Compact MIMO Antennas Using a Ring Hybrid for WLAN Applications

References

• Krairiksh , M. , Keowsawat , P. , Phongcharoenpanich , C. and Kosulvit , S. 2009 . Two-probe excited circular ring antenna for MIMO application . Progress In Electromagnetics Research , 97 : 417 – 431 .
   Web of Science ®Google Scholar
• Mallahzadeh , A. R. , Es’haghi , S. and Alipour , A. 2009 . Design of an E-shaped MIMO antenna using IWO algorithm for wireless application at 5.8 GHz . Progress In Electromagnetics Research , 90 : 187 – 203 .
   Google Scholar
• Zhao , K. , Zhang , S. and He , S. L. 2010 . Closely-located MIMO antennas of Tri-band for WLAN mobile terminal applications . Journal of Electromagnetic Waves and Applications , 24 ( Nos. 2–3 ) : 363 – 371 .
   Google Scholar
• Chen , Y. B. , Jiao , Y. C. , Zhang , F. S. and Gao , H. W. 2006 . A novel small CPW-fed T-shaped antenna for MIMO system applications . Journal of Electromagnetic Waves and Applications , 20 ( No. 14 ) : 2027 – 2036 .
   Google Scholar
• Chou , H.-T. , Cheng , H.-C. , Hsu , H.-T. and Kuo , L.-R. 2008 . Investigations of isolation improvement techniques for multiple input multiple output (MIMO) WLAN portable terminal applications . Progress In Electromagnetics Research , 85 : 349 – 366 .
   Web of Science ®Google Scholar
• Keowsawat , P. , Phongcharoenpanich , C. , Kosulvit , S. , Takada , J. and Krairiksh , M. 2009 . Mutual information of MIMO system in a corridor environment based on double directional channel measurement . Journal of Electromagnetic Waves and Applications , 23 ( Nos. 8–9 ) : 1221 – 1233 .
   Google Scholar
• Abouda , A. A. , El-Sallabi , H. M. , Vuokko , L. and H¨aggman , S. G. 2007 . Spatial smoothing effect on Kronecker MIMO channel model in urban microcells . Journal of Electromagnetic Waves and Applications , 21 ( No. 5 ) : 681 – 696 .
   Google Scholar
• Qu , Y. , Liao , G. , Zhu , S.-Q. , Liu , X.-Y. and Jiang , H. 2008 . Performance analysis of beamforming for MIMO radar . Progress In Electromagnetics Research , 84 : 123 – 134 .
   Google Scholar
• Wang , Y. and Li , H. 2010 . A novel antenna selection scheme for amplify-and-forward MIMO relay systems . Journal of Electromagnetic Waves and Applications , 24 ( Nos. 11–12 ) : 1530 – 1542 .
   Google Scholar
• Ni , W. and Nakajima , N. 2009 . Compact and high performance MIMO ceramic antenna for portable terminals . Journal of Electromagnetic Waves and Applications , 23 ( No. 10 ) : 1345 – 1355 .
   Web of Science ®Google Scholar
• Roozbahani , M. G. , Jedari , E. and Shishegar , A. A. 2008 . A new link-level simulation procedure of wideband MIMO radio channel for performance evaluation of indoor WLANs . Progress In Electromagnetics Research , 83 : 13 – 24 .
   Web of Science ®Google Scholar
• Gesbert , D. , Shafi , M. , Shiu , D. S. , Smith , P. and Naguib , A. 2003 . From theory to practice: An overview of MIMO space-time coded wireless systems . IEEE Journal on Selected Areas in Communications , 21 ( No. 3 ) : 281 – 302 .
   Google Scholar
• Qi , S. , Wu , W. and Shen , Z. 2009 . “ Port decoupling of two arbitrary antennas in close proximity through an eigenmode feed work ” . In IEEE Antennas and Propagation Society International Symposium on APSURSI’09 1 – 4 .
   Google Scholar
• Jensen , M. A. and Wallace , J. W. 2004 . A Review of antennas and propagation for MIMO wireless communications . IEEE Trans. Antennas Propag. , 52 ( No. 11 ) : 2810 – 2824 .
   Google Scholar
• Kim , K.-J. and Ahn , K.-H. 2007 . The high isolation dual-band inverted F antenna diversity system with the small N-section resonators on the ground plane . Microw. Opt. Technol. Lett. , 49 ( No. 3 ) : 731 – 734 .
   Google Scholar
• Kokkinos , T. , Liakou , E. and Feresidis , A. P. 2008 . Decoupling antenna elements of PIFA arrays on handheld device . Electronics Letters , 44 ( No. 25 ) : 1442 – 1444 .
   Google Scholar
• Yang , F. and Samii , Y. R. 2003 . Microstrip antennas integrated with electronic band gap EBG structure . IEEE Trans. Antennas Propag. , 51 ( No. 10 ) : 2036 – 2946 .
   Google Scholar
• Chen , S.-C. , Wang , Y.-S. and Chung , S.-J. 2008 . A decoupling technique for increasing the port isolation between two strongly coupled antennas . IEEE Trans. Antennas Propag. , 56 ( No. 12 ) : 3650 – 3658 .
   Google Scholar
• Ahn , H.-R. , Wolff , I. and Chang , I.-S. 1997 . Arbitrary termination impedance, arbitrary power divisions and small-sized ring hybrids . IEEE Transactions on Microwave Theory and Techniques , 45 ( No. 12 ) : 2241 – 2247 .
   Google Scholar
• 2008 . “ 3D EM-field simulation for high performance electronic design ” . Pittsburgh , PA : Ansoft Corp . Ansoft HFSS ver. 11
   Google Scholar