Increasing channel capacity on MIMO system employing adaptive pattern/polarization reconfigurable antenna

This paper presents a pattern/polarization reconfigurable single turn square spiral microstrip antenna that is designed to operate in the 5 GHz indoor band and tested with Intel-developed CMOS MIMO transceivers. Experimental results show that different environments between transmitter and receiver antenna MIMO system require different antenna configurations to achieve lower correlation between paths and increase the throughput.

[1]  Michael A. Jensen,et al.  MIMO Wireless Channel Modeling and Experimental Characterization , 2005 .

[2]  T. Svantesson On capacity and correlation of multi-antenna systems employing multiple polarizations , 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).

[3]  J.T. Bernhard,et al.  Integration of packaged RF MEMS switches with radiation pattern reconfigurable square spiral microstrip antennas , 2006, IEEE Transactions on Antennas and Propagation.

[4]  Donald C. Cox,et al.  Effect of antenna polarization on the capacity of a multiple element system in an indoor environment , 2002, IEEE J. Sel. Areas Commun..

[5]  Jack H. Winters,et al.  On the Capacity of Radio Communication Systems with Diversity in a Rayleigh Fading Environment , 1987, IEEE J. Sel. Areas Commun..

[6]  R. Bishop,et al.  A 5GHz 108Mb/s 2x2 MIMO Transceiver with Fully Integrated +16dBm PAs in 90nm CMOS , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[7]  Mohinder Jankiraman,et al.  Space-Time Codes and Mimo Systems , 2004 .

[8]  R. Bishop,et al.  A 5-GHz 108-Mb/s 2 $\times$2 MIMO Transceiver RFIC With Fully Integrated 20.5-dBm ${\rm P}_{\rm 1dB}$ Power Amplifiers in 90-nm CMOS , 2006, IEEE Journal of Solid-State Circuits.

[9]  R. Bishop,et al.  A 5-GHz 20-dBm Power Amplifier With Digitally Assisted AM-PM Correction in a 90-nm CMOS Process , 2006, IEEE Journal of Solid-State Circuits.

[10]  Helmut Bölcskei,et al.  Performance of multiantenna signaling techniques in the presence of polarization diversity , 2002, IEEE Trans. Signal Process..

[11]  J.T. Bernhard,et al.  A novel radiation pattern and frequency reconfigurable single turn square spiral microstrip antenna , 2003, IEEE Microwave and Wireless Components Letters.

[12]  Partha P. Mitra,et al.  Tripling the capacity of wireless communications using electromagnetic polarization , 2001, Nature.

[13]  W. Stutzman,et al.  Spatial, polarization, and pattern diversity for wireless handheld terminals , 2001 .

[14]  John M. Cioffi,et al.  Spatio-temporal coding for wireless communication , 1998, IEEE Trans. Commun..

[15]  J.T. Bernhard,et al.  Reconfigurable portable antenna systems for high-speed wireless communication , 2003, 2003 IEEE Topical Conference on Wireless Communication Technology.

[16]  John W. M. Rogers,et al.  A fully integrated multiband MIMO WLAN transceiver RFIC , 2005, IEEE J. Solid State Circuits.