Millimeter-Wave MIMO Array Based on Semi-Circular Topology

A novel generic two dimensional (2D) sparse multiple-input-multiple (MIMO) topology is proposed. Based on this topology, a real-time, compact demonstrator is realized at millimeter-wave range with narrow frequency band. It shows that the topology reduces hardware effort. Theoretical and experimental studies of focusing characteristics of the demonstrator are performed. These studies demonstrate that the proposed topology provides comparable focusing capabilities to another novel topology such as curvilinear configuration. Imaging capability of the proposed array is experimentally demonstrated. It is shown that the demonstrator is favorable to be employed on mobile platforms for fast and accurate imaging.

[1]  Brian Y. Lattimer,et al.  Evaluation of Navigation Sensors in Fire Smoke Environments , 2014 .

[2]  LeRoy A. Gorham,et al.  SAR image formation toolbox for MATLAB , 2010, Defense + Commercial Sensing.

[3]  B. Steinberg,et al.  Ultrasparse, ultrawideband arrays , 1998, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[4]  P. Napier,et al.  The very large array: Design and performance of a modern synthesis radio telescope , 1983, Proceedings of the IEEE.

[5]  Figen S. Oktem,et al.  Optimal design of sparse MIMO arrays for near-field ultrawideband imaging , 2017, 2017 25th European Signal Processing Conference (EUSIPCO).

[6]  F. Harris.  On the use of windows for harmonic analysis with the discrete Fourier transform , 1978, Proceedings of the IEEE.

[7]  B. S. Robinson,et al.  Synthetic focus imaging using partial datasets , 1994, 1994 Proceedings of IEEE Ultrasonics Symposium.

[8]  Brian Y. Lattimer,et al.  Firefighting Robot Stereo Infrared Vision and Radar Sensor Fusion for Imaging through Smoke , 2015 .

[9]  G. Y. Fang,et al.  A novel two-dimensional MIMO array topology for UWB near-field high-resolution imaging , 2016, 2016 16th International Conference on Ground Penetrating Radar (GPR).

[10]  Nils Pohl,et al.  Near and far field focusing patterns for a 2D sparse MIMO array , 2017, 2017 11th European Conference on Antennas and Propagation (EUCAP).

[11]  Sherif Sayed Aboelyazeed Ahmed,et al.  Electronic mircowave imaging with planar multistatic arrays , 2013 .

[12]  Nils Pohl,et al.  Focusing patterns within far and near field for a novel 2D sparse MIMO array , 2017, 2017 47th European Microwave Conference (EuMC).

[13]  Siying Wang,et al.  Imaging Characteristics of a 24 × 24 Channel MIMO FMCW Radar based on a SiGe:C Chipset , 2019, 2019 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP).

[14]  Lorenz-Peter Schmidt,et al.  Multistatic mm-Wave Imaging with Planar 2D-Arrays , 2009, 2009 German Microwave Conference.

[15]  Nils Pohl,et al.  A Compact 24 × 24 Channel MIMO FMCW Radar System Using a Substrate Integrated Waveguide-Based Reference Distribution Backplane , 2020, IEEE Transactions on Microwave Theory and Techniques.

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

[17]  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).

[18]  Yoshimitsu Aoki,et al.  The support system of the firefighter's activity by detecting objects in smoke space , 2005, International Symposium on Optomechatronic Technologies.

[19]  Hongnian Yu,et al.  Robot-assisted smart firefighting and interdisciplinary perspectives , 2016, 2016 22nd International Conference on Automation and Computing (ICAC).

[20]  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.

[21]  Arnulf Leuther,et al.  ${W}$ -Band Time-Domain Multiplexing FMCW MIMO Radar for Far-Field 3-D Imaging , 2017, IEEE Transactions on Microwave Theory and Techniques.

[22]  G. R. Lockwood,et al.  Optimizing sparse two-dimensional transducer arrays using an effective aperture approach , 1994, 1994 Proceedings of IEEE Ultrasonics Symposium.

[23]  Figen S. Oktem,et al.  Optimal MIMO array configuration for ultrawideband microwave imaging , 2017, 2017 25th Signal Processing and Communications Applications Conference (SIU).

[24]  Guangyou Fang,et al.  A Novel Two-Dimensional Sparse MIMO Array Topology for UWB Short-Range Imaging , 2016, IEEE Antennas and Wireless Propagation Letters.

[25]  H. Kuno.  CHAPTER 2 – IMPATT Devices for Generation of Millimeter Waves , 1979 .

[26]  A. Yarovoy,et al.  Experimental verification of 2D UWB MIMO antenna array for near-field imaging radar , 2009, 2009 European Microwave Conference (EuMC).

[27]  R. Willey,et al.  Space tapaering of linear and planar arrays , 1962 .