An adaptive reactance-assisted antenna system for the MIMO uplink

The paper describes a novel adaptive antenna system (AAS) capable of changing its transmission parameters via a tunable passive radiator according to the structure of the RF propagation channel. The proposed AAS is intended for users' handheld terminals as it addresses the physical size constraints of mobile units. Moreover, the proposed AAS relies on partial channel knowledge when tuning to a different loading state for maximizing the average rate of communication.

[1]  Henry Jasik,et al.  Antenna engineering handbook , 1961 .

[2]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[3]  Yuhong Yang.  Elements of Information Theory (2nd ed.). Thomas M. Cover and Joy A. Thomas , 2008 .

[4]  D. Pinchera,et al.  Improving Channel Capacity Using Adaptive MIMO Antennas , 2006, IEEE Transactions on Antennas and Propagation.

[5]  N. Honma,et al.  Proposal of compact MIMO terminal antenna employing Yagi-Uda array with common director elements , 2007, 2007 IEEE Antennas and Propagation Society International Symposium.

[6]  T. Ohira,et al.  Design of electronically steerable passive array radiator (ESPAR) antennas , 2000, IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (C.

[7]  Nicola Marchetti,et al.  MIMO transmission and reception techniques using three-element ESPAR antennas , 2009, IEEE Communications Letters.

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

[9]  Buon Kiong Lau,et al.  Optimal Single-Port Matching Impedance for Capacity Maximization in Compact MIMO Arrays , 2008, IEEE Transactions on Antennas and Propagation.

[10]  R. King.  Electromagnetic waves and antennas above and below the surface of the earth , 1979 .

[11]  Claude Oestges,et al.  MIMO Wireless Communications: From Real-World Propagation to Space-Time Code Design , 2007 .

[12]  Joseph M. Kahn,et al.  Fading correlation and its effect on the capacity of multielement antenna systems , 2000, IEEE Trans. Commun..

[13]  Joseph M. Kahn,et al.  Fading correlation and its effect on the capacity of multi-element antenna systems , 1998, ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384).

[14]  Constantinos B. Papadias,et al.  A universal encoding scheme for MIMO transmission using a single active element for PSK modulation schemes , 2009, IEEE Transactions on Wireless Communications.

[15]  Michael A. Jensen,et al.  Modeling the statistical time and angle of arrival characteristics of an indoor multipath channel , 2000, IEEE Journal on Selected Areas in Communications.

[16]  Thomas M. Cover,et al.  Elements of Information Theory , 2005 .