. Eleftheriades,et al.  Planar negative refractive index media using periodically L-C loaded transmission lines , 2002 .

[9]  W.E. McKinzie,et al.  A modified Wheeler cap method for measuring antenna efficiency , 1997, IEEE Antennas and Propagation Society International Symposium 1997. Digest.

[10]  R. Murch,et al.  A capacitively loaded PIFA for compact mobile telephone handsets , 1997 .

[11]  Qing-Xin Chu,et al.  PROXIMITY-FED MIMO ANTENNA WITH TWO PRINTED IFAS AND A WIDEBAND T-SHAPED NEUTRALIZATION LINE , 2011 .