A Reduced Size Planar Grid Array Antenna for Automotive Radar Sensors

A new configuration of a planar grid array antenna for automotive radar applications operating in the 77–81 GHz frequency band is introduced. The proposed array is based on miniaturized loop elements, which are designed to maintain the mutual interelement distance along the azimuthal plane to less than half free-space wavelength, thus allowing a better scanning performance in the final radar system. Moreover, to enhance the gain bandwidth performance, the antenna adopts multiresonant cells realized using variably dimensioned radiation elements. The proposed design was validated experimentally and it is fully compliant with multichannel monolithic microwave integrated circuits (MMICs) designed for automotive radar sensor applications.

[1]  Luigi Boccia,et al.  A preliminary study on a reduced size planar grid array for automotive radars , 2015, 2015 9th European Conference on Antennas and Propagation (EuCAP).

[2]  J. Kraus.  A backward angle-fire array antenna , 1964 .

[3]  Duixian Liu,et al.  A Ball Grid Array Package With a Microstrip Grid Array Antenna for a Single-Chip 60-GHz Receiver , 2011, IEEE Transactions on Antennas and Propagation.

[4]  W. Hong,et al.  Planar series-fed antenna array for 77 GHz automotive radar , 2017, 2017 Sixth Asia-Pacific Conference on Antennas and Propagation (APCAP).

[5]  R. Conti,et al.  The wire grid microstrip antenna , 1981 .

[6]  W. Menzel,et al.  A 79 GHz differentially fed grid array antenna , 2011, 2011 8th European Radar Conference.

[7]  H. Nakano,et al.  Grid array antennas , 1997, IEEE Antennas and Propagation Society International Symposium 1997. Digest.

[8]  Yinggang Li,et al.  Integration of a 140 GHz Packaged LTCC Grid Array Antenna With an InP Detector , 2015, IEEE Transactions on Components, Packaging and Manufacturing Technology.

[9]  Joseph Tabrikian,et al.  Cognitive antenna selection for DOA estimation in automotive radar , 2016, 2016 IEEE Radar Conference (RadarConf).

[10]  T. Zwick,et al.  Millimeter-Wave Technology for Automotive Radar Sensors in the 77 GHz Frequency Band , 2012, IEEE Transactions on Microwave Theory and Techniques.

[11]  L. Boccia,et al.  Substrate integrated power combiners , 2012, 2012 6th European Conference on Antennas and Propagation (EUCAP).

[12]  Xin Wang,et al.  A 79-GHz Radar Sensor in LTCC Technology Using Grid Array Antennas , 2013, IEEE Transactions on Microwave Theory and Techniques.

[13]  Y. P. Zhang,et al.  Analysis and synthesis of millimeter-wave microstrip grid-array antennas , 2011, IEEE Antennas and Propagation Magazine.

[14]  J. Yamauchi,et al.  A fast MoM calculation technique using sinusoidal basis and testing functions for a wire on a dielectric substrate and its application to meander loop and grid array antennas , 2005, IEEE Transactions on Antennas and Propagation.

[15]  Wolfgang Menzel,et al.  Antenna Concepts for Millimeter-Wave Automotive Radar Sensors , 2012, Proceedings of the IEEE.

[16]  Wei Hong,et al.  Optimization and Implementation of SIW Slot Array for Both Medium- and Long-Range 77 GHz Automotive Radar Application , 2018, IEEE Transactions on Antennas and Propagation.

[17]  G Amendola,et al.  Method of Moments Analysis of Slotted Substrate Integrated Waveguide Arrays , 2011, IEEE Transactions on Antennas and Propagation.

[18]  R. Weigel,et al.  System Design of a 77 GHz Automotive Radar Sensor with Superresolution DOA Estimation , 2007, 2007 International Symposium on Signals, Systems and Electronics.