Near and far field focusing patterns for a 2D sparse MIMO array

A geometrically simple circular array topology for two dimensional (2D) sparse multiple-input-multiple-output (MIMO) array is proposed. The focusing and imaging properties of the array in the millimeter-wave range with narrow-bandwidth are studied by simulation. The results for the focusing property show that the array has decent sidelobe levels over a wide field of view within near and far field. Imaging capability of the array presents that point-like targets are well reconstructed with a high dynamic range.

[1]  A. G. Yarovoy,et al.  Study on Two-Dimensional Sparse MIMO UWB Arrays for High Resolution Near-Field Imaging , 2012, IEEE Transactions on Antennas and Propagation.

[2]  Thomas E. Hall,et al.  Three-dimensional millimeter-wave imaging for concealed weapon detection , 2001 .

[3]  Lorenz-Peter Schmidt,et al.  Novel fully electronic active real-time millimeter-wave imaging system based on a planar multistatic sparse array , 2011, 2011 IEEE MTT-S International Microwave Symposium.

[4]  D.W. Bliss,et al.  MIMO Radar Medical Imaging: Self-Interference Mitigation for Breast Tumor Detection , 2006, 2006 Fortieth Asilomar Conference on Signals, Systems and Computers.

[5]  Joachim H. G. Ender,et al.  System architectures and algorithms for radar imaging by MIMO-SAR , 2009, 2009 IEEE Radar Conference.

[6]  J. Sherman.  Properties of focused apertures in the fresnel region , 1962 .

[7]  Nils Pohl,et al.  Comparison of near and far field focusing patterns for two-dimensional sparse MIMO arrays , 2016, 2016 10th European Conference on Antennas and Propagation (EuCAP).

[8]  R. N. Anderton,et al.  Millimeter-Wave and Submillimeter-Wave Imaging for Security and Surveillance , 2007, Proceedings of the IEEE.

[9]  Mustafa Karaman,et al.  Optimizing circular ring arrays for forward- looking IVUS imaging , 2011, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.